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| 型号： | DS80C310-QCG+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/22页 |
| 文件大小： | 0K |
| 描述： | IC MCU HI SPEED 25MHZ 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： | 25MHz |
| 连通性： | EBI/EMI，SIO，UART/USART |
| 外围设备： | 欠压检测/复位，POR |
| 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 |
| 产品目录页面： | 703 (CN2011-ZH PDF) |
DS80C310
10 of 22
PERIPHERAL OVERVIEW
The DS80C310 provides the same peripheral functions as the standard 80C32. The device is compatible
with the DS80C320, but it does not offer all the peripherals.
TIMER RATE CONTROL
There is one important difference between the DS80C310 and 8051 regarding timers. The original 8051
used 12 clocks per cycle for timers and machine cycles. The DS80C310 architecture normally uses 4
clocks per machine cycle. However, in the area of timers and serial ports, the DS80C310 defaults to 12
clocks per cycle on reset. This allows existing code with real-time dependencies such as baud rates to
operate properly.
If an application needs higher speed timers or serial baud rates, the user can select individual timers to run
at the 4-clock rate. The Clock Control Register (CKCON; 8Eh) determines these timer speeds. When the
relevant CKCON bit is logic 1, the DS80C310 uses 4 clocks per cycle to generate timer speeds. When the
bit is 0, the DS80C310 uses 12 clocks for timer speeds. The reset condition is 0. CKCON.5 selects the
speed of Timer 2. CKCON.4 selects Timer 1 and CKCON.3 selects Timer 0. Note that unless a user
desires very fast timing, it is unnecessary to alter these bits. Also note that the timer controls are
independent.
POWER-ON RESET
The DS80C310 holds itself in reset during a power-up until 65,536 clock cycles have elapsed. The power-
on reset used by the DS80C310 differs somewhat from other members of the high-speed microcontroller
family. The crystal oscillator can start anywhere between 1.0V and 4.5V, but is not specified. This
eliminates the need for an RC reset circuit. For voltage-specific precision-brownout detection, an external
component is needed. When the device goes through a power-on reset, the POR flag is set in the
WDCON (D8h) register at bit 6.
INTERRUPTS
The DS80C310 provides 10 interrupt sources with two priority levels. Software can assign high or low
priority to all sources. All interrupts that are new to the 8051 have a lower natural priority than the
originals.
Table 3. Interrupt Sources and Priorities
NAME
DESCRIPTION
VECTOR
NATURAL
PRIORITY
INT0
External Interrupt 0
03h
1
TF0
Timer 0
0Bh
2
INT1
External Interrupt 1
13h
3
TF1
Timer 1
1Bh
4
SCON
T1 or R1 from the serial port
23h
5
TF2
Timer 2
2Bh
6
INT2
External Interrupt 2
43h
7
INT3
External Interrupt 3
4Bh
8
INT4
External Interrupt 4
53h
9
INT5
External Interrupt 5
5Bh
10
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS80C310-QCG/T&R | 制造商:Maxim Integrated Products 功能描述:MICRO HI SPD 310 44PLCC 25MHZ TRL - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC MCU HI SPEED 25MHZ 44-PLCC 制造商:Maxim Integrated Products 功能描述:8-bit Microcontrollers - MCU High-Speed |
| DS80C310-QCG/T&R | 功能描述:8位微控制器 -MCU High-Speed 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 |
| DS80C310-QCG+ | 功能描述:8位微控制器 -MCU High-Speed 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 |
| DS80C310-QCG+T&R | 制造商:Maxim Integrated Products 功能描述:MXMDS80C310-QCG+T&R HIGH SPEED MICRO-CON 制造商:Maxim Integrated Products 功能描述:MCU 8BIT CISC ROMLESS 5V 44PLCC - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC MCU HI SPEED 25MHZ 44-PLCC 制造商:Maxim Integrated Products 功能描述:8-bit Microcontrollers - MCU High-Speed |
| DS80C310-QCG+T&R | 功能描述:8位微控制器 -MCU High-Speed 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 |
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