SCPS199D
August 2014 – October 2016
TCA9538
PRODUCTION DATA.
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
I2C Interface Timing Requirements
6.7
RESET Timing Requirements
6.8
Switching Characteristics
6.9
Typical Characteristics
7
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
I/O Port
8.3.2
Interrupt Output (INT)
8.3.3
RESET Input
8.4
Device Functional Modes
8.4.1
Power-On Reset
8.5
Programming
8.5.1
I2C Interface
8.6
Register Map
8.6.1
Device Address
8.6.2
Control Register and Command Byte
8.6.3
Register Descriptions
8.6.3.1
Bus Transactions
8.6.3.1.1
Writes
8.6.3.1.2
Reads
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.1.1
Minimizing ICC When I/Os Control LEDs
9.2.2
Detailed Design Procedure
9.2.3
Application Curves
10
Power Supply Recommendations
10.1
Power-On Reset Requirements
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Documentation Support
12.1.1
Related Documentation
12.2
Receiving Notification of Documentation Updates
12.3
Community Resources
12.4
Trademarks
12.5
Electrostatic Discharge Caution
12.6
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
PW|16
MPDS361A
DB|16
MPDS507A
Thermal pad, mechanical data (Package|Pins)
Orderable Information
scps199d_oa
scps199d_pm
7 Parameter Measurement Information
A. C
L
includes probe and jig capacitance.
B. All inputs are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Z
O
= 50 Ω, t
r
/t
f
≤ 30 ns.
C. All parameters and waveforms are not applicable to all devices.
Figure 9. I
2
C Interface Load Circuit and Voltage Waveforms
A. C
L
includes probe and jig capacitance.
B. All inputs are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Z
O
= 50 Ω, t
r
/t
f
≤ 30 ns.
C. All parameters and waveforms are not applicable to all devices.
Figure 10. Interrupt Load Circuit and Voltage Waveforms
A. C
L
includes probe and jig capacitance.
B. All inputs are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Z
O
= 50 Ω, t
r
/t
f
≤ 30 ns.
C. The outputs are measured one at a time, with one transition per measurement.
D. All parameters and waveforms are not applicable to all devices.
Figure 11. P-Port Load Circuit and Voltage Waveforms
A. C
L
includes probe and jig capacitance.
B. All inputs are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Z
O
= 50 Ω, t
r
/t
f
≤ 30 ns.
C. The outputs are measured one at a time, with one transition per measurement.
D. I/Os are configured as inputs.
E. All parameters and waveforms are not applicable to all devices.
Figure 12. Reset Load Circuits and Voltage Waveforms