R1LV5256E Series 256Kb Advanced LPSRAM (32k word x 8bit) R10DS0068EJ0100 Rev.1.00 2011.04.13 Description The R1LV5256E 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 R1LV5256E Series has realized higher density, higher performance and low power consumption. The R1LV5256E 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 2.7~3.6V power supply Small stand-by current: 1A (3.0V, 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 Shipping Orderable Part Name Package Quantity time Range Container R1LV5256ESP-5SR B0 0 ~ +70C 55 ns Max. 30pcs/Tube R1LV5256ESP-5SI B0 -40 ~ +85C Tube Max. 300pcs/Inner Bag R1LV5256ESP-7SR B0 0 ~ +70C 450-mil 28-pin Max. 1200pcs/Inner Box 70 ns plastic SOP R1LV5256ESP-7SI B0 -40 ~ +85C R1LV5256ESP-5SR S0 0 ~ +70C PRSP0028DB-B 55 ns (28P2W-C) R1LV5256ESP-5SI S0 -40 ~ +85C Embossed 1000pcs/Reel tape R1LV5256ESP-7SR S0 0 ~ +70C 70 ns R1LV5256ESP-7SI S0 -40 ~ +85C R1LV5256ESA-5SR B0 0 ~ +70C 55 ns R1LV5256ESA-5SI B0 -40 ~ +85C Max. 234pcs/Tray Tray 8mm13.4mm 28-pin Max. 1872pcs/Inner Box R1LV5256ESA-7SR B0 0 ~ +70C plastic TSOP 70 ns R1LV5256ESA-7SI B0 -40 ~ +85C (normal-bend type) R1LV5256ESA-5SR S0 0 ~ +70C 55 ns PTSA0028ZA-A R1LV5256ESA-5SI S0 -40 ~ +85C Embossed (28P2C-A) 1000pcs/Reel tape R1LV5256ESA-7SR S0 0 ~ +70C 70 ns R1LV5256ESA-7SI S0 -40 ~ +85C R10DS0068EJ0100 Rev.1.00 Page 1 of 13 2011.04.13 R1LV5256E Series Pin Arrangement A14 28 Vcc 1 A12 27 WE 2 A7 26 A13 3 A6 25 A8 4 A5 24 A9 5 A4 23 A11 6 A3 22 OE 7 A2 21 A10 8 28-pin SOP A1 20 CS 9 A0 19 DQ7 10 DQ0 18 DQ6 11 DQ1 17 DQ5 12 DQ2 16 DQ4 13 GND 15 DQ3 14 OE 21 A10 22 A11 20 CS 23 A9 19 DQ7 24 A8 18 DQ6 25 A13 17 DQ5 26 WE 16 DQ4 27 Vcc 15 DQ3 28 A14 14 GND 1 28-pin TSOP A12 13 DQ2 2 A7 12 DQ1 3 A6 11 DQ0 4 A5 10 A0 5 A4 9 A1 6 A3 8 A2 7 Pin Description Pin name Function Vcc Power supply Vss Ground A0 to A14 Address input DQ0 to DQ7 Data input/output CS Chip select WE Write enable OE Output enable R10DS0068EJ0100 Rev.1.00 Page 2 of 13 2011.04.13