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Description
The U634H256 is a high-performance electronic component in the IC Chips category. It operates in two modes: SRAM mode and nonvolatile mode. In SRAM mode, it functions as a static RAM, allowing for read and write operations. In nonvolatile operation, data is transferred between the SRAM and the EEPROM. The U634H256 is designed with a fast static RAM and a nonvolatile EEPROM element. The SRAM has 32768 x 8 bits capacity and comes with access times of 25, 35, and 45 ns. It has low power consumption with ICC = 15 mA typ. at 200 ns Cycle Time. The U634H256 also features automatic data transfer from SRAM to EEPROM upon power down using an external capacitor.
Specifications and features
- High-performance CMOS nonvolatile static RAM
- 32768 x 8 bits capacity
- Access Times: 25, 35, and 45 ns
- Output Enable Access Times: 10, 15, and 20 ns
- ICC = 15 mA typ. at 200 ns Cycle Time
- Automatic STORE to EEPROM on Power Down using external capacitor
- Hardware or Software initiated STORE
- Automatic STORE Timing
- 105 STORE cycles to EEPROM
- 10 years data retention in EEPROM
- Automatic RECALL on Power Up
- Software RECALL Initiation
- Unlimited RECALL cycles from EEPROM
- Single 5 V ± 10 % Operation
- Operating temperature ranges: 0 to 70 °C, -40 to 85 °C, -40/-55 to 125 °C (only 35 ns)
- QS 9000 Quality Standard
- ESD protection > 2000 V (MIL STD 883C M3015.7-HBM)
- Packages: SOP32 (300 mil), PDIP32 (600 mil, only C/K-Type)
Application Scenarios
The U634H256 is suitable for various applications that require high-performance CMOS nonvolatile static RAM. It can be used in devices such as embedded systems, industrial control systems, data storage systems, and communication equipment.
Comparison
Advantages- High-performance CMOS nonvolatile static RAM
- Fast access times
- Low power consumption
- Automatic data transfer from SRAM to EEPROM
Disadvantages- Limited temperature range for 35 ns access time (-40/-55 to 125 °C)
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Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
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Popular parts of the same kind
- Datasheet: Download U634H256SC
- Chipdatas Part: CD92-U634H256SC
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/13 20:33 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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