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LP62S2048X-70LLI Datasheet

  • LP62S2048X-70LLI

  • 256K X 8 BIT LOW VOLTAGE CMOS SRAM

  • 17頁

  • AMICC

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LP62S2048-I Series
256K X 8 BIT LOW VOLTAGE CMOS SRAM
Features
n
Power supply range: 2.7V to 3.3V
n
Access times: 70/100 ns (max.)
n
Current:
Low power version:
Operating: 30mA (max.)
Standby: 50碌A (max.)
Very low power version: Operating: 30mA (max.)
Standby: 10碌A (max.)
n
Full static operation, no clock or refreshing required
n
All inputs and outputs are directly TTL-compatible
n
Common I/O using three-state output
n
Output enable and two chip enable inputs for easy
application
n
Data retention voltage: 2V (min.)
n
Available in 32-pin SOP, TSOP, TSSOP (8 X 13.4mm)
and 36-pin CSP packages
General Description
The LP62S2048-I is a low operating current 2,097,152-bit
static random access memory organized as 262,144
words by 8 bits and operates on a low power supply
range: 2.7V to 3.3V. It is built using AMIC's high
performance CMOS process.
Inputs and three-state outputs are TTL compatible and
allow for direct interfacing with common system bus
structures.
Two chip enable inputs are provided for POWER-DOWN
and device enable and an output enable input is included
for easy interfacing.
Data retention is guaranteed at a power supply voltage
as low as 2V.
Pin Configurations
n
SOP
n
TSOP/(TSSOP)
n
CSP (Chip Size Package)
36-pin Top View
A17
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O
1
I/O
2
I/O
3
GND
1
2
3
4
5
32
31
30
29
28
VCC
A15
CE2
WE
A13
A8
A9
A11
OE
A10
CE1
I/O
8
I/O
7
I/O
6
I/O
5
I/O
4
17
32
H
A9
A10
A11
A12
A13
A14
1
2
A1
A2
3
CE2
WE
NC
4
A3
A4
A5
5
A6
A7
6
A8
I/O
1
I/O
2
VCC
GND
NC
OE
CE1
A17
A16
A15
I/O
3
I/O
4
16
1
LP62S2048V-I
(LP62S2048X-I)
6
7
8
9
10
11
12
13
14
15
16
27
26
25
24
23
22
21
20
19
18
17
A
B
C
D
E
F
G
A0
I/O
5
I/O
6
GND
VCC
I/O
7
I/O
8
(August, 2001, Version 1.0)
LP62S2048M-I
Pin No.
Pin
Name
Pin No.
Pin
Name
1
A11
17
A3
2
A9
18
A2
3
A8
19
A1
4
A13
20
A0
5
WE
21
I/O
1
6
CE2
22
I/O
2
7
A15
23
I/O
3
8
VCC
24
GND
9
A17
25
I/O
4
10
A16
26
I/O
5
11
A14
27
I/O
6
12
A12
28
I/O
7
13
A7
29
I/O
8
14
A6
30
CE1
15
A5
31
A10
16
A4
32
OE
1
AMIC Technology, Inc.

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