參數(shù)資料
型號(hào): M37534E8SP
廠商: Renesas Technology Corp.
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述: 單芯片8位CMOS微機(jī)
文件頁(yè)數(shù): 44/55頁(yè)
文件大小: 610K
代理商: M37534E8SP
7534 Group
Rev.2.00
Jun 21, 2004
page 49 of 54
REJ03B0099-0200Z
Fig. 52 Handling of VCC, USBVREFOUT pins of M37534M4-XXXGP
Outline 32P6U-A
P07
P10/RXD/D-
P11/TXD/D+
P12/SCLK
P13/SDATA
P14/CNTR0
P20/AN0
P21/AN1
32
31
30
29
28
27
26
25
P34(LED4)
P33(LED3)
P32(LED2)
P31(LED1)
P30(LED0)
VSS
XOUT
XIN
9
10
11
12
13
14
15
16
2
8
7
6
5
3
1
4
V
CC
CNV
SS
RESET
P2
2
/AN
2
P0
5
20
17
18
19
21
24
P0
2
P0
4
P0
3
P0 6
23
22
P0
1
P0
0
USBV
REFOUT
M37534M4-XXXGP
P2
3
/AN
3
P2
4
/AN
4
P2
5
/AN
5
V
REF
1.5k
Reason of is to reduce the effect by switcing noise of microcomputer to the
analog circuit generating USBVREFOUT output. Use the bigger capacitor and
connect to device at the shortest distance.
Reason of is to prevent the instability of the USBVREFOUT output due to
external noise.
Connect a capacitor to a device as
close as possible. For the capacitor,
a ceramic capacitor or an electrolytic
capacitor of 0.22
F is recommended.
Connect a bypass capacitor to a device
as close as possible. For the capacitor,
a ceramic capacitor or an electrolytic
capacitor of 1.0
F is recommended.
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