AT25640B-SSHL-T vs AT24C64CN-SH-B Comparison
Detailed side-by-side comparison of AT25640B-SSHL-T by Microchip Technology and AT24C64CN-SH-B 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
AT25640B-SSHL-T - 64Kb SPI EEPROM, 8-SOIC, 20 MHz | Microchip
AT25640B-SSHL-T ✓ ActiveMicrochip Technology
AT24C64CN-SH-B - 64Kb I2C EEPROM, 1.8-5.5V, 8-SOIC | Microchip
AT24C64CN-SH-B ✓ ActiveSpecification Comparison
| Parameter | AT25640B-SSHL-T | AT24C64CN-SH-B |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Memory ICs | Memory ICs |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.30 | $0.27 |
| Memory Type | Non-volatile EEPROM (Serial) | Non-volatile EEPROM (Electrically Erasable Programmable Read-Only Memory) |
| Memory Density | 64 Kbit | — |
| Memory Organization | 8192 x 8 (8 KB) | — |
| Interface | SPI (Serial Peripheral Interface) | I²C (2-wire serial) |
| Maximum Clock Frequency | 20 MHz | — |
| Supply Voltage (VCC) | 1.8 V to 5.5 V | — |
| Page Size | 32 bytes | — |
| Endurance | 1,000,000 erase/write cycles per page (typical) | — |
| Data Retention | 100 years (typical) | >40 years |
| Standby Current | 5 µA typical at 5 V | — |
| Active Read Current | [DATA_NEEDED: active read current at 5 V] | — |
| Write Cycle Time | 5 ms typical (page write) | — |
| SPI Modes | Mode 0 (0,0) and Mode 3 (1,1) | — |
| Write Protection | Hardware (WP pin) and software (status register) | Hardware WP pin |
| Operating Temperature | -40 °C to +85 °C (industrial) | — |
| Package | 8-pin SOIC (SOIC-8, narrow body, 0.150") | 8-SOIC (3.90 mm / 0.154" body width) |
| Mounting Type | Surface Mount | Surface Mount |
| AEC-Q100 | Qualified (AT25640B family) | — |
| RoHS Status | Compliant | — |
| Lead-Free / Halogen-Free | Yes | — |
| MSL Level | 1 (unlimited floor life) | MSL 1 (per JEDEC J-STD-020) |
| Memory Size | — | 64 Kbit (8 K × 8) |
| Organization | — | 8 K × 8 (8,192 bytes) |
| Clock Frequency (max) | — | 1 MHz (Fast-Plus mode) |
| Access Time | — | 550 ns |
| Operating Voltage Range | — | 1.8 V to 5.5 V |
| Write Endurance | — | 1,000,000 erase/write cycles |
| Programmable Device Addresses | — | Up to 8 devices (A0/A1/A2 pins) |
| Operating Temperature Range | — | -40 °C to +85 °C |
| Lead-Free / RoHS | — | Yes / Compliant |
| Halogen Free | — | Yes |