SH6614B

SH6614 SH6614B SH6614C 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 SH6614 (SH6614B, SH6614C) 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 PPPPPP S E EEE A A B B B B V ENNN S V V V VGGG 2 3 0 1 2 3 D D T CCC T ...