Princeton Technology Corp.
VFD Driver/Controller IC
DESCRIPTION
Tel: 886-2-29162151
Fax: 886-2-29174598
URL:
http://www.princeton.com.tw
PT6355
PT6355 is a Vacuum Fluorescent Display Controller driven 5/16, 6/16, 14/16 and 15/16 duty factors. Eight to
Eighteen Segment Output Lines, Seven to Ten Grid Output Lines, Ten Segment/Grid Output Drive Lines, 8-bit
x 6-channel A-D Converter, Built-in Noise Filter are all incorporated into a single chip to build a highly reliable
peripheral device for a single chip micro-computer. PT6355 also provides 4 serial interfaces via the CS, SIN,
SOUT, SCLK Pins. Housed in 44-pin, LQFP Package, PT6355’s pin assignment and application circuit are
optimized for easy PCB layout and cost saving benefits.
FEATURES
•
•
•
•
•
•
•
•
CMOS Technology
Internal Pull-Low Resistor
4-Step Dimming Circuitry
8 to 18 Segment Outputs
7 to 10 Grid Outputs
Built-in Noise Filter in Serial Clock and Serial Input Pins with 2MHz sampling
8-bit x 6 channels Analog-to-Digital Converter with + 3LSB Accuracy
Available in 44-pin, LQFP Package
APPLICATION
• Micro-Computer Peripheral Device
PT6355 v1.3
1
Updated November 2000
Princeton Technology Corp.
VFD Driver/Controller IC
APPLICATION CIRCUIT
Tel: 886-2-29162151
Fax: 886-2-29174598
URL:
http://www.princeton.com.tw
PT6355
5V
S1
S2
S3
S4
S5
S6
S7
S8
S9
S 10
43 42
40 39
38
36
35
44
22PF
41
37
34
7-G R ID X 18-SE G M E N T V FD
33
32
31
30
S 11
S 12
S 13
S 14
S 15
S 16
S 17
S 18
G7
G6
G5
5V
5V
VR
VR
100K
29
PT6355
300K
100K
5V
10K
330
5V
-2 7 V
MCU
12
13 14 15
16
17 18
19
20
21
22
28
27
26
25
100K
24
100K
23
100K
680K
G4
G3
G2
G1
PT6355 v1.3
3
Updated November 2000