I. Overview: TM1628 is one with a keyboard scan interface LED (light emitting diode display) dedicated drive control circuit, the internal MCU integrated digital interface, data latches, LED high voltage driver, keyboard scanning circuit. The superior product performance and reliable quality. Mainly used in VCR, VCD, DVD and home theater products such as display drivers. SOP28 adopt the package. Second, characteristics? Description: power CMOS process using typical operating voltage:? 3-5V variety of display modes (10 segments × 7 th - 13 segments × 4 bits) key scan (10 × 2 bit) brightness adjustment circuit??? (duty cycle 8 adjustable) serial interface (CLK, STB, DIO) Oscillation mode:?? Built-in RC oscillator (450KHz + 5%) on the built-in power-on reset circuit package:??. SOP28 three applications: Main applied to the VCR, VCD, DVD and home theater products such as display drivers.