參數(shù)資料
型號(hào)： M74HC221A
廠商： 意法半導(dǎo)體
英文描述： 2.7V to 5.5V 10-Bit 8-channel Serial DAC 20-SOIC -40 to 85
中文描述： 雙單穩(wěn)態(tài)觸發(fā)器
文件頁數(shù)： 4/14頁
文件大小： 288K
代理商： M74HC221A
TRUTH TABLE
INPUTS
B
H
L
X
OUTPUTS
NOTE
A
CLR
H
H
H
H
Q
Q
OUTPUT ENABLE
INHIBIT
INHIBIT
OUTPUT ENABLE
OUTPUT ENABLE
INHIBIT
X
H
L
L
X
L (*)
L (*)
H (*)
H (*)
H
X
L
L
H
X:Don’tCare
(*):Except for monostble period
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
1, 9
SYMBOL
1A, 2A
NAME AND FUNCTION
Trigger Inputs (Negative
Edge Triggered)
Trigger Inputs (Positive
Edge Triggered)
Direct Reset LOW and
Trigger Action at Positive
Edge
Outputs (Active LOW)
External Resistor
Capacitor Connection
Outputs (Active HIGH)
External Capacitor
Connection
External Resistor
Capacitor Connection
Ground (0V)
Positive Supply Voltage
2, 10
1B, 2B
3, 11
1CLR,
2CLR
4, 12
7
1Q, 2Q
2R
EXT
/C
EXT
13, 5
14, 6
1Q, 2Q
1C
EXT
2C
EXT
1R
EXT
/C
EXT
15
8
GND
V
CC
16
IEC LOGIC SYMBOL
M54/M74HC221/221A
4/14
相關(guān)PDF資料
PDF描述
M74HC221AF1R 2.7V to 5.5V 10-Bit 8-channel Serial DAC 20-SOIC -40 to 85
M74HC221M1R DUAL MONOSTABLE MULTIVIBRATOR
M74HC221C1R DUAL MONOSTABLE MULTIVIBRATOR
M74HC221AM1R REC3-SRWZ_DRWZ/H* Series - Econoline Regulated DC-DC Converters; Input Voltage (Vdc): 24V; Output Voltage (Vdc): 05V; Power: 3W; 2kV, 4kVDC & 6kVDC Isolation; Industry Standard 3W DIP24 Package; Feedback Regulated Output; Continuous Short Circuit Protection; Wide Input 2:1 & 4:1; Medical Approvals (4kV/6kV Versions); EN and UL Certificates; 3 Pinout Options, 3 Case Styles; Control Pin Option; Efficiency to 86%
M74HC221AB1R DUAL MONOSTABLE MULTIVIBRATOR
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M74HC221AB1R 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DUAL MONOSTABLE MULTIVIBRATOR
M74HC221AC1R 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DUAL MONOSTABLE MULTIVIBRATOR
M74HC221AF1R 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DUAL MONOSTABLE MULTIVIBRATOR
M74HC221AM1R 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DUAL MONOSTABLE MULTIVIBRATOR
M74HC221B1 制造商:STMicroelectronics 功能描述:
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