Preliminary Datasheet
R1EX25512ASA00A
R1EX25512ATA00A
Serial Peripheral Interface
512K EEPROM (64-Kword × 8-bit)
R10DS0046EJ0200
Rev.2.00
Oct.04, 2010
Description
R1EX25xxx series is the Serial Peripheral Interface compatible (SPI) EEPROM (Electrically Erasable and
Programmable ROM). They realize high speed, low power consumption and a high level of reliability by employing
advanced MONOS memory technology and CMOS process and low voltage circuitry technology. They also have a
128-byte page programming function to make their write operation faster.
Note: Renesas Electronics' serial EEPROMs are authorized for using consumer applications such as cellular phones,
camcorders and audio equipments. Therefore, please contact Renesas Electronics' sales office before using
industrial applications such as automotive systems, embedded controllers and meters.
Features
• Single supply: 1.8 V to 5.5 V
• Serial Peripheral Interface compatible (SPI bus)
SPI mode 0 (0,0), 3 (1,1)
• Clock frequency: 5 MHz (2.5 V to 5.5 V), 3 MHz (1.8 V to 5.5 V)
• Power dissipation:
Standby: 5 µA (max)
Active (Read): 5 mA (max)
Active (Write): 5 mA (max)
• Automatic page write: 128-byte/page
• Write cycle time: 5 ms (max)
• Endurance: 1,000k Cycles @25 °C
• Data retention: 100 Years @25 °C
• Small size packages: SOP-8pin, TSSOP-8pin
• Shipping tape and reel
TSSOP-8pin : 3,000 IC/reel
SOP-8pin
: 2,500 IC/reel
• Temperature range: −40 to +85°C
• Lead free product.
R10DS0046EJ0200 Rev.2.00
Oct.04, 2010
Page 1 of 20
