sh66k31c SinoWealth Micro-Electronics Corp. Ltd, sh66k31c Datasheet - Page 8

• Manufacturer Part Number: sh66k31c
• Description: Mask 4-bit Micro-controller
• Manufacturer: SinoWealth Micro-Electronics Corp. Ltd

4.2. Other Initial States:
5. System Clock and Oscillator
The oscillator generates the basic clock pulses that provide the system clock to supply CPU and on-chip peripherals.
System clock = f
f
5.1. Instruction Cycle Time:
(1) 4/455kHz (≈ 8.79µs) for 455kHz oscillator.
(2) 16/455kHz (≈ 35.16µs) for 455kHz oscillator.
(3) 16/4MHz (= 4µs) for 4MHz oscillator.
5.2. Oscillator Type
(1) Ceramic Resonator: 400kHz - 4MHz
Note:
Recommended oscillator manufacturer and part number
ZT3.58M3
- f
- JINGBO Electronics CO., LT., Shanghai, China
More manufacturer and type of ceramic resonator will be added.
(2) External input clock: 400kHz - 4MHz
OSC
OSC
/4 function is used for oscillator frequency lower than 500kHz.
= 3.58MHz, Built-in 30pF capacitance, Operating Temperature range from -20 ℃ to +80 ℃
Program Counter (PC)
Other Initial States
Accumulator (AC)
Data Memory
OSC
CY
/4 or f
OSC
/16 (Code option)
OSCO
OSCI
OSCO
OSCI
After any Reset
Undefined
Undefined
Undefined
$000
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Ceramic
External clock source
C1
C2
GND
SH66K31C