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MAX7652CCB Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX7652CCB Datasheet(HTML) 1 Page - Maxim Integrated Products |
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1 / 36 page  General Description The MAX7651/MAX7652 are complete 12-bit data-acqui- sition systems featuring an algorithmic, switched-capaci- tor, analog-to-digital converter (ADC), a pulse- width-modulated digital-to-analog converter (DAC), three timer/counters, and an industry-standard 8051 micro- processor core with a variety of I/O peripherals. Power- down capability and full functionality with supply voltages as low as +3V make the MAX7651/MAX7652 suitable for portable and power-sensitive applications. The MAX7651/MAX7652 perform fully differential voltage measurements with 12-bit resolution, programmable gain, and separate track-and-hold for both positive and nega- tive inputs. The converter accepts versatile input modes consisting of four 2-channel signal pairs or eight 1-chan- nel signals relative to a floating common. The MAX7651/MAX7652 microprocessor systems feature a CPU, 256 bytes of RAM, two 8kB flash memory, four 8-bit I/O ports, two UARTs, an interrupt controller, and a watchdog timer. Only four clock cycles are required to complete each microprocessor instruction. The MAX7651/MAX7652 are available in 64-pin TQFP packages. Applications Hand-Held Instruments Portable Data-Acquisition Systems Temperature Controllers Smart Transmitters Data Loggers Multi-Channel Data-Acquisition with Data Formatting Features o 12-Bit 53ksps ADC with Fully Differential Inputs o Dual 8-Bit PWM DAC Outputs o Three Timers o 4-Clock Cycle 8051-Compatible Instruction Set with Dual Data Pointers o Programmable Watchdog Supervisor o Four Parallel I/O Ports o Dual Serial I/O Ports (up to 375kb) o +3V or +5V Single-Supply Operation o DC to 12MHz Clock Speed o 64-Pin TQFP Package Flash Programmable 12-Bit Integrated Data-Acquisition Systems ________________________________________________________________ Maxim Integrated Products 1 256 BYTES RAM WATCHDOG TIMER SERIAL PORT 0 TXD RXD 8k BYTE FLASH 2000H– 3FCOH SERIAL PORT 1 TXD RXD INT0 EXT MEM TIMER 0 TIMER 1 TIMER 2 T0 T1 T2 T2_OUT T2_OUT PWMA OUTPUT PWMB OUTPUT INT1 AIN0 AIN7 ANALOG INPUTS REF+ REF- FOUR 8-BIT I/O PORTS 8k BYTE FLASH 0000H– 1FFFH PULSE- WIDTH MODULATOR MEMORY ADDRESS AND DATA BUSES SFR BUS 12-BIT A/D CONVERTER INTERRUPT CONTROLLER 8051 CPU UPPER LOWER MAX7651 MAX7652 ACOM Functional Diagram 19-2119; Rev 0; 8/01 Ordering Information PART TEMP. RANGE PIN-PACKAGE MAX7651CCB 0 °C to +70°C 64 TQFP MAX7651ECB -40 °C to +85°C 64 TQFP MAX7652CCB 0 °C to +70°C 64 TQFP MAX7652ECB -40 °C to +85°C 64 TQFP Pin configuration appears at end of data sheet. For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. |
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