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參數資料
| 型號： | M74HC123B1R |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 諧振器 |
| 英文描述： | HC/UH SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 508K |
| 代理商： | M74HC123B1R |
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
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相關代理商/技術參數 |
參數描述 |
|---|---|
| M74HC123B1R | 制造商:STMicroelectronics 功能描述:IC 74HC CMOS 74HC123 DIP16 6V |
| M74HC123C1R | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR |
| M74HC123F1R | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR |
| M74HC123M1R | 功能描述:單穩態多諧振蕩器 Dual Multivibrator RoHS:否 制造商:Texas Instruments 每芯片元件:1 邏輯系列:LVC 邏輯類型:Monostable Multivibrator 封裝 / 箱體:SSOP-8 傳播延遲時間:18.6 ns 高電平輸出電流:- 32 mA 低電平輸出電流:32 mA 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
| M74HC123P | 制造商:Mitsubishi Electric 功能描述: |
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