R1LP5256E Series
256Kb Advanced LPSRAM (32k word x 8bit)
R10DS0070EJ0100
Rev.1.00
2011.04.13
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: 1A (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 Shipping
Orderable Part Name Package Quantity
time Range Container
R1LP5256ESP-5SR#B0 0 ~ +70C
55 ns
Max. 30pcs/Tube
R1LP5256ESP-5SI#B0 -40 ~ +85C
Tube Max. 300pcs/Inner Bag
R1LP5256ESP-7SR#B0 0 ~ +70C 450-mil 28-pin
Max. 1200pcs/Inner Box
70 ns
plastic SOP
R1LP5256ESP-7SI#B0 -40 ~ +85C
R1LP5256ESP-5SR#S0 0 ~ +70C
PRSP0028DB-B
55 ns
(28P2W-C)
R1LP5256ESP-5SI#S0 -40 ~ +85C
Embossed
1000pcs/Reel
tape
R1LP5256ESP-7SR#S0 0 ~ +70C
70 ns
R1LP5256ESP-7SI#S0 -40 ~ +85C
R1LP5256ESA-5SR#B0 0 ~ +70C
55 ns
R1LP5256ESA-5SI#B0 -40 ~ +85C
Max. 234pcs/Tray
Tray
8mm13.4mm 28-pin
Max. 1872pcs/Inner Box
R1LP5256ESA-7SR#B0 0 ~ +70C
plastic TSOP
70 ns
R1LP5256ESA-7SI#B0 -40 ~ +85C
(normal-bend type)
R1LP5256ESA-5SR#S0 0 ~ +70C
55 ns
PTSA0028ZA-A
R1LP5256ESA-5SI#S0 -40 ~ +85C
Embossed
(28P2C-A)
1000pcs/Reel
tape
R1LP5256ESA-7SR#S0 0 ~ +70C
70 ns
R1LP5256ESA-7SI#S0 -40 ~ +85C
R10DS0070EJ0100 Rev.1.00 Page 1 of 13
2011.04.13 R1LP5256E 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
R10DS0070EJ0100 Rev.1.00 Page 2 of 13
2011.04.13