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| 型号： | MSC1201Y2RHHRG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 33 MHz, MICROCONTROLLER, PQCC36 |
| 封装： | GREEN, PLASTIC, QFN-36 |
| 文件页数： | 13/93页 |
| 文件大小： | 1093K |
| 代理商： | MSC1201Y2RHHRG4 |
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MSC1200
MSC1201
MSC1202
SBAS317E APRIL 2004 REVISED MAY 2006
www.ti.com
20
ENHANCED 8051 CORE
All instructions in the MSC120x families perform exactly
the same functions as they would in a standard 8051. The
effects on bits, flags, and registers are the same; however,
the timing is different. The MSC120x families use an
efficient 8051 core that results in an improved instruction
execution speed of between 1.5 and 3 times faster than the
original core for the same external clock speed (4 clock
cycles per instruction versus 12 clock cycles per
instruction, as shown in Figure 4). This efficiency
translates into an effective throughput improvement of
more than 2.5 times, using the same code and same
external clock speed. Therefore, a device frequency of
33MHz for the MSC120x actually performs at an
equivalent execution speed of 82.5MHz compared to the
standard 8051 core. This increased performance allows
the device to be tun at slower clock speeds, which reduces
system noise and power consumption, but provides
greater throughput. This performance difference can be
seen in Figure 5. The timing of software loops will be faster
with the MSC120x. However, the timer/counter operation
of the MSC120x may be maintained at 12 clocks per
increment or optionally run at 4 clocks per increment.
The MSC120x also provide dual data pointers (DPTRs).
Internal
ALE
Internal
PSEN
Internal
AD0AD7
Internal
A8A15
ALE
PSEN
AD0AD7
PORT 2
CLK
S
ta
n
da
rd
805
1
T
im
in
g
M
S
C
1
20x
Ti
mi
n
g
SingleByte, SingleCycle
Instruction
SingleByte, SingleCycle
Instruction
12 Cycles
4Cycles
Figure 5. Comparison of MSC120x Timing to
Standard 8051 Timing
Figure 4. Instruction Timing Cycle
f
CLK
instr_cycle
cpu_cycle
C1
C2
C3
C4
C1
C2
C3
C4
C1
n+ 1
n + 2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MSC1201Y2RHHT | 功能描述:模数转换器 - ADC Precision ADC & DAC w/8051 CPU & Flash RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MSC1201Y2RHHTG4 | 功能描述:模数转换器 - ADC Precision ADC & DAC w/8051 CPU & Flash RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MSC1201Y3 | 制造商:BB 制造商全称:BB 功能描述:Precision, Analog-to-Digital Converter (ADC) and Digital-to-Analog Converter (DAC) with 8051 Microcontroller and Flash Memory |
| MSC1201Y3RHHR | 功能描述:模数转换器 - ADC Precision ADC & DAC w/8051 CPU & Flash RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MSC1201Y3RHHRG4 | 功能描述:模数转换器 - ADC Precision ADC & DAC w/8051 CPU & Flash RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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