DS1644 Maxim, DS1644 Datasheet - Page 7

• Manufacturer Part Number: DS1644
• Description: The DS1644 is a 32k x 8 nonvolatile static RAM with a full function real time clock, which are both accessible in a byte-wide format
• Manufacturer: Maxim

ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground……………………………………………..-0.3V to +6.0V
Storage Temperature Range………………………………………………-40°C to +85°C, Noncondensing
Operating Temperature Range…….................…….......……………………0°C to +70°C, Noncondensing
Lead Temperature (soldering, 10s) ...................................................................................................+260°C
Soldering Temperature (reflow, PowerCap package) .......................................................................+260°C
This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation
sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect
reliability.
RECOMMENDED DC OPERATING CONDITIONS
DC ELECTRICAL CHARACTERISTICS
PARAMETER
Supply Voltage
Logic 1 Voltage All Inputs
Logic 0 Voltage All Inputs
PARAMETER
Average V
TTL Standby Current (
CMOS Standby Current (
0.2V)
Input Leakage Current (any input)
Output Leakage Current
Output Logic 1 Voltage
(I
Output Logic 0 Voltage
(I
Power-Fail Voltage
OUT
OUT
= -1.0 mA)
= +2.1 mA)
CC
Power Supply Current
CE
CE
=V
=V
IH
)
CC
-
SYMBOL
SYMBOL
V
V
I
I
I
V
V
V
V
I
I
CC1
CC2
CC3
OL
IL
CC
OH
OL
IH
PF
IL
7 of 14
MIN
MIN
-0.3
4.5
2.2
2.4
4.0
-1
-1
TYP
TYP
(Over the Operating Range)
(Over the Operating Range)
V
MAX
MAX
CC
5.5
0.8
4.0
0.4
4.5
75
+1
+1
6
+0.3
UNITS
UNITS
mA
mA
mA
A
A
V
V
V
V
V
V
DS1644/DS1644P
NOTES
NOTES
1
3
3
3