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 Renesas’s 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: 1µA (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
Orderable Part Name
R1LV5256ESP-5SR#B0
R1LV5256ESP-5SI#B0
R1LV5256ESP-7SR#B0
R1LV5256ESP-7SI#B0
R1LV5256ESP-5SR#S0
R1LV5256ESP-5SI#S0
R1LV5256ESP-7SR#S0
R1LV5256ESP-7SI#S0
R1LV5256ESA-5SR#B0
R1LV5256ESA-5SI#B0
R1LV5256ESA-7SR#B0
R1LV5256ESA-7SI#B0
R1LV5256ESA-5SR#S0
R1LV5256ESA-5SI#S0
R1LV5256ESA-7SR#S0
R1LV5256ESA-7SI#S0
Access
time
55 ns
Temperature
Range
0 ~ +70°C
-40 ~ +85°C
0 ~ +70°C
-40 ~ +85°C
0 ~ +70°C
-40 ~ +85°C
0 ~ +70°C
-40 ~ +85°C
0 ~ +70°C
-40 ~ +85°C
0 ~ +70°C
-40 ~ +85°C
0 ~ +70°C
-40 ~ +85°C
0 ~ +70°C
-40 ~ +85°C
PTSA0028ZA-A
(28P2C-A)
Embossed
tape
1000pcs/Reel
8mm×13.4mm 28-pin
plastic TSOP
(normal-bend type)
Tray
Max. 234pcs/Tray
Max. 1872pcs/Inner Box
450-mil 28-pin
plastic SOP
PRSP0028DB-B
(28P2W-C)
Tube
Max. 30pcs/Tube
Max. 300pcs/Inner Bag
Max. 1200pcs/Inner Box
Package
Shipping
Container
Quantity
70 ns
55 ns
Embossed
tape
1000pcs/Reel
70 ns
55 ns
70 ns
55 ns
70 ns
R10DS0068EJ0100 Rev.1.00
2011.04.13
Page 1 of
13
R1LV5256E Series
Pin Arrangement
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
Vcc
WE#
A13
A8
A9
A11
OE#
A10
CS#
DQ7
DQ6
DQ5
DQ4
DQ3
28-pin SOP
21
20
19
18
17
16
15
OE#
A11
A9
A8
A13
WE#
Vcc
A14
A12
A7
A6
A5
A4
A3
22
23
24
25
26
27
28
1
2
3
4
5
6
7
21
20
19
18
17
16
15
A10
CS#
DQ7
DQ6
DQ5
DQ4
DQ3
GND
DQ2
DQ1
DQ0
A0
A1
A2
28-pin TSOP
14
13
12
11
10
9
8
Pin Description
Pin name
Vcc
Vss
A0 to A14
DQ0 to DQ7
CS#
WE#
OE#
Power supply
Ground
Address input
Data input/output
Chip select
Write enable
Output enable
Function
R10DS0068EJ0100 Rev.1.00
2011.04.13
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13
R1LV5256E Series
Block Diagram
A
0
A
1
ADDRESS
BUFFER
ROW
DECODER
MEMORY ARRAY
32k-word x8-bit
A
14
DQ0
DQ
BUFFER
SENSE / WRITE AMPLIFIER
DQ1
DQ7
COLUMN DECODER
CLOCK
GENERATOR
WE#
CS#
Vcc
Vss
OE#
R10DS0068EJ0100 Rev.1.00
2011.04.13
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R1LV5256E Series
Operation Table
CS#
H
L
L
L
Note 1.
WE#
X
L
H
H
H: V
IH
L:V
IL
OE#
X
X
L
H
X: V
IH
or V
IL
DQ0~7
High-Z
Din
Dout
High-Z
Operation
Stand-by
Write
Read
Output disable
Absolute Maximum
Parameter
Power supply voltage relative to Vss
Terminal voltage on any pin relative to Vss
Power dissipation
Operation temperature
Storage temperature range
Storage temperature range under bias
Note
Symbol
Vcc
V
T
P
T
Topr
*3
Tstg
Tbias
*3
R Ver.
I Ver.
Value
-0.3 to +4.6
-0.3
*1
to Vcc+0.3
*2
0.7
R Ver.
0 to +70
I Ver.
-40 to +85
-65 to 150
0 to +70
-40 to +85
unit
V
V
W
°C
°C
°C
1. –3.0V for pulse
≤
30ns (full width at half maximum)
2. Maximum voltage is +4.6V.
3. Ambient temperature range depends on R/I-version. Please see table on page 1.
R10DS0068EJ0100 Rev.1.00
2011.04.13
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R1LV5256E Series
DC Operating Conditions
Parameter
Supply voltage
Input high voltage
Input low voltage
Ambient temperature range
Note
R Ver.
I Ver.
Symbol
Vcc
Vss
V
IH
V
IL
Ta
Min.
2.7
0
2.0
-0.3
0
-40
Typ.
3.0
0
-
-
-
-
Max.
3.6
0
Vcc+0.3
0.6
+70
+85
Unit
V
V
V
V
°C
°C
1
2
2
Note
1. –3.0V for pulse
≤
30ns (full width at half maximum)
2. Ambient temperature range depends on R/I-version. Please see table on page 1.
DC Characteristics
Parameter
Input leakage current
Output leakage current
Average operating current
Symbol
| I
LI
|
| I
LO
|
I
CC1
Min.
-
-
-
Typ.
-
-
14
Max.
1
1
25
Unit
μA
μA
mA
Test conditions
Vin = Vss to Vcc
CS# =V
IH
or OE# =V
IH
,
V
I/O
=Vss to Vcc
Min. cycle, duty =100%, I
I/O
= 0mA
CS# =V
IL
, Others = V
IH
/V
IL
Cycle =1μs, duty =100%, I
I/O
= 0mA
CS#
≤
0.2V,
V
IH
≥
Vcc-0.2V, V
IL
≤
0.2V
CS# =V
IH
,
Others = Vss to Vcc
Vin = Vss to Vcc
~+25°C
~+40°C
~+70°C
~+85°C
I
OH
= -0.5mA
I
OH
= -0.05mA
I
OL
= 1mA
CS#
≥
Vcc-0.2V
I
CC2
Standby current
Standby current
-
2
5
mA
I
SB
-
-
-
-
1
*1
-
-
-
-
-
-
0.33
2
3
8
10
-
-
0.4
mA
μA
μA
μA
μA
V
V
V
I
SB1
-
-
Output high voltage
V
OH
V
OH2
Output low voltage
Note
V
OL
2.4
Vcc
- 0.5
-
1. Typical parameter indicates the value for the center of distribution at 3.0V (Ta= 25ºC), and not 100% tested.
R10DS0068EJ0100 Rev.1.00
2011.04.13
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13
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