PT6964_10 Datasheet, PDF (3/15 Pages) Princeton Technology Corp – LED Driver IC

ORDER INFORMATION
Valid Part Number
PT6964-S
Package Type
28 Pins, SOP, 300mil
PIN DESCRIPTION
PT6964
Top Code
PT6964-S
PIN DESCRIPTION
Pin Name
OSC
DI/O
CLK
STB
K1 ~ K2
VDD
SG1/KS1 ~ SG10/KS10
SG12/GR7 ~ SG14/GR5
GND
I/O
Description
Oscillator Input Pin
I A resistor is connected to this pin to determine the oscillation
frequency
Data Input Pin
I/O
This pin inputs serial data at the rising edge of the shift clock
(starting from the lower bit)
Data Output Pin (N-Channel, Open-Drain)
I
Clock Input Pin This pin reads serial data at the rising edge and
outputs data at the falling edge.
Serial Interface Strobe Pin
I The data input after the STB has fallen is processed as a
command. When this pin is HIGH", CLK is ignored.
Key Data Input Pins
I The data sent to these pins are latched at the end of the display
cycle. (Internal Pull-Low Resistor)
- Power Supply
O
Segment Output Pins (p-channel, open drain)
Also acts as the Key Source
O Segment / Grid Output Pins
- Ground Pin
GR4 ~ GR1
O Grid Output Pins
Pin No.
1
2
3
4
5, 6
7, 21
8 ~ 17
18 ~ 20
22, 25, 28
23, 24,
26, 27,
V1.4
3
October 2009