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BYD

BM810 Datasheet Preview

BM810 Datasheet

Reset IC

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BYD Microelectronics Co., Ltd.
BM809/BM810 Series
Reset IC
Description
Features
The BM809/BM810 are microprocessor resets used to
monitor supply voltages in microprocessor and other logic
systems. The reset signal is asserted when the supply voltage
drops below the preset threshold, and the signal is released in a
set time after the supply voltage has risen above the preset
threshold
The BM809 has an active-LOW reset output while the
BM810 has an active-HIGH reset output. The low supply current
of typically 1.79uA makes the BM809/BM810 ideal for use in
portable, battery operated equipment. They are available in the
SOT-23 or SOT-23-3L package.
z Monitors 5.0V, 3.3V and 3V supplies
z 350ms reset delay time
z Active-LOW RESET output (BM809)
z Active-HIGH RESET output (BM810)
z Power supply transient immunity
z Available in small 3-pin SOT-23 or SOT-23-3L
package
z No external components needs
z Specified over full temperature range -40to +85
Applications
z Embedded controllers
z Battery operated system
z Wireless communication
z PDAs and handheld equipment
Typical Application Circuits
datasheet
Figure 1. BM809/810 simplified system diagram
ES-BYD-WDZCE01D-066 Rev.A 0
1/10




BYD

BM810 Datasheet Preview

BM810 Datasheet

Reset IC

No Preview Available !

BYD Microelectronics Co., Ltd.
Pin Description
BM809 pin description
pin symbol
description
P1 GND
Device ground
P2 RESET Active-LOW reset signal
P3 VCC
Supply voltage input
BM810 pin description
pin symbol
description
P1 GND
Device ground
P2 RESET Active-HIGH reset signal
P3 VCC
Supply voltage input
BM809/BM810 Series
Package Type
Figure 2. SOT-23
Figure 3. SOT-23-3L
Selection Guide
z Type number
BM809XXXX-XX
BM810XXXX-XX
z Type number option
The first X stands for editions.
The second, third and fourth Xs stand for preset thresholds.
The fifth and sixth Xs stand for package informations.
z Type of the productions
Part number
BM809A463
Reset threshold
voltageTYP
4.63 V
Sign
RLH
Part number
BM810A463
BM809A438
4.38 V
RLG BM810A438
BM809A400
4.00 V
RLF BM810A400
BM809A308
3.08 V
RLE BM810A308
Reset threshold
voltageTYP
4.63 V
4.38 V
4.00 V
3.08 V
datasheet
ES-BYD-WDZCE01D-066 Rev.A 0
Sign
RHH
RHG
RHF
RHE
2/10


Part Number BM810
Description Reset IC
Maker BYD
Total Page 10 Pages
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