Preliminary Data

This is preliminary information on a new product now in development or undergoing evaluation.

Details are subject to change without notice.

June 2007

Rev 2

1/25

25

STP08CP05

Low voltage, low current power 8-bit shift register

Features

resistor

exposed pad

Description

The STP08CP05 is a monolithic, low voltage, low

current, power 8-bit shift register designed for

LED panel displays. The STP08CP05 contains a

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

a

8-bit D-type storage register. In the output stage,

eight regulated current sources were designed to

provide 5-100mA constant current to drive the

LEDs, the output current setup time is 10ns (typ),

thus improving the system performance.

The STP08CP05 is backward compatible in

functionality and footprint with STP8C/L596.

Through an external resistor, users can adjust the

STP08CP05 output current, controlling in this way

the light intensity of LEDs, in addition, user can

adjust LED’s brightness intensity from 0% to

The STP08CP05 guarantees a 20V output driving

capability, allowing users to connect more LEDs in

series. The high clock frequency, 30 MHz, also

satisfies the system requirement of high volume

data transmission. The 3.3V of voltage supply is

useful for applications that interface with any

micro from 3.3V. Compared with a standard

TSSOP package, the TSSOP exposed pad

increases heat dissipation capability by a 2.5

factor.

Dip-16

TSSOP16

(Exposed pad)

TSSOP16

SO-16

www.st.com

Table 1. Device summary

Order codes

Package

Packaging

STP08CP05B1R

DIP-16

25 parts per tube

STP08CP05MTR

SO-16 (Tape & Reel)

2500 parts per reel

STP08CP05TTR

TSSOP16 (Tape & Reel)

2500 parts per reel

STP08CP05XTTR

TSSOP16 Exposed-Pad (Tape & Reel)

2500 parts per reel