Datasheet > SN74F163AN3

SN74F163AN3

更新时间： 2024-09-16 04:51:15

品牌	Logo	应用领域
德州仪器 - TI		计数器
页数	文件大小	规格书
14页	373K
描述
SYNCHRONOUS 4-BIT BINARY COUNTER

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

SN74F163AN3 数据手册

SN74F163A

SYNCHRONOUS 4-BIT BINARY COUNTER

SDFS088A – MARCH 1987 – REVISED AUGUST 2001

D, DB, OR N PACKAGE

(TOP VIEW)

Internal Look-Ahead Circuitry for Fast

Counting

Carry Output for N-Bit Cascading

RCO

CLR

CLK

Fully Synchronous Operation for Counting

description

This synchronous, presettable, 4-bit binary

counter has internal carry look-ahead circuitry

for use in high-speed counting designs.

Synchronous operation is provided by having all

flip-flops clocked simultaneously so that the

outputs change coincident with each other when

ENT

ENP

GND

LOAD

so instructed by the count-enable (ENP, ENT) inputs and internal gating. This mode of operation eliminates the

output counting spikes that normally are associated with asynchronous (ripple-clock) counters. However,

counting spikes can occur on the ripple-carry (RCO) output. A buffered clock (CLK) input triggers the four

flip-flops on the rising (positive-going) edge of CLK.

This counter is fully programmable. That is, it can be preset to any number between 0 and 15. Because

presettingissynchronous, alowlogiclevelattheload(LOAD)inputdisablesthecounterandcausestheoutputs

to agree with the setup data after the next clock pulse, regardless of the levels of ENP and ENT.

Theclearfunctionissynchronous, andalowlogiclevelattheclear(CLR)inputsetsallfouroftheflip-flopoutputs

to low after the next low-to-high transition of the clock, regardless of the levels of ENP and ENT. This

synchronous clear allows the count length to be modified easily by decoding the Q outputs for the maximum

count desired. The active-low output of the gate used for decoding is connected to the clear input to

synchronously clear the counter to 0000 (LLLL).

The carry look-ahead circuitry provides for cascading counters for n-bit synchronous applications, without

additional gating. This function is implemented by the ENP and ENT inputs and an RCO output. Both ENP and

ENT must be high to count, and ENT is fed forward to enable RCO. RCO, thus enabled, produces a

high-logic-levelpulse while the count is 15 (HHHH). The high-logic-level overflow ripple-carry pulse can be used

to enable successive cascaded stages. Transitions at ENP or ENT are allowed, regardless of the level of CLK.

The SN74F163A features a fully independent clock circuit. Changes at ENP, ENT, or LOAD that modify the

operating mode have no effect on the contents of the counter until clocking occurs. The function of the counter

(whether enabled, disabled, loading, or counting) is dictated solely by the conditions meeting the setup and hold

times.

ORDERING INFORMATION

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

†

PACKAGE

PDIP – N

SOIC – D

SSOP – DB

Tube

SN74F163AN

SN74F163AD

SN74F163ADR

SN74F163ADBR

SN74F163AN

Tube

0°C to 70°C

F163A

Tape and reel

F163A

†

Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines

are available at www.ti.com/sc/package.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7...14

中文翻译

下载PDF

与SN74F163AN3相关器件

型号	品牌	获取价格	描述	数据表
SN74F163ANE4	TI	获取价格	SYNCHRONOUS 4-BIT BINARY COUNTER
SN74F163ANSR	TI	获取价格	SYNCHRONOUS 4-BIT BINARY COUNTER
SN74F163ANSRE4	TI	获取价格	SYNCHRONOUS 4-BIT BINARY COUNTER
SN74F163ANSRG4	TI	获取价格	F/FAST SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16, GREEN, PLASTIC
SN74F163ANSRG4	ROCHESTER	获取价格	Binary Counter, F/FAST Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction,
SN74F166D	TI	获取价格	IC F/FAST SERIES, 8-BIT RIGHT PARALLEL IN SERIAL OUT SHIFT REGISTER, TRUE OUTPUT, PDSO16,
SN74F166N	TI	获取价格	IC F/FAST SERIES, 8-BIT RIGHT PARALLEL IN SERIAL OUT SHIFT REGISTER, TRUE OUTPUT, PDIP16,
SN74F168	TI	获取价格	SYNCHRONOUS 4-BIT UP/DOWN DECADE COUNTER
SN74F168_08	TI	获取价格	SYNCHRONOUS 4-BIT UP/DOWN DECADE COUNTER
SN74F168D	TI	获取价格	Synchronous up/down decade counters 16-SOIC 0 to 70

与SN74F163AN3相关文章

摩尔斯微电子在美国约书亚树国家公园测试 Wi-Fi HaLow
2024-09-18

9
贸泽上架Tallysman TW5386智能GNSS天线
2024-09-18

7
SL74HC10N：高性能三输入与非门解析
2024-09-03

90
AIC1781A 电池充电控制器深度解析
2024-09-03

80

产品中心

服务支持

精选活动

关于我们

帮助中心

SN74F163AN3

SN74F163AN3 数据手册

与SN74F163AN3相关器件

与SN74F163AN3相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

SN74F163AN3

SN74F163AN3 数据手册

与SN74F163AN3相关器件

与SN74F163AN3相关文章

您还可以找

您在本页遇到什么问题？