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DS1330W
3.3V 256k Nonvolatile SRAM with Battery Monitor
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Status
Description
The DS1330W 3.3V 256k NV SRAM is a 262,144-bit, fully static, nonvolatile SRAM organized as 32,768 words by 8 bits. Each NV SRAM has a self-contained lithium energy source and control circuitry which constantly monitors VCC for an out-of-tolerance condition. When such a condition occurs, the lithium energy source is automatically switched on and write protection is unconditionally enabled to prevent data corruption. Additionally, the DS1330W has dedicated circuitry for monitoring the status of VCC and the status of the internal lithium battery. DS1330W devices in the 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 32k x 8 SRAM, EEPROM or Flash components.
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Data Sheet
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Key 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 VCC power loss occurs and holds processor in reset during VCC ramp-up
- Battery monitor checks remaining capacity daily
- Read and write access times of 100ns
- Unlimited write cycle endurance
- Typical standby current 50µA
- Upgrade for 32k x 8 SRAM, EEPROM or Flash
- Lithium battery is electrically disconnected to retain freshness until power is applied for the first time
- Optional industrial temperature range of -40°C to +85°C, designated IND
- PowerCap Module (PCM) package
- 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
- Underwriters Laboratories (UL) Recognized
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Key Specifications:
| Memory (EPROM, EEPROM, ROM, NV SRAM) |
| Part Number |
Memory Type |
Memory Size |
Bus Type |
Real Time Clock |
DIP w/Int. Batt. |
Pwr. Cap Pckg. |
Battery Monitor |
GPIO |
VSUPPLY
(V) |
VSUPPLY
(V) |
Budgetary Price |
| min |
max |
See Notes |
| DS1330W |
NV SRAM |
32K x 8 |
Parallel |
No |
No |
Yes |
Yes |
No |
3 |
3.6 |
$8.99 @1k |
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See All Memory (EPROM, EEPROM, ROM, NV SRAM) (58)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Pin Assignment
Application Notes
Reliability Reports
Software/Models
Ordering Information
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Part Number
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Notes |
Free
Sample |
Buy |
Status
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Recommended Replacement |
Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| DS1330WP-100
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3.3V, 100ns |
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N/A |
No Longer Available |
DS1330WP-100+
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PCAP;34 pin;596.9 mm²
Outline Drawing:21-0246 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: PC2-4*
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0°C to +70°C
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RoHS/Lead-Free: No
Materials Analysis |
| DS1330WP-100+
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Active |
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PCAP;34 pin;596.9 mm²
Outline Drawing:21-0246 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: PC2+4*
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0°C to +70°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| DS1330WP-100IND
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3.3V, 100ns |
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N/A |
No Longer Available |
DS1330WP-100IND+
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PCAP;34 pin;596.9 mm²
Outline Drawing:21-0246 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: PC2-4*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| DS1330WP-100IND+
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Active |
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PCAP;34 pin;596.9 mm²
Outline Drawing:21-0246 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: PC2+4*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| DS1330WP-150
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3.3V, 150ns |
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N/A |
No Longer Available |
DS1330WP-100+
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PCAP;34 pin;596.9 mm²
Outline Drawing:21-0246 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: PC2-4*
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0°C to +70°C
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RoHS/Lead-Free: No
Materials Analysis |
| DS1330WP-150+
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Active |
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PCAP;34 pin;596.9 mm²
Outline Drawing:21-0246 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: PC2+4*
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0°C to +70°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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Document Ref.: 19-5590
Rev 3;
2010-10-21
This page last modified: 2010-10-21
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