TB62709 データシートの表示（PDF） - Toshiba

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TB62709

TOSHIBA Bi−CMOS INTEGRATED CIRCUIT SILICON MONOLITHIC

Toshiba 

PIN FUNCTIONS

TB62709N/F

PIN NUMBER PIN NAME

FUNCTION

1

VDD

5 V power pin.

2

DATA−IN (DI) Serial data input pin.

3

CLOCK (CK) Clock input pin. The shift register shifts data on the clock's rising edge.

Load signal input pin. The data in the D8 to D15 are read on the rising edge and the current

4

LOAD (LD)

load register the is selected from among the Duty Register, the Decode & Digit Register, or

Data Registers 0 to 3. The D0 to D7 bits of the 16−bit shift register contain data corresponding

to the same registers just described, which are read on the load signal's falling edge.

5~12

OUT−A to

OUT−Dp

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.

13, 21

P−GND

Ground pins, There are two which can be used to ground the output OUT−A to OUT−Dp pins.

14

TEST−IN2 Product test pin. In normal use, be sure to connect to ground.

15

TEST−IN1 Product test pin. In normal use, be sure to connect to ground.

16, 17, 19, 20

DIG−0 to DIG−3

Digit output pins. Each of these pins can control one of the four seven−segment digits in a

display.

These pins output the VCC pin voltage as a source current output. Connect these pins to the

LED anodes.

18

VCC

Power pin for digit output.

22

R−EXT

Current setting pin for the OUT−A to OUT−Dp pins. Connect a resistor between this pin and

ground when setting the current.

23

DATA−OUT (DO)

Serial data output pin. Use when TB62709N or TB62709F devices are used in cascade

connections.

24

L−GND

Ground pin for logic and analog circuits.

3

2006-06-14

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