MC68HC08JB1 Datasheet, PDF (26/216 Pages) Motorola, Inc – Microcontrollers

M68HC08 CPU
CPU
REGISTERS
ARITHMETIC/LOGIC
UNIT (ALU)
CONTROL AND STATUS REGISTERS — 64 BYTES
USER ROM — 5,632 BYTES
INTERNAL BUS
KEYBOARD INTERRUPT
MODULE
TIMER INTERFACE
MODULE
USER RAM — 128 BYTES
OSC1
OSC2
(1), (2) _RST
(1), (3) _IRQ
V_DD
V_SS
V_REG
3.3 V
MONITOR ROM — 464 BYTES
USER VECTORS — 16 BYTES
LOW VOLTAGE INHIBIT
MODULE
OSCILLATOR
SYSTEM INTEGRATION
MODULE
IRQ
MODULE
POWER
POWER-ON RESET
MODULE
COMPUTER OPERATING PROPERLY
MODULE
USB
MODULE
USB ENDPOINT 0, 1, 2
INTERNAL VOLTAGE REGULATOR
(1) Pins have 5V logic.
(2) Pin has integrated pullup device.
(3) Pins have software configurable pullup device.
(4) Pin is open-drain when configured as output.
(5) Pins have 10mA sink capability.
(6) Pin has 50mA sink capability.
Figure 1-1. MCU Block Diagram
PTA7/KBA7 ⁽³⁾
:
PTA0/KBA0 ⁽³⁾
PTC0 ⁽³⁾
PTD0/1^{(4) (6)}
PTE4/D– ^{(3) (4) (5)}
PTE3/D+ ^{(3) (4) (5)}
PTE1/TCH0 ⁽³⁾