sh6611a SinoWealth Micro-Electronics Corp. Ltd, sh6611a Datasheet - Page 5

• Manufacturer Part Number: sh6611a
• Description: 1k 4-bit Microcontroller With Lcd Driver
• Manufacturer: SinoWealth Micro-Electronics Corp. Ltd

SH6611A
4. System Clock and Oscillator
SH6611A has one clock source. Oscillator is determined by code option. The oscillator generates the basic clock pulses
that provide the system clock to supply CPU and on-chip peripherals.
System clock = FOSC/4.
(a) Instruction cycle time:
(1) 4/32768Hz ( ≈ 122.1 µ s) for 32768Hz oscillator.
(2) 4/262KHz ( ≈ 15 µ s) for 262KHz oscillator.
(b) Oscillator type
(1) Crystal oscillator: 32768Hz
20pF
OSCI
32768Hz
20pF
OSCO
(2) RC oscillator: 262KHz
VDD
890K
OSCI
5/25
Ver 0.0