- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄1949 > MC68EC030FE25CB1 (Freescale Semiconductor)IC MPU 32BIT ENH 25MHZ 132-CQFP PDF資料下載
參數(shù)資料
| 型號： | MC68EC030FE25CB1 |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 12/36頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MPU 32BIT ENH 25MHZ 132-CQFP |
| 標準包裝： | 180 |
| 系列： | M680x0 |
| 處理器類型： | M680x0 32-位 |
| 速度： | 25MHz |
| 電壓： | 5V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 132-BCQFP |
| 供應(yīng)商設(shè)備封裝： | 132-CQFP（24x24） |
| 包裝： | 托盤 |
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頁當前第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
2
MC68EC030 TECHNICAL DATA
MOTOROLA
INTRODUCTION
The MC68EC030 is an integrated controller that incorporates the capabilities of the MC68030 integer
unit, a data cache, an instruction cache, an access control unit (ACU), and an improved bus controller on
one VLSI device. It maintains the 32-bit registers available with the entire M68000 Family as well as the
32-bit address and data paths, rich instruction set, versatile addressing modes, and flexible coprocessor
interface provided with the MC68020 and MC68030. In addition, the internal operations of this integrated
controller are designed to operate in parallel, allowing instruction execution to proceed in parallel with
accesses to the internal caches and the bus controller.
The MC68EC030 fully supports the nonmultiplexed asynchronous bus of the MC68020 and MC68030
as well as the dynamic bus sizing mechanism that allows the controller to transfer operands to or from
external devices while automatically determining device port size on a cycle-by-cycle basis. In addition to
the asynchronous bus, the MC68EC030 also supports the fast synchronous bus of the MC68030 for off-
chip caches and fast memories. Like the MC68030, the MC68EC030 bus is capable of fetching up to four
long words of data in a burst mode compatible with DRAM chips that have burst capability. Burst mode can
reduce (up to 50 percent) the time necessary to fetch the four long words. The four long words are used
to prefill the on-chip instruction and data caches so that the hit ratio of the caches is improved and the
average access time for operand fetches is minimized.
The MC68EC030 is specifically designed to sustain high performance while using low-cost (DRAM)
memory subsystems.
Coupled with the MC88916 clock generation and distribution circuit, the
MC68EC030 provides simple interface to lower speed memory subsystems. The MC88916 (see Figure
1) provides the precise clock signals required to efficiently control memory subsystems, eliminating
system design constraints due to clock generation and distribution.
MC68EC030
(40 MHz)
MC88916
20 MHz
OSC.
CONTROLLER
CLOCK (40 MHz)
BUS CLOCK
(40 MHz)
BUS CLOCK
(80 MHz)
3
BUS CLOCK
(20 MHz)
Figure 1.
MC68EC030 Clock Circuitry
The block diagram shown in Figure 2 depicts the major sections of the MC68EC030 and illustrates the
autonomous nature of these blocks. The bus controller consists of the address and data pads, the
multiplexers required to support dynamic bus sizing, and a microbus controller that schedules the bus
cycles on the basis of priority. The micromachine contains the execution unit and all related control logic.
Microcode control is provided by a modified two-level store of microROM and nanoROM contained in the
micromachine. Programmed logic arrays (PLAs) are used to provide instruction decode and sequencing
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68F375MZP33R2 | IC MPU 32BIT 33MHZ 217-PBGA |
| MC68HC001CEI8 | IC MPU 32BIT 8MHZ 68-PLCC |
| MC68HC11K1VFNE4 | MCU 8-BIT 768 RAM 4MHZ 84-PLCC |
| MC68HC16Z1CPV25 | IC MPU 1K RAM 25MHZ 144-LQFP |
| MC68HC16Z1VEH16 | IC MCU 16BIT 1K FLASH 132-PQFP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68EC030FE40B | 制造商:Motorola Inc 功能描述: |
| MC68EC030FE40C | 功能描述:微處理器 - MPU 32B ON-CHIP CACHE 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 |
| MC68EC030FE40C | 制造商:Freescale Semiconductor 功能描述:Microprocessor |
| MC68EC030RP25B | 制造商:Motorola Inc 功能描述:68EC030RP25B |
| MC68EC040 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:M68000-compatible, high-performance, 32-bit microprocessors |
發(fā)布緊急采購，3分鐘左右您將得到回復。