SH6614D

SH6614D 4K 4-Bit Microcontroller with LCD Driver Features SH6610C-based single-chip 4-bit microcontroller ROM: 4096 X 16 bits RAM: 512 X 4 bits Operation voltage: 2.4V – 6.0V 8 CMOS bi-directional I/O pins 4-Level subroutine nesting (include interrupts) One 8-bit auto re-load timer/counter Wem-up timer for power-on reset Powerful interrupt sources: - External interrupts ( INT0 ) - Internal interrupt (Timer0) - Internal interrupt (Base Timer) - Port's falling edge interrupt: PORTB ( INT1 ) 8-bit Base timer LCD driver: 240 dots (1/8 duty 1/4 bias) or 136 dots (1/4 duty 1/3 bias) LCD used as scan output Built-in dual tone PSG with one noise generator 2 Clock sources OSC: (code option select crystal or RC type) - Crystal oscillator 32.768K - RC oscillator: 262K OSCX: (system register selected ceramic or RC type) - Ceramic oscillator 455K - RC oscillator 1.8M or 2M Instruction cycle time: - 122.07µs for 32.768 KHz crystal - 15.27µs for 262 KHz RC - 8.79µs for 455KHz ceramic - 2.22µs for 1.8 MHz RC - 2µs for 2.0 MHz RC Two low power operation modes: HALT and STOP Low power consumption General Description SH6614D is a single chip microcontroller integrated with SRAM, timer and dual-tone PSG, LCD driver, and I/O port. This chip builds in a dual-oscillator to enhance the total chip performance. Pin Configuration QFP64 R ET SSS P A 2 P A 3 P B 0 P B 1 P B 2 P B 3 V D D S E T N C N C N C E S T V 4 V 3 V 2 V 1 E G 1 E G 2 E G 3 PA1 PA0 OSCXI OSCXO GND OSCO OSCI...