參數(shù)資料
型號(hào)： MCF5234CVM100
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 100 MHz, RISC PROCESSOR, PBGA256
封裝： MAPBGA-256
文件頁(yè)數(shù)： 28/76頁(yè)
文件大?。?/td> 2665K
代理商： MCF5234CVM100
34
MCF523x Integrated Microprocessor Hardware Specifications
MOTOROLA
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Interface Recommendations
4.7.1.2
Address Multiplexing
Table 21 shows the generic address multiplexing scheme for SDRAM configurations. All possible address
connection configurations can be derived from this table.
Table 20. Synchronous DRAM Signal Connections
Signal
Description
SD_RAS
Synchronous row address strobe. Indicates a valid SDRAM row address is present and can be
latched by the SDRAM. SD_RAS should be connected to the corresponding SDRAM SD_RAS.
Do not confuse SD_RAS with the DRAM controller’s SD_CS[1:0], which should not be
interfaced to the SDRAM SD_RAS signals.
SD_CAS
Synchronous column address strobe. Indicates a valid column address is present and can be
latched by the SDRAM. SD_CAS should be connected to the corresponding signal labeled
SD_CAS on the SDRAM.
DRAMW
DRAM read/write. Asserted for write operations and negated for read operations.
SD_CS[1:0]
Row address strobe. Select each memory block of SDRAMs connected to the MCF523x. One
SD_CS signal selects one SDRAM block and connects to the corresponding CS signals.
SD_CKE
Synchronous DRAM clock enable. Connected directly to the CKE (clock enable) signal of
SDRAMs. Enables and disables the clock internal to SDRAM. When CKE is low, memory can
enter a power-down mode where operations are suspended or they can enter self-refresh
mode. SD_CKE functionality is controlled by DCR[COC]. For designs using external
multiplexing, setting COC allows SD_CKE to provide command-bit functionality.
BS[3:0]
Column address strobe. For synchronous operation, BS[3:0] function as byte enables to the
SDRAMs. They connect to the DQM signals (or mask qualifiers) of the SDRAMs.
CLKOUT
Bus clock output. Connects to the CLK input of SDRAMs.
Table 21. Generic Address Multiplexing Scheme
Address Pin Row Address Column Address
Notes Related to Port Sizes
17
0
8-bit port only
16
1
8- and 16-bit ports only
15
2
14
3
13
4
12
5
11
6
10
7
9
8
17
16
32-bit port only
18
17
16-bit port only or 32-bit port with only 8
column address lines
19
18
16-bit port only when at least 9 column
address lines are used
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PDF描述
MCF5235CVM150 32-BIT, 150 MHz, RISC PROCESSOR, PBGA256
MCF5232CAB80 32-BIT, 80 MHz, RISC PROCESSOR, PQFP160
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCF5234CVM100J 功能描述:32位微控制器 - MCU V2CORE 64KSRAM RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:90 MHz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT
MCF5234CVM150 功能描述:IC MPU 32BIT COLDFIRE 256-MAPBGA RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MCF523x 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(cè)/復(fù)位，POR，PWM，WDT 輸入/輸出數(shù):32 程序存儲(chǔ)器容量:32KB（16K x 16） 程序存儲(chǔ)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
MCF5234CVM150 制造商:Freescale Semiconductor 功能描述:Microprocessor IC
MCF5234CVM150J 功能描述:32位微控制器 - MCU V2CORE 64KSRAM RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:90 MHz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT
MCF5235 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Microprocessor Hardware Specification
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