STFPC320 Datasheet | STMicroelectronics

Front panel controller/driver with standby power management and real-time clock 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 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 m A max each) Serial I2C interface (SCL, SDA) munication protocol b Operating speed: up to 400 k Hz for I2C Programmable hotkeys for IR remote control mand and KEYSCAN mand 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 PQFP-52 .. (Philips, NEC, Thomson, Sony, Matsushita) - - - - - - - - - - - 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. Low power consumption is achieved during standby operation. The STFPC320 provides the standby power management to the main chipset. The STFPC320 is housed in a 52-pin PQFP package. The pin assignments and application circuit are optimized for an easy PCB layout and cost saving advantages. Applications - - VCR, DVD and personal video recorders Home theatre with clock feature, STB and HTi B (home theater in a box) Device summary Operating temperature -40°C to 85°C Package PQFP-52 Packaging Tape and reel Table 1. Order code STFPC320 July 2008 Rev 2 1/78 .st. 78 Contents Contents 1 2 3 Device block diagram -...