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SN74ALS193N

更新时间： 2024-11-27 13:01:59
品牌 Logo 应用领域
德州仪器 - TI 计数器触发器逻辑集成电路光电二极管输出元件PC时钟
页数 文件大小 规格书
8页 132K
描述
ALS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDIP16

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SN74ALS193N 技术参数

是否Rohs认证：不符合生命周期：Obsolete
Reach Compliance Code：not_compliantHTS代码：8542.39.00.01
风险等级：5.19Is Samacsys：N
其他特性：TCO UP AND TCO DOWN OUTPUTS; SEPARATE UP/DOWN CLOCK计数方向：BIDIRECTIONAL
系列：ALSJESD-30 代码：R-PDIP-T16
长度：19.305 mm负载电容（CL）：50 pF
负载/预设输入：YES逻辑集成电路类型：BINARY COUNTER
最大频率@ Nom-Sup：30000000 Hz最大I（ol）：0.008 A
工作模式：SYNCHRONOUS位数：4
功能数量：1端子数量：16
最高工作温度：70 °C最低工作温度：
封装主体材料：PLASTIC/EPOXY封装代码：DIP
封装等效代码：DIP16,.3封装形状：RECTANGULAR
封装形式：IN-LINE峰值回流温度（摄氏度）：NOT SPECIFIED
电源：5 V最大电源电流（ICC）：22 mA
传播延迟（tpd）：17 ns认证状态：Not Qualified
座面最大高度：5.08 mm子类别：Counters
最大供电电压 (Vsup)：5.5 V最小供电电压 (Vsup)：4.5 V
标称供电电压 (Vsup)：5 V表面贴装：NO
技术：TTL温度等级：COMMERCIAL
端子形式：THROUGH-HOLE端子节距：2.54 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
触发器类型：POSITIVE EDGE宽度：7.62 mm
最小 fmax：30 MHzBase Number Matches：1

SN74ALS193N 数据手册

 浏览型号SN74ALS193N的Datasheet PDF文件第2页浏览型号SN74ALS193N的Datasheet PDF文件第3页浏览型号SN74ALS193N的Datasheet PDF文件第4页浏览型号SN74ALS193N的Datasheet PDF文件第5页浏览型号SN74ALS193N的Datasheet PDF文件第6页浏览型号SN74ALS193N的Datasheet PDF文件第7页 
SN54ALS193A, SN74ALS193A  
SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS  
WITH DUAL CLOCK AND CLEAR  
SDAS211C – DECEMBER 1982 – REVISED JULY 1996  
SN54ALS193A . . . J PACKAGE  
SN74ALS193A . . . D OR N PACKAGE  
(TOP VIEW)  
Look-Ahead Circuitry Enhances Cascaded  
Counters  
Fully Synchronous in Count Modes  
Parallel Asynchronous Load for Modulo-N  
Count Lengths  
B
V
A
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
CC  
Q
Q
B
A
CLR  
BO  
CO  
LOAD  
C
Asynchronous Clear  
DOWN  
UP  
Package Options Include Plastic  
Small-Outline (D) Packages, Ceramic Chip  
Carriers (FK), and Standard Plastic (N) and  
Ceramic (J) 300-mil DIPs  
Q
C
Q
D
GND  
D
description  
SN54ALS193A . . . FK PACKAGE  
(TOP VIEW)  
The ’ALS193A are synchronous, reversible, 4-bit  
up/down binary counters. Synchronous counting  
operation is provided by having all flip-flops  
clocked simultaneously so that the outputs  
change coincident with each other when  
instructed by the steering logic. This mode of  
operation eliminates the output counting spikes  
normally associated with asynchronous (ripple-  
clock) counters.  
3
2
1
20 19  
18  
CLR  
BO  
Q
4
5
6
7
8
A
DOWN  
NC  
17  
16  
15  
14  
NC  
CO  
UP  
LOAD  
Q
C
9 10 11 12 13  
The outputs of the four flip-flops are triggered on  
a low-to-high-level transition of either count/clock  
(UP or DOWN) input. The direction of the count is  
determined by which count input is pulsed while  
the other count input is high.  
NC – No internal connection  
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  
by simply modifying the count length with the preset inputs.  
A high level applied to the clear (CLR) input forces all outputs to the low level. The clear function is independent  
of the count and LOAD inputs. The UP, DOWN, and LOAD inputs are buffered to lower the drive requirement,  
which significantly reduces the loading on, or current required by, clock drivers, etc., for long parallel words.  
These counters are 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 Q outputs low) and the DOWN input is low. Similarily, the  
carry (CO) output produces a low-level pulse while the count is 9 or 15 (all Q outputs high) and the UP input  
is low. The counters can then be easily cascaded by feeding BO and CO to the count-down and count-up inputs,  
respectively, of the succeeding counter.  
The SN54ALS193A is characterized for operation over the full military temperature range of –55°C to 125°C.  
The SN74ALS193A is characterized for operation from 0°C to 70°C.  
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.  
Copyright 1996, Texas Instruments Incorporated  
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.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
12345678

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SN74ALS193N 替代型号

型号 品牌 替代类型 描述 数据表
SN74ALS193AN TI

功能相似

 SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS WITH DUAL CLOCK AND CLEAR
SN74ALS191AN TI

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 SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS

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