PT6958_10 Datasheet, PDF (3/16 Pages) Princeton Technology Corp – LED Driver IC

ORDER INFORMATION
Valid Part Number
PT6958
Package Type
28-pin, SOP, 300mil
PIN CONFIGURATION
Top Code
PT6958
PT6958
PIN DESCRIPTION
Pin Name
I/O
Description
OSC
I
Oscillator Input Pin
A resistor is connected to this pin to determine the oscillation frequency
DOUT
O
Data Output Pin (N-Channel, Open-Drain)
This pin outputs serial data at the falling edge of the shift clock.
Data Input Pin
DIN
I This pin inputs serial data at the rising edge of the shift clock (starting from the
lower bit)
Clock Input Pin
CLK
I This pin reads serial data at the rising edge and outputs data at the falling
edge
Serial Interface Strobe Pin
STB
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
K1 ~ K4
I The data sent to these pins are latched at the end of the display cycle.
(Internal Pull-Low Resistor)
VDD
- Power Supply
SG1/KS1 ~ SG6/KS6
O
Segment Output Pins (P-Channel, open drain)
Also acts as the Key Source
SG7 ~ SG10
O Segment Output Pins (P-Channel, open drain)
GND
- Ground Pin
GR5 ~ GR1
O Grid Output Pins (N-Channel, open drain)
Pin No.
1
2
3
4
5
6~9
10, 21
11 ~ 16
17 ~ 20
22, 28
23 ~ 27
V2.3
3