MC908SR12CFAE Freescale Semiconductor, MC908SR12CFAE Datasheet - Page 328
![IC MCU 12K FLASH 8MHZ 48-LQFP](/photos/12/45/124574/mc908sr12cfae_sml.jpg)
MC908SR12CFAE
Manufacturer Part Number
MC908SR12CFAE
Description
IC MCU 12K FLASH 8MHZ 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908SR12MFAE.pdf
(404 pages)
Specifications of MC908SR12CFAE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, SCI
Peripherals
LVD, POR, PWM, Temp Sensor
Number Of I /o
31
Program Memory Size
12KB (12K x 8)
Program Memory Type
FLASH
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 14x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Input/Output (I/O) Ports
Data Sheet
328
NOTE:
PWM[2:0] — PWM Channels 0 to 2
ATD[12:8] — ADC channels 8 to 12
Care must be taken when reading port C while applying analog voltages
to ATD[12:8] pins. If the appropriate ADC channel is not enabled,
excessive current drain may occur if analog voltages are applied to the
PTCx/ATDx pin, while PTC is read as a digital input. Those ports not
selected as analog input channels are considered digital I/O ports.
CD — Current Detect Output Pin
LED drive — Direct LED drive Pins
PWM[2:0] are pins used for the output channels from the pulse width
modulator (PWM) module. The PWM enables bit, PCH[2:0], in the
PWM control register define which port pin will be used as a PWM
output and overrides any control from the port I/O logic. The PWM0
function on PCT0/PWM0/CD pin can be overrided by the CD output
function. See
ATD[12:8] are pins used for the input channels to the analog-to-digital
converter module. The channel select bits, ADCH[4:0], in the ADC
status and control register define which port pin will be used as an
ADC input and overrides any control from the port I/O logic. See
Section 15. Analog-to-Digital Converter
The CD pin is used for the current detect output from the analog
module. The pin reflects the status of the current detect interrupt flag.
The current detect output enable bit, CDOEN, in the configuration
register 2 enables the PTC0/PWM0/CD pin as the CD output pin and
overrides any control from the port I/O or PWM logic. See
Analog
PTC7–PTC3 pins can be configured for direct LED drive. See
Port C LED Control Register
PTC0/PWM0/CD
Pin
Module.
Input/Output (I/O) Ports
Section 13. Pulse Width Modulator
Table 18-5. PTC0 Pin Configuration
CDOEN Bit
($001D)
0
0
1
MC68HC908SR12•MC68HC08SR12 — Rev. 5.0
(LEDC).
PCH0 Bit
($0051)
X
0
1
(ADC).
Freescale Semiconductor
(PWM).
Pin function
PWM0
PTC0
CD
Section 14.
18.5.3
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