1/16

May 2005

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8 CONSTANT CURRENT OUTPUT

CHANNELS

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ADJUSTABLE OUTPUT CURRENT

THROUGH EXTERNAL RESISTOR

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SERIAL DATA IN/PARALLEL DATA OUT

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SERIAL OUT CHANGE STATE ON THE

FALLING EDGES OF CLOCK

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OUTPUT CURRENT: 15-120 mA

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25 MHz CLOCK FREQ.

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EFFICIENCY PACKAGE

DESCRIPTION

The STP08C596 is a monolithic, medium-voltage,

low current power 8-bit shift register designed for

LED panel display. The STP08C596 contains a

8-bit serial-in, parallel-out shift register that feeds

a 8-bitD-type storage register. In the output stage,

eight regulated current sources were designed to

provide 15-120mA constant current to drive the

LEDs.

Compared with the STPIC6C595, the device

provides

great

flexibility

and

improved

performance in LED panel system design.

Trough an external resistor, users may adjust the

STP08C596 output current, controlling in this way

the light intensity of LEDs.

The STP08C596 guarantees 16V output driving

capability, allowing users to connect more LEDs in

series. The high clock frequency, 25 MHz, also

satisfies the system requirement of high volume

data transmission.

Table 1: Order Codes

Part Number

Temp. Range

Package

Comments

STP08C596B1

-40°C to 125°C

DIP-16

25 part per tube

STP08C596M

-40°C to 125°C

SO-16 (Tube)

50 parts per tube

STP08C596MTR

-40°C to 125°C

SO-16 (Tape & Reel)

1000 parts per reel

STP08C596TTR

-40°C to 125°C

TSSOP16 (Tape & Reel)

2500 parts per reel

STP08C596

8-BIT CONSTANT CURRENT LED SINK DRIVER

SO-16

DIP-16

TSSOP16

Rev. 9