參數(shù)資料
型號(hào)： MC705JP7CPE
廠商： Freescale Semiconductor
文件頁數(shù)： 109/164頁
文件大小： 0K
描述： IC MCU 8BIT 224 BYTES RAM 28PDIP
標(biāo)準(zhǔn)包裝： 13
系列： HC05
核心處理器： HC05
芯體尺寸： 8-位
速度： 2.1MHz
連通性： SIO
外圍設(shè)備： POR，溫度傳感器，WDT
輸入/輸出數(shù)： 22
程序存儲(chǔ)器容量： 6KB（6K x 8）
程序存儲(chǔ)器類型： OTP
RAM 容量： 224 x 8
電壓 - 電源 (Vcc/Vdd)： 2.7 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 4x12b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 28-DIP（0.600"，15.24mm）
包裝： 管件
MC68HC705JJ7 MC68HC705JP7 Advance Information Data Sheet, Rev. 4.1
Freescale Semiconductor
49
Chapter 6
Operating Modes
6.1 Introduction
This section describes the operation of the device with respect to the oscillator source and the low-power
modes:
Stop mode
Wait mode
Halt mode
Data-retention mode
6.2 Oscillator Source
The microcontroller unit (MCU) can be clocked by either an internal low-power oscillator (LPO) without
external components or by an external pin oscillator (EPO) which uses external components. The enable
and selection of the clock source is determined by the state of the oscillator select bits (OM1 and OM2)
in the interrupt status and control register (ISCR) as shown in Figure 6-1.
IRQE — External Interrupt Request Enable Bit
This read/write bit enables external interrupts. Refer to Chapter 4 Interrupts for more details.
OM1 and OM2 — Oscillator Select Bits
These bits control the selection and enabling of the oscillator source for the MCU. One choice is the
internal LPO and the other oscillator is the EPO which is common to most M68HC05 MCU devices.
The EPO uses external components like filter capacitors and a crystal or ceramic resonator and
consumes more power than the LPO. The selection and enable conditions for these two oscillators are
shown in Table 6-1. Reset clears OM1 and sets OM2, which selects the LPO and disables the EPO.
Therefore, the lowest power is consumed when OM1 is cleared. The state with both OM1 and OM2
set is provided so that the EPO can be started up and allowed to stabilize while the LPO still clocks the
MCU.
Address:
$000D
Bit 7
654321
Bit 0
Read:
IRQE
OM2
OM1
0
IRQF
000
Write:
R
IRQR
Reset:
11000000
= Unimplemented
R
= Reserved
Figure 6-1. IRQ Status and Control Register (ISCR)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC705JP7CPE 制造商:Freescale Semiconductor 功能描述:IC 8BIT MCU 68HC05 2.1MHZ DIP-28
MC705K1CP 制造商:Motorola Inc 功能描述:16 PIN DIP INTEGRATED CIRCUIT
MC705L16CFUE 功能描述:8位微控制器 -MCU 8B MCU W/ EPROM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
MC705P6ACDWE 功能描述:8位微控制器 -MCU MCU 176 BYTES RAM A/D RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
MC705P6ACDWE 制造商:Freescale Semiconductor 功能描述:8-Bit Microcontroller IC
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