AK5364096W Datasheet, PDF (1/2 Pages) ACCUTEK MICROCIRCUIT CORPORATION – 4,194,304 Word by 36 Bit CMOS Dynamic Random Access Memory

Accutek
Microcircuit
Corporation
AK5364096W
4,194,304 Word by 36 Bit CMOS
Dynamic Random Access Memory
DESCRIPTION
The Accutek AK5364096W high density memory module is a
CMOS Dynamic RAM organized in 4096K x 36 bit words. The mod-
ule consists of eight standard 4 Meg x 4 DRAMs and four 4 Meg x 1
DRAMs in plastic SOJ packages. The 4 Meg x 4 DRAMs are
mounted on the front surface and the 4 Meg x 1 parity DRAMs are
+
mounted on the back surface of a printed circuit board with a low
profile height of only 0.875" in a 72 pin leadless SIM configuration.
+
This configuration allows socket-mounting of large quantities of
1
72
memory in applications where high density and ease of inserting ad-
ditional memory are important.
The operation of the AK5364096W is identical to eight 4Meg x 4
plus four 4Meg x 1 DRAMs. There are four CAS lines and two RAS
lines. Independent byte control is accomplished by four CAS lines.
Each separate CAS line controls two 4Meg x 4 DRAMs, along with a
4Meg x 1 DRAM with data in tied to data out to form a 9 bit byte. The
bank of 36 bits is controlled by the two RAS lines. An eighteen bit
data path can be produced by connecting DQ₀ to DQ₁₈, DQ₁ to
DQ₁₉, etc. and alternately strobing RAS₀ with RAS₂.
FEATURES
· 4,194,304 x 36 bit organization
· Low profile board height of 0.875 inch
· 72 pad Single In-Line Module
· Multiple CAS and RAS lines allow x18 or x36 bit widths
· Power:
7.92 Watt Max Active (60nS)
6.60 Watt Max Active (70 nS)
66 mW Max Standby
· CAS-before-RAS, RAS-only or hidden refresh
· Single 5 Volt Power Supply
· 2048 Refresh Cycles, 32 mSEC
· Available in Fast Page Mode, EDO and Static Column Mode
· Available in leadless SIM or leaded ZIP versions
· Downward compatible with AK5362048W, AK5361024W,
AK536512W and AK536256W
· Upward compatible with AK5368192W
· Operating free air temperature 0⁰C to 70⁰C
EXAMPLE
AK5364096WP-70
4Meg x 36 CMOS Dynamic RAM, SIM, Page Mode, Commercial
70nSEC Access Time
PIN NOMENCLATURE
PIN ASSIGNMENT
A0 - A10
DQ0 - DQ35
CAS0 - CAS3
RAS0, RAS2
WE
OE
PD1 - PD4
Vcc
Vss
NC
Address Inputs
Data In/Data Out
Column Address Strobe
Row Address Strobe
Write Enable
Output Enable
Presence Detect
5v Supply
Ground
No Connect
MODULE OPTIONS
Leadless SIM: AK5364096W
Leaded ZIP: AK5364096Z
PIN #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
SYMBOL
Vss
DQ0
DQ18
DQ1
DQ19
DQ2
DQ20
DQ3
DQ21
Vcc
NC
A0
A1
A2
A3
A4
A5
A6
Presence Detect -
-60
PD1
Vss
PD2
NC
PD3
NC
PD4
Nc
PIN #
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
-70
Vss
NC
Vss
NC
SYMBOL
A10
DQ4
DQ22
DQ5
DQ23
DQ6
DQ24
DQ7
DQ25
A7
NC
Vcc
A8
A9
NC
RAS2
DQ26
DQ8
PIN #
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
SYMBOL
DQ17
DQ35
Vss
CAS0
CAS2
CAS3
CAS1
RAS0
NC
NC
WE
NC
DQ9
DQ27
DQ10
DQ28
DQ11
DQ29
PIN #
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
SYMBOL
DQ12
DQ30
DQ13
DQ31
Vcc
DQ32
DQ14
DQ33
DQ15
DQ34
DQ16
NC
PD1
PD2
PD3
PD4
NC
Vss