ADUC841BSZ62-5 Integrated Circuit Chip MicroConverter 12-Bit ADCs and DACs, High Speed 62-kB Flash MCU

 
MicroConverter® 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU
ADuC841/ADuC842/ADuC843
 
FEATURES
Pin compatable ugrade of ADuC812/ADuC831/ADuC832
    Increased performance
        Single-cycle 20 MIPS 8052 core
        High speed 420 kSPS 12-bit ADC
    Increased memory
        Up to 62 kBytes on-chip Flash/EE program memory
        4 kBytes on-chip Flash/EE data memory
    In-circuit reprogrammable
        Flash/EE, 100 year retention, 100 kCycle endurance
        2304 bytes on-chip data RAM
    Smaller package
        8 mm × 8 mm chip scale package
        52-lead PQFP—pin compatable upgrade
Analog I/O
    8-channel, 420 kSPS high accuracy, 12-bit ADC
    On-chip, 15 ppm/°C voltage reference
    DMA controller, high speed ADC-to-RAM capture
    Two 12-bit voltage output DACs¹
    Dual output PWM ∑-∆ DACs
    On-chip temperature monitor function
8052 based core
    8051 compatible instruction set (20 MHz max)
High performance single-cycle core
    32 kHz external crystal, on-chip programmable PLL
    12 interrupt sources, 2 priority levels
    Dual data pointers, extended 11-bit stack pointer
On-chip peripherals
    Time interval counter (TIC)
    UART, I²C®, and SPI® Serial I/O
    Watchdog timer (WDT)
    Power supply monitor (PSM)
Power
    Normal: 4.5 mA @ 3 V (core CLK = 2.098 MHz)
    Power-down: 10 µA @ 3 V²
Development tools
    Low cost, comprehensive development system incorporating nonintrusive single-pin emulation,
    IDE based assembly and C source debugging
 
APPLICATIONS
Optical networking—laser power control
Base station systems
Precision instrumentation, smart sensors
Transient capture systems
DAS and communications systems
 
1 ADuC841/ADuC842 only.
2 ADuC842/ADuC843 only, ADuC841 driven directly by external crystal.
 
GENERAL DESCRIPTION
The ADuC841/ADuC842/ADuC843 are complete smart transducer front ends, that integrates a high performance selfcalibrating multichannel ADC, a dual DAC, and an optimized single-cycle 20 MHz 8-bit MCU (8051 instruction set compatible) on a single chip.
The ADuC841 and ADuC842 are identical with the exception of the clock oscillator circuit; the ADuC841 is clocked directly from an external crystal up to 20 MHz whereas the ADuC842 uses a 32 kHz crystal with an on-chip PLL generating a programmable core clock up to 16.78 MHz.
The ADuC843 is identical to the ADuC842 except that the ADuC843 has no analog DAC outputs.
The microcontroller is an optimized 8052 core offering up to 20 MIPS peak performance. Three different memory options are available offering up to 62 kBytes of nonvolatile Flash/EE program memory. Four kBytes of nonvolatile Flash/EE data memory, 256 bytes RAM, and 2 kBytes of extended RAM are also integrated on-chip.
 
ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted

Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
 
FUNCTIONAL BLOCK DIAGRAM

 
OUTLINE DIMENSIONS

 
 
Stock Offer (Hot Sell)