IC MCU 1.5K FLASH 16-TSSOP

MC68HC908QY1VDTE

Manufacturer Part NumberMC68HC908QY1VDTE
DescriptionIC MCU 1.5K FLASH 16-TSSOP
ManufacturerFreescale Semiconductor
SeriesHC08
MC68HC908QY1VDTE datasheet
 


Specifications of MC68HC908QY1VDTE

Core ProcessorHC08Core Size8-Bit
Speed8MHzPeripheralsLVD, POR, PWM
Number Of I /o13Program Memory Size1.5KB (1.5K x 8)
Program Memory TypeFLASHRam Size128 x 8
Voltage - Supply (vcc/vdd)2.7 V ~ 5.5 VOscillator TypeInternal
Operating Temperature-40°C ~ 105°CPackage / Case16-TSSOP
Processor SeriesHC08QCoreHC08
Data Bus Width8 bitData Ram Size128 B
Maximum Clock Frequency8 MHzNumber Of Programmable I/os14
Number Of Timers2Maximum Operating Temperature+ 105 C
Mounting StyleSMD/SMTDevelopment Tools By SupplierFSICEBASE, M68CBL05AE, DEMO908QB8, DEMO908QC16
Minimum Operating Temperature- 40 CLead Free Status / RoHS StatusLead free / RoHS Compliant
Eeprom Size-Data Converters-
Connectivity-  
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Chapter 3
Analog-to-Digital Converter (ADC)
3.1 Introduction
This section describes the analog-to-digital converter (ADC). The ADC is an 8-bit, 4-channel analog-to-
digital converter. The ADC module is only available on the MC68HC908QY2, MC68HC908QT2,
MC68HC908QY4, and MC68HC908QT4.
3.2 Features
Features of the ADC module include:
4 channels with multiplexed input
Linear successive approximation with monotonicity
8-bit resolution
Single or continuous conversion
Conversion complete flag or conversion complete interrupt
Selectable ADC clock frequency
3.3 Functional Description
Four ADC channels are available for sampling external sources at pins PTA0, PTA1, PTA4, and PTA5.
An analog multiplexer allows the single ADC converter to select one of the four ADC channels as an ADC
voltage input (ADCVIN). ADCVIN is converted by the successive approximation register-based counters.
The ADC resolution is eight bits. When the conversion is completed, ADC puts the result in the ADC data
register and sets a flag or generates an interrupt.
Figure 3-2
shows a block diagram of the ADC.
3.3.1 ADC Port I/O Pins
PTA0, PTA1, PTA4, and PTA5 are general-purpose I/O pins that are shared with the ADC channels. The
channel select bits (ADC status and control register (ADSCR), $003C), define which ADC channel/port
pin will be used as the input signal. The ADC overrides the port I/O logic by forcing that pin as input to the
ADC. The remaining ADC channels/port pins are controlled by the port I/O logic and can be used as
general-purpose I/O. Writes to the port register or data direction register (DDR) will not have any affect
on the port pin that is selected by the ADC. Read of a port pin which is in use by the ADC will return a 0
if the corresponding DDR bit is at 0. If the DDR bit is at 1, the value in the port data latch is read.
Freescale Semiconductor
MC68HC908QY/QT Family Data Sheet, Rev. 6
41