Description
The STLED325 is a compact LED controller/ driver that interfaces microprocessors to LED displays through serial I2C interface. It drives LEDs connected in common anode configuration and includes keyscanning for an 8 x 2 key matrix which automatically scans and de-bounces a matrix of up to 16 switches. Furthermore, the STLED325 provides standby power management to the host. It also integrates a low-power, highly-accurate RTC and a remotecontrol decoder. All functions are programmable using the I2C bus. Low power consumption during standby mode is achieved. The STLED325 controller/driver is ideal as a single peripheral device to interface the front panel display with a single-chip host IC like CPU. QFN32 (5 x 5 mm)

Features
■ LED controller driver with 13 outputs (8 segments/5 digits)
■ Standby power management to host
■ Integrated low-power, accurate RTC
■ Integrated remote control decoding: – Philips (RC5, RCMM) – Thomson (RCA, R2000) – NEC and R-STEP
■ Wake-up using front panel keys, remote control, real time clock (RTC), extra pin (AV or CEC)
■ Battery or super-cap back up mode for real time clock (RTC)
■ Keyscanning (8x2 matrix)
■ Low power consumption in standby mode
■ I2C serial bus interface (SCL, SDA)
■ 16-step dimming circuit to control the display brightness
■ 5.0 V (± 10%) for VCC
■ Built-in thermal protection circuit
■ External crystal with internal oscillator for real time clock (RTC)

Applications
■ Set-top boxes
■ White goods
■ Home appliances
■ DVD players, VCRs, DVD-R