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PDF AK5322048BW Data sheet ( Hoja de datos )
| Número de pieza | AK5322048BW | |
| Descripción | 2097152 Word by 32 Bit CMOS Dynamic Random Access Memory | |
| Fabricantes | ACCUTEK | |
| Logotipo |  |
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ACCUTEK
MICROCIRCUIT CORPORATION
DESCRIPTION
The Accutek AK5322048BW high density memory module is a
CMOS dynamic RAM organized in 2048K x 32 bit words. The mod-
ule consists of four standard 1 Meg x 16 bits DRAMs in plastic SOJ
packages. The assembly has two DRAMs mounted on each side of
a printed circuit board in a 72 pad leadless SIM configuration.
This configuration allows socket-mounting of large quantities of
memory in applications where high density and ease of inserting ad-
ditional memory are important.
The operation of the AK5322048BW is identical to sixteen 1 Meg x 4
DRAMs. There are four CAS lines and two RAS lines. On each
bank of 1M x 32, independent byte control is accomplished by four
CAS lines. Each seperate CAS line controls one byte of the 1 Meg x
16 DRAM.
FEATURES
· 2,097,152 x 32 bit organization
· 72 pad Single In-Line Module
· CAS-before-RAS, RAS-only or hidden refresh
· Operating free air temperature 0oC to 70oC
· Single 5 Volt Power Supply
· 1024 Refresh Cycles, 16 mSEC
· Available in Fast Page Mode or EDO
AK5322048BW
2,097,152 Word by 32 Bit CMOS
Dynamic Random Access Memory
+
1
+
72
· Power:
3.96 Watt Max Active (50nS)
3.52 Watt Max Active (60 nS)
3.08 Watt Max Active (70 nS)
44 mW Max Standby
· Downward compatible with AK5321024W, AK532512W and
AK532256W
· Upward compatible with AK5324096W and AK5328192W
ADDITIONAL OPTIONS AVAILABLE
1 Meg x 32 version, AK5321024BW
1 Meg x 36 version, AK5361024BW
2 Meg x 36 version, AK5362048BW
PIN NOMENCLATURE
A0 - A9
DQ0 - DQ35
WE
RAS0 - RAS3
CAS0 - CAS3
PD1 - PD4
Vss
Vcc
NC
Address Inputs
Data In/Data Out
Write Enable
Row Address Strobe
Column Address Strobe
Presence Detect
Ground
5v Supply
No Connect
MODULE OPTIONS
Leadless SIM: AK5322048BW
PIN ASSIGNMENT
PIN #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
SYMBOL
Vss
DQ0
DQ16
DQ1
DQ17
DQ2
DQ18
DQ3
DQ19
Vcc
NC
A0
A1
A2
A3
A4
A5
A6
Presence Detect
PD1
PD2
PD3
PD4
-50
NC
VC
Vss
Vss
PIN #
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
SYMBOL
NC
DQ4
DQ20
DQ5
DQ21
DQ6
DQ22
DQ7
DQ23
A7
NC
Vcc
A8
A9
RAS3
RAS2
NC
NC
-60 -70
NC NC
NC NC
NC Vss
NC NC
PIN #
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
SYMBOL
NC
NC
Vss
CAS0
CAS2
CAS3
CAS1
RAS0
RAS1
NC
WE
NC
DQ8
DQ24
DQ9
DQ25
DQ10
DQ26
PIN #
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
SYMBOL
DQ11
DQ27
DQ12
DQ28
Vcc
DQ29
DQ13
DQ30
DQ14
DQ31
DQ15
NC
PD1
PD1
PD3
PD4
NC
Vss
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