SH66P22A

SH66P22A OTP 4-bit Microcontroller Features SH6610C-based single-chip 4-bit micro-controller OTPROM: 4K X 16 bits RAM: 160 X 4 bits (data memory) Operation voltage: 2.4V - 6.0V (typical 3.0V or 5.0V) 22 CMOS bi-directional I/O pins 4-level subroutine nesting (including interrupts) One 8-bit auto re-load timer/counter Warm-up timer for power on reset Powerful interrupt sources: - Internal interrupt (Timer0) - External interrupts: PortB & PortC (falling edge) Oscillator (OTP option) - X`tal oscillator: 32.768KHz - 4MHz - Ceramic resonator: 400K - 4MHz - RC oscillator : 400K - 4MHz - External clock: 30K - 4MHz Instruction cycle time: - 4/32.768KHz(122us) for 32.768KHz OSC clock - 4/4MHz (1us) for 4MHz OSC clock Two low power operation modes: HALT and STOP Built-in watch dog timer (OTP option) Built-in power on reset General Description SH66P22A is a 4-bit micro controller. This chip integrates the SH6610C 4-bit CPU core with SRAM, 4K OTPROM, Timer and I/O Ports. Pin Configuration PE2 PE3 PF1 PA2 PA3 T0 RESET GND PB0 PB1 PB2 PB3 PD0 PD1 1 2 3 4 28 27 26 25 PE1 PE0 PF0 PA1 PA0 OSCI OSCO VDD PC3 PC2 PC1 PC0 PD3 PD2 5 6 7 8 9 10 11 12 13 14 24 23 22 21 20 19 18 17 16 15 w w w .d e e h s a t a . u t4 m o c 1 V2.4 www.DataSheet4U.com SH66P22A SH66P22A Block Diagram RESET OSCO OSCI OSC WDTEN RC CPU Power on RESET PRESCLALER PORTA ( 4-BITS ) PORTA [0:3] PORTB ( 4-BITS ) PORTB [0:3] WATCHDOG TIMER T0 8-BITS TIMER ( Up counter ) PORTC ( 4-BITS ) CTL REG. PORTC...