SN54HCT646, SN74HCT646
OCTAL BUS TRANSCEIVERS AND REGISTERS
WITH 3-STATE OUTPUTS
SCLS178C – MARCH 1984 – REVISED MARCH 2003 D
D
D
D Operating Voltage Range of 4.5 V to 5.5 V
Low Power Consumption, 80-ВµA Max ICC
Typical tpd = 12 ns
В±6-mA Output Drive at 5 V
Low Input Current of 1 ВµA Max
Inputs Are TTL-Voltage Compatible Independent Registers for A and B Buses
Multiplexed Real-Time and Stored Data
True Data Paths
High-Current 3-State Outputs Can Drive Up
To 15 LSTTL Loads SN54HCT646 . JT OR W PACKAGE
SN74HCT646 . DW OR NT PACKAGE
(TOP VIEW)
24 2 23 3 22 4 21 5 20 6 19 7
8
9 18
17
16 10 15 11 14 12 13 DIR …
