Datasheet Summary
SN54HC646, SN74HC646
OCTAL BUS TRANSCEIVERS AND REGISTERS
WITH 3-STATE OUTPUTS
SCLS150C
- DECEMBER 1982
- REVISED MARCH 2003
D Wide Operating Voltage Range of 2 V to 6 V D High-Current 3-State Outputs Can Drive Up
To 15 LSTTL Loads
D Low Power Consumption, 80-µA Max ICC D Typical tpd = 11 ns
D ±6-mA Output Drive at 5 V D Low Input Current of 1 µA Max D Independent Registers for A and B Buses D Multiplexed Real-Time and Stored Data D True Data Paths
SN54HC646 . . . JT OR W PACKAGE SN74HC646 . . . DW OR NT PACKAGE
(TOP VIEW)
SN54HC646 . . . FK PACKAGE (TOP VIEW)
DIR SAB CLKAB NC VCC CLKBA SBA
CLKAB SAB DIR A1 A2 A3 A4 A5 A6 A7 A8 GND
1 2 3 4 5 6 7 8 9 10 11 12
24 VCC 23 CLKBA 22 SBA...