DS1350WP-100 Maxim Integrated, DS1350WP-100 Datasheet

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DS1350WP-100

Manufacturer Part Number
DS1350WP-100
Description
NVRAM 3.3V 4096K NV SRAM w/Battery Monitor
Manufacturer
Maxim Integrated
Datasheet

Specifications of DS1350WP-100

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
Part # Aliases
90-1350W-P10
www.maxim-ic.com
FEATURES
 10 years minimum data retention in the
 Data is automatically protected during power
 Power supply monitor resets processor when
 Battery monitor checks remaining capacity
 Read and write access times of 100ns
 Unlimited write cycle endurance
 Typical standby current 50 µA
 Upgrade for 512k x 8 SRAM, EEPROM or
 Lithium battery is electrically disconnected to
 Optional industrial temperature range of
 PowerCap Module (PCM) package
DESCRIPTION
The DS1350W 3.3V 4096k Nonvolatile SRAM is a 4,194,304-bit, fully static, nonvolatile SRAM
organized as 524,288 words by eight bits. Each NV SRAM has a self-contained lithium energy source
and control circuitry which constantly monitors V
condition occurs, the lithium energy source is automatically switched on and write protection is
unconditionally enabled to prevent data corruption. Additionally, the DS1350W has dedicated circuitry
for monitoring the status of V
PowerCap Module package are directly surface mountable and are normally paired with a DS9034PC
PowerCap to form a complete Nonvolatile SRAM module. The devices can be used in place of 512k x 8
SRAM, EEPROM or Flash components.
19-5586; Rev 10/10
absence of external power
loss
V
reset during V
daily
Flash
retain freshness until power is applied for the
first time
-40°C to +85°C, designated IND
CC
- Directly surface-mountable module
- Replaceable snap-on PowerCap provides
- Standardized pinout for all nonvolatile
- Detachment feature on PowerCap allows
lithium backup battery
SRAM products
easy removal using a regular screwdriver
power loss occurs and holds processor in
CC
ramp-up
CC
and the status of the internal lithium battery. DS1350W devices in the
1 of 10
CC
PIN ASSIGNMENT
GND
PIN DESCRIPTION
A0-A18
DQ0-DQ7
V
GND
NC
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
for an out-of-tolerance condition. When such a
RST
CE
WE
OE
RST
BW
A15
A16
BW
V
WE
OE
CE
CC
CC
3.3V 4096k Nonvolatile SRAM
(Uses DS9034PC+ or DS9034PCI+ PowerCap)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
34-Pin PowerCap Module (PCM)
with Battery Monitor
GND V
- Address Inputs
- Data In/Data Out
- Chip Enable
- Write Enable
- Output Enable
- Reset Output
- Battery Warning Output
- Power (+3.3 Volts)
- Ground
- No Connect
BAT
DS1350W
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
A18
A17
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0

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DS1350WP-100 Summary of contents

Page 1

Rev 10/10 www.maxim-ic.com FEATURES  10 years minimum data retention in the absence of external power  Data is automatically protected during power loss  Power supply monitor resets processor when V power loss occurs and holds processor in ...

Page 2

READ MODE The DS1350W executes a read cycle whenever Enable) and (Output Enable) are active (low). The unique address specified by the 19 address inputs defines which of the 524,288 bytes of data is to ...

Page 3

FRESHNESS SEAL Each DS1350W is shipped from Dallas Semiconductor with its lithium energy source disconnected, guaranteeing full energy capacity. When V energy source is enabled for battery backup operation. PACKAGES The 34-pin PowerCap Module integrates SRAM memory and nonvolatile control ...

Page 4

ABSOLUTE MAXIMUM RATINGS Voltage on Any Pin Relative to Ground Operating Temperature Range Commercial: Industrial: Storage Temperature Range Lead Temperature (soldering, 10s) Soldering Temperature (reflow) This is a stress rating only and functional operation of the device at these or ...

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 12 WRITE CYCLE 2 SEE NOTES AND DS1350W ...

Page 7

POWER-DOWN/POWER-UP CONDITION BATTERY WARNING DETECTION SEE NOTE DS1350W ...

Page 8

POWER-DOWN/POWER-UP TIMING PARAMETER V Fail Detect to and CE CC Inactive WE V slew from Fail Detect to RST CC Active V slew from Valid to and CE ...

Page 9

... Output: 1.5V Input pulse Rise and Fall Times: 5ns ORDERING INFORMATION PART DS1350WP-100+ DS1350WP-100IND+ + 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. that a “+”, “#”, 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 Updated the soldering and storage information in the Absolute Maximum Ratings section, removed the unused AC timing specs in 10/10 the AC Electrical Characteristics table, updated the Ordering Information table, replaced the package outline drawing with ...

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