(China (Mainland))
Product Summary
The DS2431 is a 1024-bit, 1-Wire? EEPROM chip organized as four memory pages of 256 bits each. Data is written to an 8-byte scratchpad, verified, and then copied to the EEPROM memory. As a special feature, the four memory pages can individually be write protected or put in EPROM-emulation mode, where bits can only be changed from a 1 to a 0 state. The DS2431 communicates over the single-conductor 1-Wire bus. The communication follows the standard 1-Wire protocol. Each device has its own unalterable and unique 64-bit ROM registration number that is factory lasered into the chip. The registration number is used to address the device in a multidrop, 1-Wire net environment.
Parametrics
| 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) |
|
| min | max | ||||||||||
| DS2431 | EEPROM | 1K x 1 | 1-Wire | No | No | No | No | No | 2.8 | 5.25 |
Features
- 1024 Bits of EEPROM Memory Partitioned into Four Pages of 256 Bits
- Individual Memory Pages can be Permanently Write Protected or Put in EPROM-Emulation Mode ("Write to 0")
- Switchpoint Hysteresis and Filtering to Optimize Performance in the Presence of Noise
- IEC 1000-4-2 Level 4 ESD Protection (±8kV Contact, ±15kV Air, typical)
- Reads and Writes Over a Wide Voltage Range of 2.8V to 5.25V from -40°C to +85°C
- Communicates to Host with a Single Digital Signal at 15.4kbps or 125kbps Using 1-Wire Protocol
- Also Available as Automotive Version Meeting AEC-Q100 Grade 1 Qualification Requirements (DS2431-A1; Refer to the IC Data Sheet for Details)
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
Quantity | ||||||||||||
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 DS2431P+T&R |
Maxim Integrated Products |
EEPROM 1024-Bit 1-Wire EEPROM |
Data Sheet |
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| Image | Part No | Mfg | Description | |
Pricing (USD) |
Quantity | ||||||||||||
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DS2401 |
Maxim Integrated Products |
Serial Number Registration |
Data Sheet |
Negotiable |
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DS2401/T&R |
Maxim Integrated Products |
Serial Number Registration |
Data Sheet |
Negotiable |
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DS2401/T&R/SL |
Maxim Integrated Products |
Serial Number Registration |
Data Sheet |
Negotiable |
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DS2401+ |
Maxim Integrated Products |
Serial Number Registration Silicon Serial Number |
Data Sheet |
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DS2401+T&R |
Maxim Integrated Products |
Serial Number Registration Silicon Serial Number |
Data Sheet |
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DS2401AP-02B-06/FUJITSU |
Maxim Integrated Products |
Serial Number Registration |
Data Sheet |
Negotiable |
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