Refer to the PDF data sheet for device specific package drawings
The ISO7830x device is a high-performance, 3-channel digital isolator with 8000-VPK isolation voltage. This device has reinforced isolation certifications according to VDE, CSA, TUV and CQC. The isolator provides high electromagnetic immunity and low emissions at low power consumption, while isolating CMOS or LVCMOS digital I/Os.
Each isolation channel has a logic input and output buffer separated by silicon dioxide (SiO2) insulation barrier. This device comes with enable pins which can be used to put the respective outputs in high impedance for multi-master driving applications and to reduce power consumption. The ISO7830x device has three forward and no reverse-direction channels. If the input power or signal is lost, the default output is high for the ISO7830 device and low for the ISO7830F device. See Device Functional Modes for further details.
Used in conjunction with isolated power supplies, this device helps prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. Through innovative chip design and layout techniques, electromagnetic compatibility of ISO7830x has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. ISO7830x is available in a 16-pin SOIC wide-body (DW) and extra-wide body (DWW) packages.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
ISO7830
ISO7830F |
DW (16) | 10.30 mm × 7.50 mm |
DWW (16) | 10.30 mm × 14.0 mm |
Changes from A Revision (September 2015) to B Revision
Changes from * Revision (July 2015) to A Revision
MIN | MAX | UNIT | |||
---|---|---|---|---|---|
VCC1
VCC2 |
Supply voltage(2) | –0.5 | 6 | V | |
V | Voltage at INx, OUTx, or EN2x | –0.5 | VCCx + 0.5(3) | V | |
IO | Output current | –15 | 15 | mA | |
TJ | Junction temperature | –55 | 150 | °C | |
Tstg | Storage temperature | –65 | 150 | °C |
VALUE | UNIT | |||
---|---|---|---|---|
V(ESD) | Electrostatic discharge | Human body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) | ±6000 | V |
Charged device model (CDM), per JEDEC specification JESD22-C101(2) | ±1500 |
MIN | NOM | MAX | UNIT | |||
---|---|---|---|---|---|---|
VCC1, VCC2 | Supply voltage | 2.25 | 5.5 | V | ||
IOH | High-level output current | VCCO(1) = 5 V | –4 | mA | ||
VCCO(1) = 3.3 V | –2 | |||||
VCCO(1) = 2.5 V | –1 | |||||
IOL | Low-level output current | VCCO(1) = 5 V | 4 | mA | ||
VCCO(1) = 3.3 V | 2 | |||||
VCCO(1) = 2.5 V | 1 | |||||
VIH | High-level input voltage | 0.7 × VCCI(1) | VCCI(1) | V | ||
VIL | Low-level input voltage | 0 | 0.3 × VCCI(1) | V | ||
DR | Signaling rate | 0 | 100 | Mbps | ||
TA | Ambient temperature | –55 | 25 | 125 | °C |
THERMAL METRIC(1) | ISO7830 | UNIT | |||
---|---|---|---|---|---|
DW (SOIC) | DWW (SOIC) | ||||
16 PINS | 16 PINS | ||||
RθJA | Junction-to-ambient thermal resistance | 81.1 | 83.4 | °C/W | |
RθJC(top) | Junction-to-case(top) thermal resistance | 43.8 | 45.2 | °C/W | |
RθJB | Junction-to-board thermal resistance | 45.7 | 54.1 | °C/W | |
ψJT | Junction-to-top characterization parameter | 17.0 | 17.6 | °C/W | |
ψJB | Junction-to-board characterization parameter | 45.2 | 53.3 | °C/W | |
RθJC(bottom) | Junction-to-case(bottom) thermal resistance | — | — | °C/W |
PARAMETER | TEST CONDITIONS | SPECIFICATION | UNIT | ||
---|---|---|---|---|---|
DW | DWW | ||||
CLR | External clearance(1) | Shortest terminal-to-terminal distance through air | >8 | >14.5 | mm |
CPG | External creepage(1) | Shortest terminal-to-terminal distance across the package surface | >8 | >14.5 | mm |
DTI | Distance through the insulation | Minimum internal gap (internal clearance) | >21 | >21 | μm |
CTI | Comparative tracking index | DIN EN 60112 (VDE 0303-11); IEC 60112; UL 746A | >600 | >600 | V |
Material group | I | I | |||
Overvoltage category per IEC 60664-1 | Rated mains voltage ≤ 600 VRMS | I–IV | I–IV | ||
Rated mains voltage ≤ 1000 VRMS | I–III | I–IV | |||
DIN V VDE V 0884–10 (VDE V 0884–10):2006-12(2) | |||||
VIOWM | Maximum isolation working voltage | Time dependent dielectric breakdown (TDDB) Test; see Figure 1 and Figure 2 | 1500 | 2000 | VRMS |
2121 | 2828 | VDC | |||
VIOTM | Maximum transient isolation voltage | VTEST = VIOTM
t = 60 s (qualification) t= 1 s (100% production) |
8000 | 8000 | VPK |
VIOSM | Maximum surge isolation voltage for reinforced insulation(3) | Test method per IEC 60065, 1.2/50 µs waveform, VTEST = 1.6 × VIOSM = 12800 VPK (qualification) |
8000 | 8000 | VPK |
VIORM | Maximum repetitive peak isolation voltage | 2121 | 2828 | VPK | |
VPR | Input-to-output test voltage | Method a, After Input/Output safety test subgroup 2/3, VPR = VIORM × 1.2, t = 10 s, Partial discharge < 5 pC |
2545 | 3394 | VPK |
Method a, After environmental tests subgroup 1, VPR = VIORM × 1.6, t = 10 s, Partial Discharge < 5 pC |
3394 | 4525 | |||
Method b1, VPR = VIORM × 1.875, t = 1 s (100% Production test) Partial discharge < 5 pC |
3977 | 5303 | |||
CIO | Barrier capacitance, input to output(4) | VIO = 0.4 × sin (2πft), f = 1 MHz | ~1 | ~1 | pF |
RIO | Isolation resistance, input to output(4) | VIO = 500 V, TA = 25°C | >1012 | >1012 | Ω |
VIO = 500 V, 100°C ≤ TA ≤ max | >1011 | >1011 | Ω | ||
RS | Isolation resistance | VIO = 500 V at TS | >109 | >109 | Ω |
Pollution degree | 2 | 2 | |||
Climatic category | 55/125/21 | 55/125/21 | |||
UL 1577 | |||||
VISO | Withstanding isolation voltage | VTEST = VISO = 5700 VRMS, t = 60 s (qualification), VTEST = 1.2 × VISO = 6840 VRMS, t = 1 s (100% production) |
5700 | 5700 | VRMS |
VDE | CSA | UL | CQC | TUV |
---|---|---|---|---|
Certified according to DIN V VDE V 0884–10 (VDE V 0884–10):2006-12 and DIN EN 60950-1 (VDE 0805 Teil 1):2011-01 | Approved under CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 60601-1 | Certified according to UL 1577 Component Recognition Program | Certified according to GB 4943.1-2011 | Certified according to EN 61010-1:2010 (3rd Ed) and EN 60950-1:2006/A11:2009/A1:2010/ A12:2011/A2:2013 |
Reinforced insulation Maximum transient isolation voltage, 8000 VPK; Maximum repetitive peak isolation voltage, 2121 VPK (DW), 2828 VPK (DWW); Maximum surge isolation voltage, 8000 VPK |
Reinforced insulation per CSA 60950-1-07+A1+A2 and IEC 60950-1 2nd Ed., 800 VRMS (DW) and 1450 VRMS (DWW) maximum working voltage (pollution degree 2, material group I); | Single protection, 5700 VRMS | Reinforced Insulation, Altitude ≤ 5000 m, Tropical Climate, 250 VRMS maximum working voltage | 5700 VRMS Reinforced insulation per EN 61010-1:2010 (3rd Ed) up to working voltage of 600 VRMS (DW package) and 1000 VRMS (DWW package) |
2 MOPP (Means of Patient Protection) per CSA 60601-1:14 and IEC 60601-1 Ed. 3.1, 250 VRMS (354 VPK) maximum working voltage | 5700 VRMS Reinforced insulation per EN 60950-1:2006/A11:2009/A1:2010/ A12:2011/A2:2013 up to working voltage of 800 VRMS (DW package) and 1450 VRMS (DWW package) |
|||
Certificate number: 40040142 | Master contract number: 220991 | File number: E181974 | Certificate number: CQC15001121716 | Client ID number: 77311 |
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
---|---|---|---|---|---|---|
DW PACKAGE | ||||||
IS | Safety input, output, or supply current | RθJA = 81.1°C/W, VI = 5.5 V, TJ = 150°C, TA = 25°C, see Figure 3 | 280 | mA | ||
RθJA = 81.1°C/W, VI = 3.6 V, TJ = 150°C, TA = 25°C, see Figure 3 | 428 | |||||
RθJA = 81.1°C/W, VI = 2.75 V, TJ = 150°C, TA = 25°C, see Figure 3 | 560 | |||||
PS | Safety input, output, or total power | RθJA = 81.1°C/W, TJ = 150°C, TA = 25°C, see Figure 5 | 1541 | mW | ||
TS | Maximum safety temperature | 150 | °C | |||
DWW PACKAGE | ||||||
IS | Safety input, output, or supply current | RθJA = 83.4°C/W, VI = 5.5 V, TJ = 150°C, TA = 25°C, see Figure 4 | 273 | mA | ||
RθJA = 83.4°C/W, VI = 3.6 V, TJ = 150°C, TA = 25°C, see Figure 4 | 416 | |||||
RθJA = 83.4°C/W, VI = 2.75 V, TJ = 150°C, TA = 25°C, see Figure 4 | 545 | |||||
PS | Safety input, output, or total power | RθJA = 83.4°C/W, TJ = 150°C, TA = 25°C, see Figure 6 | 1499 | mW | ||
TS | Maximum safety temperature | 150 | °C |
The maximum safety temperature is the maximum junction temperature specified for the device. The power dissipation and junction-to-air thermal impedance of the device installed in the application hardware determines the junction temperature. The assumed junction-to-air thermal resistance in the Thermal Information is that of a device installed on a high-K test board for leaded surface mount packages. The power is the recommended maximum input voltage times the current. The junction temperature is then the ambient temperature plus the power times the junction-to-air thermal resistance.
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | ||
---|---|---|---|---|---|---|---|
VOH | High-level output voltage | IOH = –4 mA; see Figure 13 | VCCO(1) – 0.4 | VCCO – 0.2 | V | ||
VOL | Low-level output voltage | IOL = 4 mA; see Figure 13 | 0.2 | 0.4 | V | ||
VI(HYS) | Input threshold voltage hysteresis | 0.1 × VCCI(1) | V | ||||
IIH | High-level input current | VIH = VCCI at INx or EN2 | 10 | μA | |||
IIL | Low-level input current | VIL = 0 V at INx or EN2 | –10 | μA | |||
CMTI | Common-mode transient immunity | VI = VCCI or 0 V, VCM = 1500 V; see Figure 16 | 100 | kV/μs | |||
CI | Input capacitance (2) | VI = VCC / 2 + 0.4 × sin (2πft), f = 1 MHz, VCC = 5 V | 2 | pF |
PARAMETER | TEST CONDITIONS | SUPPLY CURRENT | MIN | TYP | MAX | UNIT | |
---|---|---|---|---|---|---|---|
Supply current - disable | EN2 = 0 V, VI = 0 V (Devices with suffix F), VI = VCCI (Devices without suffix F) |
ICC1 | 1.1 | 1.8 | mA | ||
ICC2 | 0.4 | 0.6 | |||||
EN2 = 0 V, VI = VCCI (Devices with suffix F), VI = 0 V (Devices without suffix F) |
ICC1 | 4.6 | 6.6 | ||||
ICC2 | 0.4 | 0.6 | |||||
Supply current - DC signal | VI = 0 V (Devices with suffix F), VI = VCCI (Devices without suffix F) |
ICC1 | 1.1 | 2 | |||
ICC2 | 1.7 | 2.7 | |||||
VI = VCCI (Devices with suffix F), VI = 0 V (Devices without suffix F) |
ICC1 | 4.6 | 6.8 | ||||
ICC2 | 1.9 | 2.8 | |||||
Supply current - AC signal | All channels switching with square wave clock input; CL = 15 pF |
1 Mbps | ICC1 | 2.8 | 4.4 | ||
ICC2 | 1.9 | 3 | |||||
10 Mbps | ICC1 | 2.9 | 4.4 | ||||
ICC2 | 3.3 | 4.6 | |||||
100 Mbps | ICC1 | 3.9 | 4.9 | ||||
ICC2 | 17.5 | 20.8 |
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | ||
---|---|---|---|---|---|---|---|
VOH | High-level output voltage | IOH = –2 mA; see Figure 13 | VCCO(1) – 0.4 | VCCO – 0.2 | V | ||
VOL | Low-level output voltage | IOL = 2 mA; see Figure 13 | 0.2 | 0.4 | V | ||
VI(HYS) | Input threshold voltage hysteresis | 0.1 × VCCI(1) | V | ||||
IIH | High-level input current | VIH = VCCI at INx or EN2 | 10 | μA | |||
IIL | Low-level input current | VIL = 0 V at INx or EN2 | –10 | μA | |||
CMTI | Common-mode transient immunity | VI = VCCI or 0 V, VCM = 1500 V; see Figure 16 | 100 | kV/μs |
PARAMETER | TEST CONDITIONS | SUPPLY CURRENT | MIN | TYP | MAX | UNIT | |
---|---|---|---|---|---|---|---|
Supply current - disable | EN2 = 0 V, VI = 0 V (Devices with suffix F), VI = VCCI (Devices without suffix F) |
ICC1 | 1.1 | 1.8 | mA | ||
ICC2 | 0.3 | 0.6 | |||||
EN2 = 0 V, VI = VCCI (Devices with suffix F), VI = 0 V (Devices without suffix F) |
ICC1 | 4.6 | 6.6 | ||||
ICC2 | 0.3 | 0.6 | |||||
Supply current - DC signal | VI = 0 V (Devices with suffix F), VI = VCCI (Devices without suffix F) |
ICC1 | 1.1 | 2 | |||
ICC2 | 1.7 | 2.6 | |||||
VI = VCCI (Devices with suffix F), VI = 0 V (Devices without suffix F) |
ICC1 | 4.6 | 6.8 | ||||
ICC2 | 1.9 | 2.8 | |||||
Supply current - AC signal | All channels switching with square wave clock input; CL = 15 pF |
1 Mbps | ICC1 | 2.8 | 4.4 | ||
ICC2 | 1.9 | 2.9 | |||||
10 Mbps | ICC1 | 2.9 | 4.4 | ||||
ICC2 | 2.9 | 4.1 | |||||
100 Mbps | ICC1 | 3.5 | 4.8 | ||||
ICC2 | 13.2 | 16 |
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | ||
---|---|---|---|---|---|---|---|
VOH | High-level output voltage | IOH = –1 mA; see Figure 13 | VCCO(1) – 0.4 | VCCO – 0.2 | V | ||
VOL | Low-level output voltage | IOL = 1 mA; see Figure 13 | 0.2 | 0.4 | V | ||
VI(HYS) | Input threshold voltage hysteresis | 0.1 × VCCI(1) | V | ||||
IIH | High-level input current | VIH = VCCI at INx or EN2 | 10 | μA | |||
IIL | Low-level input current | VIL = 0 V at INx or EN2 | –10 | μA | |||
CMTI | Common-mode transient immunity | VI = VCCI or 0 V, VCM = 1500 V; see Figure 16 | 100 | kV/μs |
PARAMETER | TEST CONDITIONS | SUPPLY CURRENT | MIN | TYP | MAX | UNIT | |
---|---|---|---|---|---|---|---|
Supply current - disable | EN2 = 0 V, VI = 0 V (Devices with suffix F), VI = VCCI (Devices without suffix F) |
ICC1 | 1.1 | 1.8 | mA | ||
ICC2 | 0.3 | 0.6 | |||||
EN2 = 0 V, VI = VCCI (Devices with suffix F), VI = 0 V (Devices without suffix F) |
ICC1 | 4.6 | 6.6 | ||||
ICC2 | 0.3 | 0.6 | |||||
Supply current - DC signal | VI = 0 V (Devices with suffix F), VI = VCCI (Devices without suffix F) |
ICC1 | 1.1 | 2 | |||
ICC2 | 1.7 | 2.6 | |||||
VI = VCCI (Devices with suffix F), VI = 0 V (Devices without suffix F) |
ICC1 | 4.6 | 6.8 | ||||
ICC2 | 1.8 | 2.8 | |||||
Supply current - AC signal | All channels switching with square wave clock input; CL = 15 pF |
1 Mbps | ICC1 | 2.8 | 4.4 | ||
ICC2 | 1.8 | 2.9 | |||||
10 Mbps | ICC1 | 2.9 | 4.4 | ||||
ICC2 | 2.6 | 3.7 | |||||
100 Mbps | ICC1 | 3.4 | 4.7 | ||||
ICC2 | 10.3 | 12.7 |
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | ||
---|---|---|---|---|---|---|---|
tPLH, tPHL | Propagation delay time | See Figure 13 | 6 | 11 | 16 | ns | |
PWD | Pulse width distortion(1) |tPHL – tPLH| | 0.55 | 4.1 | ns | |||
tsk(o) | Channel-to-channel output skew time(2) | Same-direction channels | 2.5 | ns | |||
tsk(pp) | Part-to-part skew time(3) | 4.5 | ns | ||||
tr | Output signal rise time | See Figure 13 | 1.7 | 3.9 | ns | ||
tf | Output signal fall time | 1.9 | 3.9 | ns | |||
tPHZ | Disable propagation delay, high-to-high impedance output | See Figure 14 | 12 | 20 | ns | ||
tPLZ | Disable propagation delay, low-to-high impedance output | 12 | 20 | ns | |||
tPZH | Enable propagation delay, high impedance-to-high output for ISO7830 | 10 | 20 | ns | |||
Enable propagation delay, high impedance-to-high output for ISO7830F | 2 | 2.5 | μs | ||||
tPZL | Enable propagation delay, high impedance-to-low output for ISO7830 | 2 | 2.5 | μs | |||
Enable propagation delay, high impedance-to-low output for ISO7830F | 10 | 20 | ns | ||||
tDO | Default output delay time from input power loss | Measured from the time VCC goes below 1.7 V. See Figure 15 | 0.2 | 9 | μs | ||
tie | Time interval error | 216 – 1 PRBS data at 100 Mbps | 0.90 | ns |
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | ||
---|---|---|---|---|---|---|---|
tPLH, tPHL | Propagation delay time | See Figure 13 | 6 | 10.8 | 16 | ns | |
PWD | Pulse width distortion(1) |tPHL – tPLH| | 0.7 | 4.2 | ns | |||
tsk(o) | Channel-to-channel output skew time(2) | Same-direction channels | 2.2 | ns | |||
tsk(pp) | Part-to-part skew time(3) | 4.5 | ns | ||||
tr | Output signal rise time | See Figure 13 | 0.8 | 3 | ns | ||
tf | Output signal fall time | 0.8 | 3 | ns | |||
tPHZ | Disable propagation delay, high-to-high impedance output | See Figure 14 | 17 | 32 | ns | ||
tPLZ | Disable propagation delay, low-to-high impedance output | 17 | 32 | ns | |||
tPZH | Enable propagation delay, high impedance-to-high output for ISO7830 | 17 | 32 | ns | |||
Enable propagation delay, high impedance-to-high output for ISO7830F | 2 | 2.5 | μs | ||||
tPZL | Enable propagation delay, high impedance-to-low output for ISO7830 | 2 | 2.5 | μs | |||
Enable propagation delay, high impedance-to-low output for ISO7830F | 17 | 32 | ns | ||||
tDO | Default output delay time from input power loss | Measured from the time VCC goes below 1.7 V. See Figure 15 | 0.2 | 9 | μs | ||
tie | Time interval error | 216 – 1 PRBS data at 100 Mbps | 0.91 | ns |
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
---|---|---|---|---|---|---|
tPLH, tPHL | Propagation delay time | See Figure 13 | 7.5 | 11.7 | 17.5 | ns |
PWD | Pulse width distortion(1) |tPHL – tPLH| | 0.66 | 4.2 | ns | ||
tsk(o) | Channel-to-channel output skew time(2) | Same-direction Channels | 2.2 | ns | ||
tsk(pp) | Part-to-part skew time(3) | 4.5 | ns | |||
tr | Output signal rise time | See Figure 13 | 1 | 3.5 | ns | |
tf | Output signal fall time | 1.2 | 3.5 | ns | ||
tPHZ | Disable propagation delay, high-to-high impedance output | See Figure 14 | 22 | 45 | ns | |
tPLZ | Disable propagation delay, low-to-high impedance output | 22 | 45 | ns | ||
tPZH | Enable propagation delay, high impedance-to-high output for ISO7830 | 18 | 45 | ns | ||
Enable propagation delay, high impedance-to-high output for ISO7830F | 2 | 2.5 | μs | |||
tPZL | Enable propagation delay, high impedance-to-low output for ISO7830 | 2 | 2.5 | μs | ||
Enable propagation delay, high impedance-to-low output for ISO7830F | 18 | 45 | ns | |||
tDO | Default output delay time from input power loss | Measured from the time VCC goes below 1.7 V. See Figure 15 | 0.2 | 9 | μs | |
tie | Time interval error | 216 – 1 PRBS data at 100 Mbps | 0.91 | ns |
TA upto 150°C | Operating lifetime = 135 years | |
Stress-voltage frequency = 60 Hz | ||
Isolation working voltage = 1500 VRMS |
TA upto 150°C | Operating lifetime = 34 years | |
Stress-voltage frequency = 60 Hz | ||
Isolation working voltage = 2000 VRMS |
TA = 25°C | CL = 15 pF |
TA = 25°C |
TA = 25°C | CL = No Load |
TA = 25°C |
The ISO7830x device has an ON-OFF keying (OOK) modulation scheme to transmit the digital data across a silicon dioxide based isolation barrier. The transmitter sends a high frequency carrier across the barrier to represent one digital state and sends no signal to represent the other digital state. The receiver demodulates the signal after advanced signal conditioning and produces the output through a buffer stage. If the EN pin is low then the output goes to high impedance. The ISO7830x device also incorporates advanced circuit techniques to maximize the CMTI performance and minimize the radiated emissions because of the high frequency carrier and IO buffer switching. The conceptual block diagram of a digital capacitive isolator, Figure 17, shows a functional block diagram of a typical channel.
Figure 18 shows a conceptual detail of how the ON-OFF keying scheme works.
Table 1 provides an overview of the device features.
PART NUMBER | CHANNEL DIRECTION | RATED ISOLATION | MAXIMUM DATA RATE | DEFAULT OUTPUT |
---|---|---|---|---|
ISO7830 | 3 Forward, 0 Reverse
|
5700 VRMS / 8000 VPK(1) | 100 Mbps | High |
ISO7830F | 3 Forward, 0 Reverse
|
5700 VRMS / 8000 VPK(1) | 100 Mbps | Low |
Many applications in harsh industrial environment are sensitive to disturbances such as electrostatic discharge (ESD), electrical fast transient (EFT), surge and electromagnetic emissions. These electromagnetic disturbances are regulated by international standards such as IEC 61000-4-x and CISPR 22. Although system-level performance and reliability depends, to a large extent, on the application board design and layout, the ISO7830x device incorporates many chip-level design improvements for overall system robustness. Some of these improvements include:
Table 2 lists the ISO7830x functional modes.
VCCI | VCCO | INPUT (INx)(3) |
OUTPUT ENABLE (EN2) |
OUTPUT (OUTx) |
COMMENTS |
---|---|---|---|---|---|
PU | PU | H | H or open | H | Normal Operation: A channel output assumes the logic state of the input. |
L | H or open | L | |||
Open | H or open | Default | Default mode: When INx is open, the corresponding channel output goes to its default logic state. Default is High for ISO7830 and Low for ISO7830F | ||
X | PU | X | L | Z | A low value of output enable causes the outputs to be high-impedance |
PD | PU | X | H or open | Default | Default mode: When VCCI is unpowered, a channel output assumes the logic state based on the selected default option. Default is High for ISO7830 and Low for ISO7830F
When VCCI transitions from unpowered to powered-up, a channel output assumes the logic state of the input. When VCCI transitions from powered-up to unpowered, channel output assumes the selected default state. |
X | PD | X | X | Undetermined | When VCCO is unpowered, a channel output state is undetermined (2). When VCCO transitions from unpowered to powered-up, a channel output assumes the logic state of the input |