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參數(shù)資料
| 型號： | MC68HC705C9ACFB |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQFP44 |
| 封裝： | QFP-44 |
| 文件頁數(shù)： | 37/118頁 |
| 文件大小： | 750K |
| 代理商： | MC68HC705C9ACFB |
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MC68HC05C9A Advance Information Data Sheet, Rev. 4.1
Freescale Semiconductor
25
Chapter 2
Memory
2.1 Introduction
The MCU has a 16-Kbyte memory map when configured as either an MC68HC05C9A or an
MC68HC05C12A. The memory map consists of registers (I/O, control, and status), user RAM, user
EPROM, bootloader ROM, and reset and interrupt vectors as shown in Figure 2-1 and Figure 2-2.
When configured as an MC68HC05C9A, two control bits in the option register ($3FDF) allow the user to
switch between RAM and EPROM at any time in two special areas of the memory map, $0020-$004F (48
bytes) and $0100-$017F (128 bytes). When configured as an MC68HC05C12A, the section of the
memory map from $0020 to $004F is fixed as EPROM and the section from $0100 to $0FFF becomes
unused.
2.2 RAM
The main user RAM consists of 176 bytes at $0050–$00FF. This RAM area is always present in the
memory map and includes a 64-byte stack area. The stack pointer can access 64 bytes of RAM in the
range $00FF down to $00C0.
NOTE
Using the stack area for data storage or temporary work locations requires
care to prevent it from being overwritten due to stacking from an interrupt
or subroutine call.
In MC68HC05C9A configuration, two additional RAM areas are available at $0020–$004F (48 bytes) and
$0100–$017F (128 bytes) (see Figure 2-1 and Figure 2-2.) These may be accessed at any time by setting
the RAM0 and RAM1 bits, respectively, in the C9A option register. Refer to 1.5 Software-Programmable
Options (MC68HC05C9A Mode Only) for additional information.
2.3 EPROM
When configured as a C12A the main user EPROM consists of 48 bytes of page zero EPROM from $0020
to $004F, 12,032 bytes of EPROM from $1000 to $3EFF, and 14 bytes of user vectors from $3FF4 to
$3FFF. When configured as a C9A, an additional 3,840 bytes of user EPROM from $0100 to $0FFF are
enabled.
Locations $3FF0 and $3FF1 are the mask option registers (MOR) (see 1.4 Mask Options).
For detailed information on programming the EPROM see Appendix A EPROM Programming.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC705C9ACFBE | 功能描述:8位微控制器 -MCU 8B MCU 352 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 安裝風格:SMD/SMT |
| MC68HC705C9ACFN | 功能描述:IC MCU 2.1MHZ 16K OTP 44-PLCC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 其它有關文件:STM32F101T8 View All Specifications 特色產品:STM32 32-bit Cortex MCUs 標準包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C，IrDA，LIN，SPI，UART/USART 外圍設備:DMA，PDR，POR，PVD，PWM，溫度傳感器，WDT 輸入/輸出數(shù):26 程序存儲器容量:64KB（64K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數(shù)據(jù)轉換器:A/D 10x12b 振蕩器型:內部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN，36-VFQFPN 包裝:托盤 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名稱:497-9032STM32F101T8U6-ND |
| MC68HC705C9ACFNE | 功能描述:8位微控制器 -MCU 8B MCU 352 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 安裝風格:SMD/SMT |
| MC68HC705C9ACP | 功能描述:IC MCU 2.1MHZ 16K OTP 40-DIP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 其它有關文件:STM32F101T8 View All Specifications 特色產品:STM32 32-bit Cortex MCUs 標準包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C，IrDA，LIN，SPI，UART/USART 外圍設備:DMA，PDR，POR，PVD，PWM，溫度傳感器，WDT 輸入/輸出數(shù):26 程序存儲器容量:64KB（64K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數(shù)據(jù)轉換器:A/D 10x12b 振蕩器型:內部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN，36-VFQFPN 包裝:托盤 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名稱:497-9032STM32F101T8U6-ND |
| MC68HC705C9ACPE | 制造商:Freescale Semiconductor 功能描述: |
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