MM58274C National, MM58274C Datasheet - Page 2

• Manufacturer Part Number: MM58274C
• Description: Microprocessor Compatible Real Time Clock
• Manufacturer: National

Absolute Maximum Ratings
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
DC Input or Output Voltage
DC Input or Output Diode Current
Storage Temperature T
Supply Voltage V
Power Dissipation P
Lead Temperature
Electrical Characteristics
Note 1 Absolute Maximum Ratings are those values beyond which damage to the device may occur All voltages referenced to ground unless otherwise noted
Note 2 The DB0–DB3 and AD0–AD3 lines all have active P-channel pull-up transistors which will source current The CS RD and WR lines have internal pull-up
resistors to V
Symbol
C
I
V
V
(Soldering 10 seconds)
V
V
OZH
I
C
V
I
I
I
OUT
DD
OH
OH
OL
IL
IL
IL
IH
IL
IN
DD
High Level Input
Voltage (except
XTAL IN)
Low Level Input
Voltage (except
XTAL IN)
High Level Output
Voltage (DB0–DB3)
High Level Output
Voltage (INT)
Low Level Output
Voltage (DB0–DB3
INT)
Low Level Input Current
(AD0–AD3 DB0–DB3)
Low Level Input Current
(WR RD)
Low Level Input Current
(CS)
Ouput High Level
Leakage Current (INT)
Average Supply Current
Input Capacitance
Output Capacitance
DD
D
Parameter
STG
b
0 3V to V
b
V
65 C to
DD
I
I
I
(In Test Mode)
I
i
V
V
V
V
All V
V
V
(Outputs Disabled)
OL
OH
OH
OH
OL
IN
IN
IN
OUT
DD
DD
(Note 1)
e
e
DD
e
e b
e b
e b
e
e
e
IN
e
e
g
5V
e
a
500 mW
20 A
1 6 mA
V
V
V
a
e
5 0 mA
2 2V (Standby Mode)
5 0V (Active Mode)
SS
SS
SS
150 C
Conditions
V
g
20 A
1 6 mA
20 A
V
0 3V
6 5V
260
DD
10% T
(Note 2)
(Note 2)
(Note 2)
CC
or Open Circuit
2
e b
Operating Conditions
Operating Supply Voltage
Standby Mode Supply Voltage
DC Input or Output Voltage
Operating Temperature Range
40 C to
a
85 C unless otherwise stated
V
V
DD
DD
Min
b
b
b
2 0
3 7
b
b
5
5
5
0 1
0 1
Typ
10
4
5
b
Min
4 5
2 2
0
40
b
b
Max
b
0 8
0 1
0 4
2 0
10
10
190
550
1
80
Max
V
5 5
5 5
85
DD
Units
Units
mA
pF
pF
V
V
V
V
V
V
V
V
V
V
C
A
A
A
A
A