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SN74ALS193ADE4 PDF预览

SN74ALS193ADE4

更新时间： 2024-11-24 15:52:07
品牌 Logo 应用领域
德州仪器 - TI 光电二极管输出元件逻辑集成电路触发器
页数 文件大小 规格书
19页 849K
描述
ALS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16, GREEN, PLASTIC, MS-012AC, SOIC-16

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SN74ALS193ADE4 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：SOIC
包装说明：SOP, SOP16,.25针数：16
Reach Compliance Code：unknownHTS代码：8542.39.00.01
风险等级：5.38其他特性：TCO UP AND TCO DOWN OUTPUTS; SEPARATE UP/DOWN CLOCK
计数方向：BIDIRECTIONAL系列：ALS
JESD-30 代码：R-PDSO-G16JESD-609代码：e4
长度：9.9 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湿度敏感等级：1
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：SOP封装等效代码：SOP16,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
包装方法：TUBE峰值回流温度（摄氏度）：260
电源：5 V最大电源电流（ICC）：22 mA
传播延迟（tpd）：19 ns认证状态：Not Qualified
座面最大高度：1.75 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：YES
技术：TTL温度等级：COMMERCIAL
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)端子形式：GULL WING
端子节距：1.27 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：3.9 mm最小 fmax：30 MHz
Base Number Matches：1

SN74ALS193ADE4 数据手册

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SDAS211C − DECEMBER 1982 − REVISED JULY 1996  
SN54ALS193A . . . J PACKAGE  
SN74ALS193A . . . D OR N PACKAGE  
(TOP VIEW)  
D
Look-Ahead Circuitry Enhances Cascaded  
Counters  
D
Fully Synchronous in Count Modes  
D
Parallel Asynchronous Load for Modulo-N  
Count Lengths  
B
V
A
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16  
15  
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12  
11  
10  
9
CC  
Q
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B
A
CLR  
BO  
CO  
LOAD  
C
D
D
Asynchronous Clear  
DOWN  
Package Options Include Plastic  
Small-Outline (D) Packages, Ceramic Chip  
Carriers (FK), and Standard Plastic (N) and  
Ceramic (J) 300-mil DIPs  
UP  
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
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5
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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.  
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Copyright 1996, Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443  
1234567...19

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