Datasheet
Serial EEPROM Series for Automotive EEPROM
125 °C Operation SPI BUS EEPROM
for Automotive
BR25H128xxx-5AC Series
General Description
BR25H128xxx-5AC Series is a 128 Kbit serial EEPROM of
SPI BUS Interface.
Key Specifications
Supply Voltage:
1.7 V to 5.5 V
Ambient Operating Temperature: -40 °C to +125 °C
Clock Frequency:
Write Time:
20 MHz (Max)
3.5 ms (Max)
Features
AEC-Q100 Qualified(Note 1)
SPI BUS Mode (CPOL, CPHA) = (0, 0), (1, 1)
Page Size: 64 Byte
Write Cycles:
4 Million Times (Ta = 25 °C)
1.2 Million Times (Ta = 85 °C)
0.5 Million Times (Ta = 105 °C)
0.3 Million Times (Ta = 125 °C)
Bit Format: 16384 x 8 bit
64 Byte Write Lockable Identification Page (ID Page)
Address Auto Increment Function at Read Operation
Auto Erase and Auto End Function at Data Rewrite
Write Protect Block Setting by Software
Memory Array 1/4, 1/2, Whole
Data Retention:
100 Years (Ta = 25 °C)
60 Years (Ta = 105 °C)
50 Years (Ta = 125 °C)
HOLD Function by the HOLDB Pin
Prevention of Write Mistake
Write Prohibition at Power On
Write Prohibition by the WPB Pin
Write Prohibition Block Setting
Prevention of Write Mistake at Low Voltage
Packages
SOP8
W (Typ) x D (Typ) x H (Max)
5.0 mm x 6.2 mm x 1.71 mm
4.9 mm x 6.0 mm x 1.65 mm
3.0 mm x 6.4 mm x 1.2 mm
2.9 mm x 4.0 mm x 0.9 mm
2.0 mm x 3.0 mm x 0.6 mm
SOP-J8
TSSOP-B8
MSOP8
VSON008X2030
Data at Shipment
Memory Array: FFh
ID Page First 3 Addresses: 2Fh, 00h, 0Eh
Other Addresses: FFh
Status Register WPEN, BP1, BP0: 0, 0, 0
Lock Status
(Note 1) Grade 1
LS: 0
Applications
Airbag
ABS
ECU
SOP8
SOP-J8
MSOP8
Typical Application Circuit
VSON008X2030
VCC
0.1 μF
VCC
HOLDB
SCK
CSB
TSSOP-B8
Micro-
controller
SO
Micro-
controller
WPB
GND
Figure 2
SI
Figure 1. Typical Application Circuit
〇Product structure : Silicon integrated circuit 〇This product has no designed protection against radioactive rays.
www.rohm.com
© 2020 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 14 • 001
TSZ02201-0G1G0G100480-1-2
20.May.2020 Rev.001
1/40