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PDF LH5P1632 Data sheet ( Hoja de datos )
| Número de pieza | LH5P1632 | |
| Descripción | CMOS 512K (32K x 16) Pseudo-Static RAM | |
| Fabricantes | Sharp Electrionic Components | |
| Logotipo |  |
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LH5P1632
CMOS 512K (32K × 16) Pseudo-Static RAM
FEATURES
• 32,768 × 16 bit organization
• Access time: 80/150 ns (MAX.)
• Cycle time: 140/210 ns (MIN.)
• Single +5 V power supply
• Power consumption (MAX.):
Operating: 467.5/327.5 mW
Standby: 16.5 mW
• TTL compatible I/O
• 256 refresh cycles/4 ms (MAX.)
• Available for auto-refresh mode
• Packages:
40-pin, 600-mil DIP
40-pin, 525-mil SOP
DESCRIPTION
The LH5P1632 is a 512K-bit Pseudo-Static RAM
organized as 32,768 × 16 bits. It is fabricated using
silicon-gate CMOS process technology.
PIN CONNECTIONS
40-PIN DIP
40-PIN SOP
TOP VIEW
GND
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
I/O8
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40 VCC
39 UWR
38 LWR
37 A10
36 A11
35 A12
34 A13
33 A14
32 UOE/TEST1
31 LOE/RFSH
30 CE
29 I/O16
28 I/O15
27 I/O14
26 I/O13
25 I/O12
24 I/O11
23 I/O10
22 I/O9
21 VCC
5P1632-1
Figure 1. Pin Connections for DIP and
SOP Packages
1
1 page  
CMOS 512K (32K × 16) Pseudo-Static RAM
LH5P1632
TRUTH TABLE
INPUT
CE UOE LOE/RFSH
HD
LL
LH
LL
D
L
L
H
LH
LD
H
D
LD
LH
H
D
LD
LL
HD
L
D
NOTES:
D = Don’t care.
High-Z = High impedance.
UWR
D
H
H
H
H
L
L
H
L
H
D
LWR
D
H
H
H
H
L
H
L
H
L
D
OUTPUT
I/O9 – I/O16
I/O1 – I/O8
High-Z
High-Z
DOUT
High-Z
DOUT
High-Z
DOUT
DOUT
High-Z
High-Z
DIN
DIN
High-Z
DIN
DOUT
High-Z
DIN
High-Z
DIN
DOUT
DIN
High-Z
MODE
UPPER BYTE
LOWER BYTE
Standby
Read
Read
CE only refresh
Read
Read
CE only refresh
CE only refresh CE only refresh
Write
Write
Write
CE only refresh
CE only refresh
Write
Write
Read
Read
Write
Auto Refresh
NOTE
Inhibit
Inhibit
CE
VIH
VIL
A0 - A14
VIH
VIL
LOE/RFSH VIH
UOE
VIL
LWR VIH
UWR VIL
I/O1
-
I/O16
VOH
VOL
tRC
tP tCE
tP
tAS tAH
ADDRESS
INPUT
tOEH
tOEL
tOES
tRCS
tRCH
tCEA
tOEA
tOLZ
tCLZ
tCHZ
tOHZ
VALID-DATA
OUTPUT
Figure 4. Read Cycle
5P1632-3
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet LH5P1632.PDF ] | |
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