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Description

The STFPC320 is designed to integrate the VFD driving, key-scan matrix, LED driving, infrared (IR) remote control decoding and real-time clock (RTC) into one integrated solution. All the functions are programmable using the I2C bus.

Features

■ IC front panel VFD controller driver

■ Standby power management to the host

■ 3.3 V (VDD) and down to -30 V (VSS) supply for the IC

■ IR remote control decoder (Philips, NEC, Thomson, Sony, Matsushita)

■ Multiple display modes (12 seg. and 16 digits to 20 seg and 8 digits)

■ High voltage outputs (VDD - 33.3 V max)

■ No additional external resistors required for driver outputs (P-CH. open drain + pull-down resistor outputs)

■ Key scanning (up to 12 x 2 matrix = 24 keys)

■ LED ports (4 channels 20 mA max each)

■ Serial I2C interface (SCL, SDA) communication protocol b

■ Operating speed: up to 400 kHz for I2C

■ Programmable hotkeys for IR remote control command and KEYSCAN command

■ Low power consumption in standby mode

■ Dimming circuit (8 steps)

■ Real-time clock (accuracy ± 25 secs/month)

■ Wake-up alarm

■ Internal oscillator with external crystal for RTC

■ Available in PQFP-52 package (0.65 mm pitch

Applications

■ VCR, DVD and personal video recorders

■ Home theatre with clock feature, STB and HTiB (home theater in a box)