BA6129AF datasheet(7/9 Pages) ROHM

Part #	BA6129AF

Description	Reset IC with battery backup function

PDF	9 Pages

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Manufacturer	ROHM [Rohm]

Direct Link	http://www.rohm.com

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7 / 9 page

Memory ICs

BA6129AF / BA6162 / BA6162F

8765

–

Vcc

SRAM

0.01

µF

BATTERY

SRAM

CEB

SRAM

CPU

Reset

µF

VDD

Vref

10k

Ω

Fig. 3

•Application example

•Operation notes

(1) Power supply VCC

These ICs are designed to operate with at VCC = 5V,

but can also operate at VCC values of other than 5V.

However, the following conditions must be met:

(equation)

VS + VSH < VCC < VCCMax.

VCC – VBAT < 5V

(2) Battery voltage VBAT

These ICs are designed to operate with at VBAT = 3V,

but can also operate at VBAT values of other than 3V.

However, the following conditions must be met:

(equation)

VBAT < VB

VCC – VBAT < 5V

where) VS: detection voltage

VSH: detection hysteresis voltage

VB: switching voltage

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BA6129AF Datasheet(PDF) 7 Page - Rohm