SN54HC164, SN74HC164 8-BIT PARALLEL-OUT SERIAL SHIFT REGISTERS

Feature

Wide Operating Voltage Range of 2 V to 6 V

Outputs Can Drive Up To 10 LSTTL

Loads Low Power Consumption, 80-µA Max

ICC Typical tpd = 20 ns ±4-mA Output Drive at 5 V

Low Input Current of 1 µA

Max AND-Gated (Enable/Disable)

Serial Inputs Fully Buffered

Clock and Serial Inputs Direct Clear

description/ordering information

These 8-bit shift registers feature 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 setup time requirements are met. Clocking occurs on the low-to-high-level transition of CLK.

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC . . . . . . . . . . .. . . . . –0.5 V to 7 V

Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . –0.5 V to 7 V

Output voltage range, VO (see Note 1) . . . . . . . . . . –0.5 V to VCC + 0.5 V

Input clamp current, IIK (VI < 0) . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . –20 mA

Output clamp current, IOK (VO < 0 or VO > VCC) . . . .. . . . . . . . . . . . . . . . . . ±20 mA

Continuous output current, IO (VO = 0 to VCC) . . . . . . .  . . . . . . . . . ±25 mA

Continuous current through VCC or GND . . . . . . . . . . . . . ±75 mA

Package thermal impedance, θJA (see Note 2): DB package 70 .  . . . . . . . °C/W

DGV package 92 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . °C/W

DW package 58 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . °C/W

N package 69 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . °C/W

NS package 60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . °C/W

PW package 83 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . °C/W

Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C

PART OF STOCK