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參數(shù)資料
| 型號(hào)： | MC68HC08JK8CDW |
| 廠商： | 飛思卡爾半導(dǎo)體(中國(guó))有限公司 |
| 英文描述： | Microcontrollers |
| 中文描述： | 微控制器 |
| 文件頁(yè)數(shù)： | 2/8頁(yè) |
| 文件大小： | 283K |
| 代理商： | MC68HC08JK8CDW |
HC908JL8AD/D
Addendum to MC68HC908JL8 Technical Data
For More Information On This Product,
Go to: www.freescale.com
MCU Block Diagram
Figure 1
shows the block diagram of the MC68HC08JL8.
Memory Map
The MC68HC08JL8 has 8,192 bytes of user ROM from $DC00 to $FBFF, and
36 bytes of user ROM vectors from $FFDC to $FFFF. On the MC68HC908JL8,
these memory locations are FLASH memory.
Figure 2
shows the memory map of the MC68HC08JL8.
Figure 1. MC68HC08JL8 Block Diagram
SYSTEM INTEGRATION
MODULE
ARITHMETIC/LOGIC
UNIT (ALU)
CPU
REGISTERS
M68HC08 CPU
CONTROL AND STATUS REGISTERS — 64 BYTES
EXTERNAL INTERRUPT
MODULE
INTERNAL BUS
*
RST
*
IRQ
POWER
VSS
2-CHANNEL TIMER INTERFACE
MODULE 1
KEYBOARD INTERRUPT
MODULE
8-BIT ANALOG-TO-DIGITAL
CONVERTER MODULE
VDD
ADC REFERENCE
D
P
PTB7/ADC7
PTB6/ADC6
PTB5/ADC5
PTB4/ADC4
PTB3/ADC3
PTB2/ADC2
PTB1/ADC1
PTB0/ADC0
D
P
PTA6/KBI6**
￥
PTA5/KBI5**
PTA4/KBI4**
PTA3/KBI3**
PTA2/KBI2**
PTA1/KBI1**
PTA0/KBI0**
POWER-ON RESET
MODULE
*
Pin contains integrated pull-up device.
**
Pin contains programmable pull-up device.
25mA open-drain if output pin.
LED direct sink pin.
￥ Shared pin: OSC2/RCCLK/PTA6/KBI6.
OSC1
￥
OSC2/RCCLK
CRYSTAL OSCILLATOR
RC OSCILLATOR
D
P
PTD7/RxD
**
PTD6/TxD
**
PTD5/T1CH1
PTD4/T1CH0
PTD3/ADC8
PTD2/ADC9
PTD1/ADC10
PTD0/ADC11
BREAK
MODULE
COMPUTER OPERATING
PROPERLY MODULE
#
Pins available on 32-pin packages only.
##
Pins available on 28-pin and 32-pin packages only.
PTA7/KBI7**
LOW-VOLTAGE INHIBIT
MODULE
SERIAL COMMUNICATIONS
INTERFACE MODULE
P
D
PTE1/T2CH1
PTE0/T2CH0
INTERNAL OSCILLATOR
ADC12/T2CLK
2-CHANNEL TIMER INTERFACE
MODULE 2
USER RAM — 256 BYTES
MONITOR ROM — 447 BYTES
#
##
#
##
#
USER ROM — 8,192 BYTES
USER ROM VECTORS — 36 BYTES
Shaded blocks indicate differences to MC68HC908JL8
F
Freescale Semiconductor, Inc.
n
.
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