Pin Assignment And Schematic - Holtek HT8 Easy DEV User Manual

(2) Hardware Connection Schematic Diagram – uses the DEV16NSOP002 as an example
USB
The e-Link is connected to the USB port for programming. If the connection is successful, a prompt will
be generated informing the user that the writter is connected.. If problems are encountered, refer to the
HOPE3000 e-Link User's Guide.

4. Pin Assignment and Schematic

No. Part No.
1 DEV16NSOP025 HT66V0025
2 DEV16NSOP002
No. Part No.
3 DEV20NSOP019
4 DEV20SSOP004
5 DEV24SSOP175 HT66V0175
6 DEV28SSOP185 HT66V0185
7 DEV28SSOP195 HT66V0195
Rev. 1.00
OCDS EV VDD VSS OCDSDA OCDSCK
1 16 9
HT66V002
OCDS EV VDD VSS OCDSDA/ICPDA
HT66V019 20 1 5
HT66V004 20 1 5
24 1 5
28 1 5
PCB Difference Comparison Table
8
HT8 Easy DEV User's Guide
The jumper socket
close to the ICPDA
The jumper socket
ICP
close to the ICPCK
ICPDA ICPCK
8 15 PA0 4 PA7
OCDSCK/ICPCK
PA0 7 PA2
PA0 7 PA2
PA0 9 PA2
PA0 11 PA2
LED
3 PA5
LED
13 PA7
13 PA7
15 PA7
17 PA7
May 24, 2019