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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 monostable operation.
BU4528B Maximum Ratings
Parameter
Symbol
Limits
Unit
Power supply voltage
VDD
0.3 ~ + 18
V
Power dissipation
Pd
1000 (DIP), 500 (SOP)
mW
Operating temperature
Topr
40 ~ + 85
Storage temperature
Tstg
55 ~ + 150
Input voltage
VIN
0.3 ~ VDD + 0.3
V
BU4528B 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.
BU4528B Connection Diagram
BU4528BF General Description
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 monostable operation.
BU4528BF Maximum Ratings
Parameter
Symbol
Limits
Unit
Power supply voltage
VDD
0.3 ~ + 18
V
Power dissipation
Pd
1000 (DIP), 500 (SOP)
mW
Operating temperature
Topr
40 ~ + 85
Storage temperature
Tstg
55 ~ + 150
Input voltage
VIN
0.3 ~ VDD + 0.3
V
BU4528BF 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.