Maker : Semtech Corporation
Part No. : XE8802

  Datasheet PDF : XE8802.pdf
  Cross Reference : XE8802 Cross Reference
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Shortcut : XE8801A  XE8802 

Product Information

www.DataSheet4U.net XE8802 Sensing Machine Data Acquisition MCU with ZoomingADC™ and LCD driver XE8802 Sensing Machine Data Acquisition SoC with 16+10 bit ZoomingADC™ Embedded RISC controller and LCD driver General Description The XE8802 includes a high resolution acquisition path with the 16+10 bits ZoomingADC™ and an LCD driver for up to 120 segments. The LCD lines can be used as additional I/Os. The embedded core of the XE8802 is an ultra low-power low-voltage microcontroller unit (MCU) with a strict 1 instruction per clock processing and branch speed, allowing for a sustained 4MIPS at 1200µA under 2.4 to 5.5 V. The XE8802 is available with on chip ROM or Multiple-Time-Programmable (MTP) program memory. Key product Features • Low-power, high resolution ZoomingADC • 16-bits sigma-delta type ADC • 0.5 to 1000 gain with offset cancellation • up to 13 inputs multiplexer, 8 dedicated inputs 4 low power comparators • • Low-voltage low-power controller operation • • • • 2 or 4 MIPS max, 2.4 to 5.5 V operation 300µA per 1MIPS over full voltage range 7MIPS or 1.2V operation in ROM Hardware MULT Applications • • • • • • • • • • • • • Portable, battery operated instruments Medical portable instrument Remote control HVAC control Metering Sports watches, wrist instruments up to 22kByte (8 kInstruction) MTP 1032Byte RAM data memory RC and crystal oscillators 5 reset, 22 interrupt, 8 event sources 36 I/O lines, hardware UART and SPI 120 segments LCD driver, can be used as 32 extra I/O lines 100 years MTP Flash retention at 55°C Ordering Information Product XE8802MI000 XE8802MI035LF Temperature range -40°C to 85 °C -40°C to 85 °C Memory type MTP MTP Package die LQFP100 Rev 1 January 2006 www.semtech.com www.DataSheet4U.net XE8802 Sensing Machine Data Acquisition MCU with ZoomingADC™ and LCD driver TABLE OF CONTENTS Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11 Chapter 12 Chapter 13 Chapter 14 Chapter 15 Chapter 16 Chapter 17 Chapter 18 Chapter 19 Chapter 20 Chapter 21 Chapter 22 Chapter 23 XE8802 Overview XE8802 Performance XE8802 CPU XE8802 Memory Low power modes Reset generator Clock generation Interrupt handler Event handler Low power RAM Port A Port B Port D Universal Asynchronous Receiver/Transmitter (UART) Universal Synchronous Receiver/Transmitter (USRT) Serial Peripheral Interface (SPI) Acquisition chain Voltage multiplier LCD driver Counters/PWM The Voltage Level Detector Low Power Comparators XE8802 Dimensions © Semtech 2006 www.semtech.com www.DataSheet4U.net XE8802 Sensing Machine Data Acquisition MCU with ZoomingADC™ and LCD driver 1. General overview 1.1 1.2 1.2.1 1.2.2 1.3 1.4 Top schematic Pin map LQFP-100 LQFP-80 Bare die Pin assignment 1-2 1-4 1-4 1-6 1-8 1-9 © Semtech 2006 www.semtech.com 1-1 www.DataSheet4U.net XE8802 Sensing Machine Data Acquisition MCU with ZoomingADC™ and LCD driver 1.1 Top schematic The top-level block schematic of the circuit is shown in Figure 1-1. The heart of the circuit consists of the Coolrisc816 CPU core. This core includes an 8x8 multiplier and 16 internal registers. The bus controller generates all control signals for access to all data registers other than the CPU internal registers. The reset block generates the adequate reset signals for the rest of the circuit as a function of the set-up contained in its control registers. Possible reset sources are the power-on-reset (POR), the external pin NRESET, the watchdog (WD), a bus error detected by the bus controller or a programmable pattern on Port A. Different low power modes are implemented. The clock generation and power management block sets up the clock signals and generates internal supplies for different blocks. The clock can be generated from the RC oscillator (this is the start-up condition), the crystal oscillator (XTAL) or an external clock source (given on the XIN pin)....

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