mc68hc908jb16 Freescale Semiconductor, Inc, mc68hc908jb16 Datasheet - Page 32

• Manufacturer Part Number: mc68hc908jb16
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

(5)
(1), (5)
(1), (5)
(5)
V
V
(5)
(5)
REGA1
REGA0
V
CGMOUT1
CGMOUT2
CGMXFC1
CGMXFC2
REG
(1)
(5)
(5)
(1)
(5)
(2)
(3)
(3.3V)
(3.3V)
(3.3V)
OSC1
OSC2
V
V
V
SSA0
SSA1
RST
IRQ
V
V
DDA
CONTROL AND STATUS REGISTERS — 64 BYTES
DD
SS
REGISTERS
USER FLASH MEMORY — 16,384 BYTES
CPU
USER FLASH VECTORS — 48 BYTES
MONITOR ROM — 1,472 BYTES
USER RAM — 384 BYTES
M68HC08 CPU
VOLTAGE REGULATORS
SYSTEM INTEGRATION
POWER AND INTERNAL
GENERATOR MODULE
DUAL CLOCK
OSCILLATOR
ARITHMETIC/LOGIC
MODULE
MODULE
IRQ
UNIT (ALU)
Figure 1-1. MC68HC908JB16 MCU Block Diagram
(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.
2-CHANNEL TIMER INTERFACE
2-CHANNEL TIMER INTERFACE
SERIAL COMMUNICATIONS
COMPUTER OPERATING
KEYBOARD INTERRUPT
LOW VOLTAGE INHIBIT
INTERFACE MODULE
USB ENDPOINT 0, 1, 2
PROPERLY MODULE
POWER-ON RESET
INTERNAL BUS
USB MODULE
MODULE 1
MODULE 2
MODULE
MODULE
MODULE
MODULE
BREAK
PTA7/KBA7
PTA0/KBA0
PTC1/RxD
PTC0/TxD
PTD5
PTD4
PTD3
PTD2
PTD1
PTD0
PTE4/D–
PTE3/D+
PTE2/T2CH01
PTE1/T1CH01
PTE0/TCLK
:
(4), (6)
(4), (6)
(4), (6)
(4), (6)
(4), (6)
(4)
(3), (4)
(3), (4)
(3)
(3)
(3)
(3)
(3)
(3)