1 Features

? AEC-Q100 qualified for automotive applications:

– Device temperature grade 1: -40°C to +125°C

– Device HBM ESD classification level 2

– Device CDM ESD classification level C4B

? Available in wettable flank QFN package

? Operating voltage range of 4.5V to 5.5V

? TTL-compatible inputs

? Continuous ±24mA output drive at 5V

? Supports up to ±75mA output drive at 5V

in short bursts

? Drives 50Ω transmission lines

? Fast operation with delay of 14.9ns at 5V

2 Applications

? Increase the number of outputs on a

microcontroller

? Store up to 8 bits of data temporarily

3 Description

The SN74ACT164-Q1 device contains an 8-bit

shift register with AND-gated serial inputs and an

asynchronous clear (CLR) input. The gated serial (A

and B) inputs permit complete control over incoming

data; a low at either input inhibits entry of the new

data and resets the first flip-flop to the low level at

the next clock (CLK) pulse. A high-level input enables

the other input, which then determines the state of the

first flip-flop. Data at the serial inputs can be changed

while CLK is high or low, provided the minimum set-up

time requirements are met. Clocking occurs on the

low-to-high-level transition of CLK.