MC908LJ12CFBE Freescale Semiconductor, MC908LJ12CFBE Datasheet - Page 232
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MC908LJ12CFBE
Manufacturer Part Number
MC908LJ12CFBE
Description
IC MCU 12K FLASH 8MHZ 52-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC68HC98LJ12CFUE.pdf
(414 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC908LJ12CFBE
Manufacturer:
Freescale Semiconductor
Quantity:
135
Company:
Part Number:
MC908LJ12CFBE
Manufacturer:
SANYO
Quantity:
650
Company:
Part Number:
MC908LJ12CFBE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MC908LJ12CFBE
Manufacturer:
FREESCALE
Quantity:
20 000
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Infrared Serial Communications
13.6 Infrared Functional Description
Technical Data
232
NOTE:
Infrared Serial Communications Interface Module (IRSCI)
The infrared sub-module receives two clock sources from the SCI
module: SCI_R16XCLK and SCI_R32XCLK. Both reference clocks are
used to generate the narrow pulses during data transmission.
The SCI_R16XCLK and SCI_R32XCLK are internal clocks with
frequencies that are 16 and 32 times the baud rate respectively. Both
SCI_R16XCLK and SCI_R32XCLK clocks are used for transmitting
data. The SCI_R16XCLK clock is used only for receiving data.
For proper SCI function (transmit or receive), the bus clock MUST be
programmed to at least 32 times that of the selected baud rate.
When the infrared sub-module is disabled, signals on the TxD and RxD
pins pass through unchanged to the SCI module.
Figure 13-3
The infrared sub-module provides the capability of transmitting narrow
pulses to an infrared LED and receiving narrow pulses and transforming
them to serial bits, which are sent to the SCI module. The infrared sub-
module receives two clocks from the SCI. One of these two clocks is
selected as the base clock to generate the 3/16, 1/16, or 1/32 bit width
narrow pulses during transmission.
SCI_R32XCLK
SCI_R16XCLK
SCI_RxD
SCI_TxD
shows the structure of the infrared sub-module.
Figure 13-3. Infrared Sub-Module Diagram
MUX
IR_RxD
TNP[1:0]
TRANSMIT
ENCODER
DECODER
RECEIVE
IR_TxD
MC68HC908LJ12
Freescale Semiconductor
IREN
MUX
—
Rev. 2.1
TxD
RxD
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