- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45248 > MC68LC302CRC20 (MOTOROLA INC) 32-BIT, 20 MHz, RISC MICROCONTROLLER, CPGA132 PDF資料下載
參數(shù)資料
| 型號： | MC68LC302CRC20 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 20 MHz, RISC MICROCONTROLLER, CPGA132 |
| 封裝： | PGA-132 |
| 文件頁數(shù)： | 85/182頁 |
| 文件大?。?/td> | 618K |
| 代理商： | MC68LC302CRC20 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁當前第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁第148頁第149頁第150頁第151頁第152頁第153頁第154頁第155頁第156頁第157頁第158頁第159頁第160頁第161頁第162頁第163頁第164頁第165頁第166頁第167頁第168頁第169頁第170頁第171頁第172頁第173頁第174頁第175頁第176頁第177頁第178頁第179頁第180頁第181頁第182頁
MOTOROLA
MC68LC302 PRODUCT INFORMATION
3
MC68LC302 APPLICATIONS
The MC68LC302 excels in several applications areas.
First, any application using the MC68302,but not needing all three serial channels is a potential candidate for
the MC68LC302. Note however, that the MC68LC302 sacrifices most of the provision for external bus
mastership, thus the MC68LC302 may not be appropriate where the MC68302 is used as part of larger
systems.
Second, the MC68LC302 excels in low power and portable applications. The inclusion of a static 68000 core,
coupled with the low power modes built into the device make it ideal for handheld, or other low power
applications. The new 32 kHz or 4 MHz PLL option greatly reduces the total power budget of the designer’s
board, and allows the MC68LC302 to be an effective device in low power systems. The MC68LC302 can then
optionally generate a full frequency clock for use by the rest of the board. During low power modes, the new
periodic interrupt timer (PIT) allows the device to awaken at regular intervals. In addition, two pins can awaken
the device from low power modes.
Third, given that the MC68LC302 is packaged in a 100TQFP package, it allows the MC68LC302 to be used
in space critical applications, as well as height critical applications such as PCMCIA cards.
Fourth, since the disable CPU mode (also known as slave mode) is still retained, the MC68LC302 can function
as a fully intelligent DMA-driven peripheral chip containing serial channels, timers, chip selects, etc.
DIFFERENCES BETWEEN THE MC68LC302 AND MC68302
The MC68LC302 has some specific differences from the MC68302. Even though the functionality of the
processor and the peripherals remain the same, some of the flexibility has been removed due to the pin
reduction from 132 on the original MC68302, to 100 pins on the MC68LC302.
The following features have been removed or modified from the MC68302 in order to make the MC68LC302
possible.
SCC3 and its baud rate generator (BRG3) are removed.
External masters are not able to take the bus away from the MC68LC302 through the normal bus arbi-
tration scheme as these pins no longer exist. An external master can still maintain bus mastership
through a simple scheme using the HALT pin. This restriction does not apply when using the MC68LC302
in CPU disabled mode (slave mode), in which case BR, BG, and BGACK are all available.
Although the Independent DMA (IDMA) is still available, the external IDMA request pins (DREQ, DACK,
and DONE) have been eliminated. IDMA transfers can only originate under CPU control.
Four address lines have been eliminated, giving a total of 20 address lines. However, the MC68LC302
supports more than a 1 MB addressing range, since each of the four chip selects still decodes a 24-bit
address. This allows addressing a total of 4 MB.
Since the function code pins and AVEC have been removed, interrupt acknowledgment to external de-
vices is only provided on levels one, six, and seven.
The DDCMP protocol is no longer available for the SCCs.
The total list of pins removed is: A23-A20, FC2-FC0, AVEC, RMC, IAC, BERR, BR, BG, BGACK, BCLR,
IACK1, IACK6, IACK7, DREQ, DACK, DONE, BRG1, FRZ, TOUT1, NC1, NC3, TCLK3, RTS3, CTS3,
CD3, plus 5 power and ground pins.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68LC302PU16V | 32-BIT, 16.67 MHz, RISC MICROCONTROLLER, PQFP100 |
| MC68LC302RC25B | 32-BIT, 25 MHz, RISC MICROCONTROLLER, CPGA132 |
| MC68LC302CPU16B | 32-BIT, 16.67 MHz, RISC MICROCONTROLLER, PQFP100 |
| MC68LC302PU16VB | 32-BIT, 16.67 MHz, RISC MICROCONTROLLER, PQFP100 |
| MC68LC302CPU20VB | 32-BIT, 20 MHz, RISC MICROCONTROLLER, PQFP100 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68LC302PU16CT | 功能描述:IC MPU MULTI PROTOCOL 100-LQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:M683xx 標準包裝:2 系列:MPC8xx 處理器類型:32-位 MPC8xx PowerQUICC 特點:- 速度:133MHz 電壓:3.3V 安裝類型:表面貼裝 封裝/外殼:357-BBGA 供應商設備封裝:357-PBGA（25x25） 包裝:托盤 |
| MC68LC302PU16VCT | 功能描述:IC MPU NETWORK 16MHZ 100-LQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:M683xx 標準包裝:2 系列:MPC8xx 處理器類型:32-位 MPC8xx PowerQUICC 特點:- 速度:133MHz 電壓:3.3V 安裝類型:表面貼裝 封裝/外殼:357-BBGA 供應商設備封裝:357-PBGA（25x25） 包裝:托盤 |
| MC68LC302PU20CT | 功能描述:微處理器 - MPU 20MHz 2MIPS RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MC68LC302PU20VCT | 功能描述:IC MPU NETWORK 20MHZ 100-LQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:M683xx 標準包裝:2 系列:MPC8xx 處理器類型:32-位 MPC8xx PowerQUICC 特點:- 速度:133MHz 電壓:3.3V 安裝類型:表面貼裝 封裝/外殼:357-BBGA 供應商設備封裝:357-PBGA（25x25） 包裝:托盤 |
| MC68LC302PU25CT | 功能描述:微處理器 - MPU 25MHz 2.5MIPS RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
發(fā)布緊急采購，3分鐘左右您將得到回復。