BR25S128FVT-WTR datasheet(4/35 Pages) ROHM | SPI BUS EEPROM

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BR25S128FVT-WTR Datasheet(PDF) 4 Page - Rohm

Part #	BR25S128FVT-WTR

Description	SPI BUS EEPROM

Download	35 Pages

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Manufacturer	ROHM [Rohm]

Direct Link	http://www.rohm.com

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4 / 35 page

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Datasheet

4/31

BR25Sxxx-W Series

(32K 64K 128K 256K)

TSZ02201-0R2R0G100330-1-2

21.AUG.2012 Rev.001

©2012 ROHM Co., Ltd. All rights reserved.

TSZ22111･15･001

www.rohm.com

●Block Diagram

●Pin Configuration

●Pin Descriptions

Terminal

name

Input

/Output

Function

Vcc

-

Power source to be connected

GND

-

All input / output reference voltage, 0V

CSB

Input

Chip select input

SCK

Input

Serial clock input

SI

Input

Start bit, ope code, address, and serial data input

SO

Output

Serial data output

HOLDB

Input

Hold input

Command communications may be suspended

temporarily (HOLD status)

Input

Write protect input

Write command is prohibited

Write status register command is prohibited

*1 12bit: BR25S320-W

13bit: BR25S640-W

14bit: BR25S128-W

15bit: BR25S256-W

CSB

GND

INSTRUCTION DECODE

CONTROL CLOCK

GENERATION

VOLTAGE

DETECTION

WRITE

INHIBITION

HIGH VOLTAGE

GENERATOR

INSTRUCTION

REGISTER

32to256K

EEPROM

ADDRESS

REGISTER

DATA

REGISTER

ADDRESS

DECODER

READ/WRITE

AMP

8bit

STATUS REGISTER

1

2

SO

3

WP

4

8 Vcc

7 HOLDB

6 SCK

5 SI

12to 15bit *1

8bit

12to 15bit *1

(TOP VIEW)

Vcc

HOLDB SCK

SI

CSB

SO

WP

GND

BR25S320-W

BR25S640-W

BR25S128-W

BR25S256-W

WP

Similar Part No. - BR25S128FVT-WTR

Manufacturer	Part #	Datasheet	Description
Rohm	BR25S128FVT-W	600Kb / 19P	High speed clock action up to 20MHz(Max.), Wait function by HOLDB terminal.
Rohm	BR25S128FVT-WE2	600Kb / 19P	High Reliability Series Serial EEPROMs

Similar Description - BR25S128FVT-WTR

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