| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Mfr | Microchip Technology |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Technology | EEPROM |
| Supplier Device Package | 8-SOIC |
| Memory Size | 1Kbit |
| Memory Type | Non-Volatile |
| Voltage - Supply | 1.8V ~ 5.5V |
| Clock Frequency | 2 MHz |
| Memory Organization | 128 x 8, 64 x 16 |
| Memory Format | EEPROM |
| Memory Interface | 3-Wire Serial |
| Write Cycle Time - Word, Page | 5ms |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | 93C46 |
| REACH Status | REACH Unaffected |
| Standard Package | 4,000 |
| ECCN | EAR99 |
| HTSUS | 8542.32.0051 |
AT93C46DN-SH-T EEPROM Memory IC 1Kbit 3-Wire Serial 2 MHz 8-SOIC
The AT93C46DN-SH-T is a high-reliability 1Kbit (128x8 or 64x16) serial EEPROM from Microchip Technology (formerly Atmel), designed for low-power, non-volatile data storage in industrial, consumer, and automotive applications. It features a 3-wire serial interface (compatible with Microwire) for simple MCU integration, supporting a maximum 2MHz clock frequency for fast data transfer, and operates over a wide 1.8V–5.5V supply voltage range to adapt to diverse system requirements. Built with advanced CMOS technology, it offers a minimum of 1,000,000 write/erase cycles and 100-year data retention, paired with self-timed write cycles (0.1–10ms) that eliminate the need for a separate erase step.
Operating across a -40°C to 85°C industrial temperature range, the AT93C46DN-SH-T delivers low power consumption with a typical 0.5mA active current (5.0V, 1MHz) and ultra-low standby current, ideal for battery-powered devices. It features 250ns access time, 5pf maximum output capacitance, and robust ESD protection, ensuring stable performance in noisy electrical environments.
Alternative EEPROM memory Models
● Microchip AT93C46DN-SH-B: Pin-compatible 1Kbit 3-wire EEPROM from the same series, with identical specs and alternative packaging for flexible sourcing.
● onsemi CAV93C46VE-GT3: 1Kbit 3-wire serial EEPROM, cost-effective substitute with similar voltage range and industrial temperature support.
● Microchip 93AA46CT-I/SN: Similar 1Kbit EEPROM with 3-wire interface, compatible performance for general-purpose storage applications.
● Huimang FT93C46A: 1Kbit SOIC-8 EEPROM, pin-compatible low-cost alternative with 1.8V–5.5V supply and 1M write cycles.