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CD74HC192NSR.A中文资料

厂家型号

CD74HC192NSR.A

文件大小

759.25Kbytes

页面数量

27

功能描述

High-Speed CMOS Logic Presettable Synchronous 4-Bit Up/Down Counters

数据手册

下载地址一下载地址二到原厂下载

简称

TI2德州仪器

生产厂商

Texas Instruments

中文名称

美国德州仪器公司官网

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CD74HC192NSR.A数据手册规格书PDF详情

Features

• Synchronous Counting and Asynchronous

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• Two Outputs for N-Bit Cascading

• Look-Ahead Carry for High-Speed Counting

• Fanout (Over Temperature Range)

- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads

- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads

• Wide Operating Temperature Range . . . -55oC to 125oC

• Balanced Propagation Delay and Transition Times

• Significant Power Reduction Compared to LSTTL

Logic ICs

• HC Types

- 2V to 6V Operation

- High Noise Immunity: NIL = 30%, NIH = 30% of VCC

at VCC = 5V

• HCT Types

- 4.5V to 5.5V Operation

- Direct LSTTL Input Logic Compatibility,

VIL= 0.8V (Max), VIH = 2V (Min)

- CMOS Input Compatibility, Il ≤ 1μA at VOL, VOH

Description

The ’HC192, ’HC193 and ’HCT193 are asynchronously

presettable BCD Decade and Binary Up/Down synchronous

counters, respectively.

Presetting the counter to the number on the preset data inputs

(P0-P3) is accomplished by a LOW asynchronous parallel

load input (PL). The counter is incremented on the low-to-high

transition of the Clock-Up input (and a high level on the Clock-

Down input) and decremented on the low to high transition of

the Clock-Down input (and a high level on the Clock-up input).

A high level on the MR input overrides any other input to clear

the counter to its zero state. The Terminal Count up (carry)

goes low half a clock period before the zero count is reached

and returns to a high level at the zero count. The Terminal

Count Down (borrow) in the count down mode likewise goes

low half a clock period before the maximum count (9 in the

192 and 15 in the 193) and returns to high at the maximum

count. Cascading is effected by connecting the carry and

borrow outputs of a less significant counter to the Clock-Up

and Clock-Down inputs, respectively, of the next most

significant counter.

If a decade counter is preset to an illegal state or assumes an

illegal state when power is applied, it will return to the normal

sequence in one count as shown in state diagram.

更新时间:2025-7-23 10:04:00
供应商 型号 品牌 批号 封装 库存 备注 价格
Texas Instruments
24+
16-SO
56200
一级代理/放心采购
TI
20+
SOP-16
2000
就找我吧!--邀您体验愉快问购元件!
Texas Instruments(德州仪器)
22+
NA
500000
万三科技,秉承原装,购芯无忧
TI
22+
16SO
9000
原厂渠道,现货配单
TI
23+
16SO
9000
原装正品,支持实单
TI
23+
16-SO
3115
正品原装货价格低
TI(德州仪器)
24+
SOP16208mil
7350
现货供应,当天可交货!免费送样,原厂技术支持!!!
Texas Instruments
23+
16-SO
7300
专注配单,只做原装进口现货
Texas Instruments
23+
16-SO
7300
专注配单,只做原装进口现货
TI(德州仪器)
24+
SOP16208mil
2886
原装现货,免费供样,技术支持,原厂对接

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Texas Instruments 美国德州仪器公司

中文资料: 20050条

德州仪器(Texas Instruments),简称TI,是全球领先的半导体公司,为现实世界的信号处理提供创新的数字信号处理(DSP)及模拟器件技术。除半导体业务外,还提供包括传感与控制、教育产品和数字光源处理解决方案。TI总部位于美国德克萨斯州的达拉斯,并在25多个国家设有制造、设计或销售机构。德州仪器是推动互联网时代不断发展的半导体引擎,作为实时技术的领导者,TI正在快速发展,在无线与宽带接入等大型市场及数码相机和数字音频等新兴市场方面,凭借性能卓越的半导体解决方案不断推动着互联网时代的前进步伐。TI预想未来世界的方方面面都渗透着TI产品的点点滴滴,每个电话、每次上网、拍的每张照片、听的每