MC68HC16Z1MAG16 Freescale Semiconductor, MC68HC16Z1MAG16 Datasheet - Page 198
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MC68HC16Z1MAG16
Manufacturer Part Number
MC68HC16Z1MAG16
Description
IC MPU 16BIT 16MHZ 144-LQFP
Manufacturer
Freescale Semiconductor
Series
HC16r
Datasheet
1.MC68HC16Z1VEH16.pdf
(500 pages)
Specifications of MC68HC16Z1MAG16
Core Processor
CPU16
Core Size
16-Bit
Speed
16MHz
Connectivity
EBI/EMI, SCI, SPI
Peripherals
POR, PWM, WDT
Number Of I /o
16
Program Memory Type
ROMless
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
144-LQFP
Processor Series
HC16Z
Core
CPU16
Data Bus Width
16 bit
Data Ram Size
1 KB
Interface Type
SCI, QSPI
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
16
Number Of Timers
2
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68HC16Z1MAG16
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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8.7.6 Conversion Timing
8-12
Total conversion time is made up of initial sample time, transfer time, final sample time,
and resolution time. Initial sample time is the time during which a selected input chan-
nel is connected to the sample buffer amplifier through a sample capacitor. During
transfer time, the sample capacitor is disconnected from the multiplexer, and the RC
DAC array is driven by the sample buffer amp. During final sampling time, the sample
capacitor and amplifier are bypassed, and the multiplexer input charges the RC DAC
array directly. During resolution time, the voltage in the RC DAC array is converted to
a digital value, and the value is stored in the SAR.
Initial sample time and transfer time are fixed at two ADC clock cycles each. Final sam-
ple time can be 2, 4, 8, or 16 ADC clock cycles, depending on the value of the STS
field in ADCTL0. Resolution time is ten cycles for 8-bit conversion and twelve cycles
for 10-bit conversion.
Transfer and resolution require a minimum of 16 ADC clocks (8 s with a 2.1 MHz ADC
clock) for 8-bit resolution or 18 ADC clocks (9 s with a 2.1 MHz ADC clock) for 10-bit
resolution. If maximum final sample time (16 ADC clocks) is used, total conversion
time is 15 s for an 8-bit conversion or 16 s for a 10-bit conversion (with a 2.1 MHz
ADC clock).
Figures 8-2
These diagrams assume a final sampling period of two ADC clocks.
SAMPLE
INITIAL
TIME
CH 1
SCF FLAG SET HERE AND SEQUENCE
1
SAMPLE AND TRANSFER
and
ENDS IF IN THE 4-CHANNEL MODE
TRANSFER
6 CYCLES
PERIOD
8-3
TIME
CH 2
Freescale Semiconductor, Inc.
illustrate the timing for 8- and 10-bit conversions, respectively.
Figure 8-2 8-Bit Conversion Timing
For More Information On This Product,
(2 ADC CLOCKS)
ANALOG-TO-DIGITAL CONVERTER
SAMPLE
FINAL
TIME
CH 3
Go to: www.freescale.com
CYCLES
CH 4
SAR7
2
CYCLE
SUCCESSIVE APPROXIMATION
SAR6
1
CH 5
SCF FLAG SET HERE AND SEQUENCE
RESOLUTION TIME
CYCLE
SAR5
ENDS IF IN THE 8-CHANNEL MODE
1
SEQUENCE
CYCLE
SAR4
1
CH 6
CYCLE
SAR3
1
CYCLE
SAR2
1
CH 7
CYCLE
SAR1
TRANSFER CONVERSION TO
RESULT REGISTER AND SET
1
CYCLE
SAR0
1
CH 8
M68HC16 Z SERIES
CYCLE
END
USER’S MANUAL
CCF
EOC
1
16
16 ADC 8-BIT TIM 1
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