MC908QY2AVDWER Freescale Semiconductor, MC908QY2AVDWER Datasheet - Page 47
MC908QY2AVDWER
Manufacturer Part Number
MC908QY2AVDWER
Description
IC MCU 8BIT 1.5K FLASH 16SOIC
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908QY4MDWER.pdf
(184 pages)
Specifications of MC908QY2AVDWER
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Peripherals
LVD, POR, PWM
Number Of I /o
13
Program Memory Size
1.5KB (1.5K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 6x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
16-SOIC (0.300", 7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Connectivity
-
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3.7.2 ADC Data Register
One 8-bit result register is provided. This register is updated each time an ADC conversion completes.
3.7.3 ADC Input Clock Register
This register selects the clock frequency for the ADC.
ADIV2–ADIV0 — ADC Clock Prescaler Bits
Freescale Semiconductor
ADIV2, ADIV1, and ADIV0 form a 3-bit field which selects the divide ratio used by the ADC to generate
the internal ADC clock.
should be set between f
entire conversion time (maximum = 17 ADC clock cycles).
Address: $003E
Address: $003F
Reset:
Reset:
Read:
Read:
Write:
Write:
ADIV2
Bit 7
AD7
Bit 7
0
X = don’t care
ADIV2
Table 3-2
Figure 3-5. ADC Input Clock Register (ADICLK)
ADIC(MIN)
0
0
0
0
1
= Unimplemented
= Unimplemented
ADIV1
Figure 3-4. ADC Data Register (ADR)
MC68HC908QY/QT Family Data Sheet, Rev. 6
AD6
6
6
0
Table 3-2. ADC Clock Divide Ratio
and f
shows the available clock configurations. The ADC clock frequency
ADIV1
X
0
0
1
1
ADIV0
ADIC(MAX)
AD5
5
5
0
Indeterminate after reset
ADIV0
AD4
. The analog input level should remain stable for the
X
0
1
0
1
4
4
0
0
AD3
3
3
0
0
ADC Clock Rate
Bus clock ÷ 16
Bus clock ÷ 1
Bus clock ÷ 2
Bus clock ÷ 4
Bus clock ÷ 8
AD2
2
2
0
0
AD1
1
1
0
0
Input/Output Registers
Bit 0
AD0
Bit 0
0
0
47
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