SN54HC165 Datasheet | Texas Instruments

Features - 1 Wide Operating Voltage Range of 2 V to 6 V - Outputs Can Drive Up to 10 LSTTL Loads - Low Power Consumption, 80-µA Maximum ICC - Typical tpd = 13 ns - ±4-m A Output Drive at 5 V - Low Input Current of 1 µA Maximum - plementary Outputs - Direct Overriding Load (Data) Inputs - Gated Clock Inputs - Parallel-to-Serial Data Conversion - On Products pliant to MIL-PRF-38535, All Parameters Are Tested Unless Otherwise Noted. On All Other Products, Production Processing Does Not Necessarily Include Testing of All Parameters. 2 Applications - Programable Logic Controllers - Appliances - Video Display Systems - Output Expander - Keyboards 3 Description The SNx4HC165 devices are 8-bit parallel-load shift registers that, when clocked, shift 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 the shift/load (SH/LD) input. The SNx4HC165 devices also feature a clock-inhibit (CLK INH) function and a plementary serial (QH) output. Clocking is acplished 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. Because a low CLK and a low-to-high transition of CLK INH also acplish clocking, CLK INH must 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. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) SN74HC165D SOIC (16) 10.00 mm × 6.20 mm SN74HC165DB SSOP (16) 8.20 mm × 6.50 mm SN74HC165N PDIP (16) 6.60 mm × 18.92 mm SN74HC165NS SO (16) 8.20 mm × 9.90 mm SN74HC165PW TSSOP...