參數(shù)資料
型號: MC705P6ACDWE
廠商: Freescale Semiconductor
文件頁數(shù): 53/98頁
文件大?。?/td> 0K
描述: IC MCU 176 BYTES RAM 28-SOIC
標(biāo)準(zhǔn)包裝: 26
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,WDT
輸入/輸出數(shù): 21
程序存儲器容量: 4.5KB(4.5K x 8)
程序存儲器類型: OTP
RAM 容量: 176 x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 4x8b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 28-SOIC(0.295",7.50mm 寬)
包裝: 管件
MC68HC705P6A Advance Information Data Sheet, Rev. 2.1
Freescale Semiconductor
57
Chapter 10
EPROM
10.1 Introduction
The user EPROM consists of 48 bytes of user page zero EPROM from $0020 to $004F, 4608 bytes of
user EPROM from $0100 to $12FF, the two MOR reset values located at $1EFF and $1F00, and 16 bytes
of user vectors EPROM from $1FF0 to $1FFF. The bootloader ROM and vectors are located from $1F01
to $1FEF.
10.2 EPROM Erasing
NOTE
Only parts packaged in a windowed package may be erased. Others are
one-time programmable and may not be erased by UV exposure.
The MC68HC705P6A can be erased by exposure to a high-intensity ultraviolet (UV) light with a
wavelength of 2537 angstroms. The recommended dose (UV intensity multiplied by exposure time) is
15 Ws/cm2. UV lamps without shortwave filters should be used, and the EPROM device should be
positioned about one inch from the UV lamp. An erased EPROM byte will read as $00.
10.3 EPROM Programming Sequence
The bootloader software goes through a complete write cycle of the EPROM including the MOR. This is
followed by a verify cycle which continually branches in a loop if an error is found. A sample routine to
program a byte of EPROM is shown in Table 10-1.
NOTE
To avoid damage to the MCU, VDD must be applied to the MCU before VPP.
10.4 EPROM Registers
Three registers are associated with the EPROM: the EPROM programming register (EPROG) and the
two mask option registers (MOR). The EPROG register controls the actual programming of the EPROM
bytes and the MOR. The MOR registers control the six mask options found on the ROM version of this
MCU (MC68HC05P6), the EPROM security feature, and eight additional port A interrupt options.
10.5 EPROM Programming Register (EPROG)
This register is used to program the EPROM array. Only the ELAT and EPGM bits are available.
Table 10-1 shows the location of each bit in the EPROG register and the state of these bits coming out of
reset. All the bits in the EPROG register are cleared by reset.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC705P6ACDWE 制造商:Freescale Semiconductor 功能描述:8-Bit Microcontroller IC
MC705P6ACDWER 功能描述:IC MCU 8BIT EPROM 28-SOIC RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:HC05 標(biāo)準(zhǔn)包裝:1 系列:AVR® ATmega 核心處理器:AVR 芯體尺寸:8-位 速度:16MHz 連通性:I²C,SPI,UART/USART 外圍設(shè)備:欠壓檢測/復(fù)位,POR,PWM,WDT 輸入/輸出數(shù):32 程序存儲器容量:32KB(16K x 16) 程序存儲器類型:閃存 EEPROM 大小:1K x 8 RAM 容量:2K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:44-TQFP 包裝:剪切帶 (CT) 其它名稱:ATMEGA324P-B15AZCT
MC705P6ACPE 功能描述:8位微控制器 -MCU HC705P6A 176 BYTES RAM 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 最大時鐘頻率:50 MHz 程序存儲器大小: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
MC705P6AMDWE 功能描述:8位微控制器 -MCU MCU 176 BYTES RAM EPP 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 最大時鐘頻率:50 MHz 程序存儲器大小: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
MC705P6AMPE 功能描述:8位微控制器 -MCU 705P6A 176 BYTES RAM EPP 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 最大時鐘頻率:50 MHz 程序存儲器大小: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