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HCF40160 PDF预览

HCF40160

更新时间: 2024-11-25 23:54:55
品牌 Logo 应用领域
其他 - ETC 计数器
页数 文件大小 规格书
14页 287K
描述
SYNCHRONOUS PROGRAMMABLE 4-BIT COUNTERS

HCF40160 数据手册

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HCF40160B  
SYNCHRONOUS PROGRAMMABLE 4-BIT DECADE  
COUNTER WITH ASYNCHRONOUS CLEAR  
INTERNAL LOOK-AHEAD FOR FAST  
COUNTING  
CARRY OUTPUT FOR CASCADING  
SYNCHRONOUSLY PROGRAMMABLE  
LOW-POWER TTL COMPATIBILITY  
STANDARDIZED SYMMETRICAL OUTPUT  
CHARACTERISTICS  
DIP  
SOP  
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  
TUBE  
T & R  
I
DD  
A
100% TESTED FOR QUIESCENT CURRENT  
MEETS ALL REQUIREMENTS OF JEDEC  
JESD13B "STANDARD SPECIFICATIONS  
FOR DESCRIPTION OF B SERIES CMOS  
DEVICES"  
DIP  
HCF40160BEY  
HCF40160BM1  
SOP  
HCF40160M013TR  
ENABLE inputs. Two count-enable inputs and a  
carry output (COUT) are instrumental in  
accomplishing this function. The carry look-ahead  
circuitry provides for cascading counter for n-bit  
synchronous application without additional gating.  
Counting is enabled when both the PE and TE  
inputs are high. The TE input is fed forward to  
enable COUT. This enable output produces a  
DESCRIPTION  
HCF40160B is a monolithic integrated circuit  
fabricated in Metal Oxide Semiconductor  
technology available in DIP and SOP packages.  
HCF40160B is 4-bit synchronous programmable  
counters. The CLEAR function is asynchronous. A  
low level at the CLEAR input sets all four outputs  
low regardless of the state of the CLOCK, LOAD  
and ENABLE inputs. A low level at the LOAD  
inputs disables the counter and causes the output  
to agree with the set-up data after the following  
CLOCK pulse regardless of the condition of the  
positive  
output  
pulse  
with  
a
duration  
approximately equal to the positive portion of the  
Q1 output. This positive overflow carry pulse can  
be used to enable successive cascaded stages.  
Logic transitions at the PE and TE inputs may  
occur when the clock is either high or low.  
PIN CONNECTION  
September 2002  
1/14  

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