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72-Pin Flash SO-DIMM
Advanced†
8M X 32 Bits (32MB) 72-Pin Flash SO-DIMM (3.3V Only)
FEATURES
GENERAL DESCRIPTION
•
•
•
•
•
•
This SiliconTech product is a 8M x 32 bits flash Small Outline
Duel In-line Memory Module (SO-DIMM). This module consists
of eight 4M x 8 bits CMOS flash memory in Easy BGA packages
mounted on a 72-pin glass epoxy substrate. Decoupling
capacitors of 0.1µF are also mounted.
•
•
Access Time of 100ns and 120ns
TTL compatible inputs and outputs
3.3V only power supply
JEDEC standard components
Tin (option “T”) or gold (option “G”) edge connectors
Three power on reset options
- No power on reset: /RST tied to VCC
(Option “V”)
- Power on reset: /RST tied to power supervisor circuit
(Option “R”)
- System control of power on reset: /RST tied to pin 70
(Option “S”)
Intel Part Number RC28F320J3A flash memory
components
Minimum 3,200,000 total write/erase cycles
Option “T” provides tin edge connectors and option “G” provides
gold edge connectors. Option “R” provides power on reset
through a power supervisor circuit; option “S” provides system
control of power on reset by connecting the reset signals to Pin
70; and, option “V” provides no power on reset.
The module is intended for mounting into 72-pin SO-DIMM edge
connector sockets keyed for 3.3V power supply. The module
uses the standard programming algorithms for Intel
RC28F320J3A StrataFlash memory components.
Pin Functions
PIN CONFIGURATION
Pin Symbols
Pin Symbol
Pin Function
A0-A21
Address Inputs
Pin
Symbol
Pin
Symbol
Pin
Symbol
DQ0-DQ31
Data In/Out
1
VSS
25
DQ22
49
DQ8
/CE0, /CE1
Chip Enable
2
DQ0
26
DQ7
50
DQ24
/WE0, /WE1
Write Enable
3
DQ16
27
DQ23
51
DQ9
/OE
Output Enable
4
DQ1
28
A7
52
DQ25
PD1-PD3
Presence Detect
Reset
5
DQ17
29
A12
53
DQ10
/RST
6
DQ2
30
VCC
54
DQ26
VCC
Power (+3.3V)
7
DQ18
31
A8
55
DQ11
VSS
Ground
NC
Not Connected
8
DQ3
32
A9
56
DQ27
9
DQ19
33
A22*
57
DQ12
10
VCC
34
A23*
58
DQ28
11
A10
35
A13
59
VCC
12
A0
36
A14
60
DQ29
13
A1
37
A15
61
DQ13
14
A2
38
A16
62
DQ30
15
A3
39
VSS
63
DQ14
* Pin Connection Changing Available.
16
A4
40
/CE0
64
DQ31
Pin Locations
17
A5
41
A21
65
DQ15
18
A6
42
NC
66
A19
19
A11
43
/CE1
67
PD1
20
DQ4
44
/WE0
68
PD2
21
DQ20
45
/WE1
69
PD3
22
DQ5
46
A17
70
/RST
23
DQ21
47
/OE
71
A20
24
DQ6
48
A18
72
VSS
Presence Detect Pins*
Pin Name
PD1
PD2
PD3
Signal
TBD
TBD
TBD
Odd numbered pins
from pin 1 to pin 71
on front
Even numbered pins
from pin 2 to pin 72
on back
1
71
2
72
* Not Used.
† “Advanced” indicates that this product is in design engineering
and that it may or may not be moved into production.
Parameters may change.
Document Part Number 61000-01395-101 May 2000
Page 1
72-Pin Flash SO-DIMM
FUNCTIONAL BLOCK DIAGRAM
/RST
A0-A21
/OE
/CE0
/RP
/WE0
/CE1
DQ0-DQ7
A0-A21 /OE /CE0-2
/WE
/RP
/WE
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
A0-A21 /OE /CE0-2 DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ0-DQ7
/RP
/WE0
/WE
DQ8-DQ15
/RP
/WE
/WE1
/WE
/RP
/WE
A0-A21 /OE /CE0-2 DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
A0-A21 /OE /CE0-2 DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
/RP
/WE1
A0-A21 /OE /CE0-2 DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8-DQ15
DQ16-DQ23
DQ16-DQ23
/RP
A0-A21 /OE /CE0-2 DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
/WE
DQ24-DQ31
/RP
/WE
A0-A21 /OE /CE0-2 DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
A0-A21 /OE /CE0-2 DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ24-DQ31
VCC
• • • 0.1µF Capacitors
To all flash memory components
VSS
NOTE: /RST optionally tied to VCC,
pin 70 of module edge connector,
or a power supervisor circuit.
/BYTE of all flash memory
components is tied to VSS.
STS of all flash memory components
is tied to VCC through a pull-up resistor.
/CE0, /CE1, and /CE2 of all flash memory
components are tied together.
VPEN of all flash memory is tied to VCC.
Document Part Number 61000-01395-101 May 2000
Page 2
72-Pin Flash SO-DIMM
Units: Inches
PACKAGE DIMENSIONS
0.150 MAX
2.350
1.000
0.700
0.125
0.080
0.300
0.039±0.003
A
1.750
0.325
R 0.080
0.160
R 0.080
Detail of Part A
0.040
0.100
0.050
0.010
10 millionths minimum gold for DIMMs
ordered with gold lead option.
TBD
TOLERANCES: ±0.005 UNLESS OTHERWISE SPECIFIED
Document Part Number 61000-01395-101 May 2000
Page 3
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