SN8F2250B Series
USB 2.0 Full-Speed 8-Bit Micro-Controller
15 FLASH ROM PROGRAMMING PIN
Programming Information of SN8F2250 Series
Chip Name
SN8F2251BJ SN8F22521BS/X SN8F2253BS SN8F22531BJ SN8F2255BF
EZ Writer / MP Writer
Connector
Flash IC / JP3 Pin Assigment
Numbe
Name
r
Number Pin Number Pin Number Pin Number Pin Number Pin
1
2
3
VDD
GND
CLK
CE
11
5
10
VDD
VSS
P2.0
18
14
19
VDD
VSS
P2.0
20
16
21
VDD
VSS
P2.0
23
19
24
VDD
VSS
P2.0
14
10
15
VDD
VSS
P2.0
4
5
6
PGM
OE
15
9
P1.0
P2.1
6
20
P1.0
P2.1
6
22
P1.0
P2.1
9
1
P1.0
P2.1
26
16
P1.0
P2.1
7
D1
8
D0
9
D3
10
11
12
13
14
15
16
17
18
19
20
D2
D5
D4
D7
D6
VDD
-
HLS
RST
-
ALSB/PDB
16
P1.1
7
P1.1
7
P1.1
10
P1.1
27
P1.1
SONiX TECHNOLOGY CO., LTD
Page 122
Version 1.1
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