TMS320F28074是tms320f28系列DSP一系列的32位定點數(shù)字信号處理(lǐ)器(qì),具有(yǒu)數(shù)字的信号處理(lǐ)能力、事件管理(lǐ)和(hé)嵌入式控制(zhì)，它是最先進和(hé)最強大(dà)的DSP芯片，特别适用于監測和(hé)控制(zhì)條件下，有(yǒu)大(dà)量的數(shù)據需要處理(lǐ)，例如：工業自動化控制(zhì)，電(diàn)力電(diàn)子應用技(jì)術(shù)，智能儀表和(hé)電(diàn)機，電(diàn)機伺服控制(zhì)等。目前，許多(duō)伺服控制(zhì)儀器(qì)，UPS，變頻器(qì)采用TI公司的tms320f28074。
TMS320F28074特性：
TMS320C28x 32-Bit CPU
120 MHz
IEEE 754 Single-Precision Floating-Point
Trigonometric Math Unit (TMU)
Programmable Control Law Accelerator
[28075 Only]
120 MHz
IEEE 754 Single-Precision Floating-Point Executes Code Independently of Main CPU
On-Chip Memory
512KB of Flash (ECC-Protected)
100KB of RAM (ECC or Parity)
Dual-Zone Security Supporting Third-Party Development
Clock and System Control
Two Internal Zero-Pin 10-MHz Oscillators
On-Chip Crystal Oscillator and External Clock Input
Windowed Watchdog Timer Module
Missing Clock Detection Circuitry
1.2-V Core, 3.3-V I/O Design
System Peripherals
External Memory Interface (EMIF) With ASRAM and SDRAM Support
6-Channel Direct Memory Access (DMA) Controller
Up to 97 Individually Programmable, Multiplexed General-Purpose Input/Output (GPIO) Pins With Input Filtering
HW Interrupt Controller
Multiple Low-Power Mode Support With External Wakeup
JTAG Emulation Connection
Communications Peripherals
USB 2.0 + PHY Port
Two CAN-Bus Ports (Pin-Bootable)
Three High-Speed (40-MHz) SPI Ports
(Pin-Bootable)
Two Multichannel Buffered Serial Ports
Up to Four Serial Communications Interfaces (SCIs) (Pin-Bootable)
Two I2C Interfaces (Pin-Bootable)
Analog Subsystem
Up to Three Analog-to-Digital Converters
12-Bit Mode
3.1 MSPS Each (up to 9.3-MSPS System)
Single-Ended
Up to 17 External Channels
Single Sample-and-Hold (S/H) on Each ADC
HW Integrated Post-Processing of ADC Conversions
Saturating Offset Calibration
Error From Setpoint Calculation
High, Low, and Zero-Crossing Compare, With Interrupt Capability
Trigger-to-Sample Delay Capture
Eight Windowed Comparators With 12-Bit DAC References
Three 12-Bit Buffered DAC Outputs
Enhanced Control Peripherals
Up to 24 PWM Channels With Enhanced Features
Up to 16 High-Resolution Pulse Width Modulator (HRPWM) Channels
High Resolution on Both A and B Channels of 8 PWM Modules
Dead-Band Support (on Both Standard and High Resolution)
Six Enhanced Capture (eCAP) Modules
Up to Three Enhanced Quadrature Encoder Pulse (eQEP) Modules
Up to 8 Sigma-Delta Filter Module (SDFM) Input Channels, 2 Parallel Filters per Channel
Standard SDFM Data Filtering
Comparator Filter for Fast Action for Out of Range
Package Options:
176-Pin PowerPAD Thermally Enhanced Low-Profile Quad Flatpack (HLQFP)
[PTP Suffix]
100-Pin PowerPAD Thermally Enhanced Thin Quad Flatpack (HTQFP) [PZP Suffix]
Temperature Options:
T: –40oC to 105oC Junction
S: –40oC to 125oC Junction
Q: –40oC to 125oC Free-Air
(Q100 Qualification for Automotive Applications)
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