参数资料
型号: DS80C323-QCD
厂商: Maxim Integrated Products
文件页数: 3/38页
文件大小: 0K
描述: IC MCU HI SPEED 18MHZ 44-PLCC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 26
系列: 80C
核心处理器: 8051
芯体尺寸: 8-位
速度: 18MHz
连通性: EBI/EMI,SIO,UART/USART
外围设备: 电源故障复位,WDT
输入/输出数: 32
程序存储器类型: ROMless
RAM 容量: 256 x 8
电压 - 电源 (Vcc/Vdd): 4.5 V ~ 5.5 V
振荡器型: 外部
工作温度: 0°C ~ 70°C
封装/外壳: 44-LCC(J 形引线)
包装: 管件
DS80C320/DS80C323 High-Speed/Low-Power Microcontrollers
11 of 38
Table 1 shows the speed for each class of instruction. Note that many of the instructions have multiple op
codes. There are 255 op codes for 111 instructions. Of the 255 op codes, 159 are three times faster than
the original 80C32. While a system that emphasizes those instructions will see the most improvement, the
large total number that receive a 3 to 1 improvement assure a dramatic speed increase for any system. The
speed improvement summary is provided below.
SPEED ADVANTAGE SUMMARY
#OP CODES
SPEED
IMPROVEMENT
159
3.0 x
51
1.5 x
43
2.0 x
2
2.4 x
255
Average: 2.5
MEMORY ACCESS
The DS80C320/DS80C323 do not contain on-chip ROM and 256 bytes of scratchpad RAM. Off-chip
memory is accessed using the multiplexed address/data bus on P0 and the MSB address on P2. Figure 3
shows a typical memory connection. Timing diagrams are provided in the Electrical Specifications
section. Program memory (ROM) is accessed at a fixed rate determined by the crystal frequency and the
actual instructions. As previously mentioned, an instruction cycle requires 4 clocks. Data memory (RAM)
is accessed according to a variable-speed MOVX instruction as described below.
Figure 3. Typical Memory Connection
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DS80C323-QCD/T&R 制造商:Maxim Integrated Products 功能描述:MICRO HI SPD 3V 44PLCC T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC MCU HI SPEED 18MHZ 44-PLCC 制造商:Maxim Integrated Products 功能描述:8-bit Microcontrollers - MCU High-Speed Low-Power
DS80C323-QCD/T&R 功能描述:8位微控制器 -MCU High-Speed Low-Power RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
DS80C323-QCD+ 功能描述:8位微控制器 -MCU High-Speed Low-Power RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
DS80C323-QCD+T&R 制造商:Maxim Integrated Products 功能描述:MCU 8BIT CISC ROMLESS 3V 44PLCC - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC MCU HI SPEED 18MHZ 44-PLCC 制造商:Maxim Integrated Products 功能描述:8-bit Microcontrollers - MCU High-Speed Low-Power
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