MSC1210 datasheet(20/83 Pages) TI

20 / 83 page

MSC1210

SBAS203F − MARCH 2002 − REVISED NOVEMBER 2004

www.ti.com

DESCRIPTION

The MSC1210Yx is a completely integrated family of

mixed-signal devices incorporating a high-resolution

delta-sigma ADC, 8-channel multiplexer, burnout current

sources,

selectable

buffered

input,

offset

DAC

(Digital-to-Analog

Converter),

Programmable

Gain

Amplifier (PGA), temperature sensor, voltage reference,

8-bit microcontroller, Flash Program Memory, Flash Data

Memory, and Data SRAM, as shown in Figure 8.

On-chip

peripherals

include

additional

32-bit

accumulator, an SPI-compatible serial port, dual USARTs,

multiple

digital input/output ports, watchdog timer,

low-voltage detect, on-chip power-on reset, 16-bit PWM,

and

system

timers,

brownout

reset,

and

three

timer/counters.

The device accepts low-level differential or single-ended

signals directly from a transducer. The ADC provides 24

bits of resolution and 24 bits of 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 conversion.

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. That

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 MSC1210Yx allows the user to uniquely configure the

Flash and SRAM memory maps to meet the needs of their

application. The Flash is programmable down to 2.7V

using both serial and parallel programming methods. The

Flash endurance is 1 million Erase/Write cycles. In

addition, 1280 bytes of RAM are incorporated on-chip.

The part has separate analog and digital supplies, which

can be independently powered from 2.7V to +5.5V. At +3V

operation, the power dissipation for the part is typically less

than 4mW. The MSC1210Yx is packaged in a TQFP-64

package.

The

MSC1210Yx

designed

for

high-resolution

measurement applications in smart transmitters, industrial

process control, weigh scales, chromatography, and

portable instrumentation.

ACC

MUX

AGND

+AV

BUFFER

PGA

REF

Modulator

Up to 32K

FLASH

1.2K

SRAM

SPI

Digital

Filter

8051

SFR

LVD

BOR

PORT1

PORT2

WDT

Timers/

Counters

Clock

Generator

PORT0

PORT3

SPI/EXT

USART2

ADDR

DATA

Alternate

Functions

USART1

EXT

8−Bit

PGA Offset

AIN0

AIN1

AIN2

AIN3

AIN4

AIN5

AIN6

AIN7

AINCOM

AGND

REF OUT

REF IN+

REF IN

−

DGND

XIN

XOUT

ALE

PSEN

RST

POR

Temperature

Sensor

REF

NOTE (1) REF IN

− must be tied to AGND when using internal V

REF.

(1)

Figure 8. Block Diagram

MSC1210 Datasheet(PDF) 20 Page - Texas Instruments

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