MC68HC908LJ12 Datasheet, PDF (36/413 Pages) Freescale Semiconductor, Inc – 8-bit microcontroller units

General Description
CPU
REGISTERS
M68HC08 CPU
ARITHMETIC/LOGIC
UNIT (ALU)
CONTROL AND STATUS REGISTERS — 96 BYTES
USER FLASH — 12,288 BYTES
USER RAM — 512 BYTES
MONITOR ROM — 960 BYTES
USER FLASH VECTOR SPACE — 48 BYTES
OSC1
OSC2
CLOCK GENERATOR MODULE
32.768-kHz OSCILLATOR
CGMXFC
PHASE-LOCKED LOOP
* RST
SYSTEM INTEGRATION
MODULE
INTERNAL BUS
KEYBOARD INTERRUPT
MODULE
10-BIT ANALOG-TO-DIGITAL
CONVERTER MODULE
2-CHANNEL TIMER INTERFACE
MODULE 1
2-CHANNEL TIMER INTERFACE
MODULE 2
SERIAL COMMUNICATIONS
INTERFACE MODULE
(WITH INFRARED
ENCODER/DECODER)
REAL TIME CLOCK
MODULE
* IRQ
VDDA
VDD
VSS
VREFH
VREFL
EXTERNAL INTERRUPT
MODULE
LIQUID CRYSTAL DISPLAY
DRIVER MODULE
COMPUTER OPERATING
PROPERLY MODULE
POWER-ON RESET
MODULE
SERIAL PERIPHERAL
INTERFACE MODULE
LOW-VOLTAGE INHIBIT
MODULE
POWER
ADC REFERENCE
* Pin contains integrated pullup device.
** Pin contains integrated pullup device if configured as KBI.
† _{High current sink pin, 15mA.}
‡ _{High current sink pin, 8mA.}
# Pins available on 64-pin packages only.
Figure 1-1. MC68HC908LJ12 Block Diagram
PTA7/ADC3
PTA6/ADC2
PTA5/ADC1
PTA4/ADC0
PTA3/KBI3**
PTA2/KBI2**
PTA1/KBI1**
PTA0/KBI0**
PTB7/ADC5
PTB6/ADC4
PTB5/T2CH1^{‡ #}
PTB4/T2CH0^‡
PTB3/T1CH1^‡
PTB2/T1CH0^‡
PTB1/RxD^†
PTB0/TxD^†
PTC7/FP26
PTC6/FP25
PTC5/FP24
PTC4/FP23
PTC3/FP22
PTC2/FP21
PTC1/FP20
PTC0/FP19
FP1–FP18
BP0–BP2
FP0/BP3
PTD7/KBI7**
PTD6/KBI6**
PTD5/KBI5**
PTD4/KBI4**
PTD3/SPSCK
#
PTD2/MOSI
PTD1/MISO
PTD0/SS
MC68HC908LJ12 — Rev. 2.1
Freescale Semiconductor
General Description
Technical Data
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