LP62E16256E-T Series
256K X 16 BIT LOW VOLTAGE CMOS SRAM
Features
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Operating voltage: 1.65V to 2.2V
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Access times: 70ns (max.)
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Current:
Very low power version: Operating: 30mA (max.)
Standby:
10µA (max.)
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Full static operation, no clock or refreshing required
All inputs and outputs are directly TTL-compatible
Common I/O using three-state output
Data retention voltage: 1.2V (min.)
Available in 44-pin TSOP and 48-ball CSP packages
General Description
The LP62E16256E-T is a low operating current
4,194,304-bit static random access memory organized as
262,144 words by 16 bits and operates on low power
voltage from 1.65V to 2.2V. 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.
The chip enable input is provided for POWER-DOWN,
device enable. Two byte enable inputs and an output
enable input are included for easy interfacing.
Data retention is guaranteed at a power supply voltage
as low as 1.2V.
Product Family
Product Family
Operating
Temperature
-25°C ~ +85°C
Power Dissipation
VCC Range
Speed
Data Retention
(I
CCDR
, Typ.)
0.2µA
Standby
(I
SB1
, Typ.)
1.4µA
Operating
(I
CC2
, Typ.)
2mA
Package
Type
44L TSOP
48B CSP
LP62E16256E
1.65V~2.2V
70ns
1. Typical values are measured at VCC = 2.0V, T
A
= 25°C and not 100% tested.
2. Data retention current VCC = 1.2V.
Pin Configurations
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TSOP
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CSP (Chip Size Package)
48-pin Top View
A4
A3
A2
A1
A0
CE
I/O
1
I/O
2
I/O
3
I/O
4
VCC
GND
I/O
5
I/O
6
I/O
7
I/O
8
WE
A17
A16
A15
A14
A13
1
2
3
4
44
43
42
41
A5
A6
A7
OE
HB
LB
I/O
16
I/O
15
I/O
14
I/O
13
GND
VCC
I/O
12
I/O
11
I/O
10
I/O
9
NC
A8
A9
A10
A11
A12
1
A
B
C
D
E
F
G
H
LB
I/O
9
I/O
10
GND
VCC
I/O
15
I/O
16
NC
2
OE
HB
I/O
11
I/O
12
I/O
13
I/O
14
NC
A8
3
A0
A3
A5
A17
NC
A14
A12
A9
4
A1
A4
A6
A7
A16
A15
A13
A10
5
A2
CE
I/O
2
I/O
4
I/O
5
I/O
6
WE
A11
6
NC
I/O
1
I/O
3
VCC
GND
I/O
7
I/O
8
NC
LP62E16256EV-T
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
PRELIMINARY
(July, 2002, Version 0.0)
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AMIC Technology, Inc.
AMICC [ AMIC TECHNOLOGY ]
