PIC18F2220/2320/4220/4320
44-Lead Plastic Quad Flat No Lead Package (ML) 8x8 mm Body (QFN)
EXPOSED
METAL
PAD
E
p
D
D2
2
1
B
n
PIN 1
INDEX ON
EXPOSED PAD
OPTIONAL PIN 1
INDEX ON
TOP MARKING
E2
L
(PROFILE MAY VARY)
TOP VIEW
BOTTOM VIEW
DETAIL: CONTACT VARIANTS
A
A1
(A3)
Units
Dimension Limits
INCHES
NOM
MILLIMETERS*
MIN
MAX
MIN
NOM
44
MAX
n
p
Number of Contacts
44
1
2
1
Pitch
.026 BSC
.035
.001
.010 REF
0.65 BSC
Overall Height
Standoff
A
A1
(A3)
E
.031
.039
0.80
0.90
1.00
.000
.002
0
0.02
0.05
2
Base Thickness
Overall Width
Exposed Pad Width
Overall Length
Exposed Pad Length
Contact Width
Contact Length
0.25 REF
.309
.246
.309
.246
.008
.014
.315
.268
.315
.268
.013
.016
.321
.274
.321
.274
.013
.019
7.85
6.25
7.85
6.25
0.20
0.35
8.00
6.80
8.00
6.80
0.33
0.40
8.15
6.95
8.15
6.95
0.35
0.48
E2
D
D2
B
L
*Controlling Parameter
Notes:
1. BSC: Basic Dimension. Theoretically exact value shown without tolerances.
See ASME Y14.5M
2. REF: Reference Dimension, usually without tolerance, for information purposes only.
See ASME Y14.5M
3. Contact profiles may vary.
4. JEDEC equivalent: M0-220
Drawing No. C04-103
2003 Microchip Technology Inc.
DS39599C-page 367
MICROCHIP [ MICROCHIP ]
