Datasheet > TC74HC697AP_07

TC74HC697AP_07

更新时间： 2024-09-13 05:04:07

品牌	Logo	应用领域
东芝 - TOSHIBA		计数器
页数	文件大小	规格书
13页	596K
描述
Synchronous Presettable 4-Bit Binary Up/Down Counter with Output Register

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中文翻译

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TC74HC697AP_07 数据手册

TC74HC697AP/AF

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

TC74HC697AP,TC74HC697AF

Synchronous Presettable 4-Bit Binary Up/Down Counter with Output Register (multiplexed

3-state outputs)

TC74HC697AP

The TC74HC697A is high speed CMOS UP/DOWN

COUNTERS fabricated with silicon gate C²MOS technology.

It achieve the high speed operation similar to equivalent

LSTTL while maintaining the CMOS low power dissipation.

It counts on the rising edge of the Counter Clock (CCK) input

when “counter mode” is selected. If the up/down ( U/D ) input is

held high, the internal counter counts up. Conversely, if U/D is

held low, it counts down.

The internal counters outputs are latched into the output

registers on the rising edge of the Register Clock (RCK) input.

The outputs (QA~QD) are selected as either internal counter or

registered outputs by the output select ( R/C ) input. When high,

the outputs are counter outputs and when low, they are

registered outputs.

TC74HC697AF

Two enable ( ENP , ENT ) inputs and a carry ( RCO ) output

are provided to enable cascading of the counters.

This facilitates easy implementation of n-bit counters without

using external gates.

All inputs are equipped with protection circuits against static

discharge or transient excess voltage.

Weight

DlP20-P-300-2.54A

SOP20-P-300-1.27A

: 1.30 g (typ.)

: 0.22 g (typ.)

Features

•

High speed: f

= 38 MHz (typ.) at V

= 5 V

max

Low power dissipation: I

= 4 μA (max) at Ta = 25°C

High noise immunity: V

= V

= 28% V

(min)

NIH

NIL

Outputs drive capability: 15 LSTTL loads for QA~QD

10 LSTTL loads for RCO

•

Symmetrical output impedance:

|I | = I

= 6 mA (min) for QA~QD

|I | = I

= 4 mA (min) for RCO

∼

−

pHL

(opr) = 2~6 V

•

Balanced propagation delays: t

pLH

Wide operating voltage range: V

Pin and function compatible with 74LS697

2007-10-01

12 3 4 5 6 7...13

中文翻译

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与TC74HC697AP_07相关器件

型号	品牌	获取价格	描述	数据表
TC74HC698AF-EL	TOSHIBA	获取价格	IC HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL DECADE COUNTER, PDSO20, 0
TC74HC698AF-TP2	TOSHIBA	获取价格	IC HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL DECADE COUNTER, PDSO20, 0
TC74HC698AP	TOSHIBA	获取价格	IC HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL DECADE COUNTER, PDIP20, 0
TC74HC699AF-TP1	TOSHIBA	获取价格	IC HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO20, 0
TC74HC699AF-TP2	TOSHIBA	获取价格	IC HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO20, 0
TC74HC699AP	TOSHIBA	获取价格	暂无描述
TC74HC699P	TOSHIBA	获取价格	IC HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDIP20, 0
TC74HC7240AF	TOSHIBA	获取价格	OCTAL BUS BUFFER (WITH SCHMITT TRIGGER INPUTS)
TC74HC7240AF(EL)	TOSHIBA	获取价格	IC HC/UH SERIES, DUAL 4-BIT DRIVER, INVERTED OUTPUT, PDSO20, 0.300 INCH, PLASTIC, SOIC-20,
TC74HC7240AF(EL,F)	TOSHIBA	获取价格	TC74HC7240AF(EL,F)

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