R1LP5256E Series 256Kb Advanced LPSRAM (32k word x 8bit) R10DS0268EJ0100 Rev.1.00 2017.1.27 Description The R1LP5256E Series is a family of low voltage 256-Kbit static RAMs organized as 32,768-word by 8-bit, fabricated by Renesass high-performance 0.15um CMOS and TFT technologies. The R1LP5256E Series has realized higher density, higher performance and low power consumption. The R1LP5256E Series is suitable for memory applications where a simple interfacing, battery operating and battery backup are the important design objectives. It has been packaged in 28-pin SOP and 28-pin TSOP. Features Single 4.5V~5.5V power supply Small stand-by current: 0.6A (5.0V, typical) No clocks, No refresh All inputs and outputs are TTL compatible. Easy memory expansion by CS Common Data I/O Three-state outputs: OR-tie Capability OE prevents data contention on the I/O bus Ordering Information Access Temperature Orderable part name Package Shipping container time range R1LP5256ESP-5SI B0 Tube (Magazine) 450-mil 28-pin plastic SOP R1LP5256ESP-5SI S0 Embossed tape 55 ns -40 ~ +85C R1LP5256ESA-5SI B1 Tray 8mm13.4mm 28-pin plastic TSOP R1LP5256ESA-5SI S1 Embossed tape R10DS0268EJ0100 Rev.1.00 Page 1 of 11 2017.1.27 R1LP5256E Series Pin Arrangement A14 1 28 Vcc A12 2 27 WE A7 3 26 A13 A6 4 25 A8 A5 5 24 A9 A4 6 23 A11 A3 7 22 OE A2 8 21 A10 28-pin SOP A1 9 20 CS A0 10 19 DQ7 DQ0 11 18 DQ6 DQ1 12 17 DQ5 DQ2 13 16 DQ4 GND 14 15 DQ3 OE 22 21 A10 A11 23 20 CS A9 24 19 DQ7 A8 25 18 DQ6 A13 26 17 DQ5 WE 27 16 DQ4 Vcc 28 15 DQ3 A14 1 14 GND 28-pin TSOP A12 2 13 DQ2 A7 3 12 DQ1 A6 4 11 DQ0 A5 5 10 A0 A4 6 9 A1 A3 7 8 A2 Pin Description Pin name Function Vcc Power supply Vss (GND) Ground A0 to A14 Address input DQ0 to DQ7 Data input/output CS Chip select WE Write enable OE Output enable R10DS0268EJ0100 Rev.1.00 Page 2 of 11 2017.1.27