This IC is a 2-wire serial E2PROM with temperature sensor which operates in 1.7 V to 3.6 V voltage ranges. This IC has the capacity of 4 K-bit and the organization of 2 pages × 256-word × 8-bit. Page write and sequential read are available.
This IC operates with the I2C-bus at 1.0 MHz maximum.
A substantial reduction in current consumption may be achieved by using the software programmed shutdown mode which can be set by the I2C-bus.
In addition, the SMBus timeout function is supported; therefore, this IC is optimal for SSDs that communicate over the SMBus.
Caution : This product is intended to use in general electronic devices such as consumer electronics, office equipment, and communications devices. Before using the product in medical equipment or automobile equipment including car audio, keyless entry and engine control unit, it is imperative to contact our sales representatives.
Features
E2PROM block
- Page write
- 16 bytes / page
- Sequential read
- Write protect function during low power supply voltage
- Write protect
- Individual software data protection for each of four 128-byte blocks
- Endurance
- 106 cycle / word*1 (Ta = +25°C)
- Data retention
- 100 years (Ta = +25°C)
- Memory capacity
- 4 K-bit
- Initial delivery state
- FFh
Temperature sensor block
- Temperature accuracy
- 0.5°C typ. (Ta = +75°C to +95°C)
1.0°C typ. (Ta = +40°C to +125°C) - Temperature sample rate
- 8 samples / s min.
- Selectable hysteresis width
- No hysteresis, 1.5°C, 3.0°C, 6.0°C
Overall
- Current consumption
- E2PROM in standby mode and temperature sensor in shutdown mode: 3.0 μA max.
E2PROM in standby mode and temperature sensor in active mode: 0.1 mA max.
E2PROM in read operation mode and temperature sensor in active mode: 0.4 mA max.
E2PROM in write operation mode and temperature sensor in active mode: 2.0 mA max. - Operation voltage range
- 1.7 V to 3.6 V
- Operation frequency
- 1.0 MHz max. (VDD = 2.2 V to 3.6 V)
- Noise suppression
- Schmitt trigger and noise filter on input pins (SCL, SDA)
- Supported SMBus timeout function
- Operation temperature range
- Ta = -20°C to +125°C
- Lead-free (Sn 100%), halogen-free
*1. For each address (Word: 8-bit)