BU9891GUL-W Datasheet, PDF (1/18 Pages) Rohm – WL-CSP EEPROM family Microwire Bus

High Reliability Serial EEPROMs
WL-CSP EEPROM family
Microwire Bus
BU9891GUL-W
No.10001EAT10
●Description
BU9891GUL-W is 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) 1.7~5.5V single power source action
5) Address auto increment function at read action
6) Write mistake prevention function
Write prohibition at power on
Write prohibition by command code
Write mistake prevention function at low voltage
7) Program cycle auto delete and auto end function
8) Program condition display by READY / BUSY
9) 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)
10) Data retention for 40 years
11) Data rewrite up to 100,000 times
12) Data at shipment all addresses FFFFh
Capacity
4Kbit
Bit format
256×16
Type
BU9891GUL-W
Power source voltage
1.7~5.5V
Package type
VCSP50L1
●Absolute Maximum Ratings(Ta=25℃)
Parameter
Symbol
Ratings
Unit
Impressed voltage
Permissible dissipation
VCC
Pd
-0.3~+6.5
V
220 (VCSP50L1 ) ^*1
mW
Storage temperature range
Tstg
-65~+125
℃
Action temperature range
Topr
-40~+85
℃
Terminal voltage
‐
-0.3~VCC+0.3
V
* When using at Ta=25℃ or higher, 2.2mW (to be reduced per 1℃.
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2010.07 - Rev.A