參數(shù)資料
型號: M74HC123RM13TR
廠商: STMICROELECTRONICS
元件分類: 諧振器
英文描述: HC/UH SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDSO16
封裝: SO-16
文件頁數(shù): 1/12頁
文件大?。?/td> 508K
代理商: M74HC123RM13TR
1/12
July 2001
s
HIGH SPEED :
tPD = 23 ns (TYP.) at VCC = 6V
s
LOW POWER DISSIPATION:
STAND BY STATE :
ICC=4A (MAX.) at TA=25°C
ACTIVE STATE :
ICC=200A (MAX.) at VCC = 5V
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
WIDE OUTPUT PULSE WIDTH RANGE :
tWOUT = 120 ns ~ 60 s OVER AT VCC = 4.5 V
s
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 123
DESCRIPTION
The
M74HC123
is
an
high
speed
CMOS
MONOSTABLE MULTIVIBRATOR fabricated with
silicon gate C2MOS technology.
There are two trigger inputs, A INPUT (negative
edge) and B INPUT (positive edge). These inputs
are valid for slow rising/falling signals, (tr=tf=l sec).
The device may also be triggered by using the
CLR
input
(positive-edge)
because
of
the
Schmitt-trigger input; after triggering the output
maintains the MONOSTABLE state for the time
period determined by the external resistor Rx and
capacitor Cx. When Cx > 10nF and Rx > 10K
,
the output pulse width value is approsimatively
given by the formula : tW(OUT) = K Cx Rx.
(K
0.45).
Taking CLR low breaks this MONOSTABLE
STATE. If the next trigger pulse occurs during the
MONOSTABLE
period
it
makes
the
MONOSTABLE period longer. Limit for values of
Cx and Rx : Cx : NO LIMIT
Rx : Vcc < 3.0V 5K to 1M
Vcc > 3.0V 1K to 1M
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
M74HC123
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAGE
TUBE
T & R
DIP
M74HC123B1R
SOP
M74HC123M1R
M74HC123RM13TR
TSSOP
M74HC123TTR
TSSOP
DIP
SOP
相關PDF資料
PDF描述
M74HC123C1 HC/UH SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PQCC20
M74HC123B1N HC/UH SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDIP16
M74HC131C1R HC/UH SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PQCC20
M74HC131C1 HC/UH SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PQCC20
M74HC139M1 HC/UH SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16
相關代理商/技術參數(shù)
參數(shù)描述
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