DS1250WP-100IND Maxim Integrated, DS1250WP-100IND Datasheet

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DS1250WP-100IND

Manufacturer Part Number
DS1250WP-100IND
Description
NVRAM 3.3V 4096K NV SRAM
Manufacturer
Maxim Integrated
Datasheet

Specifications of DS1250WP-100IND

Data Bus Width
8 bit
Memory Size
4 Mbit
Organization
512 K x 8
Interface Type
Parallel
Access Time
100 ns
Supply Voltage - Max
3.6 V
Supply Voltage - Min
3 V
Operating Current
50 mA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Package / Case
PowerCap Module
Mounting Style
SMD/SMT
19-5648; Rev 12/10
FEATURES
 10 years minimum data retention in the
 Data is automatically protected during power
 Replaces 512k x 8 volatile static RAM,
 Unlimited write cycles
 Low-power CMOS
 Read and write access times of 100ns
 Lithium energy source is electrically
 Optional industrial temperature range of -
 JEDEC standard 32-pin DIP package
 PowerCap Module (PCM) package
www.maxim-ic.com
absence of external power
loss
EEPROM or Flash memory
disconnected to retain freshness until power is
applied for the first time
40°C to +85°C, designated IND
– Directly surface-mountable module
– Replaceable snap-on PowerCap provides
– Standardized pinout for all nonvolatile
– Detachment feature on PCM allows easy
removal using a regular screwdriver
lithium backup battery
SRAM products
1 of 11
PIN ASSIGNMENT
PIN DESCRIPTION
A0 - A18
DQ0 - DQ7
V
GND
NC
CE
WE
OE
GND
CC
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
A15
A16
WE
V
NC
NC
OE
CE
3.3V 4096k Nonvolatile SRAM
CC
(Uses DS9034PC+ or DS9034PCI+ PowerCap)
GND
DQ0
DQ1
DQ2
A16
A14
A12
A18
A7
A6
A5
A4
A3
A2
A1
A0
34-Pin PowerCap Module (PCM)
32-Pin Encapsulated Package
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
740-Mil Extended
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
GND V
- Address Inputs
- Data In/Data Out
- Chip Enable
- Write Enable
- Output Enable
- Power (+3.3V)
- Ground
- No Connect
BAT
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
DS1250W
V
A15
A17
WE
A13
A8
A9
A11
OE
A10
CE
DQ7
DQ6
DQ5
DQ4
DQ3
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
CC
A18
A17
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0

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DS1250WP-100IND Summary of contents

Page 1

Rev 12/10 www.maxim-ic.com FEATURES  10 years minimum data retention in the absence of external power  Data is automatically protected during power loss  Replaces 512k x 8 volatile static RAM, EEPROM or Flash memory  Unlimited write ...

Page 2

DESCRIPTION The DS1250W 3.3V 4096k Nonvolatile SRAM is a 4,194,304-bit, fully static, nonvolatile SRAM organized as 524,288 words by 8 bits. Each NV SRAM has a self-contained lithium energy source and control circuitry, which constantly monitors V occurs, the lithium ...

Page 3

DS9034PC PowerCap. The PowerCap Module package design allows a DS1250W PCM device to be surface mounted without subjecting its lithium backup ...

Page 4

ABSOLUTE MAXIMUM RATINGS Voltage on Any Pin Relative to Ground Operating Temperature Range Commercial: Industrial: Storage Temperature EDIP PowerCap Lead Temperature (soldering, 10s) Soldering Temperature (reflow, PowerCap) Note: EDIP is wave or hand soldered only. This is a stress rating ...

Page 5

AC ELECTRICAL CHARACTERISTICS PARAMETER Read Cycle Time Access Time to Output Valid OE to Output Valid Output Active OE CE Output High-Z from Deselection Output Hold from Address Change Write Cycle Time Write Pulse Width Address Setup ...

Page 6

WRITE CYCLE 1 SEE NOTES AND 12 WRITE CYCLE 2 SEE NOTES AND DS1250W ...

Page 7

POWER-DOWN/POWER-UP CONDITION POWER-DOWN/POWER-UP TIMING PARAMETER V Fail Detect to and slew from slew from Valid to and Inactive Valid to ...

Page 8

... DS1250W-100+ 0°C to +70°C DS1250WP-100+ 0°C to +70°C DS1250W-100IND+ -40°C to +85°C DS1250WP-100IND+ -40°C to +85°C +Denotes a lead(Pb)-free/RoHS-compliant package. *DS9034PC+ or DS9034PCI+ (PowerCap) required. Must be ordered separately. PACKAGE INFORMATION For the latest package outline information and land patterns www.maxim-ic.com/packages. ...

Page 9

REVISION HISTORY REVISION DATE Added the Package Information table; removed the DIP module 121907 package drawing and dimension table Updated the storage information, soldering temperature, and lead temperature information in the Absolute Maximum Ratings section; removed the -150 MIN/MAX information ...

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