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SN8F2270B Series
USB 2.0 Low-Speed 8-Bit Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 112
Version 1.3
15
Flash ROM PROGRAMMING PIN
n of SN8F2270B Series
Programming Informatio
Chip Name
SN8F2271BJ SN8F22721BS/X/P SN8F22711BS
EZ Writer / MP Writer
Connector
Flash IC / JP3 Pin Assigment
Numbe
r
b
Pin
n
r
Num
r
Number
Name Num er
Number
Pi
Numbe
Pin
be
Pin
Pin
1 VDD 1
VDD
18
VDD
3
VDD
2 GND 13
VSS
14
VSS
13
VSS
3 CLK 8
P1.2
8 P1.2
8
P1.2
4 CE
5 PGM 6
P1.0
6 P1.0
6
P1.0
6 OE 9
P1.3
9 P1.3
9
P1.3
7 D1
8 D0
9 D3
10 D2
11 D5
12 D4
13 D7
14 D6
15 VDD
16 -
17 HLS
18 RST
19 -
20 ALSB/PDB 7,
11
P1.1
P1.4
7, 12
P1.1
P1.4
7, 11
P1.1
P1.4
Note: Please also check the chapter 13.3 about the description of the SN8F2270B transition boards.