Datasheet

DS1251/DS1251P
9 of 20
DC ELECTRICAL CHARACTERISTICS
(T
A
= Over the operating range.) (5V)
0BPARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Input Leakage Current I
IL
-1.0 +1.0
µA
12
I/O Leakage Current
CE ≥
V
IH
≤ V
CC
I
IO
-1.0 +1.0
µA
Output Current at 2.4V
I
OH
-1.0
mA
Output Current at 0.4V
I
OL
2.0
mA
Standby Current CE = 2.2V I
CCS1
5 10 mA
Standby Current
CE = V
CC
- 0.5V
I
CCS2
3.0 5.0 mA
Operating Current t
CYC
= 70ns I
CC01
85 mA
Write Protection Voltage V
PF
4.25 4.37 4.50 V 11
Battery Switchover Voltage V
SO
V
BAT
6BV 11
DC ELECTRICAL CHARACTERISTICS
(T
A
= Over the operating range.) (3.3V)
1BPARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Input Leakage Current I
IL
-1.0 +1.0
µA
12
I/O Leakage Current
CE ≥
V
IH
≤ V
CC
I
IO
-1.0 +1.0
µA
Output Current at 2.4V
I
OH
-1.0
mA
Output Current at 0.4V
I
OL
2.0
mA
Standby Current
CE
= 2.2V
I
CCS1
5
7
mA
Standby Current
CE = V
CC
- 0.5V
I
CCS2
2.0 3.0 mA
Operating Current t
CYC
= 70ns
I
CC01
50
mA
Write Protection Voltage
V
PF
2.80
2.97
V
11
Battery Switchover Voltage V
SO
V
BAT
or
V
PF
7BV 11
CAPACITANCE
(T
A
= +25°C)
2BPARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Input Capacitance
C
IN
5
10
pF
Input/Output Capacitance
C
I/O
5
10
pF