AT21CS01-STUM-T vs AT21CS01-STUM10-T Comparison
Detailed side-by-side comparison of AT21CS01-STUM-T by Microchip Technology and AT21CS01-STUM10-T by Microchip Technology. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Microchip Technology
AT21CS01-STUM-T - 1Kbit Single-Wire Serial EEPROM | Microchip
AT21CS01-STUM-T ✓ ActiveMicrochip Technology
AT21CS01-STUM10-T - 1Kb Single-Wire EEPROM, SOT-23-3 | Microchip
AT21CS01-STUM10-T ✓ ActiveSpecification Comparison
| Parameter | AT21CS01-STUM-T | AT21CS01-STUM10-T |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | EEPROM | EEPROM |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.26 | $0.26 |
| Memory Type | Non-volatile EEPROM (Serial) | EEPROM (Non-Volatile) |
| Memory Size | 1 Kbit (128 x 8 bits) | 1 Kbit (128 x 8) |
| Organization | 128 words x 8 bits | 128 x 8 |
| Bus Interface | Single-Wire (SI/O) Serial | — |
| Operating Voltage Range | 1.7 V to 3.6 V | — |
| Standard-Speed Bit Rate | 15.4 kbps max (AT21CS01 only) | — |
| High-Speed Bit Rate | 125 kbps max | — |
| Write Cycle Support | 8-byte page write or single-byte write | — |
| Write Endurance | >1,000,000 cycles per location | >1,000,000 cycles per location |
| Unique Serial Number | 64-bit factory-programmed | — |
| Discovery Response | Yes (quick device detection) | — |
| Operating Temperature Range | -40 C to +85 C | — |
| Package | SOT-23-3 (TO-236-3, SC-59) | SOT-23-3 (TO-236-3 / SC-59) |
| Mounting Type | Surface Mount | Surface Mount |
| Power Scheme | Parasitic (powered via SI/O pin) | — |
| External Pins Required | 2 (SI/O and GND) | — |
| RoHS Status | Compliant | Compliant |
| Interface | — | Single-Wire (I2C-compatible protocol structure) |
| Serial Number | — | Factory-programmed 64-bit unique ID |
| Clock Frequency (Standard Mode) | — | 15.4 kbps |
| Clock Frequency (High Speed) | — | 125 kbps |
| Supply Voltage | — | 1.7 V to 3.6 V |
| Write Cycle Time (Word/Page) | — | 5 ms max (self-timed) |
| Operating Temperature | — | -40 C to +85 C (Industrial) |
| Number of Pins | — | 3 |
| Pin Configuration | — | SI/O (data + parasitic power), GND, NC |