AT89S2051_05 Datasheet, PDF (43/45 Pages) ATMEL Corporation – 8-bit Microcontroller with 2K/4K Bytes Flash

56. Package Information
56.1 20P3 – PDIP
D
PIN
1
E1
AT89S2051/S4051
A
SEATING PLANE
L
e
A1
B1
B
E
C
eC
eB
Notes:
1. This package conforms to JEDEC reference MS-001, Variation AD.
2. Dimensions D and E1 do not include mold Flash or Protrusion.
Mold Flash or Protrusion shall not exceed 0.25 mm (0.010").
COMMON DIMENSIONS
(Unit of Measure = mm)
SYMBOL MIN
A
–
A1 0.381
D
24.892
E
7.620
E1
6.096
B
0.356
B1 1.270
L
2.921
C
0.203
eB
–
eC 0.000
e
NOM MAX NOTE
–
5.334
–
–
–
26.924 Note 2
–
8.255
–
7.112 Note 2
–
0.559
–
1.551
–
3.810
–
0.356
–
10.922
–
1.524
2.540 TYP
TITLE
2325 Orchard Parkway _{20P3, 20-lead (0.300"/7.62 mm Wide) Plastic Dual}
R San Jose, CA 95131 _{Inline Package (PDIP)}
1/23/04
DRAWING NO. REV.
20P3
D
43
3390C–MICRO–7/05