T89C51CC02 Atmel, T89C51CC02 Datasheet - Page 117

• Manufacturer Part Number: T89C51CC02
• Description: 8-Bit MCU
• Manufacturer: Atmel

T89C51CC02
17.6. Clock Selection
The maximum clock frequency for ADC is 700KHz. A prescaler is featured (ADCCLK) to generate the ADC
clock from the oscillator frequency.
conversion clock f
ADC
CPU
Prescaler ADCLK
2
CLOCK
A/D
CPU Core Clock Symbol
Converter
Figure 119. A/D Converter clock
17.7. ADC Standby Mode
When the ADC is not used, it is possible to set it in standby mode by clearing bit ADEN in ADCON register.
In this mode the power dissipation is about 1uW.
Rev.A - May 17, 2001
117
Preliminary