8302501EA

更新时间： 2024-11-21 11:08:03

品牌	Logo	应用领域
德州仪器 - TI		逻辑集成电路触发器计数器
页数	文件大小	规格书
9页	150K
描述
同步 4 位加/减二进制计数器 \| J \| 16 \| -55 to 125

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8302501EA 技术参数

生命周期：	Active	零件包装代码：	DIP
包装说明：	DIP, DIP16,.3	针数：	16
Reach Compliance Code：	not_compliant	HTS代码：	8542.39.00.01
Factory Lead Time：	6 weeks	风险等级：	5.39
其他特性：	LG_MAX	计数方向：	BIDIRECTIONAL
系列：	ALS	JESD-30 代码：	R-GDIP-T16
长度：	19.56 mm	负载/预设输入：	YES
逻辑集成电路类型：	BINARY COUNTER	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：	125 °C	最低工作温度：	-55 °C
输出特性：	3-STATE	封装主体材料：	CERAMIC, GLASS-SEALED
封装代码：	DIP	封装等效代码：	DIP16,.3
封装形状：	RECTANGULAR	封装形式：	IN-LINE
包装方法：	TUBE	峰值回流温度（摄氏度）：	NOT SPECIFIED
电源：	5 V	最大电源电流（ICC）：	25 mA
Prop。Delay @ Nom-Sup：	20 ns	传播延迟（tpd）：	21 ns
认证状态：	Qualified	筛选级别：	MIL-STD-883
座面最大高度：	5.08 mm	子类别：	Counter
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：	MILITARY
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：	6.92 mm
最小 fmax：	25 MHz	Base Number Matches：	1

8302501EA 数据手册

SN54ALS169B, SN54AS169A, SN74ALS169B, SN74AS169A

SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS

SDAS125B – MARCH 1984 – REVISED DECEMBER 1994

SN54ALS169B, SN54AS169A . . . J PACKAGE

SN74ALS169B, SN74AS169A . . . D OR N PACKAGE

(TOP VIEW)

• Fully Synchronous Operation for Counting

and Programming

• Internal Carry Look-Ahead Circuitry for

Fast Counting

U/D

CLK

RCO

• Carry Output for n-Bit Cascading

• Fully Independent Clock Circuit

• Package Options Include Plastic

Small-Outline (D) Packages, Ceramic Chip

Carriers (FK), and Standard Plastic (N) and

Ceramic (J) 300-mil DIPs

ENT

ENP

GND

LOAD

description

SN54ALS169B, SN54AS169A . . . FK PACKAGE

(TOP VIEW)

These synchronous 4-bit up/down binary

presettable counters feature an internal carry

look-ahead circuitry for cascading in high-speed

counting applications. Synchronous operation is

provided by having all flip-flops clocked

simultaneously so that the outputs change

coincident with each other when so instructed by

the count-enable (ENP, ENT) inputs and internal

gating. This mode of operation eliminates the

output counting spikes normally associated with

asynchronous (ripple-clock) counters. A buffered

clock (CLK) input triggers the four flip-flops on the

rising(positive-going)edgeoftheclockwaveform.

20 19

9 10 11 12 13

These counters are fully programmable; that is,

they may be preset to either level. The load-input

circuitry allows loading with the carry-enable

output of cascaded counters. Because loading is

synchronous, setting up a low level at the load

(LOAD) input disables the counter and causes the

outputs to agree with the data inputs after the next

clock pulse.

NC – No internal connection

The internal carry look-ahead circuitry provides for cascading counters for n-bit synchronous application without

additional gating. ENP and ENT inputs and a ripple-carry output (RCO) are instrumental in accomplishing this

function. Both ENP and ENT must be low to count. The direction of the count is determined by the level of the

up/down (U/D) input. When U/D is high, the counter counts up; when low, it counts down. ENT is fed forward

to enable RCO. RCO, thus enabled, produces a low-level pulse while the count is zero (all inputs low) counting

down or maximum (15) counting up. This low-level overflow ripple-carry pulse can be used to enablesuccessive

cascaded stages. Transitions at ENP or ENT are allowed regardless of the level of the clock input. All inputs

are diode clamped to minimize transmission-line effects, thereby simplifying system design.

These counters feature a fully independent clock circuit. Changes at control inputs (ENP, ENT, LOAD, or U/D)

that modify the operating mode have no effect on the contents of the counter until clocking occurs. The function

of the counter (whether enabled, disabled, loading, or counting) is dictated solely by the conditions meeting the

stable setup and hold times.

The SN54ALS169B and SN54AS169A are characterized for operation over the full military temperature range

of –55°C to 125°C. The SN74ALS169B and SN74AS169A are characterized for operation from 0°C to 70°C.

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.

2–1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7...9

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8302501EA 替代型号

型号	品牌	替代类型	描述	数据表
M38510/38003BEA	TI	完全替代	同步 4 位加/减二进制计数器 \| J \| 16 \| -55 to 125
SNJ54ALS169BJ	TI	完全替代	SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS

与8302501EA相关器件

型号	品牌	获取价格	描述	数据表
8302501EX	ETC	获取价格	Synchronous Up/Down Counter
8302501FA	ETC	获取价格	Synchronous Up/Down Counter
8302501FX	ETC	获取价格	Synchronous Up/Down Counter
83025022A	TI	获取价格	SYNCHRONOUS 4-BIT UP/DOWN DECADE AND BINARY COUNTERS WITH 3-STATE OUTPUTS
83025022X	ETC	获取价格	Synchronous Up/Down Counter
8302502RA	TI	获取价格	SYNCHRONOUS 4-BIT UP/DOWN DECADE AND BINARY COUNTERS WITH 3-STATE OUTPUTS
8302502RX	ETC	获取价格	Synchronous Up/Down Counter
8302502SA	TI	获取价格	SYNCHRONOUS 4-BIT UP/DOWN DECADE AND BINARY COUNTERS WITH 3-STATE OUTPUTS
8302502SX	ETC	获取价格	Synchronous Up/Down Counter
83026AIL	ICSI	获取价格	LOW SKEW, 1-TO-2 DIFFERENTIAL-TO-LVCMOS/LVTTL FANOUT BUFFER

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