8k/ 16k bit EEPROMs for direct connection to serial ports
Description
Memory ICs
BR9080AF-W / BR9080ARFV-W / BR9080ARFVM-W / BR9016AF-W / BR9016ARFV-W / BR9016ARFVM-W
8k, 16k bit EEPROMs for direct connection to serial ports
BR9080AF-W / BR9080ARFV-W / BR9080ARFVM-W / BR9016AF-W / BR9016ARFV-W / BR9016ARFVM-W
The BR9080A and BR9016A series are serial EEPROMs that can be connected directly to a serial port and can be erased and written electrically.
Writing and reading is performed in word units, using four types of operation commands.
Communication occurs though CS, SK, DI, and DO pins, WC pin control is used to initiate a write disabled state, enabling these EEPROMs to be used as one-time ROMs.
During writing, operation is checked via the internal status check.
!Applications Movie, camera, cordless telephones, car stereos, VCRs, TVs, DIP switches, and other battery-powered equipment requiring low voltage and low current
!Features 1) BR9080AF-W / ARFV-W / ARFVM-W (8k bit) : 512 words ×16 bits BR9016AF-W / ARFV-W / ARFVM-W (16k bit) : 1024 words × 16bits 2) Single power supply operation 3) Serial data input and output 4) Automatic erase-before-write 5) Low current consumption Active (5V) : 5mA (max.
) Standby (5V) : 3µA (max.
) 6) Noise filter built into SK pin 7) Write protection when VCC is low Inhibition on inadvertant write with the WC pin.
8) SOP8 / SSOP-B8 / MSOP8 9) High reliability CMOS process 10) 100,000 ERASE / WRITE cycles 11) 10 years Data Retention
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Memory ICs
!Block diagram
BR9080AF-W / BR9080ARFV-W / BR9080ARFVM-W / BR9016AF-W / BR9016ARFV-W / BR9016ARFVM-W
INSTRUCTION DECODE
R/B
CS
CONTROL CLOCK GENERATION DETECT SUPPLY VOLTAGE WRITE DISABLE HIGH VOLTAGE GENERATOR
SK
WC
DI
INSTRACTION REGISTER
ADD BUFFER
∗
9bit
ADD DECORDER
∗
9bit
∗
8,192 bit EEPROM
DO
DATA REGISTER
16bit
R/W AMPS
16bit
∗ BR9016A is 10bit, 16,384bit BR9080A is 9bit, 8,192bit
!Pin descriptions
VCC R/B WC GND WC GND DO DI VCC R / B WC GND
CS
SK
DI
DO
R/B
VCC
CS
SK
CS
SK
DI
DO
BR9080ARFVM : MSOP8 BR9016ARFVM
BR90...
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