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HCF4516B_02 PDF预览

HCF4516B_02

更新时间: 2024-11-24 04:42:59
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 计数器
页数 文件大小 规格书
11页 489K
描述
PRESETTABLE BINARY UP/DOWN COUNTER

HCF4516B_02 数据手册

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HCF4516B  
PRESETTABLE BINARY UP/DOWN COUNTER  
MEDIUM SPEED OPERATION :  
8 MHz (Typ.) at 10V  
SYNCHRONOUS INTERNAL CARRY  
PROPAGATION  
RESET AND PRESET CAPABILITY  
STANDARDIZED SYMMETRICAL OUTPUT  
CHARACTERISTICS  
DIP  
QUIESCENT CURRENT SPECIF. UP TO 20V  
5V, 10V AND 15V PARAMETRIC RATINGS  
INPUT LEAKAGE CURRENT  
ORDER CODES  
PACKAGE  
I = 100nA (MAX) AT V = 18V T = 25°C  
I
DD  
A
TUBE  
T & R  
100% TESTED FOR QUIESCENT CURRENT  
DIP  
HCF4516BEY  
MEETS ALL REQUIREMENTS OF JEDEC  
JESD13B "STANDARD SPECIFICATIONS  
FOR DESCRIPTION OF B SERIES CMOS  
DEVICES"  
level on the PRESET ENABLE line. Synchronous  
cascading is accomplished by connecting all clock  
inputs in parallel and connecting the CARRY OUT  
of a less significant stage to the CARRY IN of a  
more significant stage. HCF4516B can be  
cascaded in the ripple mode by connecting all  
clock inputs in parallel and connecting the CARRY  
OUT to the clock of the next stage. If the UP/  
DOWN input changes during a terminal count, the  
CARRY OUT must be gated with the clock, and  
the UP/DOWN input must change while the clock  
is high. This method provides a clean clock signal  
to the subsequent counting stage.  
DESCRIPTION  
HCF4516B is a monolithic integrated circuit  
fabricated in Metal Oxide Semiconductor  
technology available in DIP package.  
It is a PRESETTABLE BINARY UP/DOWN  
COUNTER, consists of four synchronously  
clocked D-type flip-flops (with a gating structure to  
provide T-type flip-flop capability) connected as a  
counter. This counter can be cleared by a high  
level on the RESET line, and can be preset to any  
binary number present on the jam inputs by a high  
PIN CONNECTION  
September 2002  
1/11  

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