SANYO LC36256AML-85, LC36256AML-70, LC36256AML-12, LC36256AML-10, LC36256AL-12 Datasheet
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Ordering number : EN4163A
22896HA (OT)/21593JN (OT) No. 4163-1/7
Overview
The LC36256AL, AML are fully asynchronous silicon
gate CMOS static RAMs with an 32768 words × 8 bits
configuration.
This series have CE chip enable pin for device
select/nonselect control and an OE output enable pin for
output control, and features high speed as well as low
power dissipation.
For these reasons, the series is especially suited for use in
systems requiring high speed, low power, and battery
backup, and it is easy to expand memory capacity.
Features
• Access time
70 ns (max.) : LC36256AL-70, LC36256AML-70
85 ns (max.) : LC36256AL-85, LC36256AML-85
100 ns (max.) : LC36256AL-10, LC36256AML-10
120 ns (max.) : LC36256AL-12, LC36256AML-12
• Low current dissipation
During standby
2 µA (max.) / Ta = 25°C
5 µA (max.) / Ta = 0 to +40°C
25 µA (max.) / Ta = 0 to +70°C
During data retention
1 µA (max.) / Ta = 25°C
2 µA (max.) / Ta = 0 to +40°C
10 µA (max.) / Ta = 0 to +70°C
During operation (DC)
10 mA (max.)
• Single 5 V power supply: 5 V ±10%
• Data retention power supply voltage: 2.0 to 5.5 V
• No clock required (Fully static memory)
• All input/output levels are TTL compatible
• Common input/output pins, with three output states
• Packages
DIP 28 -pin (600 mil) plastic package : LC36256AL
SOP 28-pin (450 mil) plastic package : LC36256AML
Package Dimensions
unit: mm
3012A - DIP28
unit : mm
3187 - SOP28D
SANYO: DIP28
[LC36256AL]
SANYO: SOP28D
[LC36256AML]
LC36256AL, AML-70/85/10/12
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-0005 JAPAN
256 K (32768 words × 8 bits) SRAM
Asynchronous Silicon Gate CMOS LSI
LC36256AL, AML-70/85/10/12
No. 4163-2/7
Pin Assignment Block Diagram
Functions
Mode CE OE WE I/O Supply current
Read cycle L L H Data output I
CCA
Write cycle L X L Data input I
CCA
Output disable L H H High impedance I
CCA
Nonselect H X X High impedance I
CCS
X : H or L
Pin Functions
A0 to A14 Address input
WE Read/write control input
OE Output enable input
CE Chip enable input
I/O1 to I/O8 Data input/output
VCC, GND Power supply pins
Specifications
Absolute Maximum Ratings at Ta=25°C
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V
CC max 7.0 V
Input pin voltage V
IN –0.5* to VCC+0.5 V
I/O pin voltage V
I/O –0.5* to VCC+0.5 V
Allowable power dissipation Pd max
LC36256AL 1.0 W
LC36256AML 0.7 W
Operating temperature range Topr 0 to +70 °C
Storage temperature range Tstg –55 to +150 °C
* –3.0 V when pulse width is less than 50 ns
DC Recommended Operating Ranges at Ta = 0 to +70°C
Parameter Symbol min typ max Unit
Power supply voltage V
CC 4.5* 5.0 5.5 V
Input high level voltage V
IH 2.2* VCC+0.3 V
Input low level voltage V
IL –0.3* +0.8 V
* –3.0 V when pulse width is less than 50 ns
DC Electrical Characteristics at Ta = 0 to +70°C, VCC = 5 V ±10%
Parameter Symbol Conditions min typ* max Unit
Input leakage current I
LI VIN = 0 to VCC –0.5 +0.5 µA
I/O leakage current I
LO
VCE = VIH or VOE = VIH,
–0.5 +0.5 µA
V
I/O = 0 to VCC
Output high level voltage
VOH IOH = –1.0mA 2.4 V
Output low level voltage VOL IOL = 2.1mA 0.4 V
Operating supply
I
CCA1
VCE ≤ 0.2V,
1 5 mA
current (DC)
V
IN ≤ 0.2V or VIN ≥ VCC–0.2V
I
CCA2 VCE = VIL, II/O=0mA 3 10 mA
min cycle
70ns 30 50
Average operating
I
CCA3 Duty = 100%
85ns 25 50
mA
supply current
I
I/O
= 0mA
100ns 23 50
120ns 20 50
0 to +70°C
25
Standby supply
I
CCS1 V
CE ≥VCC
-0.2V
0 to +40°C
5 µA
current
25°C 0.5 2
I
CCS2 VCE = VIH 0.4 2 mA
* Reference values at V
CC = 5 V, Ta = 25°C
LC36256AL, AML-70/85/10/12
No. 4163-3/7
Access
time
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