44
43
42
41
40
39
38
37
36
35
34
VCC
1
2
3
4
5
33
32
31
30
29
GND
CLK24
GND
BKPT
PB7/T2OUT
GND
PB6/INT6
GND
PB5/INT5#
44 PQFP
10 x 10 mm
GND
AGND
XIN
6
7
28
27
26
25
24
23
PB4/INT4
PB3/TxD2
PB2/RxD2
8
9
PB1/T2EX
PB0/T2
XOUT
AVCC
VCC
10
11
GND
12
13
14
15
16
17
18
19
20
21
22
Figure 1-10. 44-pin PQFP Package with Port B (AN2121S, AN2122S, and AN2131S)
EZ-USB TRM v1.9
Chapter 1. Introducing EZ-USB
Page 1-19