DS1245AB
PRODUCTION1024k Nonvolatile SRAM
- Part Models
- 7
- 1ku List Price
- Starting From $27.42
Overview
- 10 years minimum data retention in the absence of external power
- 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 70ns
- Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time
- Full ±10% VCC operating range (DS1245Y)
- Optional ±5% VCC operating range (DS1245AB)
- Optional industrial temperature range of -40°C to +85°C, designated IND
- JEDEC standard 32-pin DIP package
- 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
The DS1245 1024k Nonvolatile (NV) SRAMs are 1,048,576-bit, fully static, nonvolatile SRAMs organized as 131,072 words by 8 bits. Each complete 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 nconditionally enabled to prevent data corruption. DIP-package DS1245 devices can be used in place of existing 128k x 8 static RAMs directly conforming to the popular bytewide 32-pin DIP standard. DS1245 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. There is no limit on the number of write cycles that can be executed and no additional support circuitry is required for microprocessor interfacing.
Documentation
Data Sheet 1
Design Note 5
Technical Articles 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| DS1245AB-100+ | Encapsulated Dual-In-Line Module | ||
| DS1245AB-120+ | Encapsulated Dual-In-Line Module | ||
| DS1245AB-120IND+ | Encapsulated Dual-In-Line Module | ||
| DS1245AB-70+ | Encapsulated Dual-In-Line Module | ||
| DS1245AB-70IND+ | Encapsulated Dual-In-Line Module | ||
| DS1245AB-85+ | Encapsulated Dual-In-Line Module | ||
| DS1245ABP-70IND+ | PowerCap Module |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 2, 2015 - 1479L ASSEMBLY |
||
| DS1245AB-100+ | PRODUCTION | |
| DS1245AB-120+ | PRODUCTION | |
| DS1245AB-120IND+ | PRODUCTION | |
| DS1245AB-70+ | PRODUCTION | |
| DS1245AB-70IND+ | PRODUCTION | |
| DS1245AB-85+ | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
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