參數(shù)資料
型號(hào): MC9S12UF32PB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 60 MHz, MICROCONTROLLER, PQFP64
封裝: LQFP-64
文件頁數(shù): 124/128頁
文件大?。?/td> 1785K
代理商: MC9S12UF32PB
95
Freescale Semiconductor
System on a Chip Guide — 9S12UF32DGV1/D V01.05
Figure 22-1 Sample schematic with 64-pin LQFP MC9S12UF32
22.1.1 Power Supply Notes
A 5V power is required. Figure 22-1 shows an example of bus-powered USB device. Special
considerations are needed in the choice of capacitors and other power consumptions of the board in order
to fulfil the USB current requirement. Alternatively, the board can be designed for self-powered USB
device.
22.1.2 Clocking Notes
For proper operation of USB and storage interface of the MC9S12UF32, a 12-MHz crystal is required to
provide the clock input to the integrated USB PHY. The crystal must connect to the MC9S12UF32 in a
Pierce configuration by the XTAL and EXTAL pins as shown.
BKGD
RESETB
5V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
MC9S12UF32
64 LQFP
3V3
REF3V
3V3
EXTAL
XTAL
X1
C7 (22pF)
C8 (22pF)
R5
(1M
)
(12MHz)
5V
DMH
DMF
DPF
DPH
L1
R21 (10
)
R1 (33
)
R2 (33
)
R22 (10
)
VDD
GND
D-
D+
1
2
3
4
5V
R10 (3.3K
)
BKGD
RESETB
5V
1
2
3
4
CON2
CON1
(USB Input)
C5 (100nF)
R3
(510
)
R4
(1.5K
)
5V
C1
(4.7uF)
C3(100nF)
C2
(4.7uF)
C4
(100nF)
C6
(5nF)
REF3V
3V3
Q1
MMBF0201N
EXTAL
XTAL
DMH
DMF
DPH
DPF
RREF
VSSA1
DMH
DMF
DPH
DPF
VDDA
RPU
VSSA
EXTAL
XTAL
VDDX
VSSX
REF3V
VDDR
VSSR
RESET
TEST
BKGD
MODB M
O
D
A
VDD3X
VSS3X
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