PACKAGING INFORMATION ISSI
®
Integrated Silicon Solution, Inc. — www.issi.com —
1-800-379-4774
Rev. F
10/29/03
Copyright © 2003 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time
without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to
obtain the latest version of this device specification before relying on any published information and before placing orders for products.
400-mil Plastic SOJ
Package Code: K
Notes:
1. Controlling dimension:
millimeters.
2. BSC = Basic lead spacing
between centers.
3. Dimensions D and E1 do not
include mold flash protrusions
and should be measured from
the bottom of the package.
4. Reference document: JEDEC
MS-027.
SEATING PLANE
1
N
E1
D
E2
E
B
e
A1
A
C
A2
b
N/2+1
N/2
Millimeters Inches Millimeters Inches Millimeters Inches
Symbol Min Max Min Max Min Max Min Max Min Max Min Max
No. Leads (N) 28 32 36
A 3.25 3.75 0.128 0.148 3.25 3.75 0.128 0.148 3.25 3.75 0.128 0.148
A1 0.64 — 0.025 — 0.64 — 0.025 — 0.64 — 0.025 —
A2 2.08 — 0.082 — 2.08 — 0.082 — 2.08 — 0.082 —
B 0.38 0.51 0.015 0.020 0.38 0.51 0.015 0.020 0.38 0.51 0.015 0.020
b 0.66 0.81 0.026 0.032 0.66 0.81 0.026 0.032 0.66 0.81 0.026 0.032
C 0.18 0.33 0.007 0.013 0.18 0.33 0.007 0.013 0.18 0.33 0.007 0.013
D 18.29 18.54 0.720 0.730 20.82 21.08 0.820 0.830 23.37 23.62 0.920 0.930
E 11.05 11.30 0.435 0.445 11.05 11.30 0.435 0.445 11.05 11.30 0.435 0.445
E1 10.03 10.29 0.395 0.405 10.03 10.29 0.395 0.405 10.03 10.29 0.395 0.405
E2 9.40 BSC 0.370 BSC 9.40 BSC 0.370 BSC 9.40 BSC 0.370 BSC
e 1.27 BSC 0.050 BSC 1.27 BSC 0.050 BSC 1.27 BSC 0.050 BSC
