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參數(shù)資料
| 型號： | MC68HC11K1 |
| 廠商： | Motorola, Inc. |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-Bit Microcontroller(8位微控制器) |
| 中文描述： | 8位微控制器（8位微控制器） |
| 文件頁數(shù)： | 2/20頁 |
| 文件大?。?/td> | 286K |
| 代理商： | MC68HC11K1 |
MOTOROLA
2
AN1242/D
The MC68HC711K4 provides a great deal of flexibility for single-chip applications, but in some instances, it
may be necessary to find an alternate solution that provides equivalent functionality. These situations may
arise because:
Pins used by the on-chip peripherals are also used to implement digital I/O ports, so use of peripherals
can limit the available discrete digital I/O.
Addition of new features may increase object code size beyond the 24 Kbytes provided by the internal
EPROM. None of the M68HC11K devices provide more than 24 Kbytes of ROM or EPROM, and ex-
panded operating mode uses 25 digital I/O pins for the address/data bus and read/write line.
Reduced software maintenance costs due to source code development in a high-level language can
initially be offset by greater object code size, causing a memory crunch and loss of I/O resources.
Some applications require peripherals that are either not available on an M68HC11 derivative or not
available with an SCI- or SPI-compatible interface.These devices usually have an address/data bus,
and must be memory mapped, causing a loss of I/O resources.
Some of these problems may seem insurmountable without extensive hardware and/or software redesign,
but there is a solution that offers both the flexibility of expanded operating mode and the I/O preservation of
single-chip operating mode.
WSI PSD4XX and PSD5XX programmable system devices (PSDs) are peripherals with flexible bus inter-
faces that provide microcontroller system designers an integrated memory solution consisting of SRAM,
EPROM, and programmable logic. PSDs can also provide up to 40 digital I/O lines to replace those occu-
pied by the MCU address/data bus. PSD4XX and PSD5XX devices share the following features:
bus access speeds of 90, 120, 150, and 200 nanoseconds
37 (PSD4XXA1), 59 (PSD4XXA2), or 61 (PSD5XX) PLD inputs
113 (PSD4XXA1), 126 (PSD4XXA2), or 140 (PSD5XX) PLD product terms
8 (PSD4XXA1), 24 (PSD4XXA2), or 30 (PSD5XX) registered macrocells
40 bi-directional digital I/O pins
power management unit (PMU)
32K x 8 (PSDX11), 64K x 8 (PSDX12), or 128K x 8 (PSDX13) of EPROM
2K x 8 of SRAM
The PSD5XX family builds upon the PSD4XX family by adding a peripheral module that contains four 16-
bit counters/timers, a watchdog timer, and an eight level interrupt controller. On all PSDs, some of the pro-
grammable logic is used to map the different memory blocks and control registers for the I/O ports, the PMU,
and (on PSD5XX devices) peripheral control registers. Usually, sufficient programmable logic remains after
memory decoding to implement chip-select signals for external memory mapped peripherals, other bus con-
trol signals, and even state machines to perform useful peripheral functions.
The discussion which follows covers the process of converting a hypothetical single-chip M68HC11 appli-
cation to an equivalent or enhanced “two-chip solution” consisting of a non-multiplexed bus M68HC11 and
a PSD4XX or PSD5XX device. Please refer to the
DEVICE REFERENCE TABLES
for a list of compatible devices.
Table 4
shows suitable non-multiplexed bus M68HC11 devices.
shows PSD4XX and PSD5XX devices.
, at the end of this note,
Table 5
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC11K1CFN2 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:8-Bit Microcontroller |
| MC68HC11K1CFN3 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT |
| MC68HC11K1CFN4 | 功能描述:IC MCU 640 EEPROM 4MHZ 84-PLCC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC11 其它有關(guān)文件:STM32F101T8 View All Specifications 特色產(chǎn)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(shè)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(zhuǎn)換器:A/D 10x12b 振蕩器型:內(nèi)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 |
| MC68HC11K1CFNE3 | 功能描述:8位微控制器 -MCU 8B MCU 768 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 |
| MC68HC11K1CFNE4 | 功能描述:8位微控制器 -MCU 8B MCU 768 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 |
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