Memory ICs
•Block diagram
CS
SK
BR93LC46 / BR93LC46F / BR93LC46RF / BR93LC46FV
Command decode
Control
Clock generation
Power supply
voltage detector
Write
disable
High voltage
generator
Address
Address
6bit
DI
Command
buffer
decoder
6bit
register
1,024-bit
DO
Dummy bit
Data
register
16bit
R/W
amplifier
16bit
EEPROM array
•Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limits
Unit
Applied voltage
VCC
– 0.3 ~ + 6.5
V
BR93LC46
Power
dissipation BR93LC46F / RF
Pd
BR93LC46FV
500∗1
350∗2
mW
300∗3
Storage temperature
Tstg
– 65 ~ + 125
°C
Operating temperature
Topr
– 40 ~ + 85
°C
Terminal voltage
—
– 0.3 ~ VCC + 0.3
V
∗1 Reduced by 5.0mW for each increase in Ta of 1°C over 25°C.
∗2 Reduced by 3.5mW for each increase in Ta of 1°C over 25°C.
∗3 Reduced by 3.0mW for each increase in Ta of 1°C over 25°C.
•Recommended operating conditions (Ta = 25°C)
Parameter
Symbol Min. Typ. Max.
Unit
Power supply Writing
voltage
Reading
VCC
2.7
—
5.5
2.0
—
5.5
V
V
Input voltage
VIN
0
—
VCC
V
2