SN74HC623

Name: SN74HC623
Brand: TI
SKU: SN74HC623
Price: 3.153 USD

現行

具有 3 態輸出的八路匯流排收發器

立即訂購

產品規格表

document-pdfAcrobat SN54HC623, SN74HC623 datasheet (Rev. C) (英文)

SN74HC623

現行

產品規格表

立即訂購

產品詳細資料

Supply voltage (min) (V)

2

Supply voltage (max) (V)

6

Number of channels

8

IOL (max) (mA)

7.8

IOH (max) (mA)

-7.8

Input type

CMOS

Output type

CMOS

Features

Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode

Technology family

HC

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Supply voltage (min) (V)

2

Supply voltage (max) (V)

6

Number of channels

8

IOL (max) (mA)

7.8

IOH (max) (mA)

-7.8

Input type

CMOS

Output type

CMOS

Features

Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode

Technology family

HC

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Wide Operating Voltage Range of 2 V to 6 V
High-Current 3-State Outputs Can Drive Up To 15 LSTTL Loads
Low Power Consumption, 80-µA Max I_CC
Typical t_pd = 8 ns
±6-mA Output Drive at 5 V
Low Input Current of 1 µA Max
Lock Bus-Latch Capability
True Logic

Wide Operating Voltage Range of 2 V to 6 V
High-Current 3-State Outputs Can Drive Up To 15 LSTTL Loads
Low Power Consumption, 80-µA Max I_CC
Typical t_pd = 8 ns
±6-mA Output Drive at 5 V
Low Input Current of 1 µA Max
Lock Bus-Latch Capability
True Logic

These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation allows for maximum flexibility in timing.

The ’HC623 devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending upon the logic levels at the output-enable (OEAB and OEBA\) inputs.

OEAB and OEBA\ disable the device so that the buses are effectively isolated. The dual-enable configuration gives the transceivers the capability to store data by simultaneously enabling OEAB and OEBA\. Each output reinforces its input in this transceiver configuration. When both OEAB and OEBA\ are enabled and all other data sources to the two sets of bus lines are in the high-impedance state, both sets of bus lines (16 total) remain at their last states. The 8-bit codes appearing on the two sets of buses are identical.

These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation allows for maximum flexibility in timing.

The ’HC623 devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending upon the logic levels at the output-enable (OEAB and OEBA\) inputs.

OEAB and OEBA\ disable the device so that the buses are effectively isolated. The dual-enable configuration gives the transceivers the capability to store data by simultaneously enabling OEAB and OEBA\. Each output reinforces its input in this transceiver configuration. When both OEAB and OEBA\ are enabled and all other data sources to the two sets of bus lines are in the high-impedance state, both sets of bus lines (16 total) remain at their last states. The 8-bit codes appearing on the two sets of buses are identical.

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