S-25C256A Datasheet, PDF (5/31 Pages) Seiko Instruments Inc – Write protect function during the low power supply voltage

Rev.2.2_02_S
SPI SERIAL E²PROM
S-25C256A
 DC Electrical Characteristics
Item
Current consumption (READ)
Table 8
Ta = −40°C to +85°C
Symbol
Condition
VCC = 1.6 V to 1.8 V VCC = 1.8 V to 2.5 V VCC = 2.5 V to 5.5 V
fSCK = 2.0 MHz
fSCK = 5.0 MHz
fSCK = 10.0 MHz
Unit
Min.
Max.
Min.
Max.
Min.
Max.
ICC1
No load at
SO pin
−
2.5
−
2.5
−
4.0
mA
Table 9
Ta = −40°C to +85°C
Item
Symbol
Condition
VCC = 1.7 V to 1.8 V VCC = 1.8 V to 2.5 V VCC = 2.5 V to 5.5 V
fSCK = 2.0 MHz
fSCK = 5.0 MHz
fSCK = 10.0 MHz
Unit
Min.
Max.
Min.
Max.
Min.
Max.
Current consumption (WRITE) ICC2
No load at
SO pin
−
4.0
−
4.0
−
4.0
mA
Table 10
Ta = −40°C to +85°C
Item
Symbol
Condition
VCC = 1.6 V to 1.8 V VCC = 1.8 V to 2.5 V VCC = 2.5 V to 5.5 V Unit
Min.
Max.
Min.
Max.
Min.
Max.
CS = VCC,
Standby current
consumption
ISB
SO = Open
Other inputs are
−
1.5
−
3.0
−
4.0
μA
VCC or GND
Input leakage current ILI
VIN = GND to VCC
−
1.0
−
1.0
−
1.0
μA
Output leakage current ILO
VOUT = GND to VCC
−
1.0
−
1.0
−
1.0
μA
Low level
VOL1
IOL = 2.0 mA
−
−
−
0.4
−
0.4
V
output voltage
VOL2
IOL = 1.5 mA
−
0.4
−
0.4
−
0.4
V
High level
VOH1
IOH = −2.0 mA
−
−
0.8 × VCC
−
0.8 × VCC
−
V
output voltage
VOH2
IOH = −0.4 mA
0.8 × VCC
−
0.8 × VCC
−
0.8 × VCC
−
V
5