AT25320B-SSHL-T vs AT25640B-SSHL-T Comparison
Detailed side-by-side comparison of AT25320B-SSHL-T 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
AT25320B-SSHL-T - 32Kbit SPI EEPROM, 20MHz, 8-SOIC | Microchip
AT25320B-SSHL-T ✓ ActiveMicrochip Technology
AT25640B-SSHL-T - 64Kb SPI EEPROM, 8-SOIC, 20 MHz | Microchip
AT25640B-SSHL-T ✓ ActiveSpecification Comparison
| Parameter | AT25320B-SSHL-T | AT25640B-SSHL-T |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | EEPROM | Memory ICs |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.23 | $0.30 |
| Memory Type | Non-volatile EEPROM (Serial) | Non-volatile EEPROM (Serial) |
| Memory Density | 32 Kbit (4,096 x 8-bit) | 64 Kbit |
| Organization | 4,096 words x 8 bits | — |
| Interface | SPI (Serial Peripheral Interface) | SPI (Serial Peripheral Interface) |
| SPI Modes Supported | Mode 0 (0,0) and Mode 3 (1,1) | — |
| Maximum Clock Frequency | 20 MHz at 5V | 20 MHz |
| Supply Voltage Range | 2.5 V to 5.5 V | — |
| Write Cycle Time | 5 ms (typical, page/byte write) | 5 ms typical (page write) |
| Page Size | 32 bytes | 32 bytes |
| Write Endurance | 1,000,000 erase/write cycles (typical) | — |
| Data Retention | >100 years (typical) | 100 years (typical) |
| Write Protection | Hardware (/WP pin) and software block protection (upper 1/4, upper 1/2, full array) | Hardware (WP pin) and software (status register) |
| Operating Temperature Range | -40C to +85C (industrial, per -SSH suffix) | — |
| Package | 8-SOIC (0.150 inch body, JEDEC SO-8) | 8-pin SOIC (SOIC-8, narrow body, 0.150") |
| Mounting Type | Surface Mount | Surface Mount |
| MSL Level | 1 | 1 (unlimited floor life) |
| RoHS Status | Compliant | Compliant |
| Packaging | Tape & Reel (per -T suffix) | — |
| Memory Organization | — | 8192 x 8 (8 KB) |
| Supply Voltage (VCC) | — | 1.8 V to 5.5 V |
| 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] |
| SPI Modes | — | Mode 0 (0,0) and Mode 3 (1,1) |
| Operating Temperature | — | -40 °C to +85 °C (industrial) |
| AEC-Q100 | — | Qualified (AT25640B family) |
| Lead-Free / Halogen-Free | — | Yes |