MC68HC908JB8 Datasheet, PDF (271/286 Pages) Motorola, Inc – MICROCONTROLLERS

M68HC08 CPU
CPU
REGISTERS
ARITHMETIC/LOGIC
UNIT (ALU)
CONTROL AND STATUS REGISTERS — 64 BYTES
USER ROM — 8,192 BYTES
INTERNAL BUS
KEYBOARD INTERRUPT
MODULE
TIMER INTERFACE
MODULE
USER RAM — 256 BYTES
MONITOR ROM — 464 BYTES
USER ROM VECTORS — 16 BYTES
BREAK
MODULE
LOW VOLTAGE INHIBIT
MODULE
OSC1
OSC2
OSCILLATOR
POWER-ON RESET
MODULE
(1), (2) _RST
(1), (3) _IRQ
V_DD
V_SS
V_REG
(3.3 V)
SYSTEM INTEGRATION
MODULE
IRQ
MODULE
POWER
COMPUTER OPERATING PROPERLY
MODULE
USB
MODULE
USB ENDPOINT 0, 1, 2
INTERNAL VOLTAGE REGULATOR
(1) Pins have 5V logic.
(2) Pins have integrated pullup device.
(3) Pins have software configurable pull-up device.
(4) Pins are open-drain when configured as output.
(5) Pins have 10mA sink capability.
(6) Pins have 25mA sink capability.
Shaded blocks indicate differences to MC68HC908JB8
Figure A-1. MC68HC08JB8 Block Diagram
PTA7/KBA7 ⁽³⁾
:
PTA0/KBA0 ⁽³⁾
PTB7–PTB0 ⁽³⁾
PTC7–PTC0 ⁽³⁾
PTD7–PTD6 ⁽⁴⁾
PTD5–PTD2 ^{(4) (5)}
PTD1–PTD0 ^{(4) (6)}
PTE4/D– ^{(3) (4) (5)}
PTE3/D+ ^{(3) (4) (5)}
PTE2/TCH1 ⁽³⁾
PTE1/TCH0 ⁽³⁾
PTE0/TCLK ⁽³⁾