Absolute Maximum Ratings
(Notes 1
2)
Operation Conditions
Supply Voltage (V
CC
) (Note 3)
Supply Voltage (V
BB
) (Note 3)
DC Input or Output Voltage
(V
IN
V
OUT
)
Operation Temperature (T
A
)
Electr-Static Discharge Rating
Transistor Count
Typical Values
i
JA
DIP
Board
Socket
i
JA
PLCC
Board
Socket
Min
45
22
00
b
40
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Supply Voltage (V
CC
)
DC Input Voltage (V
IN
)
DC Output Voltage (V
OUT
)
Storage Temperature Range
b
0 5V to
a
7 0V
b
0 5V to V
CC
a
0 5V
b
0 5V to V
CC
a
0 5V
b
65 C to
a
150 C
Max
55
V
CC
b
0 4
V
CC
a
85
Unit
V
V
V
C
kV
1
10 300
59 C W
65 C W
80 C W
88 C W
Power Dissipation (PD)
Lead Temperature (Soldering 10 sec )
500 mW
260 C
DC Electrical Characteristics
V
CC
e
5V
g
10% V
BB
e
3V V
PFAIL
l
V
IH
C
L
e
100 pF (unless otherwise specified)
Symbol
V
IH
V
IL
V
OH
V
OL
I
IN
I
OZ
I
LKG
I
CC
Parameter
High Level Input Voltage
(Note 4)
Low Level Input Voltage
High Level Output Voltage
(Excluding OSC OUT)
Low Level Output Voltage
(Excluding OSC OUT)
Input Current (Except OSC IN)
Output TRI-STATE Current
Output High Leakage Current
T1 MFO INTR Pins
Quiescent Supply Current
(Note 6)
Conditions
Any Inputs Except OSC IN
OSC IN with External Clock
All Inputs Except OSC IN
OSC IN with External Clock
I
OUT
e b
20
mA
I
OUT
e b
4 0 mA
I
OUT
e
20
mA
I
OUT
e
4 0 mA
V
IN
e
V
CC
or GND
V
OUT
e
V
CC
or GND
V
OUT
e
V
CC
or GND
Outputs Open Drain
F
OSC
e
32 768 kHz
V
IN
e
V
CC
or GND (Note 5)
V
IN
e
V
CC
or GND (Note 6)
V
IN
e
V
IH
or V
IL
(Note 6)
V
BB
e
GND
V
IN
e
V
CC
or GND
F
OSC
e
32 768 kHz
V
CC
e
GND
OSC OUT
e
open circuit
other pins
e
GND
F
OSC
e
32 768 kHz
2 2V
s
V
BB
s
4 0V
other pins at GND
V
CC
e
GND
V
CC
e
5 5V
V
CC
b
0 1
35
01
0 25
g
1 0
g
5 0
g
5 0
Min
20
V
BB
b
0 1
Max
Units
V
V
08
01
V
V
V
V
V
V
mA
mA
mA
250
10
12 0
40
mA
mA
mA
mA
I
CC
Quiescent Supply Current
(Single Supply Mode)
(Note 7)
Standby Mode Battery
Supply Current
(Note 7)
Battery Leakage
I
BB
10
mA
I
BLK
15
b
5
mA
mA
Note 1
Absolute Maximum Ratings are those values beyond which damage to the device may occur
Note 2
Unless otherwise specified all voltages are referenced to ground
Note 3
In battery backed mode V
BB
s
V
CC
b
0 4V
Single Supply Mode Data retention voltage is 2 2V min
In single Supply Mode (Power connected to V
CC
pin) 4 5V
s
V
CC
s
5 5V
Note 4
This parameter (V
IH
) is not tested on all pins at the same time
Note 5
This specification tests I
CC
with all power fail circuitry disabled by setting D7 of Interrupt Control Register 1 to 0
Note 6
This specification tests I
CC
with all power fail circuitry enabled by setting D7 of Interrupt Control Register 1 to 1
Note 7
OSC IN is driven by a signal generator Contents of the Test Register
e
00(H) and the MFO pin is not configured as buffered oscillator out
2
NSC [ NATIONAL SEMICONDUCTOR ]
