參數(shù)資料
型號(hào)： M74HC191M1R
廠商： STMICROELECTRONICS
元件分類： 計(jì)數(shù)器
英文描述： HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16
封裝： SO-16
文件頁(yè)數(shù)： 1/14頁(yè)
文件大?。?/td> 564K
代理商： M74HC191M1R
1/14
August 2001
s
HIGH SPEED :
fMAX = 61 MHz (TYP.) at VCC = 6V
s
LOW POWER DISSIPATION:
ICC =4A(MAX.) at TA=25°C
s
HIGH NOISE IMMUNITY:
VNIH = VNIL = 28 % VCC (MIN.)
s
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 4mA (MIN)
s
BALANCED PROPAGATION DELAYS:
tPLH tPHL
s
WIDE OPERATING VOLTAGE RANGE:
VCC (OPR) = 2V to 6V
s
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 191
DESCRIPTION
The M74HC191 is an high speed CMOS 4-BIT
SYNCHRONOUS
UP/DOWN
COUNTER
fabricated with silicon gate C2MOS technology.
State changes of the counter are synchronous
with the LOW-to-HIGH transition of the Clock
Pulse Input.
An asynchronous parallel load input overrides
counting and loads the data present on the DATA
inputs into the flip-flops, which makes it possible to
use the circuits as programmable counters. A
count enable input serves as the carry/borrow
input in multi-stage counters. Control input, Down/
Up, determines whether a circuit counts up or
down. A MAX/MIN output and a Ripple Clock
output provide overflow/underflow indication and
make possible a variety of methods for generating
carry/borrow
signals
in
multi-stage
counter
applications.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
M74HC191
4 BIT SYNCHRONOUS UP/DOWN COUNTERS
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAGE
TUBE
T & R
DIP
M74HC191B1R
SOP
M74HC191M1R
M74HC191RM13TR
TSSOP
M74HC191TTR
TSSOP
DIP
SOP
相關(guān)PDF資料
PDF描述
M74HC191C1R HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PQCC20
M54HC190F1R HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL DECADE COUNTER, CDIP16
M54HC191F1R HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, CDIP16
M74HC192RM13TR HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL DECADE COUNTER, PDSO16
M74HC193M1R HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M74HC191RM13TR 功能描述:計(jì)數(shù)器移位寄存器 Sync Up/Dn Counter RoHS:否 制造商:Texas Instruments 計(jì)數(shù)器類型: 計(jì)數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數(shù)量:1 輸出類型:Open Drain 傳播延遲時(shí)間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel
M74HC191TTR 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 BIT SYNCHRONOUS UP/DOWN COUNTERS
M74HC192 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:SYNCHRONOUS UP/DOWN DECADE COUNTER
M74HC192B1R 功能描述:計(jì)數(shù)器 IC Sync Up/Dn Dec Cntr RoHS:否 制造商:NXP Semiconductors 計(jì)數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計(jì)數(shù)法: 計(jì)數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel
M74HC192C1R 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:SYNCHRONOUS UP/DOWN DECADE(,BINARY) COUNTER
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