Pin Functions
Pin Configuration
Features
1k bit serial EEPROM organized as 64
×
16bit
Low voltage operation
Read : 1.8~5.5V
Write : 1.8~5.5V
Low current consumption
Active : 1.5mA MAX (Vcc=1.8~2.5V)
3mA MAX (Vcc=2.5~5.5V)
Standby : 2μA MAX
Clock frequency : 500kHz MAX (Vcc=1.8~2.5V)
2MHz MAX (Vcc=2.5~5.5V)
Write cycle time : 5ms MAX
Automatic erase-before-write function during write operation
1,000,000 write cycle typical
40 years data retention
Operating temperature range : -40~85C
Block Diagram
11
CS
SK
DI
DO
16bit
1k bit
EEPROM
Array
Voltage
Detection
Instruction Decode
Control
Clock Generation
16bit
TTL compatible input/output
6bit
6bit
Inadvertent write protection function
Defaults to power up with write-disabled state
Software instructions for write-enable/disable
Inadvertent write protection at low voltage (Vcc Lock-out function)
READY/BUSY Status indicator function (DO pin)
Schmitt trigger circuit & noise filter are built into SK, DI pin.
Address auto-increment function during read operation
Write
Disable
High Voltage
Generation
Address
Decoder
Address
Buffer
R/W
Amps
Data
Register
Instruction
Register
BR93L46-W/F-W/RF-W/FJ-W/RFJ-W/
FV-W/RFV-W/RFVM-W
1
2
3
4
8
7
6
5
CS
SK
DI
DO
Vcc
NC
NC
GND
SOP8/SOP-J8/SSOP-B8
1
2
3
4
8
7
6
5
NC
Vcc
CS
SK
NC
GND
DO
DI
DIP8
BR93L46F-W/FJ-W/FV-W
BR93L46-W
1
2
3
4
8
7
6
5
CS
SK
DI
DO
Vcc
NC
NC
GND
SOP8/SOP-J8/SSOP-B8/MSOP8
BR93L46RF-W/RFJ-W
/RFV-W/RFVM-W
DI
DO
GND
Vcc
CS
SK
Pin Names
Functions
Chip Select
Serial Data Clock
Serial Data Input
Serial Data Output
Ground
Power Supply