标题: 25AA02E48 DataSheet [打印本页] 作者: admin 时间: 2010-4-24 11:53 标题: 25AA02E48 DataSheet 25AA02E48 2K SPI Bus Serial EEPROM with EUI-48? Node Identity
The Microchip Technology Inc. 25AA02E48 is a 2 Kbit Serial Electrically Erasable Programmable Read-Only Memory (EEPROM). The memory is accessed via a simple Serial Peripheral Interface (SPI) compatible serial bus. The bus signals required are a clock input (SCK) plus separate data in (SI) and data out (SO) lines. Access to the device is controlled through a Chip Select (CS) input. Communication to the device can be paused via the hold pin (HOLD). While the device is paused, transitions on its inputs will be ignored, with the exception of Chip Select, allowing the host to service higher priority interrupts. The 25AA02E48 is available in the standard 8-lead SOIC and 6-lead SOT-23 packages.
参数名称 数值
Density 2 Kbit (x8)
Max. Clock Freq. 10 MHz
Page Size (bytes) 16
Endurance 1,000,000
Op. Volt Range (V) 1.8 to 5.5
Temp Range (°C) -40°C to +85°C
特性
Pre-programmed Globally Unique, 48-bit Node
Address
Compatible with EUI-48™ and EUI-64™
10 MHz max. Clock Frequency
Low-Power CMOS Technology:
- Max. Write Current: 5 mA at 5.5V
- Read Current: 5 mA at 5.5V, 10 MHz
- Standby Current: 1 μA at 2.5V
256 x 8-bit Organization
Write Page mode (up to 16 bytes)
Sequential Read
Self-Timed Erase and Write Cycles (5 ms max.)
Block Write Protection:
- Protect none, 1/4, 1/2 or all of array
Built-in Write Protection:
- Power-on/off data protection circuitry
- Write enable latch
- Write-protect pin
High Reliability:
- Endurance: 1,000,000 Erase/Write cycles
- Data retention: >200 years
- ESD protection: >4000V
Temperature Ranges Supported:
- Industrial(I): -40C to +85C
