MC908AP16CFAE Freescale Semiconductor, MC908AP16CFAE Datasheet - Page 86
![IC MCU 16K FLASH 8MHZ 48-LQFP](/photos/19/7/190723/4134800_sml.jpg)
MC908AP16CFAE
Manufacturer Part Number
MC908AP16CFAE
Description
IC MCU 16K FLASH 8MHZ 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheets
1.MC908AP8CFBE.pdf
(324 pages)
2.MC908AP16ACFBER.pdf
(316 pages)
3.MC908AP16CFAE.pdf
(322 pages)
Specifications of MC908AP16CFAE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, IRSCI, SCI, SPI
Peripherals
LED, LVD, POR, PWM
Number Of I /o
32
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
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 ~ 85°C
Package / Case
48-LQFP
Controller Family/series
HC08
No. Of I/o's
32
Ram Memory Size
1KB
Cpu Speed
8MHz
No. Of Timers
2
Embedded Interface Type
I2C, SCI, SPI
Rohs Compliant
Yes
Processor Series
HC08AP
Core
HC08
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
SCI, SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
32
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Development Tools By Supplier
FSICEBASE, DEMO908AP64E, M68CBL05CE
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC908AP16CFAE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MC908AP16CFAE
Manufacturer:
FREESCALE
Quantity:
20 000
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Clock Generator Module (CGM)
6.3.7 Special Programming Exceptions
The programming method described in
exceptions. A value of 0 for R, N, or L is meaningless when used in the equations given. To account for
these exceptions:
(See
6.3.8 Base Clock Selector Circuit
This circuit is used to select either the oscillator clock, CGMXCLK, or the divided VCO clock, CGMPCLK,
as the source of the base clock, CGMOUT. The two input clocks go through a transition control circuit that
waits up to three CGMXCLK cycles and three CGMPCLK cycles to change from one clock source to the
other. During this time, CGMOUT is held in stasis. The output of the transition control circuit is then
divided by two to correct the duty cycle. Therefore, the bus clock frequency, which is one-half of the base
clock frequency, is one-fourth the frequency of the selected clock (CGMXCLK or CGMPCLK).
The BCS bit in the PLL control register (PCTL) selects which clock drives CGMOUT. The divided VCO
clock cannot be selected as the base clock source if the PLL is not turned on. The PLL cannot be turned
off if the divided VCO clock is selected. The PLL cannot be turned on or off simultaneously with the
selection or deselection of the divided VCO clock. The divided VCO clock also cannot be selected as the
base clock source if the factor L is programmed to a 0. This value would set up a condition inconsistent
with the operation of the PLL, so that the PLL would be disabled and the oscillator clock would be forced
as the source of the base clock.
6.3.9 CGM External Connections
In its typical configuration, the CGM requires up to four external components.
Figure 6-3
86
•
•
•
•
6.3.8 Base Clock Selector
A 0 value for R or N is interpreted exactly the same as a value of 1.
A 0 value for L disables the PLL and prevents its selection as the source for the base clock.
Bypass capacitor, C
Filter network
shows the external components for the PLL:
29.4912 MHz
19.6608 MHz
CGMVCLK
32 MHz
16 MHz
32 MHz
16 MHz
32 MHz
16 MHz
BYP
29.4912 MHz
19.6608 MHz
CGMPCLK
32 MHz
16 MHz
32 MHz
16 MHz
32 MHz
16 MHz
Circuit.)
MC68HC908AP A-Family Data Sheet, Rev. 3
Table 6-1. Numeric Examples
6.3.6 Programming the PLL
7.3728 MHz
4.9152 MHz
8.0 MHz
4.0 MHz
8.0 MHz
4.0 MHz
8.0 MHz
4.0 MHz
f
BUS
4.9152 MHz
4.9152 MHz
2 MHz
2 MHz
4 MHz
4 MHz
8 MHz
8 MHz
f
RCLK
does not account for three possible
R
1
1
1
1
1
1
1
1
10
N
8
8
4
4
2
6
4
P
0
0
0
0
0
0
0
0
Freescale Semiconductor
E
2
1
2
1
2
1
2
2
3C
40
40
40
40
40
40
27
L
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