參數(shù)資料
型號: MC68HRC705KJ1CS
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, UVPROM, 4 MHz, MICROCONTROLLER, CDIP16
封裝: WINDOWED, CERDIP-16
文件頁數(shù): 24/117頁
文件大小: 1644K
代理商: MC68HRC705KJ1CS
Introduction
Data Sheet
MC68HC705KJ1MC68HRC705KJ1MC68HLC705KJ1 — Rev. 4.0
14
Introduction
MOTOROLA
Internal steering diode and pullup resistor from RESET pin to VDD
Selectable EPROM security(1)
Selectable oscillator bias resistor
1.2 Structure
Figure 1-1. Block Diagram
1. No security feature is absolutely secure. However, Motorola’s strategy is to make reading
or copying the EPROM/OTPROM difficult for unauthorized users.
0 0 0 0 00 00 1 1
WATCHDOG AND
ILLEGAL ADDRESS
DETECT
STATIC RAM (SRAM) – 64 BYTES
ALU
CPU CONTROL
68HC05 CPU
ACCUMULATOR
INDEX REGISTER
STK PTR
PROGRAM COUNTER
CONDITION CODE
REGISTER
15-STAGE
MULTIFUNCTION
TIMER SYSTEM
DIVIDE
INTERNAL
OSCILLATOR
OSC1
OSC2
CPU REGISTERS
USER EPROM – 1240 BYTES
MASK OPTION REGISTER (MOR)
10-mA sink capability on all I/O pins
DATA
DIRECTION
REGISTER
A
DATA
DIRECTION
REGISTER
B
PORT
A
P
ORT
B
PB3(1)
PB2(1)
PA7
PA6
PA5
PA4
PA3(1) (2)
PA2(1) (2)
PA1(1) (2)
PA0(1) (2)
RESET
IRQ/VPP
111 H I N Z C
BY 2
Notes:
1. 5.5 mA source capability
2. External interrupt capability
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