MC908LJ12CFBE Freescale Semiconductor, MC908LJ12CFBE Datasheet - Page 348

• Manufacturer Part Number: MC908LJ12CFBE
• Description: IC MCU 12K FLASH 8MHZ 52-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908LJ12CFBE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: IRSCI, SPI
• Peripherals: LCD, LVD, POR, PWM
• Number Of I /o: 20
• Program Memory Size: 12KB (12K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 52-LQFP
• Processor Series: HC08LJ
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: SCI/SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 4
• Operating Supply Voltage: 3.3 V, 5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: FSICEBASE, M68EML08LJLKE, ZK-HC08LX-A, M68CBL05CE
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 6-ch x 10-bit
• Controller Family/series: HC08
• No. Of I/o's: 20
• Ram Memory Size: 512Byte
• Cpu Speed: 8MHz
• No. Of Timers: 2
• Embedded Interface Type: SCI, SPI
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Input/Output (I/O) Ports
17.4.2 Data Direction Register B (DDRB)
Technical Data
348
NOTE:
T1CH[1:0] — Timer 1 Channel I/O Bits
T2CH[1:0] — Timer 2 Channel I/O Bits
ADC[5:4] — ADC channels 5 and 4
Care must be taken when reading port B while applying analog voltages
to ADC[5:4] pins. If the appropriate ADC channel is not enabled,
excessive current drain may occur if analog voltages are applied to the
PTBx/ADCx pin, while PTB is read as a digital input. Those ports not
selected as analog input channels are considered digital I/O ports.
LED drive — Direct LED Drive Pins
Data direction register B determines whether each port B pin is an input
or an output. Writing a logic 1 to a DDRB bit enables the output buffer for
the corresponding port B pin; a logic 0 disables the output buffer.
The T1CH1 and T1CH0 pins are the TIM1 input capture/output
compare pins. The edge/level select bits, ELSxB:ELSxA, determine
whether the PTB2/T1CH0 and PTB3/T1CH1 pins are timer channel
I/O pins or general-purpose I/O pins. See
Interface Module
The T2CH1 and T2CH0 pins are the TIM1 input capture/output
compare pins. The edge/level select bits, ELSxB:ELSxA, determine
whether the PTB4/T2CH0 and PTB5/T2CH1 pins are timer channel
I/O pins or general-purpose I/O pins. See
Interface Module
ADC[5:4] 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
PTB0–PTB5 pins can be configured for direct LED drive. See
Port B LED Control Register
Input/Output (I/O) Ports
(TIM).
(TIM).
(LEDB).
Section 11. Timer
Section 11. Timer
(ADC).
MC68HC908LJ12
Freescale Semiconductor
—
17.4.3
Rev. 2.1