DS1251 Maxim, DS1251 Datasheet - Page 2

• Manufacturer Part Number: DS1251
• Description: The DS1251 4096K NV SRAM with Phantom Clock is a fully static nonvolatile RAM (organized as 512K words by 8 bits) with a built-in real-time clock
• Manufacturer: Maxim

ORDERING INFORMATION
+ Denotes a lead(Pb)-free/RoHS-compliant package.
*DS9034PCX+ or DS9034I-PCX+ (PowerCap) required. Must be ordered separately.
PIN DESCRIPTION
EDIP
DS1251W-120+
DS1251W-120IND+
DS1251WP-120+
DS1251WP-120IND+
DS1251Y-70+
DS1251YP-70+
DS1251YP-70IND+
10
11
12
23
25
26
27
28
30
31
13
14
15
17
18
19
20
21
1
2
3
4
5
6
7
8
9
1
PIN
PowerCap
PART
34
32
30
25
24
23
22
21
20
19
18
28
29
27
26
31
33
16
15
14
13
12
11
10
1
3
2
9
NAME
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
RST
A18
A16
A14
A12
A10
A11
A13
A17
A15
A7
A6
A5
A4
A3
A2
A1
A0
A9
A8
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
Active-Low Reset Input. This pin has an internal pullup resistor connected to V
Address Inputs
Data In/Data Out
RANGE (V)
VOLTAGE
2 of 20
3.3
3.3
3.3
3.3
5.0
5.0
5.0
PIN-PACKAGE
32 EDIP (0.740a)
32 EDIP (0.740a)
34 PowerCap*
34 PowerCap*
32 EDIP (0.740a)
34 PowerCap*
34 PowerCap*
FUNCTION
CC
.