HT672B Ver la hoja de datos (PDF) - Holtek Semiconductor
Número de pieza
componentes Descripción
Fabricante
HT672B Datasheet PDF : 8 Pages
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Pin Assignment
Pad Assignment
HF 1
NC 2
NC 3
H FI 4
8 VCC
7 VPP
6 C LK
5 GND
H T672B
8 D IP -A
HF
VCC VPP
1
65
(0 ,0 )
HT672B
2
34
H F1
G N D C LK
Chip size: 36.4´36.4 (mil)2
* The IC substrate should be connected to VSS in the PCB layout artwork.
Pad Coordinates
Pad No.
1
2
3
X
-252.875
-252.875
112.975
Y
303.663
-298.537
-314.687
Pad No.
4
5
6
X
247.074
238.174
126.674
Unit: mm
Y
-297.912
284.663
284.663
Pad Description
Pad
No.
Pad
Name
I/O
Internal
Connection
Description
1 HF
I/O CMOS Connect to an antenna coil for normal operation. Open for data programming.
2 HF1
I/O CMOS Connect to an antenna coil for normal operation. Data I/O for programming.
3 VSS
¾
¾
Negative power supply, ground
4 CLK
I
CMOS Open for normal operation. Clock input for programming.
5 VPP
I
¾
Open for normal operation. High voltage supplies input for programming.
(Suggest 12.5V for programming)
6 VDD
¾
¾
Open for normal operation, +6V supply input for programming.
Rev. 1.10
2
November 23, 2004
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