IC438 Series
Specifications
Dual Inline Memory Module
(DIMM, 168 pins)
Part Number
(Details)
Insulation Resistance:
1,000M
W
min. at 500V DC
Dielectric Withstanding Voltage: 700V AC for 1 minute
Contact Resistance:
30m
W
max. at 10m /20mV max.
Operating Temperature Range: –55°C to +170°C
Mating Cycles:
10,000 insertions min.
Pin Count:
168 contact pins
IC-438
-
*
-
*
-
MF
Series No.
Positioning
Detail 1
(see Section "A")
Positioning
Detail 2
(see Section "B")
MF = Flanged
Unmarked = Not Flanged
Materials and Finish
Housing: Polyetherimide (PEI), glass-filled
Contacts: Beryllium Copper (BeCu)
Plating: Gold over Nickel
Features
í
Card thickness 1.27mm
í
7 different positioning indicators
í
Possible customer DIMM modules: Toshiba, NEC, OKI, Hitachi, Fujitsu, Siemens and Infineon
Outline Socket Dimensions
153.70±0.4
43.18±0.1
Recommended PC Board Layout
Top View from Socket
17.0
162.70±0.1
1.27±0.1
1.27x9=11.43 ±0.2
6.35±0.2
133.55
1.27x29=
36.83 ±0.2
1.27x29=36.83 ±0.1
1.27x43=54.61 ±0.2
6.35±0.2
1.27x9=11.43 ±0.1
+ 0.2
0
54.61±0.1
1.27x43=54.61 ±0.1
(6.35)
6.35±0.05
1.27±0.05
(128.00)
Sec. "A"
Sec. "B"
15.48±0.1
34.10
8.28±0.05
5.08±0.05
Æ3.20
+ 0.1
0
168-
Æ
0.80
+ 0.1
0
3.70±0.5
w0.40 x t0.30
Positioning Details
Section "A" (DRAM Key Indicators)
IC-438-1-*-**
1.60
- 0.1
0
Matching Module Dimensions
IC-438-2-*-**
R - 0.8
1.00
IC-438-3-*-**
R - 0.8
1.00
133.35±0.13
127.35
4.00
2-R 1.00
Component area
2-R 2.00
25.40±0.13
2.54
Section "B" (Voltage Key Indicators)
IC-438-*-1-**
IC-438-*-2-**
0
1.60
- 0.1
2 - 6.35
IC-438-*-3-**
1.00
IC-438-*-4-**
1.00
11.43
8.89
36.83
43.18
54.61
1.27
no indication
3.3V
5V
less than 3.3V
B-4
Test & Burn-In
SPECIFICATIONS ARE SUBJECT TO ALTERATION WITHOUT PRIOR NOTICE – DIMENSIONS IN MILLIMETER
3.00
DRAM
SDRAM
UDRAM
17.78
Sec. "A"
Sec. "B"
2-2.00
1.27