UNISONIC TECHNOLOGIES CO., LTD
U74HC165
8-BIT PARALLEL-LOAD SHIFT REGISTER
DESCRIPTION
The U74HC165 is an 8-bit paral...
UNISONIC TECHNOLOGIES CO., LTD
U74HC165
8-BIT PARALLEL-LOAD SHIFT REGISTER
DESCRIPTION
The U74HC165 is an 8-bit parallel-load shift register that, when clocked, shifts the data toward a serial (QH) output. Parallel-in access to each stage is provided by eight individual direct data (A-H) inputs that are enabled by a low level at
shift/load (SH/ LD ) input. The U74HC165 also features a
clock-inhibit (CLK INH) function and a complementary serial ( QH ) output.
Clocking is accomplished by a low-to-high transition of the
clock (CLK) input while SH/ LD is held high and CLK INH is held low. The functions of CLK and CLK INH are interchangeable. Since a low CLK and a low-to-high transition of CLK INH also accomplish clocking, CLK INH should be changed to the high level only while CLK is high. Parallel loading is inhibited when
SH/ LD is held high. While SH/ LD is low, the parallel inputs to the register are enabled independently of the levels of the CLK, CLK INH, or serial (SER) inputs.
FEATURES
* Complementary Outputs * Direct Overriding Load (Data) Inputs * Gated Clock Inputs * Parallel-to-Serial Data Conversion
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
U74HC165L-S16-R
U74HC165G-S16-R
U74HC165L-P16-R
U74HC165G-P16-R
Package
SOP-16 TSSOP-16
CMOS IC
SOP-16 TSSOP-16
Packing Tape Reel Tape Reel
MARKING
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QW-R502-A44.F
U74HC165
PIN CONFIGURATION
CMOS IC
PIN DESCRIPTION
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