XC68HC12A0CPV8 Freescale Semiconductor, XC68HC12A0CPV8 Datasheet - Page 427
![IC, 16BIT MCU, 68HC12, 8MHZ, TQFP-112](/photos/19/7/190728/4243102_sml.jpg)
XC68HC12A0CPV8
Manufacturer Part Number
XC68HC12A0CPV8
Description
IC, 16BIT MCU, 68HC12, 8MHZ, TQFP-112
Manufacturer
Freescale Semiconductor
Datasheet
1.MC912D60ACFUE8.pdf
(460 pages)
Specifications of XC68HC12A0CPV8
Controller Family/series
68HC12
No. Of I/o's
68
Eeprom Memory Size
1KB
Ram Memory Size
2KB
Cpu Speed
8MHz
No. Of Timers
1
Core Size
16 Bit
Program Memory Size
60KB
Peripherals
ADC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Technical Data — MC68HC912D60A
21.1 Contents
21.2 Introduction
21.3 Practical Aspects For The PLL Usage
21.3.1 Synthesized Bus Frequency
MC68HC912D60A — Rev. 3.1
Freescale Semiconductor
NOTE:
Section 21. Appendix: CGM Practical Aspects
21.2
21.3
21.4
This sections provides useful and practical pieces of information
concerning the implementation of the CGM module.
Starting from a ceramic resonator or quartz crystal frequency F
‘refdv’ and ‘synr’ are the decimal content of the REFDV and SYNR
registers respectively, then the MCU bus frequency will simply be:
It is not allowed to synthesize a bus frequency that is lower than the
crystal frequency, as the correct functioning of some internal
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 427
Printed Circuit Board Guidelines. . . . . . . . . . . . . . . . . . . . . . . 433
Practical Aspects For The PLL Usage . . . . . . . . . . . . . . . . . . 427
Appendix: CGM Practical Aspects
F
BUS
=
synr
refdv
F
VCO
∈
∈
{
=
{
0,1,2,3...63}
0,1,2,3...7}
F
----------------------------------------------- -
XTAL
(
refdv
⋅
(
synr
+
1
)
+
1
)
Technical Data
XTAL
, if
427
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