BU4528BF Rohm, BU4528BF Datasheet

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BU4528BF

Manufacturer Part Number
BU4528BF
Description
Dual monostable multivibrator
Manufacturer
Rohm
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
BU4528BF
Manufacturer:
COMLINK
Quantity:
6 226
Part Number:
BU4528BF-E2
Manufacturer:
ROHM/罗姆
Quantity:
20 000
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.
1) Low power dissipation.
2) Wide range of operating power supply voltages.
3) High input impedance.
Features
Block diagram
Truth table
Dual monostable multivibrator
BU4528B / BU4528BF
Standard ICs
RESET
H
H
H
H
H
H
L
L, H,
INPUT
H
A
X
X
L
L
L, H,
B
H
H
X
X
L
Q
Not Triggered
Not Triggered
Not Triggered
Not Triggered
Not Triggered
L
RESET
OUTPUT
V
T
T
Q
Q
A
B
SS
11
21
1
1
1
1
1
1
2
3
4
5
6
7
8
Q
H
4) High fan-out.
5) Direct drive of 2 L-TTL inputs and 1 LS-TTL input.
Logic circuit diagram
16
15
14
13
12
11
10
9
V
T
T
RESET
A
B
Q
Q
DD
12
22
2
2
2
2
RESET
2
A
B
T
1
C
X
T
2
R
X
Q
Q
V
DD
1

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BU4528BF Summary of contents

Page 1

... 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. • ...

Page 2

... OL — — 0.05 — — – 0.16 — — – 0.4 — — – 1.2 — — 0.44 — — 1.1 — — 3.0 — — 20 — — 40 — — 80 BU4528B / BU4528BF Unit Unit Conditions V ( — — 15V ...

Page 3

... BU4528B / BU4528BF Conditions V ( — — 15pF 1000pF 10k 15pF 1000pF 10k 1000pF 10k 15pF ...

Page 4

... B 50% RESET t t PLH WOUT 50% 50 PHL Q 50 RESET P.G. P. Fig. 1 Switching time measurement circuit 50% 20ns 90% 50% 10 PLH f 90% 90% 50% 10% 10 PHL 90% 50% 50% 10% t WOUT Fig. 2 Switching time waveform BU4528B / BU4528BF 20ns 20ns 90% 10% 20ns 20ns 90% 10% 20ns PHL 50% PHL 50% 50 ...

Page 5

... SOP16 400 200 100 125 AMBIENT TEMPERATURE Fig. 4 Power dissipation vs. Ta • External dimensions (Units: mm) BU4528B 19.4 0 2.54 0.5 0.1 DIP16 – (Cx > 0. [0.2 + 0.1 ] · RxCx < Fig. 3 150 BU4528BF 7. BU4528B / BU4528BF 10.0 0 1.27 0.4 0.1 0.3Min. SOP16 0.15 5 ...

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