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ST72F623F2M1 Datasheet(PDF) 10 Page - STMicroelectronics

Part No. ST72F623F2M1
Description  LOW SPEED USB 8-BIT MCU WITH 3 ENDPOINTS, FLASH OR ROM MEMORY, LVD, WDG, 10-BIT ADC, 2 TIMERS, SCI, SPI
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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ST7262
10/139
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
Level
Port / Control
Main
Function
(after
reset)
Alternate Function
Input
Output
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
Ground
1.5KOhm pull-up resistor




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