Datasheet > SN74HC193QPWRQ1

SN74HC193QPWRQ1

更新时间： 2024-02-10 22:48:28

品牌	Logo	应用领域
德州仪器 - TI		计数器时钟
页数	文件大小	规格书
13页	233K
描述
4-BIT SYNCHRONOUS UP/DOWN COUNTER (DUAL CLOCK WITH CLEAR)

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SN74HC193QPWRQ1 技术参数

生命周期：	Contact Manufacturer	包装说明：	TSSOP,
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.56	计数方向：	BIDIRECTIONAL
系列：	HC/UH	JESD-30 代码：	R-PDSO-G16
长度：	5 mm	负载/预设输入：	YES
逻辑集成电路类型：	BINARY COUNTER	工作模式：	SYNCHRONOUS
位数：	4	功能数量：	1
端子数量：	16	最高工作温度：	125 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	TSSOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	传播延迟（tpd）：	375 ns
座面最大高度：	1.2 mm	最大供电电压 (Vsup)：	6 V
最小供电电压 (Vsup)：	2 V	标称供电电压 (Vsup)：	5 V
表面贴装：	YES	技术：	CMOS
温度等级：	AUTOMOTIVE	端子形式：	GULL WING
端子节距：	0.65 mm	端子位置：	DUAL
触发器类型：	POSITIVE EDGE	宽度：	4.4 mm
最小 fmax：	16 MHz	Base Number Matches：	1

SN74HC193QPWRQ1 数据手册

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SCLS594A − NOVEMBER 2004 − REVISED APRIL 2008

Qualified for Automotive Applications

Wide Operating Voltage Range of 2 V to 6 V

Outputs Can Drive Up To 10 LSTTL Loads

Fully Synchronous in Count Modes

Parallel Asynchronous Load for Modulo-N

Count Lengths

Asynchronous Clear

Low Power Consumption, 80-µA Max I

Typical t = 20 ns

4-mA Output Drive at 5 V

PW PACKAGE

(TOP VIEW)

Low Input Current of 1 µA Max

Look-Ahead Circuitry Enhances Cascaded

Counters

CLR

description/ordering information

DOWN

12 CO

The SN74HC193 device is a 4-bit synchronous,

reversible, up/down binary counter. Synchronous

operation is provided by having all flip-flops clocked

simultaneously so that the outputs change

simultaneously with each other when dictated by the

steering logic. This mode of operation eliminates the

output counting spikes normally associated with

asynchronous (ripple-clock) counters.

LOAD

GND

The outputs of the four flip-flops are triggered on a low-to-high-level transition of either count (clock) input (UP

or DOWN). The direction of counting is determined by which count input is pulsed while the other count input

is high.

All four counters are fully programmable; that is, each output may be preset to either level by placing a low on

the load (LOAD) input and entering the desired data at the data inputs. The output changes to agree with the

data inputs independently of the count pulses. This feature allows the counters to be used as modulo-N dividers

simply by modifying the count length with the preset inputs.

A clear (CLR) input has been provided that forces all outputs to the low level when a high level is applied. The

clear function is independent of the count and LOAD inputs.

This counter was designed to be cascaded without the need for external circuitry. The borrow (BO) output

produces a low-level pulse while the count is zero (all outputs low) and DOWN is low. Similarly, the carry (CO)

output produces a low-level pulse while the count is maximum (9 or 15), and UP is low. The counter then can

be cascaded easily by feeding BO and CO to DOWN and UP, respectively, of the succeeding counter.

{

ORDERING INFORMATION

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

‡

PACKAGE

−40°C to 125°C

−40°C to 85°C

TSSOP − PW

Reel of 2000

SN74HC193QPWRQ1

SN74HC193IPWRQ1

HC193Q

HC193I

†

For the most current package and ordering information, see the Package Option Addendum at the end of

this document, or see the TI web site at http://www.ti.com.

Package drawings, thermal data, and symbolization are available at http://www.ti.com/packaging.

‡

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.

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POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7...13

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与SN74HC193QPWRQ1相关器件

型号	品牌	描述	获取价格	数据表
SN74HC194DW	ROCHESTER	Parallel In Parallel Out, HC/UH Series, 4-Bit, Bidirectional, True Output, CMOS, PDSO16	获取价格
SN74HC194DW-00	TI	HC/UH SERIES, 4-BIT BIDIRECTIONAL PARALLEL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, PD	获取价格
SN74HC194DW-00R	TI	HC/UH SERIES, 4-BIT BIDIRECTIONAL PARALLEL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, PD	获取价格
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SN74HC194DWR	TI	HC/UH SERIES, 4-BIT BIDIRECTIONAL PARALLEL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, PD	获取价格
SN74HC194FHP4	ROCHESTER	Parallel In Parallel Out	获取价格

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