Datasheet > 逻辑 > 计数器> SN74ALS163BDBRE4

SN74ALS163BDBRE4

更新时间： 2024-11-19 05:24:55

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
页数	文件大小	规格书
27页	689K
描述
SYNCHRONOUS 4-BIT DECADE AND BINARY COUNTERS

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SN74ALS163BDBRE4 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：	GREEN, PLASTIC, SSOP-16	针数：	16
Reach Compliance Code：	compliant	HTS代码：	8542.39.00.01
风险等级：	5.75	Is Samacsys：	N
其他特性：	TCO OUTPUT	计数方向：	UP
系列：	ALS	JESD-30 代码：	R-PDSO-G16
长度：	6.2 mm	负载/预设输入：	YES
逻辑集成电路类型：	BINARY COUNTER	最大频率@ Nom-Sup：	40000000 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：	SSOP	封装等效代码：	SOP16,.25
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, SHRINK PITCH
包装方法：	TAPE AND REEL	峰值回流温度（摄氏度）：	NOT SPECIFIED
电源：	5 V	最大电源电流（ICC）：	21 mA
传播延迟（tpd）：	20 ns	认证状态：	Not Qualified
座面最大高度：	2 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
端子形式：	GULL WING	端子节距：	0.65 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：	5.3 mm
最小 fmax：	40 MHz	Base Number Matches：	1

SN74ALS163BDBRE4 数据手册

SN54ALS161B, SN54ALS162B, SN54ALS163B, SN54AS161, SN54AS163

SN74ALS161B, SN74ALS163B, SN74AS161, SN74AS163

SYNCHRONOUS 4-BIT DECADE AND BINARY COUNTERS

SDAS276A – DECEMBER 1994 – REVISED JULY 2000

SN54ALS161B, SN54ALS162B, SN54ALS163B,

Internal Look-Ahead Circuitry for Fast

Counting

SN54AS161, SN54AS163 . . . J PACKAGE

SN74ALS161B, SN74AS161,

Carry Output for n-Bit Cascading

Synchronous Counting

Synchronously Programmable

SN74AS163 . . . D OR N PACKAGE

SN74ALS163B . . . D, DB, OR N PACKAGE

(TOP VIEW)

Package Options Include Plastic

CLR

CLK

RCO

Small-Outline (D) and Shrink Small-Outline

(DB) Packages, Ceramic Chip Carriers (FK),

Standard Plastic (N) and Ceramic (J) DIPs

description

ENT

ENP

GND

These synchronous, presettable, 4-bit decade

and binary counters feature an internal carry

look-ahead circuitry for application in high-speed

counting designs. The SN54ALS162B is a 4-bit

decade counter. The ’ALS161B, ’ALS163B,

’AS161, and ’AS163 devices are 4-bit binary

counters. Synchronous operation is provided by

having all flip-flops clocked simultaneously so that

the outputs change coincidentally with each other

when 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) edge of

the clock input waveform.

LOAD

SN54ALS161B, SN54ALS162B, SN54ALS163B,

SN54AS161, SN54AS163 . . . FK PACKAGE

(TOP VIEW)

20 19

9 10 11 12 13

These counters are fully programmable; they can

be preset to any number between 0 and 9 or 15.

Because presetting is synchronous, setting up a

low level at the load (LOAD) input disables the

counter and causes the outputs to agree with the

setup data after the next clock pulse, regardless

of the levels of the enable inputs.

NC – No internal connection

The clear function for the ’ALS161B and ’AS161 devices is asynchronous. A low level at the clear (CLR) input

sets all four of the flip-flop outputs low, regardless of the levels of the CLK, LOAD, or enable inputs. The clear

function for the SN54ALS162B, ’ALS163B, and ’AS163 devices is synchronous, and a low level at CLR sets

all four of the flip-flop outputs low after the next clock pulse, regardless of the levels of the enable inputs. This

synchronous clear allows the count length to be modified easily by decoding the Q outputs for the maximum

count desired. The active-low output of the gate used for decoding is connected to CLR to synchronously clear

the counter to 0000 (LLLL).

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

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

function. Both ENP and ENT must be high to count, and ENT is fed forward to enable RCO. RCO, thus enabled,

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.

On products compliant to MIL-PRF-38535, all parameters are tested

unless otherwise noted. On all other products, production

processing does not necessarily include testing of all parameters.

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.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7...27

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与SN74ALS163BDBRE4相关器件

型号	品牌	获取价格	描述	数据表
SN74ALS163BDBRG4	TI	获取价格	ALS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16, GREEN, PLASTIC, S
SN74ALS163BDE4	TI	获取价格	SYNCHRONOUS 4-BIT DECADE AND BINARY COUNTERS
SN74ALS163BDG4	TI	获取价格	SYNCHRONOUS 4-BIT DECADE AND BINARY COUNTERS
SN74ALS163BDR	TI	获取价格	SYNCHRONOUS 4-BIT DECADE AND BINARY COUNTERS
SN74ALS163BDRE4	TI	获取价格	SYNCHRONOUS 4-BIT DECADE AND BINARY COUNTERS
SN74ALS163BDRG4	TI	获取价格	SYNCHRONOUS 4-BIT DECADE AND BINARY COUNTERS
SN74ALS163BN	TI	获取价格	SYNCHRONOUS 4-BIT DECADE AND BINARY COUNTERS
SN74ALS163BN3	TI	获取价格	SYNCHRONOUS 4-BIT DECADE AND BINARY COUNTERS
SN74ALS163BNE4	TI	获取价格	SYNCHRONOUS 4-BIT DECADE AND BINARY COUNTERS
SN74ALS163BNSR	TI	获取价格	SYNCHRONOUS 4-BIT DECADE AND BINARY COUNTERS

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