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参数资料
| 型号： | M74HC221RM13TR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 谐振器 |
| 英文描述： | HC/UH SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDSO16 |
| 封装： | SO-16 |
| 文件页数： | 1/14页 |
| 文件大小： | 371K |
| 代理商： | M74HC221RM13TR |
1/14
July 2001
s
HIGH SPEED :
tPD = 24 ns (TYP.) at VCC = 6V
s
LOW POWER DISSIPATION:
STAND BY STATE :
ICC=4A (MAX.) at TA=25°C
ACTIVE STATE :
ICC=700A (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 = 150 ns ~ 60 s OVER AT VCC = 4.5 V
s
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 221
DESCRIPTION
The
M74HC221
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).
Triggering on the B input occurs at a particular
voltage threshold and is not related to rise and fall
time of the applied pulse. The device may also be
trigger by using the CLR input (positive edge)
because
of
the
Schimtt-trigger
input;
after
triggering
the
output
maintains
the
MONOSTABLE
STATE
for
the
time
period
determined by the external resistor Rx and
capacitor Cx. 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
K
0.7
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
M74HC221
DUAL MONOSTABLE MULTIVIBRATOR
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAGE
TUBE
T & R
DIP
M74HC221B1R
SOP
M74HC221M1R
M74HC221RM13TR
TSSOP
M74HC221TTR
TSSOP
DIP
SOP
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M74HC221RM13TR | 制造商:STMicroelectronics 功能描述:MULTIVIBRATOR |
| M74HC221RM13TR-CUT TAPE | 制造商:ST 功能描述:74HC Series 6 V CMOS Dual Monostable Multivibrator Surface Mount - SOIC-16 |
| M74HC221TTR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:DUAL MONOSTABLE MULTIVIBRATOR |
| M74HC237 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:3 TO 8 LINE DECODER LATCH |
| M74HC237B1R | 功能描述:编码器、解码器、复用器和解复用器 3-to-8 Line Decoder RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
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