MSC1202Y2RHHT datasheet(19/92 Pages) TI1

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MSC1200

MSC1201

MSC1202

SBAS317E − APRIL 2004 − REVISED MAY 2006

www.ti.com

DESCRIPTION

The MSC1200Yx, MSC1201Yx, and MSC1202Yx are

completely integrated families of mixed-signal devices

incorporating a high-resolution, delta-sigma ADC, 8-bit

cuurent output DAC, input multiplexer, burnout detect

current sources, selectable buffered input, offset DAC,

programmable gain amplifier (PGA), temperature sensor,

voltage reference, 8-bit 8051 microcontroller, Flash

Program Memory, Flash Data Memory, and Data SRAM,

as shown in Figure 3. The MSC1200, MSC1201, and

MSC1202 will be referred to as the MSC120x in this

document, unless otherwise noted.

On-chip

peripherals

include

additional

32-bit

summation register, basic SPI, basic I2C, USART, two

8-bit digital input/output ports, a watchdog timer,

low-voltage detect, on-chip power-on reset, brownout

reset, timer/counters, system clock divider, PLL, on-chip

oscillator, and external or internal interrupts.

The devices accept differential or single-ended signals

directly from a transducer. The ADC provides 24 bits

(MSC1200/01) or 16 bits (MSC1202) of resolution and 24

bits

(MSC1200/01)

bits

(MSC1202)

no-missing-code performance using a Sinc3 filter with a

programmable sample rate. The ADC also has a

selectable filter that allows for high-resolution, single-cycle

conversions.

The

microcontroller

core

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

design 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 MSC120x allow users to uniquely configure the Flash

Memory map to meet the needs of their applications. The

Flash is programmable down to +2.7V using serial

programming.

Flash

endurance

typically

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 MSC1200 is available in a

TQFP-48 package. The MSC1201 and MSC1202 are both

available in a QFN-36 package.

The

MSC120x

are

designed

for

high-resolution

measurement applications in smart transmitters, industrial

process control, weigh scales, chromatography, and

portable instrumentation.

MUX

BUF

PGA

REF

Modulator

4K or 8K

FLASH

256 Bytes

SRAM

128 Bytes

System FLASH

Digital

Filter

32−Bit ACC

8051

SFR

ALVD

DBOR

POR

System

Clock

Divider

PORT1

WDT

Alternate

Functions

Timers/

Counters

PLL

PORT3

DIN

DOUT

EXT (4)

PROG

USART0

EXT (2)

SCK/SCL/CLKS

On−Chip

Oscillator

8−Bit

Offset DAC

8−Bit IDAC

Burnout

Detect

AIN0

AIN1

AIN2

AIN3

AIN4

AIN5

AIN6(2)

AIN7(2)

AINCOM

IDAC

AGND

REFOUT/REFIN+

DGND

XIN XOUT

Temperature

Sensor

Burnout

Detect

RST

AGND

REF IN

−(1)

(1) REF IN

− must be tied to AGND when using internal V

REF.

(2) AIN6 and AIN7 available only on MSC1200.

NOTES:

Figure 3. Block Diagram

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