tb62709ng Marktech Optoelectronics, tb62709ng Datasheet - Page 3

• Manufacturer Part Number: tb62709ng
• Description: 7?segment Drivers With Built?in Decoders
• Manufacturer: Marktech Optoelectronics

PIN FUNCTIONS
PIN NUMBER
16, 17, 19, 20
13, 21
5~12
14
15
18
22
23
24
1
2
3
4
DATA−OUT (DO)
DIG−0 to DIG−3
DATA−IN (DI)
CLOCK (CK)
LOAD (LD)
PIN NAME
TEST−IN2
TEST−IN1
OUT−A to
OUT−Dp
P−GND
L−GND
R−EXT
V
V
DD
CC
5 V power pin.
Serial data input pin.
Clock input pin. The shift register shifts data on the clock's rising edge.
Load signal input pin. The data in the D
load register the is selected from among the Duty Register, the Decode & Digit Register, or
Data Registers 0 to 3. The D
to the same registers just described, which are read on the load signal's falling edge.
Segment drive output pins. The A to Dp outputs correspond to the seven segments. These
pins output constant sink current. Connect each of these pins to the corresponding LED's
cathode.
Ground pins, There are two which can be used to ground the output OUT−A to OUT−Dp pins.
Product test pin. In normal use, be sure to connect to ground.
Product test pin. In normal use, be sure to connect to ground.
Digit output pins. Each of these pins can control one of the four seven−segment digits in a
display.
These pins output the V
LED anodes.
Power pin for digit output.
Current setting pin for the OUT−A to OUT−Dp pins. Connect a resistor between this pin and
ground when setting the current.
Serial data output pin. Use when TB62709N or TB62709F devices are used in cascade
connections.
Ground pin for logic and analog circuits.
CC
3
pin voltage as a source current output. Connect these pins to the
0
to D
7
bits of the 16−bit shift register contain data corresponding
8
to D
FUNCTION
15
are read on the rising edge and the current
TB62709NG/FG
2005-10-06