DS1251/DS1251P
9 of 20
DC ELECTRICAL CHARACTERISTICS
(TA = Over the operating range.) (5V)
0B
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Input Leakage Current
IIL
-1.0
+1.0
A
12
I/O Leakage Current
CE
≥
VIH ≤ VCC
IIO
-1.0
+1.0
A
Output Current at 2.4V
IOH
-1.0
mA
Output Current at 0.4V
IOL
2.0
mA
Standby Current CE = 2.2V
ICCS1
5
10
mA
Standby Current
CE
= VCC - 0.5V
ICCS2
3.0
5.0
mA
Operating Current tCYC = 70ns
ICC01
85
mA
Write Protection Voltage
VPF
4.25
4.37
4.50
V
11
Battery Switchover Voltage
VSO
VBAT
6B
V
11
DC ELECTRICAL CHARACTERISTICS
(TA = Over the operating range.) (3.3V)
1B
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Input Leakage Current
IIL
-1.0
+1.0
A
12
I/O Leakage Current
CE
≥
VIH ≤ VCC
IIO
-1.0
+1.0
A
Output Current at 2.4V
IOH
-1.0
mA
Output Current at 0.4V
IOL
2.0
mA
Standby Current CE = 2.2V
ICCS1
5
7
mA
Standby Current
CE
= VCC - 0.5V
ICCS2
2.0
3.0
mA
Operating Current tCYC = 70ns
ICC01
50
mA
Write Protection Voltage
VPF
2.80
2.97
V
11
Battery Switchover Voltage
VSO
VBAT or
VPF
7B
V
11
CAPACITANCE
(TA = +25°C)
2B
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Input Capacitance
CIN
5
10
pF
Input/Output Capacitance
CI/O
5
10
pF