sh66p31b SinoWealth Micro-Electronics Corp. Ltd, sh66p31b Datasheet - Page 8

• Manufacturer Part Number: sh66p31b
• Description: Otp 1k 4-bit Micro-controller
• Manufacturer: SinoWealth Micro-Electronics Corp. Ltd

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 ( ≈ 8.79 µ s) for 455kHz oscillator.
(2) 16/455kHz ( ≈ 35.16 µ s) for 455kHz oscillator.
(3) 16/4MHz (= 4 µ s) for 4MHz oscillator.
5.2. Oscillator Type
(1) Ceramic Resonator: 400kHz - 4MHz
Note:
Recommended oscillator manufacturer and part number
ZT3.58M3
- f
- From China Shanghai JINGBO Electronics CO., LTD
More manufacturer and type of ceramic resonator will be added in.
(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 ℃
OSC
/4 or f
OSC
/16 (Code option)
OSCO
OSCI
OSCO
OSCI
8
Ceramic
External clock source
C1
C2
GND
SH66P31B