DS28EC20+ vs DS2431G+U Comparison
Detailed side-by-side comparison of DS28EC20+ by Analog Devices and DS2431G+U 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 | DS28EC20+ | DS2431G+U |
|---|---|---|
| Brand | Analog Devices | Analog Devices |
| Category | EEPROM | Memory ICs |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.05 | $1.45 |
| Memory Type | Non-Volatile EEPROM (1-Wire) | EEPROM (Non-Volatile) |
| Memory Size | 20 Kbit (20480 bit) | 1 Kbit (1024 bits) |
| Memory Organization | 80 pages × 256 bits + 1 control page | 4 pages x 256 bits (32 bytes) |
| Interface | 1-Wire (single-contact serial) | 1-Wire® (single-contact DQ + GND) |
| 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) | — |
| Write Endurance | 200k cycles per page | [DATA_NEEDED: end-cycle write cycles] |
| Data Retention | >40 years | [DATA_NEEDED: years] |
| Scratchpad Size | 32 bytes | 8 bytes (64 bits) |
| Programming Time (tPROG) | 10 ms (max) | — |
| Operating Temperature | -40 °C to +85 °C | -40 °C to +85 °C |
| Package | TO-92-3 (through-hole) | 2-SFN (6.0 mm x 6.0 mm leadless) |
| Mounting Type | Through Hole | Surface Mount |
| RoHS Status | Compliant | Compliant |
| Lead-Free Status | Yes | — |
| Unique 64-bit ROM ID | Yes (factory-lasered) | — |
| Backward Compatibility | DS2433 (4 Kbit 1-Wire EEPROM) | — |
| Write Cycle Time | — | 2 µs (scratchpad write) |
| Unique ROM ID | — | 64-bit (8-byte family code + 6-byte serial + CRC) |
| Write Protection | — | Per-page, selectable; EPROM-emulation mode (1→0 only) |
| 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) |
| ESD Protection | — | [DATA_NEEDED: HBM/CDM rating] |
| Lead-Free / Halogen-Free | — | Yes / Yes |