MSC1210 Datasheet, PDF (20/83 Pages) OKI electronic componets – Clock For 1/2 Duty VFD

MSC1210
SBAS203F − MARCH 2002 − REVISED NOVEMBER 2004
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 an 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.
www.ti.com
The 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. 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 is designed for high-resolution
measurement applications in smart transmitters, industrial
process control, weigh scales, chromatography, and
portable instrumentation.
AV_DD AGND
+AV_DD
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
AINCOM
Temperature
Sensor
MUX
BUFFER
AGND
REF OUT
(1)
REF IN+ REF IN−
DV_DD DGND
V_{R EF}
8−Bit
PGA Offset
PGA
Clock
Generator
Modulator
Up to 32K
FLASH
1.2K
SRAM
SPI
LVD
BOR
REF
Digital
Filter
ACC
8051
SFR
POR
Timers/
Counters
WDT
PORT0
PORT1
PORT2
PORT3
EA
ALE
PSEN
Alternate
Functions
8
ADDR
DATA
T2
8 SPI/EXT
USART2
8 ADDR
USART1
EXT
8 T0
T1
RW
RST
XIN XOUT
NOTE (1) REF IN− must be tied to AGND when using internal V_REF.
Figure 8. Block Diagram
20