参数资料
型号: 4528B
厂商: National Semiconductor Corporation
英文描述: Dual Monostable Multivibrator
中文描述: 双单稳态触发器
文件页数: 1/5页
文件大小: 62K
代理商: 4528B
1
Standard ICs
Dual monostable multivibrator
BU4528B / BU4528BF
The BU4528B and BU4528BF are monostable multivibrators with trigger and reset functions that can be activated.
Each chip has two built-in circuits.
Triggers can initiate both rising and falling in response to Input A and Input B. As the output monostable pulse width
is determined by the time constant of the external resistance (Rx) and the capacitor (Cx), a wide range of output
pulse widths can be set.
Setting the RESET input to "L" enables external asynchronous resetting and this RESET input can be utilized to
reduce the time from the trigger disable input or the power on until the BU4528B and BU4528BF are ready for mono-
stable operation.
Features
1) Low power dissipation.
2) Wide range of operating power supply voltages.
3) High input impedance.
4) High fan-out.
5) Direct drive of 2 L-TTL inputs and 1 LS-TTL input.
Block diagram
Truth table
RESET1
1
T11
VDD
T12
T22
RESET2
A2
B2
Q2
T21
A1
B1
Q1
VSS
16
15
14
13
12
11
10
9
2
3
4
5
6
7
8
Q1
Q2
INPUT
OUTPUT
RESET
A
B
Q
H
L
H
L
Not Triggered
H
Not Triggered
H
L, H,
H
Not Triggered
HL
L, H,
Not Triggered
LX
XL
H
X
Not Triggered
Logic circuit diagram
B
A
Q
CX
RX
VDD
T2
T1
RESET
相关PDF资料
PDF描述
4528B Dual Monostable Multivibrator
4528B Dual Monostable Multivibrator
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