參數(shù)資料
型號(hào): MC68HC705PL4BCSD
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 2.56 MHz, MICROCONTROLLER, PDSO28
封裝: SSOP-28
文件頁數(shù): 4/98頁
文件大?。?/td> 1019K
代理商: MC68HC705PL4BCSD
GENERAL RELEASE SPECIFICATION
April 30, 1998
MOTOROLA
GENERAL DESCRIPTION
MC68HC05PL4
1-2
REV 2.0
1.2
MCU BLOCK DIAGRAM
Figure 1-1. MC68HC05PL4 Block Diagram
NOTE
A line over a signal name indicates an active low signal. Any reference to voltage,
current, or frequency specied in the following sections will refer to the nominal
values. The exact values and their tolerance or limits are specied in Electrical
Specications section.
USER ROM - 4k BYTES
USER RAM - 256 BYTES
ACCUMULATOR
INDEX REGISTER
STACK POINTER
PROGRAM COUNTER
CONDITION CODE REGISTER
M68HC05
CPU
RESET
0
12
1
1 H I NZC
OSC
POWER
OSC1
VDD
VSS
DDR
B
POR
T
B
PB4- PB7
4
1 1
7
0
7
50
1
0
4
15
0
7
DDR
A
POR
T
A
KEYBOARD
INTERRUPT
WATCHDOG
SYSTEM
PA6
PA5
PA4
PA3/TCMP
PA2/TCAP
PA1/DTMF
PA0
4
16-BIT
PROGRAMMABLE TIMER
VERY LOW
FREQUENCY OSC
(RC: 500kHz or 20kHz)
(
÷ N OPTIONAL)
DTMF
MODULE
LED/IRQ
LED
DRIVE
DDR
C
POR
T
C
PC0 - PC7
8
8-BIT RELOADABLE
EVENT TIMER
PB0/KBI0
PB1/KBI1
PB2/KBI2
PB3/KBI3
OSC2
Available on MC68HC05PL4B only.
Available on MC68HC05PL4 only.
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