Sanyo LC3564RT-15LV Specifications
Ordering number: EN 4484B
Overview
The LC3564RM,RT are 8192-word × 8bit, asynchronous,
silicon gate, low-voltage CMOS SRAM LSIs.They operate from a 2.0 to 3.6V supply, making them ideal for handheld, battery-operated equipment.
They are fully CMOS devices employing 2-layer A1 wiring to realize high-speed access, low operating current
consumption and very low standby current. They incorporate control signal inputs; OE for high-speed memory
access, and 2 chip enables CE1 and CE2 for power-down
and device selection.
They are ideal for systems requiring high speed, low
power and battry backup or for easy mamory expansion.
The very low standby current means that backup can also
be achieved using a capacitor.
CMOS LSI
LC3564RM,RT-10LV/12LV/15LV
64K (8192 words × 8 bits) SRAM
■
Common-pin input/outputs, 3-state output
■
Clock not needed (fully-static RAM)
■
Package
• SOP 28-pin (450mil) plastic package: LC3564RM
series
• TSOP 28-pin (8 × 13.4mm) plastic package:
LC3564RT series
Package Dimensions
unit: mm
3158 - SOP28
[LC3564RM]
Features
■
Supply voltage range: 2.0 to 3.6V
• 3V operation: 2.7 to 3.6V
• Battery operation: 2.0 to 2.4V
■
High-speed access time
• 3V operation
- LC3564RM,RT-10LV: 100ns (max)
- LC3564RM,RT-12LV: 120ns (max)
- LC3564RM,RT-15LV: 150ns (max)
• Battery operation
- LC3564RM,RT-10LV: 200ns (max)
- LC3564RM,RT-12LV: 250ns (max)
- LC3564RM,RT-15LV: 300ns (max)
■
Very-low standby current
• 3V operation
-Ta ≤ 70 ° C: 1.0 µ A
-Ta ≤ 85 ° C: 3.0 µ A
• Battery operation
-Ta ≤ 70 ° C: 0.85 µ A
-Ta ≤ 85 ° C: 2.5 µ A
■
Operating temperature range: –40 to +85 ° C
unit: mm
3221 - TSOP28
[LC3564RT]
■
Data retention supply voltage: 2.0 to 3.6V
■
Input/output levels: CMOS Compatible (0.8Vcc/0.2Vcc)
■
3 control inputs (OE, CE1, CE2)
SANYO Electric Co., Ltd. Semiconductor Business Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
60597HA(ID) / 50995TH(ID) / D2293JN No. 4484—1/10
Pin Assignment
LC3564RM,RT-10LV/12LV/15LV
Block Diagram
No. 4484—2/10
−
−
−
°
−
° C
LC3564RM,RT-10LV/12LV/15LV
Pin Functions
Number Name Function
1 NC No connection
2 to 10, 21, 23 to 25 A0 to A12 Address inputs
27 WE
Read/write control input
22 OE Output enable input
20, 26 CE1, CE2 Chip enable inputs
11 to 13, 15 to 19 I/O1 to I/O8 Data input/outputs
28, 14 V
, GND Supply and ground pins
CC
T ruth T able
Mode CE1
Read cycle L H L H Data output I
Write cycle L H X L Data input I
Output disable L H H H High impedance I
No selection
CE2 OE WE1 I/O Supply current
H X X X High impedance I
X L X X High impedance I
CCA
CCA
CCA
CCS
CCS
Note: X = H or L
Specifications
Absolute Maximum Ratings
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V
Input voltage range V
Input/output voltage range V
Operating temperature range T
Storage temperature range T
Note: Permanent device damage may occur if Absolute Maximum Ratings are exceeded. Functional operation should be restricted to Recommended operating condi-
tions. Exposure to higher than recommended voltages for extended periods of time could affect device reliability.
at Ta = 25 ° C
CC max
IN
I/O
opr
stg
0.3 to V
0.3 to V
55 to +125
CC
CC
40 to +85
4.6 V
+ 0.3 V
+ 0.3 V
C
Inout/Output Capacitance
at Ta = 25 ° C, f = 1 MHz
Parameter Symbol Conditions
Input/output pin capacitance C
Input pin capacitance C
Note: Measured samples only.
I/O
Ratings
min. typ. max.
V
= 0V - 6 10 pF
I/O
V
I
= 0V - 6 10 pF
I
Unit
No. 4484—3/10
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