参数资料
型号: MC68HRC705JP7CP
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP28
封装: PLASTIC, DIP-28
文件页数: 35/164页
文件大小: 1165K
代理商: MC68HRC705JP7CP
MC68HC705JJ7 MC68HC705JP7 Advance Information Data Sheet, Rev. 4.1
Freescale Semiconductor
13
Chapter 1
General Description
1.1 Introduction
The MC68HC705JJ7 and MC68HC705JP7 are erasable programmable read-only memory (EPROM)
versions of the MC68HC05JJ/JP Family of microcontrollers (MCU).
1.2 Features
Features of the two parts include:
Low-cost, M68HC05 core MCU in 20-pin package (MC68HC705JJ7) or 28-pin package
(MC68HC705JP7)
6160 bytes of user EPROM, including 16 bytes of user vectors
224 bytes of low-power user random-access memory (RAM)
64 bits of personality EPROM (serial access)
16-bit programmable timer with input capture and output compare
15-stage core timer, including 8-bit free-running counter and 4-stage selectable real-time interrupt
generator
Simple serial input/output port (SIOP) with interrupt capability
Two voltage comparators, one of which can be combined with the 16-bit programmable timer to
create a 4-channel, single-slope analog-to-digital (A/D) converter
Output of voltage comparator can drive port pin PB4 directly under software control
14 input/output (I/O) lines (MC68HC705JJ7) or 22 I/O lines (MC68HC705JP7), including
high-source/sink current capability on 6 I/O pins (MC68HC705JJ7) or 14 I/O pins
(MC68HC705JP7)
Programmable 8-bit mask option register (MOR) to select mask options found in read-only memory
(ROM) based versions
MOR selectable software programmable pulldowns on all I/O pins and keyboard scan interrupt on
four I/O pins
Software mask and request bit for IRQ interrupt with MOR selectable sensitivity on IRQ interrupt
(edge- and level-sensitive or edge-only)
On-chip oscillator with device option of crystal/ceramic resonator or resistor-capacitor (RC)
operation and MOR selectable shunt resistor, 2 M
by design
Internal oscillator for lower-power operation, approximately 100 kHz (500 kHz selected as device
option)
EPROM security bit(1) to aid in locking out access to programmable EPROM array
MOR selectable computer operating properly (COP) watchdog system
1. No security feature is absolutely secure. However, Freescale’s strategy is to make reading or copying the EPROM/OTPROM
difficult for unauthorized users.
相关PDF资料
PDF描述
MC68HC705SP7CP 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP28
MC68HC705JP7CDW 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28
MC68HC705JJ7CDW 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO20
MC68HC705JJ7CP 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP20
MC68HC705JJ7S 8-BIT, UVPROM, 2.1 MHz, MICROCONTROLLER, CDIP20
相关代理商/技术参数
参数描述
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