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8F32256C 데이터시트 PDF




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부품번호 8F32256C 기능
기능 EDI8F32256C
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8F32256C 데이터시트, 핀배열, 회로
EDI8F32256C
256Kx32 SRAM Module
Features
www.DataSheet4U.com
256Kx32 bit CMOS Static
Random Access Memory
• Access Times
BiCMOS: 10 and 12ns
CMOS: 15, 20, 25, and 35ns
• Individual Byte Selects
• Fully Static, No Clocks
• TTL Compatible I/O
High Density Package with JEDEC Standard Pinouts
• 64 Pin ZIP, No. 85
• 64 Lead Angled SIMM, No. 32
• 64 Lead SIMM, No. 333
• 64 ZIP Low Profile, No. 188
• Common Data Inputs and Outputs
Single +5V (±10%) Supply Operation
Pin Configurations and Block Diagram
PD1 2
DQØ 4
DQ1 6
DQ2 8
DQ3 10
VCC 12
A7 14
A8 16
A9 18
DQ4 20
DQ5 22
DQ6 24
DQ7 26
W 28
A14 30
EØ 32
E2
A16
VSS
DQ16
DQ17
DQ18
DQ19
A10
A11
A12
A13
DQ20
DQ21
DQ22
DQ23
VSS
34
36
38
40
42
44
46
48
50
52
54
56
58
60
62
64
1 VSS
3 PD2
5 DQ8
7 DQ9
9 DQ10
11 DQ11
13 AØ
15 A1
17 A2
19 DQ12
21 DQ13
23 DQ14
25 DQ15
27 VSS
29 A15
31 E1
33 E3
35 A17
37 G
39 DQ24
41 DQ25
43 DQ26
45 DQ27
47 A3
49 A4
51 A5
53 VCC
55 A6
57 DQ28
59 DQ29
61 DQ30
63 DQ31
64 Pin
PD1 - VSS
PD2 - VSS
256Kx32 Static RAM
CMOS, High Speed Module
The EDI8F32256C is a high speed 8 megabit Static RAM
module organized as 256K words by 32 bits. This module is
constructed from eight 256Kx4 Static RAMs in SOJ packages
on an epoxy laminate (FR4) board.
Four chip enables (EØ-E3) are used to independently enable
the four bytes. Reading or writing can be executed on
individual bytes or any combination of multiple bytes through
proper use of selects.
The EDI8F32256C is offered in 64 pin ZIP/SIMM package
which enables eight megabits of memory to be placed in less
than 1.4 square inches of board space.
All inputs and outputs are TTL compatible and operate from a
single 5V supply. Fully asynchronous circuitry requires no
clocks or refreshing for operation and provides equal access
and cycle times for ease of use.
The ZIP and SIMM modules contain two pins, PD1 and PD2,
which are used to identify module memory density in applica-
tions where alternate modules can be interchanged.
Pin Names
AØ-A17
EØ-E3
W,
G
DQØ-DQ31
VCC
VSS
W
G
E1
E2
E3
Address Inputs
Chip Enables
Write Enables
Output Enable
Common Data Input/Output
Power (+5V±10%)
Ground
DQØ-DQ3
4
4 DQ8-DQ11
4 DQ16-DQ19
DQ24-DQ27
4
4 DQ4-DQ7
4 DQ12-DQ15
4 DQ20-DQ23
4 DQ28-DQ31
Electronic Designs, Inc.
• One Research Drive • Westborough, MA 01581USA • 508-366-5151 • FAX 508-836-4850 •
http://www.electronic-designs.com
1
EDI8F32256C Rev. 12 9/98 ECO #10816




8F32256C pdf, 반도체, 판매, 대치품
AC Characteristics Read Cycle
www.DataSheet4U.com
Parameter
Read Cycle Time
Address Access Time
Chip Enable Access
Chip Enable to Output in Low Z (1)
Chip Disable to Output in High Z (1)
Output Hold from Address Change
Output Enable to Output Valid
Output Enable to Output in Low Z (1)
Output Disable to Output in High Z(1)
Symbol
JEDEC Alt.
TAVAV TRC
TAVQV TAA
TELQV TACS
TELQX TCLZ
TEHQZ TCHZ
TAVQX TOH
TGLQV TOE
TGLQX TOLZ
TGHQZ TOHZ
Note 1: Parameter guaranteed, but not tested.
20ns
Min Max
20
20
20
3
10
3
13
0
8
25ns
Min Max
25
25
25
3
12
3
15
0
10
35ns
Min Max
35
35
35
3
15
3
20
0
12
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
Read Cycle 1 - W High, G, E Low
TAVAV
A ADDRESS 1
TAVQV
Q
ADDRESS 2
TAVQX
DATA 1
DATA 2
Read Cycle 2 - W High
g
A
TAVQV
E
TELQV
TELQX
G
TGLQV
TGLQX
Q
TAVAV
TEHQZ
TGHQZ
EDI8F32256C
256Kx32 SRAM Module
4
EDI8F32256C Rev. 12 9/98 ECO #10816

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8F32256C 전자부품, 판매, 대치품
Ordering Information
Part Number
www.DataSheet4U.com
BICMOS
EDI8G32256B10MNC
EDI8G32256B12MNC
CMOS
EDI8F32256C15MNC
EDI8F32256C20MNC
EDI8F32256C25MNC
EDI8F32256C35MNC
BICMOS
EDI8G32256B10MMC
EDI8G32256B12MMC
CMOS
EDI8F32256C15MMC
EDI8F32256C20MMC
EDI8F32256C25MMC
EDI8F32256C35MMC
Package Description
Package No. 32
64 Lead Angled SIMM
Speed
(ns)
10
12
15
20
25
35
10
12
15
20
25
35
EDI8F32256C
256Kx32 SRAM Module
Package
No.
32
32
32
32
32
32
Part Number.
BICMOS
EDI8F32256B10MZC
EDI8F32256B12MZC
CMOS
EDI8F32256C15MZC
EDI8F32256C20MZC
EDI8F32256C25MZC
EDI8F32256C35MZC
Speed
(ns)
10
12
15
20
25
35
Package
No.
85
85
85
85
85
85
333 Part Number.
333
Speed
(ns)
Package
No.
CMOS
333 EDI8F32257C20MZC
333 EDI8F32257C25MZC
333
20
25
188
188
333 NOTE: 1. For Gold SIMM change form EDI8F to EDI8G.
2. The BICMOS 10 & 12ns SIMMs available with Gold Contacts only.
3.855 MAX.
3.584
.250 P1
.050
1.845
R.062. (2x)
Package No. 85
64 Pin ZIP
.050
.050
.250
3.350
1.792
3.665
MAX.
.680
MAX.
.400
.125
MIN.
.360
MAX.
.225
MIN.
.580
MAX.
.360
MAX.
.165 .022
.135 .018
.250
TYP.
.050 .100
TYP. TYP. .175
.125
.100
TYP.
7
EDI8F32256C Rev. 12 9/98 ECO #10816

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8F32256C

EDI8F32256C

White Electronic Designs Corporation
White Electronic Designs Corporation

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