Features: ANALOG FEATURES
` MSC1201:
− 24 Bits No Missing Codes
− 22 Bits Effective Resolution At 10Hz
− Low Noise: 75nV
`PGA From 1 to 128
` Precision On-Chip Voltage Reference
` 6 Differential/Single-Ended Channels
` On-Chip Offset/Gain Calibration
` Offset Drift: 0.02ppm/°C
` Gain Drift: 0.5ppm/°C
` On-Chip Temperature Sensor
` Selectable Buffer Input
` Burnout Detect
` 8-Bit Current DAC
DIGITAL FEATURES
Microcontroller Core
` 8051-Compatible
` High-Speed Core:− 4 Clocks per Instruction Cycle
` DC to 33MHz
` On-Chip Oscillator
` PLL with 32kHz Capability
` Single Instruction 121ns
` Dual Data Pointer
Memory
` 4kB or 8kB of Flash Memory
` Flash Memory Partitioning
` Endurance 1M Erase/Write Cycles,100-Year Data Retention
` 256 Bytes Data SRAM
` In-System Serially Programmable
` Flash Memory Security
` 1kB Boot ROM
Peripheral Features
` 16 Digital I/O Pins
` Additional 32-Bit Accumulator
` Two 16-Bit Timer/Counters
` System Timers
` Programmable Watchdog Timer
` Full-Duplex USART
` Basic SPITM
` Basic I2CTM
` Power Management Control
` Internal Clock Divider
` Idle Mode Current < 200A
` Stop Mode Current < 100nA
` Digital Brownout Reset
` Analog Low-Voltage Detect
` 20 Interrupt Sources
GENERAL FEATURES
` Each Device Has Unique Serial Number
` Package: QFN-36
` Low Power: 3mW at 3.0V, 1MHz
` Industrial Temperature Range:−40°C to +125°C
` Power Supply: 2.7V to 5.25VApplication·Industrial Process Control
· Instrumentation
· Liquid/Gas Chromatography
· Blood Analysis
· Smart Transmitters
· Portable Instruments
· Weigh Scales
· Pressure Transducers
· Intelligent Sensors
· Portable Applications
· DAS SystemsPinout
Specifications
| |
MSC1201Yx, MSC1202Yx |
UNITS |
| Analog Inputs |
| Input current |
Momentary |
100 |
mA |
| Continuous |
10 |
mA |
| Input voltage |
AGND − 0.3 to AVDD + 0.3 |
V |
| Power Supply |
|
|
| DVDD to DGND |
−0.3 to +6 |
V |
| AVDD to AGND |
−0.3 to +6 |
V |
| AGND to DGND |
−0.3 to +0.3 |
V |
| VREF to AGND |
−0.3 to AVDD + 0.3 |
V |
| Digital input voltage to DGND |
−0.3 to DVDD + 0.3 |
V |
| Digital output voltage to DGND |
−0.3 to DVDD + 0.3 |
V |
| Maximum junction temperature |
+150 |
°C |
| Operating temperature range |
−40 to +125 |
°C |
| Storage temperature range |
−65 to +150 |
°C |
| Lead temperature (soldering, 10s) |
+235 |
°C |
| Package power dissipation |
(TJ Max − TAMBIENT)/JA |
W |
| Output current, all pins |
200 |
mA |
| Output pin short-circuit |
10 |
s |
| Thermal Resistance |
Junction to ambient (JA) |
High K (2s 2p) |
21.9 |
°C/W |
| Low K (1s) |
103.7 |
°C/W |
| Junction to case (JC) |
21.9 |
°C/W |
| Digital Outputs |
| Output current |
Continuous |
100 |
mA |
| I/O source/sink current |
100 |
mA |
| Power pin maximum |
300 |
mA |
(1) Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to absolute maximum conditions for extended periods may affect device reliability.DescriptionThe MSC1201Yx/MSC1202Yx are completely integrated families of mixed-signal devices incorporating a high-resolution, delta-sigma ADC, 8-bit IDAC, 8-channel
multiplexer, burnout detect current sources, selectable buffered input, offset DAC, programmable gain amplifier (PGA), temperature sensor, voltage reference, 8-bit microcontroller, Flash Program Memory, Flash Data Memory, and Data SRAM, as shown in Figure 3.
MSC1201 On-chip peripherals include an additional 32-bit accumulator, basic SPI, basic I2C, USART, multiple digital input/output ports, watchdog timer, low-voltage detect, on-chip power-on reset, brownout reset, timer/counters, system clock divider, PLL, on-chip oscillator, and external interrupts.
The devices MSC1201 accept low-level differential or single-ended signals directly from a transducer. The ADC provides 24 bits (MSC1201) or 16 bits (MSC1202) of re solution and 24 bits (MSC1201) or 16 bits (MSC1202) of no-missing-code performance using a Sinc3 filter with a programmablesample rate. The ADC also has a selectable filter that allows for high-resolution single-cycle conversion.
The MSC1201 microcontroller core is 8051 instruction set compatible. The microcontroller core is an optimized 8051 core that executes up to three times faster than the standard 8051 core, given the same clock source. This makes it possible to run the device at a lower external clock frequency and achieve the same performance at lower power than the standard 8051 core.
The MSC1201Yx/MSC1202Yx allow the user to uniquely configure the Flash Memory map to meet the needs of their application. The Flash is programmable down to +2.7V using serial programming. Flash endurance is typically 1M Erase/Write cycles.
The parts have separate analog and digital supplies, which can be independently powered from +2.7V to +5.25V. At +3V operation, the power dissipation for the part is typically less than 3mW. The MSC1201Yx/MSC1202Yx are both packaged in a QFN-36 package.
The MSC1201Yx/MSC1202Yx are designed for high-resolution measurement applications in smart transmitters, industrial process control, weigh scales, chromatography, and portable instrumentation.
MSC1201 Data Sheet
