SN74LS166

更新时间： 2024-09-22 23:06:19

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
8页	135K
描述
LOW POWER SCHOTTKY

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中文翻译

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数据手册

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SN74LS166 数据手册

The SN74LS166 is an 8-Bit Shift Register. Designed with all inputs

buffered, the drive requirements are lowered to one 74LS standard

load. By utilizing input clamping diodes, switching transients are

minimized and system design simplified.

The LS166 is a parallel-in or serial-in, serial-out shift register and

has a complexity of 77 equivalent gates with gated clock inputs and an

overriding clear input. The shift/load input establishes the parallel-in

or serial-in mode. When high, this input enables the serial data input

and couples the eight flip-flops for serial shifting with each clock

pulse. Synchronous loading occurs on the next clock pulse when this is

low and the parallel data inputs are enabled. Serial data flow is

inhibited during parallel loading. Clocking is done on the low-to-high

level edge of the clock pulse via a two input positive NOR gate, which

permits one input to be used as a clock enable or clock inhibit function.

Clocking is inhibited when either of the clock inputs are held high,

holding either input low enables the other clock input. This will allow

the system clock to be free running and the register stopped on

command with the other clock input. A change from low-to-high on

the clock inhibit input should only be done when the clock input is

high. A buffered direct clear input overrides all other inputs, including

the clock, and sets all flip-flops to zero.

http://onsemi.com

LOW

POWER

SCHOTTKY

PLASTIC

N SUFFIX

CASE 648

• Synchronous Load

• Direct Overriding Clear

• Parallel to Serial Conversion

GUARANTEED OPERATING RANGES

Symbol

Parameter

Supply Voltage

Min

4.75

Typ

5.0

Max

5.25

Unit

SOIC

D SUFFIX

CASE 751B

Operating Ambient

Temperature Range

°C

Output Current – High

Output Current – Low

–0.4

8.0

ORDERING INFORMATION

Device

Package

16 Pin DIP

16 Pin

Shipping

SN74LS166N

SN74LS166D

2000 Units/Box

2500/Tape & Reel

Semiconductor Components Industries, LLC, 1999

Publication Order Number:

December, 1999 – Rev. 6

SN74LS166/D

12 3 4 5 6 7 8

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与SN74LS166相关器件

型号	品牌	获取价格	描述	数据表
SN74LS166A	TI	获取价格	PARALLEL-LOAD 8-BIT SHIFT REGISTERS
SN74LS166AD	TI	获取价格	PARALLEL-LOAD 8-BIT SHIFT REGISTERS
SN74LS166AD3	ROCHESTER	获取价格	Parallel In Serial Out
SN74LS166ADE4	TI	获取价格	PARALLEL-LOAD 8-BIT SHIFT REGISTERS
SN74LS166ADG4	TI	获取价格	Serial-out shift registers 16-SOIC 0 to 70
SN74LS166ADR	TI	获取价格	PARALLEL-LOAD 8-BIT SHIFT REGISTERS
SN74LS166ADRE4	TI	获取价格	PARALLEL-LOAD 8-BIT SHIFT REGISTERS
SN74LS166ADRG4	TI	获取价格	LS SERIES, 8-BIT RIGHT PARALLEL IN SERIAL OUT SHIFT REGISTER, TRUE OUTPUT, PDSO16, GREEN,
SN74LS166AFK	TI	获取价格	PARALLEL-LOAD 8-BIT SHIFT REGISTERS
SN74LS166AFN	TI	获取价格	LS SERIES, 8-BIT RIGHT PARALLEL IN SERIAL OUT SHIFT REGISTER, TRUE OUTPUT, PQCC20