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BR25S256FJ-W Datasheet(PDF) 1 Page - Rohm |
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BR25S256FJ-W Datasheet(HTML) 1 Page - Rohm |
1 / 19 page 1/18 www.rohm.com 2010.12 - Rev.B © 2010 ROHM Co., Ltd. All rights reserved. High Reliability Series Serial EEPROMs SPI BUS BR25□□□□family BR25S□□□ Series ●Description BR25S □□□ series is a serial EEPROM of SPI BUS interface method. ●Features 1) High speed clock action up to 20MHz (Max.) 2) Wait function by HOLDB terminal 3) Part or whole of memory arrays settable as read only memory area by program 4) 1.7~5.5V single power source action most suitable for battery use 5) Page write mode useful for initial value write at factory shipment 6) Highly reliable connection by Au pad and Au wire 7) For SPI bus interface (CPOL, CPHA) = (0, 0), (1, 1) 8) Auto erase and auto end function at data rewrite 9) Low current consumption At write action (5V) : 1.5mA (Typ.) At read action (5V) : 1.0mA (Typ.) At standby action (5V) : 0.1 μA (Typ.) 10) Address auto increment function at read action 11) Write mistake prevention function Write prohibition at power on Write prohibition by command code (WRDI) Write prohibition by WPB pin Write prohibition block setting by status registers (BP1, BP0) Write mistake prevention function at low voltage 12) SOP8/SOP-J8/SSOP-B8/TSSOP-B8/MSOP8/TSSOP-B8J/VSON008X2030 Package 13) Data at shipment Memory array: FFh, status register WPEN, BP1, BP0 : 0 14) Data kept for 40 years 15) Data rewrite up to 1,000,000 times ●Page Write Page 32Byte 64Byte Part Number BR25S320-W BR25S640-W BR25S128-W BR25S256-W ●BR25S □□□ series Capacity Bit format Power source voltage SOP8 SOP-J8 SSOP-B8 TSSOP-B8 MSOP8 TSSOP-B8J VSON008 X2030 32Kbit 4K×8 1.7V~5.5V ● ● ● ● ● ● ● 64Kbit 8K×8 1.7V~5.5V ● ● ● ● ● ● 128Kbit 16K×8 1.7V~5.5V ● ● ● ● 256Kbit 32K×8 1.7V~5.5V ● ● No.10001EBT08 |
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