DS2431G+U vs DS28EC20+ Comparison
Detailed side-by-side comparison of DS2431G+U by Analog Devices and DS28EC20+ by Analog Devices. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Specification Comparison
| Parameter | DS2431G+U | DS28EC20+ |
|---|---|---|
| Brand | Analog Devices | Analog Devices |
| Category | Memory ICs | EEPROM |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.45 | $2.05 |
| Memory Type | EEPROM (Non-Volatile) | Non-Volatile EEPROM (1-Wire) |
| Memory Size | 1 Kbit (1024 bits) | 20 Kbit (20480 bit) |
| Memory Organization | 4 pages x 256 bits (32 bytes) | 80 pages × 256 bits + 1 control page |
| Interface | 1-Wire® (single-contact DQ + GND) | 1-Wire (single-contact serial) |
| Write Cycle Time | 2 µs (scratchpad write) | — |
| Scratchpad Size | 8 bytes (64 bits) | 32 bytes |
| Unique ROM ID | 64-bit (8-byte family code + 6-byte serial + CRC) | — |
| Write Protection | Per-page, selectable; EPROM-emulation mode (1→0 only) | — |
| Package | 2-SFN (6.0 mm x 6.0 mm leadless) | TO-92-3 (through-hole) |
| Operating Temperature | -40 °C to +85 °C | -40 °C to +85 °C |
| Storage Temperature | -55 °C to +125 °C (per datasheet Absolute Maximum Ratings) | — |
| Supply (Parasite Power via DQ) | 2.8 V to 5.25 V (pull-up VPU) | — |
| Write Endurance | [DATA_NEEDED: end-cycle write cycles] | 200k cycles per page |
| Data Retention | [DATA_NEEDED: years] | >40 years |
| ESD Protection | [DATA_NEEDED: HBM/CDM rating] | — |
| Mounting Type | Surface Mount | Through Hole |
| RoHS Status | Compliant | Compliant |
| Lead-Free / Halogen-Free | Yes / Yes | — |
| Standard Speed (max) | — | 15.4 kbps |
| Overdrive Speed (max) | — | 90 kbps |
| Operating VPUP Range | — | 2.8 V to 5.25 V (overdrive requires 4 V to 5.25 V) |
| Programming Time (tPROG) | — | 10 ms (max) |
| Lead-Free Status | — | Yes |
| Unique 64-bit ROM ID | — | Yes (factory-lasered) |
| Backward Compatibility | — | DS2433 (4 Kbit 1-Wire EEPROM) |