AT27C256R-70RA View Datasheet(PDF) - Atmel Corporation
Part Name
Description
Manufacturer
AT27C256R-70RA Datasheet PDF : 15 Pages
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20.4 28T – TSOP
PIN 1
0º ~ 5º
c
Pin 1 Identifier Area
D1 D
L
e
b
L1
E
A2 A
SEATING PLANE
GAGE PLANE
A1
Notes:
1. This package conforms to JEDEC reference MO-183.
2. Dimensions D1 and E do not include mold protrusion. Allowable
protrusion on E is 0.15 mm per side and on D1 is 0.25 mm per side.
3. Lead coplanarity is 0.10 mm maximum.
COMMON DIMENSIONS
(Unit of Measure = mm)
SYMBOL
A
A1
A2
D
D1
E
L
L1
b
c
e
MIN NOM MAX
–
–
1.20
0.05
–
0.15
0.90
1.00
1.05
13.20 13.40 13.60
11.70 11.80 11.90
7.90
8.00
8.10
0.50
0.60
0.70
0.25 BASIC
0.17
0.22
0.27
0.10
–
0.21
0.55 BASIC
NOTE
Note 2
Note 2
TITLE
2325 Orchard Parkway
R San Jose, CA 95131
28T, 28-lead (8 x 13.4 mm) Plastic Thin Small Outline
Package, Type I (TSOP)
12/06/02
DRAWING NO. REV.
28T
C
14 AT27C256R
0014M–EPROM–12/07
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