PIC18F2221 MICROCHIP [Microchip Technology], PIC18F2221 Datasheet - Page 373

• Manufacturer Part Number: PIC18F2221
• Description: 28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

28-Lead Plastic Quad Flat, No Lead Package (MM) – 6x6x0.9 mm Body [QFN-S]
with 0.40 mm Contact Length
Notes:
1. Pin 1 visual index feature may vary, but must be located within the hatched area.
2. Package is saw singulated.
3. Dimensioning and tolerancing per ASME Y14.5M.
© 2007 Microchip Technology Inc.
Note:
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
REF: Reference Dimension, usually without tolerance, for information purposes only.
A3
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Number of Pins
Pitch
Overall Height
Standoff
Contact Thickness
Overall Width
Exposed Pad Width
Overall Length
Exposed Pad Length
Contact Width
Contact Length
Contact-to-Exposed Pad
TOP VIEW
D
N
Dimension Limits
2
1
A1
Preliminary
E
A
EXPOSED
NOTE 1
Units
A1
A3
E2
D2
PAD
N
A
E
D
K
e
b
L
E2
2
1
PIC18F4321 FAMILY
0.80
0.00
3.65
3.65
0.23
0.30
0.20
MIN
N
BOTTOM VIEW
MILLIMETERS
0.65 BSC
0.20 REF
6.00 BSC
6.00 BSC
NOM
0.90
0.02
3.70
3.70
0.38
0.40
28
D2
–
Microchip Technology Drawing C04-124B
MAX
1.00
0.05
4.70
4.70
0.43
0.50
–
L
DS39689E-page 371
b
e
K