DS1245WP-150+ Maxim Integrated Products, DS1245WP-150+ Datasheet

IC NVSRAM 1MBIT 150NS 34PCM

DS1245WP-150+

Manufacturer Part Number
DS1245WP-150+
Description
IC NVSRAM 1MBIT 150NS 34PCM
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of DS1245WP-150+

Format - Memory
RAM
Memory Type
NVSRAM (Non-Volatile SRAM)
Memory Size
1M (128K x 8)
Speed
150ns
Interface
Parallel
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
0°C ~ 70°C
Package / Case
34-PowerCap™ Module
Data Bus Width
8 bit
Organization
128 K x 8
Interface Type
Parallel
Access Time
150 ns
Supply Voltage (max)
3.6 V
Supply Voltage (min)
3 V
Operating Current
50 mA
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
FEATURES
 10 years minimum data retention in the
 Data is automatically protected during power
 Replaces 128k 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
19-5640; Rev 11/10
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
lithium backup battery
Standardized pinout for all nonvolatile
SRAM products
Detachment feature on PowerCap allows
easy removal using a regular screwdriver
1 of 10
PIN ASSIGNMENT
PIN DESCRIPTION
A0 - A16
DQ0 - DQ7
V
GND
NC
CE
WE
OE
CC
3.3V 1024k Nonvolatile SRAM
GND
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
A15
A16
WE
V
NC
NC
OE
CE
CC
(Uses DS9034PC+ or DS9034PCI+ PowerCap)
GND
DQ0
DQ1
DQ2
A16
A14
A12
NC
A7
A6
A5
A4
A3
A2
A1
A0
32-PIN Encapsulated Package
34-Pin PowerCap Module (PCM)
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
DS1245W
V
A15
NC
WE
A13
A8
A9
A11
OE
A10
CE
DQ7
DQ6
DQ5
DQ4
DQ3
CC
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
NC
NC
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0

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DS1245WP-150+ Summary of contents

Page 1

... Data is automatically protected during power loss  Replaces 128k x 8 volatile static RAM, EEPROM or Flash memory  Unlimited write cycles  Low-power CMOS  Read and write access times of 100ns  Lithium energy source is electrically ...

Page 2

... PACKAGES The DS1245W is available in two packages: 32-pin DIP and 34-pin PowerCap Module (PCM). The 32- pin DIP integrates a lithium battery, an SRAM memory and a nonvolatile control function into a single package with a JEDEC-standard 600-mil DIP pinout. The 34-pin PowerCap Module integrates SRAM for an out-of-tolerance condition. When such a condition ...

Page 3

... DS9034PC PowerCap. The PowerCap Module package design allows a DS1245W PCM device to be surface mounted without subjecting its lithium backup battery to destructive high- temperature reflow soldering. After a DS1245W module base is reflow soldered, a DS9034PC PowerCap is snapped on top of the base to form a complete Nonvolatile SRAM module ...

Page 4

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

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 ...

Page 6

WRITE CYCLE 1 SEE NOTES AND DS1245W ...

Page 7

WRITE CYCLE 2 SEE NOTES AND 12 \ POWER-DOWN/POWER-UP CONDITION DS1245W ...

Page 8

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

Page 9

... DS1245W-100+ 0°C to +70°C DS1245WP-100+ 0°C to +70°C DS1245W-100IND+ -40°C to +85°C DS1245WP-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. “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status ...

Page 10

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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