DATA SHEET
MOS INTEGRATED CIRCUIT
µ
PD442000L-X
2M-BIT CMOS STATIC RAM
256K-WORD BY 8-BIT
EXTENDED TEMPERATURE OPERATION
Description
The
µ
PD442000L-X is a high speed, low power, 2,097,152 bits (262,144 words by 8 bits) CMOS static RAM.
The
µ
PD442000L-X has two chip enable pins (/CE1, CE2) to extend the capacity. And battery backup is available.
B, C and D versions are low voltage versions.
5
The
µ
PD442000L-X is packed in 32-pin plastic TSOP (I) (8
×
13.4 mm) and (8
×
20 mm).
Features
•
262,144 words by 8 bits organization
5
•
Fast access time : 70, 85, 100, 120, 150, 180 ns (MAX.)
•
Low voltage operation
(B version : V
CC
= 2.7 to 3.6 V, C version : V
CC
= 2.2 to 3.6 V, D version : V
CC
= 1.8 to 3.6 V)
•
Low V
CC
data retention : 1.5 V (MIN.)
•
Operating ambient temperature : T
A
= –25 to +85 °C
•
Output Enable input for easy application
•
Two Chip Enable inputs : /CE1, CE2
Part number
Access time
ns (MAX.)
Operating supply Operating ambient
voltage
V
temperature
°C
−25
to +85
At operating
mA (MAX.)
35
30
25
Supply current
At standby
At data retention
µ
A (MAX.)
2
µ
A (MAX.)
2
µ
PD442000L-BxxX
µ
PD442000L-CxxX
5
70
Note
, 85, 100
100, 120, 150
150, 180
2.7 to 3.6
2.2 to 3.6
1.8 to 3.6
µ
PD442000L-DxxX
Note
Under development
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. M12509EJ7V0DSJ1 (7th edition)
Date Published December 2000 NS CP (K)
Printed in Japan
The mark
•
shows major revised points.
©
1997
µ
PD442000L-X
5
Ordering Information
Part number
Package
Access time
ns (MAX.)
Operating
supply voltage
V
Operating
temperature
°C
−25
to +85
B version
Remark
µ
PD442000LGU-B70X-9JH
Note
µ
PD442000LGU-B85X-9JH
µ
PD442000LGU-B10X-9JH
µ
PD442000LGU-B70X-9KH
µ
PD442000LGU-B85X-9KH
µ
PD442000LGU-B10X-9KH
µ
PD442000LGZ-B70X-KJH
Note
µ
PD442000LGZ-B85X-KJH
µ
PD442000LGZ-B10X-KJH
µ
PD442000LGZ-B70X-KKH
µ
PD442000LGZ-B85X-KKH
µ
PD442000LGZ-B10X-KKH
µ
PD442000LGU-C10X-9JH
µ
PD442000LGU-C12X-9JH
µ
PD442000LGU-C15X-9JH
µ
PD442000LGU-C10X-9KH
µ
PD442000LGU-C12X-9KH
µ
PD442000LGU-C15X-9KH
µ
PD442000LGZ-C10X-KJH
µ
PD442000LGZ-C12X-KJH
µ
PD442000LGZ-C15X-KJH
µ
PD442000LGZ-C10X-KKH
µ
PD442000LGZ-C12X-KKH
µ
PD442000LGZ-C15X-KKH
µ
PD442000LGU-D15X-9JH
µ
PD442000LGU-D18X-9JH
µ
PD442000LGU-D15X-9KH
µ
PD442000LGU-D18X-9KH
µ
PD442000LGZ-D15X-KJH
µ
PD442000LGZ-D18X-KJH
µ
PD442000LGZ-D15X-KKH
µ
PD442000LGZ-D18X-KKH
Note
Note
32-pin Plastic TSOP (I)
(8×13.4) (Normal bent)
70
85
100
2.7 to 3.6
32-pin Plastic TSOP (I)
(8×13.4) (Reverse bent)
70
85
100
32-pin Plastic TSOP (I)
(8×20) (Normal bent)
70
85
100
32-pin Plastic TSOP (I)
(8×20) (Reverse bent)
70
85
100
32-pin Plastic TSOP (I)
(8×13.4) (Normal bent)
100
120
150
2.2 to 3.6
C version
32-pin Plastic TSOP (I)
(8×13.4) (Reverse bent)
100
120
150
32-pin Plastic TSOP (I)
(8×20) (Normal bent)
100
120
150
32-pin Plastic TSOP (I)
(8×20) (Reverse bent)
100
120
150
32-pin Plastic TSOP (I)
(8×13.4) (Normal bent)
32-pin Plastic TSOP (I)
(8×13.4) (Reverse bent)
32-pin Plastic TSOP (I)
(8×20) (Normal bent)
32-pin Plastic TSOP (I)
(8×20) (Reverse bent)
150
180
150
180
150
180
150
180
1.8 to 3.6
D version
Note
Under development
2
Data Sheet M12509EJ7V0DS
µ
PD442000L-X
Pin Configurations (Marking Side)
/xxx indicates active low signal.
32-pin Plastic TSOP (I) (8×13.4) (Normal bent)
×
[
µ
PD442000LGU-BxxX-9JH ]
[
µ
PD442000LGU-CxxX-9JH ]
[
µ
PD442000LGU-DxxX-9JH ]
32-pin Plastic TSOP (I) (8×20) (Normal bent)
×
[
µ
PD442000LGZ-BxxX-KJH ]
[
µ
PD442000LGZ-CxxX-KJH ]
[
µ
PD442000LGZ-DxxX-KJH ]
5
A11
A9
A8
A13
/WE
CE2
A15
V
CC
A17
A16
A14
A12
A7
A6
A5
A4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
/OE
A10
/CE1
I/O8
I/O7
I/O6
I/O5
I/O4
GND
I/O3
I/O2
I/O1
A0
A1
A2
A3
A0 - A17
I/O1 - I/O8
/CE1, CE2
/WE
/OE
V
CC
GND
: Address inputs
: Data inputs / outputs
: Chip Enable 1, 2
: Write Enable
: Output Enable
: Power supply
: Ground
Remark
Refer to
Package Drawings
for the 1-pin index mark.
Data Sheet M12509EJ7V0DS
3
µ
PD442000L-X
32-pin Plastic TSOP (I) (8×13.4) (Reverse bent)
×
[
µ
PD442000LGU-BxxX-9KH ]
[
µ
PD442000LGU-CxxX-9KH ]
[
µ
PD442000LGU-DxxX-9KH ]
32-pin Plastic TSOP (I) (8×20) (Reverse bent)
×
[
µ
PD442000LGZ-BxxX-KKH ]
[
µ
PD442000LGZ-CxxX-KKH ]
[
µ
PD442000LGZ-DxxX-KKH ]
5
/OE
A10
/CE1
I/O8
I/O7
I/O6
I/O5
I/O4
GND
I/O3
I/O2
I/O1
A0
A1
A2
A3
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
A11
A9
A8
A13
/WE
CE2
A15
V
CC
A17
A16
A14
A12
A7
A6
A5
A4
A0 - A17
I/O1 - I/O8
/CE1, CE2
/WE
/OE
V
CC
GND
: Address inputs
: Data inputs / outputs
: Chip Enable 1, 2
: Write Enable
: Output Enable
: Power supply
: Ground
Remark
Refer to
Package Drawings
for the 1-pin index mark.
4
Data Sheet M12509EJ7V0DS
µ
PD442000L-X
Block Diagram
A0
A17
Address
buffer
Row
decoder
Memory cell array
2,097,152 bits
I/O1
Input data
controller
I/O8
Sense amplifier /
Switching circuit
Column decoder
Output data
controller
Address buffer
/CE1
CE2
/OE
/WE
V
CC
GND
Truth Table
/CE1
H
×
L
L
L
CE2
×
L
H
H
H
/OE
×
×
H
L
×
/WE
×
×
H
H
L
Mode
Not selected
Not selected
Output disable
Read
Write
I/O
High impedance
High impedance
High impedance
D
OUT
D
IN
I
CCA
Supply current
I
SB
Remark
×
: V
IH
or V
IL
Data Sheet M12509EJ7V0DS
5
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