Information

PIC18F2331/2431/4331/4431
DS80239A-page 12 © 2005 Microchip Technology Inc.
• 28-pin QFN packaging details have been added
to Section 27.2 “Package Details” (page 374).
28-Lead Plastic Quad Flat No Lead Package (MM) 6x6x0.9 mm Body (QFN-S) –
With 0.40 mm Contact Length (Saw Singulated)
Lead Width
*Controlling Parameter
Drawing No. C04-124
Notes:
JEDEC equivalent: MO-220
b .013 .015 .017 0.33 0.38 0.43
Pitch
Number of Pins
Overall Width
Standoff
Overall Length
Overall Height
MAX
Units
Dimension Limits
A1
D
E
n
e
A
.000
INCHES
.026 BSC
MIN
28
NOM MAX
.002 0.00
6.00
MILLIMETERS*
.039
MIN
28
0.65 BSC
NOM
0.05
1.000.90.035
.001 0.02
Lead Length L .012 .016 .020 0.30 0.40 0.50
E2
D2
Exposed Pad Width
Exposed Pad Length
.169 .175 .177 4.30 4.45 4.50
.031 0.80
5.90 6.10.240.236.232
.232 .236 6.00.240 5.90 6.10
.169 .175 4.45.177 4.30 4.50
b
D2D
A1
A
TOP VIEW
OPTIONAL
INDEX
AREA
1
2
L
BOTTOM VIEW
n
E
METAL
PAD
ALTERNATE
EXPOSED
INDICATORS
INDEX
e
E2
Revised 05/24/04