CDP1879 Intersil Corporation, CDP1879 Datasheet - Page 2

• Manufacturer Part Number: CDP1879
• Description: CMOS Real-Time Clock
• Manufacturer: Intersil Corporation

Absolute Maximum Ratings
DC Supply Voltage Range, V
Input Voltage Range, All Inputs . . . . . . . . . . . . . . -0.5 to V
DC Input Current, Any One Input . . . . . . . . . . . . . . . . . . . . . . 10mA
Device Dissipation Per Output Transistor . . . . . . . . . . . . . . . . 40mW
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
Operating Conditions
NOTES:
DC Operating Voltage Range
Input Voltage Range
DC Standby (Timekeeping) Voltage (Note 1), V
Clock Input Rise or Fall Time, t
1. Timekeeping function only, no READ/WRITE accesses, 32kHz external frequency source only, no crystal operation.
2. See Standby (Timekeeping) Voltage Operation.
(Voltage referenced to V
CDP1879 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +11V
CDP1879C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +7V
For T
(All Package Types)
T
T
V
V
A
A
DD
DD
A
= -40
= 0
= Full Package Temperature Range
= 5V
= 10V
o
to +70
o
C to +85
o
C
o
PARAMETER
C (Note 2)
SS
ditions should be selected so that operation Is always within the following ranges:
DD
at T
Terminal)
A
R
= FuIl Package-Temperature Range, Unless Otherwise specified. For maximum reliability, operating con-
, t
F
STBY
CDP1879, CDP1879C-1
DD
+0.5V
4-105
V
MIN
2.5
4
SS
3
-
-
Thermal Information
Thermal Resistance (Typical)
Operating Temperature Range (T
Storage Temperature Range (T
Lead Temperature (During Soldering). . . . . . . . . . . . . . . . . . +265
CDP1879
PDIP Package . . . . . . . . . . . . . . . . . . .
SBDIP Package . . . . . . . . . . . . . . . . . .
Package Type D, H . . . . . . . . . . . . . . . . . . . . . . .-55
Package Type E . . . . . . . . . . . . . . . . . . . . . . . . . . .-40
At Distance 1/16 1/32 in. (1.59 0.79mm) From Case for 10s Max
MAX
10.5
V
10
DD
1
-
-
LIMITS
MIN
V
2.5
4
3
SS
-
-
CDPl879C-1
STG
A
)
). . . . . . . . . . . .-65
MAX
V
6.5
10
JA
DD
-
-
(
60
50
o
C/W)
o
o
C to +125
C to +150
o
C to +85
UNITS
JC
V
V
V
V
N/A
s
s
(
12
o
C/W)
o
o
o
o
C
C
C
C