参数资料
型号: ST72621J2B1
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP20
封装: 0.300 INCH, PLASTIC, DIP-20
文件页数: 2/136页
文件大小: 2475K
代理商: ST72621J2B1
ST7262
10/136
Note 1: Peripheral not present on all devices. Refer to “Device Summary” on page 1.
2.1 PCB LAYOUT RECOMMENDATION
In the case of DIP20 devices the user should lay-
out the PCB so that the DIP20 ST7262 device and
the USB connector are centered on the same axis
ensuring that the D- and D+ lines are of equal
length. Refer to Figure 6
Figure 6. Recommended PCB Layout for USB Interface with DIP20 package
43
4
----
PD3
I/O CT
xx
Port D3
44
5
----
PD2
I/O CT
xx
Port D2
Pin n°
Pin Name
Type
Level
Port / Control
Main
Function
(after
reset)
Alternate Function
TQ
F
P
4
DIP42
SO
3
4
DIP32
SO
2
0
DIP20
Input
Out
p
u
t
Input
Output
fl
oat
wp
u
int
ana
OD
PP
14
13
12
11
15
16
17
18
USBVCC
USBDP
1
2
3
4
5
6
7
8
9
10
19
20
USBDM
USB Connector
Ground
ST72
62
1.5KOhm pull-up resistor
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