T89C51CC02 Atmel, T89C51CC02 Datasheet - Page 115

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

Rev.A - May 17, 2001
Figure 118 shows the timing diagram of a complete conversion. For simplicity, the figure depicts the waveforms
in idealized form and do not provide precise timing information. For ADC characteristics and timing parameters
refer to the Section “AC Characteristics” of the T89C51CC02 datasheet.
NOTE:
Tsetup = 4 us
Tconv=11 clock ADC
AN0/P1.0
AN1/P1.1
AN2/P1.2
AN3/P1.3
AN4/P1.4
AN5/P1.5
AN6/P1.6
AN7/P1.7
ADEOC
ADSST
ADEN
CLK
CLOCK
ADC
ADCON.2
SCH2
T
000
001
010
011
100
101
110
111
SETUP
ADCON.1
SCH1
ADCON.5
ADEN
Sample and Hold
CONTROL
ADCON.0
SCH0
AVSS
ADCON.3
ADSST
Figure 117. ADC Description
Figure 118. Timing Diagram
Preliminary
ADCIN
+
-
T
CONV
VAREF
ADEOC
ADCON.4
R/2R DAC
VAGND
SAR
T89C51CC02
EADC
IEN1.1
10
8
2
ADDH
ADDL
ADC
Interrupt
Request
115