DS1642 Maxim, DS1642 Datasheet - Page 6

• Manufacturer Part Number: DS1642
• Description: The DS1642 is a 2k x 8 nonvolatile static RAM and a full-function real-time clock (RTC), both of which are accessible in a bytewide format
• Manufacturer: Maxim

ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground……………………………………………..-0.3V to +6.0V
Operating Temperature Range……………………………………………...0°C to +70°C (noncondensing)
Storage Temperature Range…………………………………………… -40°C to +85°C (noncondensing)
Lead Temperature (soldering, 10 seconds)
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
Logic 1 Voltage
(All Inputs)
Logic 0 Voltage
(All Inputs)
Active Supply Current
TTL Standby Current
(
CMOS Standby Current
(
Input Leakage Current
(Any Input)
I/O Leakage Current
(Any Output)
Output Logic 1 Voltage
(I
Output Logic 0 Voltage
(I
Write Protection Voltage
Note: Hand or wave-soldered only (Note 6) …………. . . . . . . . . . ………..………. . . . . . . …..+260C
CE
CE
OUT
OUT
= V
< V
= -1.0mA)
= +2.1mA)
PARAMETER
PARAMETER
IH
CC
)
- 0.2V)
SYMBOL
SYMBOL
V
V
I
I
V
V
V
I
I
I
CC1
CC2
CC
OL
IL
OH
OL
IH
PF
IL
6 of 13
MIN
MIN
4.25
-0.3
2.2
2.4
-1
-1
TYP
TYP
4.37
15
1
1
V
CC
MAX
MAX
4.50
0.8
0.4
50
+1
+1
3
3
+ 0.3
UNITS
UNITS
mA
mA
mA
A
A
V
V
V
NOTES
NOTES
2, 3
2, 3
2, 3
DS1642
1
1
1
1
1