MC68HC908JL8CDW Freescale Semiconductor, MC68HC908JL8CDW Datasheet - Page 145
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MC68HC908JL8CDW
Manufacturer Part Number
MC68HC908JL8CDW
Description
IC MCU 8K FLASH 8MHZ 28-SOIC
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908JL8CDWER.pdf
(212 pages)
Specifications of MC68HC908JL8CDW
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI
Peripherals
LED, LVD, POR, PWM
Number Of I /o
23
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 13x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MC68HC908JL8CDW
Manufacturer:
MOTOROLA/摩托罗拉
Quantity:
20 000
Part Number:
MC68HC908JL8CDWE
Manufacturer:
FREESCALE
Quantity:
20 000
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Chapter 10
Analog-to-Digital Converter (ADC)
10.1 Introduction
This section describes the 13-channel, 8-bit linear successive approximation analog-to-digital converter
(ADC).
10.2 Features
Features of the ADC module include:
10.3 Functional Description
Thirteen ADC channels are available for sampling external sources at pins PTB0–PTB7, PTD0–PTD3,
and ADC12/T2CLK. An analog multiplexer allows the single ADC converter to select one of the 13 ADC
channels as ADC voltage input (ADCVIN). ADCVIN is converted by the successive approximation
register-based counters. The ADC resolution is 8 bits. When the conversion is completed, ADC puts the
result in the ADC data register and sets a flag or generates an interrupt.
Figure 10-2
Freescale Semiconductor
Addr.
$003C
$003D
$003E
•
•
•
•
•
13 channels with multiplexed input
Linear successive approximation with monotonicity
8-bit resolution
Single or continuous conversion
Conversion complete flag or conversion complete interrupt
ADC Input Clock Register
ADC Status and Control
Register Name
shows a block diagram of the ADC.
ADC Data Register
MC68HC908JL8/JK8 • MC68HC08JL8/JK8 • MC68HC908KL8 Data Sheet, Rev. 3.1
(ADICLK)
(ADSCR)
Register
(ADR)
Reset:
Reset:
Reset:
Read:
Read:
Read:
Write:
Write:
Write:
Figure 10-1. ADC I/O Register Summary
COCO
ADIV2
Bit 7
AD7
0
0
ADIV1
AIEN
AD6
6
0
0
ADCO
ADIV0
AD5
5
0
0
Indeterminate after reset
ADCH4
AD4
4
1
0
0
ADCH3
AD3
3
1
0
0
ADCH2
AD2
2
1
0
0
ADCH1
AD1
1
1
0
0
ADCH0
Bit 0
AD0
1
0
0
145
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