Technical Note

BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series

2/40

www.rohm.com

2011.02 - Rev.F

© 2011 ROHM Co., Ltd. All rights reserved.

Serial EEPROM Series

High Reliability Series

EEPROMs Microwire BUS

BR93L□□-W Series, 93A□□-WM Series

●

Description

BR93L□□-W Series, BR93A□□-WM Series are serial EEPROM of serial 3-line interface method

●

Features

1) 3-line communications of chip select, serial clock, serial data input / output (the case where input and output are shared)

2) Actions available at high speed 2MHz clock(2.5~5.5V)

3) Speed write available (write time 5ms max.）

4) Same package and pin layout from 1Kbit to 16Kbit

5) 1.8~5.5V (BR93L□□-W Series), 2.5～5.5V(BR93A□□-WM Series) single power source action

6) Highly reliable connection by Au pad and Au wire

7) Address auto increment function at read action

8) Write mistake prevention function

Write prohibition at power on

Write prohibition by command code

Write mistake prevention function at low voltage

9) Program cycle auto delete and auto end function

10) Program condition display by READY / BUSY

11) Low current consumption

At write action (at 5V) : 1.2mA (Typ.)

At read action (at 5V) : 0.3mA (Typ.)

At standby action (at 5V) : 0.1μA (Typ.)(CMOS input)

13) Compact package SOP8/SOP-J8/SSOP-B8/TSSOP-B8/MSOP8/TSSOP-B8J

*1

14) Data retention for 40 years

15) Data rewrite up to 1,000,000 times

16) Data at shipment all addresses FFFFh

*1 Only SOP8, SOP-J8, MSOP8 for BR93A□□-WM

●

BR93L, BR93A Series

Capacity

Bit format

Type

Power source

voltage

SOP8

SOP-J8

SSOP-B8

TSSOP-B8

MSOP8 TSSOP-B8J

Package type

F

RF

FJ

RFJ

FV

RFV

FVT RFVT

RFVM

RFVJ

1Kbit

64×16

BR93L46-W

1.8～5.5V

●

●

●

●

●

●

●

●

●

●

2Kbit

128×16

BR93L56-W

1.8～5.5V

●

●

●

●

●

●

●

●

●

●

4Kbit

256×16

BR93L66-W

1.8～5.5V

●

●

●

●

●

●

●

●

●

●

8Kbit

512×16

BR93L76-W

1.8～5.5V

●

●

●

●

●

●

●

●

16Kbit

1K×16

BR93L86-W

1.8～5.5V

●

●

●

●

●

●

●

●

1Kbit

64×16

BR93A46-WM

2.5～5.5V

●

●

●

●

2Kbit

128×16

BR93A56-WM

2.5～5.5V

●

●

●

●

●

4Kbit

256×16

BR93A66-WM

2.5～5.5V

●

●

●

●

●

8Kbit

512×16

BR93A76-WM

2.5～5.5V

●

●

●

●

16Kbit

1K×16

BR93A86-WM

2.5～5.5V

●

●

●

●

●