AT24C64CN-SH-B vs AT25640B-SSHL-T Comparison
Detailed side-by-side comparison of AT24C64CN-SH-B by Microchip Technology and AT25640B-SSHL-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
AT24C64CN-SH-B - 64Kb I2C EEPROM, 1.8-5.5V, 8-SOIC | Microchip
AT24C64CN-SH-B ✓ ActiveMicrochip Technology
AT25640B-SSHL-T - 64Kb SPI EEPROM, 8-SOIC, 20 MHz | Microchip
AT25640B-SSHL-T ✓ ActiveSpecification Comparison
| Parameter | AT24C64CN-SH-B | AT25640B-SSHL-T |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Memory ICs | Memory ICs |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.27 | $0.30 |
| Memory Type | Non-volatile EEPROM (Electrically Erasable Programmable Read-Only Memory) | Non-volatile EEPROM (Serial) |
| Memory Size | 64 Kbit (8 K × 8) | — |
| Organization | 8 K × 8 (8,192 bytes) | — |
| Interface | I²C (2-wire serial) | SPI (Serial Peripheral Interface) |
| 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 | — |
| Data Retention | >40 years | 100 years (typical) |
| Programmable Device Addresses | Up to 8 devices (A0/A1/A2 pins) | — |
| Write Protection | Hardware WP pin | Hardware (WP pin) and software (status register) |
| Operating Temperature Range | -40 °C to +85 °C | — |
| Package | 8-SOIC (3.90 mm / 0.154" body width) | 8-pin SOIC (SOIC-8, narrow body, 0.150") |
| Mounting Type | Surface Mount | Surface Mount |
| MSL Level | MSL 1 (per JEDEC J-STD-020) | 1 (unlimited floor life) |
| Lead-Free / RoHS | Yes / Compliant | — |
| Halogen Free | Yes | — |
| Memory Density | — | 64 Kbit |
| Memory Organization | — | 8192 x 8 (8 KB) |
| 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) |
| 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) |
| Operating Temperature | — | -40 °C to +85 °C (industrial) |
| AEC-Q100 | — | Qualified (AT25640B family) |
| RoHS Status | — | Compliant |
| Lead-Free / Halogen-Free | — | Yes |