MC908JB16DWE Datasheet, PDF (32/332 Pages) Freescale Semiconductor, Inc – Microcontrollers

M68HC08 CPU
CPU
REGISTERS
ARITHMETIC/LOGIC
UNIT (ALU)
CONTROL AND STATUS REGISTERS — 64 BYTES
USER FLASH MEMORY — 16,384 BYTES
USER RAM — 384 BYTES
MONITOR ROM — 1,472 BYTES
USER FLASH VECTORS — 48 BYTES
(1) _OSC1
(1) _OSC2
OSCILLATOR
(5) _CGMXFC1
(1), (5) _CGMOUT1
(5) _CGMXFC2
(1), (5) _CGMOUT2
(2) _RST
(3) _IRQ
DUAL CLOCK
GENERATOR MODULE
SYSTEM INTEGRATION
MODULE
IRQ
MODULE
INTERNAL BUS
KEYBOARD INTERRUPT
MODULE
BREAK
MODULE
SERIAL COMMUNICATIONS
INTERFACE MODULE
LOW VOLTAGE INHIBIT
MODULE
POWER-ON RESET
MODULE
COMPUTER OPERATING
PROPERLY MODULE
2-CHANNEL TIMER INTERFACE
MODULE 1
2-CHANNEL TIMER INTERFACE
MODULE 2
USB MODULE
USB ENDPOINT 0, 1, 2
V_DD
V_SS
V_REG (3.3V)
(5) _VDDA
(5) _VSSA0
(5) _VSSA1
(5)
(5)
V_REGA0
V_REGA1
(3.3
(3.3
V)
V)
POWER AND INTERNAL
VOLTAGE REGULATORS
(1) Pins have 3V 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 available on 32-pin package only.
(6) Pins available on 28-pin package only.
Figure 1-1. MC68HC908JB16 MCU Block Diagram
PTA7:/KBA7 ₍₃₎
PTA0/KBA0
PTC1/RxD ⁽³⁾
PTC0/TxD ⁽³⁾
PTD5 ^{(4), (6)}
PTD4 ^{(4), (6)}
PTD3 ^{(4), (6)}
PTD2 ^{(4), (6)}
PTD1 ^{(4), (6)}
PTD0 ⁽⁴⁾
PTE4/D– ^{(3), (4)}
PTE3/D+ ^{(3), (4)}
PTE2/T2CH01 ⁽³⁾
PTE1/T1CH01 ⁽³⁾
PTE0/TCLK ⁽³⁾