SERIAL INTERFACE

SIN

SIN(a)

TLC59461(a)

SOUT

S

UT(b)

O

SCLK, XLAT,

BLANK,GSCLK,

MODE

SIN

TLC59461(b)

SOUT

MODE

XLAT

SIN(a)

SCLK

SOUT(b)

BLANK

GSCLK

OUT0/4/8/12

(Voltage)

OUT1/5/9/13

(Voltage)

OUT2/6/10/14

(Voltage)

OUT3/7/11/15

(Voltage)

1

1

1

1

192

384

384

DCb

MSB

DCa

LSB

DCb

MSB

GSb1

MSB

GSa1

LSB

GSb1

MSB

1

1

4096

GSa2

LSB

GSb2

MSB

SIDb2

MSB

SIDb2

MSB-1

SIDb1

MSB

SIDb1

MSB-1

SIDa1

LSB

GSb3

MSB

OFF

ON

¾

¾

¾

TLC59461

The TLC59461 has a flexible serial interface that can be connected to microcontrollers or digital signal

processors in various ways. Only three pins are needed to input data into the device. More than two TLC59461s

can be connected in series by connecting an SOUT pin from one device to the SIN pin of the next device.

Cascaded two TLC59461s are shown in Figure 29 and Figure 30. The SOUT pin can also be connected to the

controller to receive status information from the TLC59461; see the SCLK and GSCLK Frequency section.

Figure 29. Cascading Two TLC59461 Devices

Figure 30. Timing Diagram of Two Cascaded TLC59461 Devices (XHALF = High)

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