SH67L19 Description
The SH67L19 is a single chip micro-controller integrated with 4K mask ROM, SRAM, timer, PSG, alarm, RFC, EL-light, LCD driver, I/O ports. This chip builds in a dual-oscillator to enhance the total chip performance. V DD SEG13 Block Diagram.
SH67L19 Key Features
- OSC: Crystal oscillator: 32.768kHz, RC oscillator: with LCD driver 32kHz or 131kHz. (selected by Code Option) ROM: 4K X
- OSCX: Ceramic oscillator: 455kHz, RC oscillator: RAM: 256 X 4 bits 262kHz or 500kHz (400kHz
- 600kHz). (Selected by Operation Voltage: 1.2V
- 1.7V system register) 4-Level subroutine nesting (include interrupts) Instruction cycle time: One 8-bit Timers with pre-
- 122.07µs for 32.768 kHz crystal One 8-bit Base Timer
- 30.53µs for 131 kHz RC Warm-up timer for power-on reset
- 8.79µs for 455kHz ceramic Powerful interrupt sources
- 15.27µs for 262kHz RC
- External interrupts (Falling or rising edge)
- 8µs for 500kHz RC