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HT16525 Datasheet(PDF) 3 Page - Holtek Semiconductor Inc

Part # HT16525
Description  5x8 Dot Character VFD Controller & Driver
PDF  23 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT16525 Datasheet(HTML) 3 Page - Holtek Semiconductor Inc

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Rev. 1.00
3
January 18, 2012
HT16525
Pin Assignment
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
S23
G20
G19
G18
G17
G16
G15
G14
G13
G12
G11
G10
G9
G8
G7
G6
G5
G4
G3
G2
G1
47
46
45
44
43
42
41
HT16525
80 LQFP-A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 3738 39 40
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 6463 62 61
60
59
58
57
56
55
54
53
52
51
40
49
48
Pin Description
Pin Name
I/O
Description
Power Supply Pins
VDD
—
Positive power supply for logic circuits
VH
—
Power supply for VFD driver circuits
VSS
—
VSS - ground pin
Microcontroller Interface Pins
CS
I
Chip select pin
When “Low”, the device is active.
SCK
I
Serial clock input
Shift clock input with data written on the SCK rising edge.
SI
I
Serial data input.
The serial data is first shifted from LSB.
RST
I
Initialize all the internal registers and commands.
All segments and digits are fixed at “Low” level.
TEST
I
When “Low” or open, the device is in normal mode.
When “High”, the device is in test mode.
Output Pins
S1~S40
O
High-voltage segment output pins.
G1~G24
O
High-voltage grid output pins.
AD1, AD2
O
High-voltage additional data segment output pins.
P1, P2
O
General port output.
Static operation output - can drive LEDs
Oscillator Pin
OSCI
I
Oscillator input pin
Connected to an external resistor and capacitor to generate the oscillation
frequency.



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