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TMS320C6746 - TI
Manufacturer:
TI
ManyChip's Part#:
MC486601975
Datasheet:
Datasheet 3D Model
Description:
the device is a low-power applications processor based on a c674x dsp core. it provides significantly lower power tha...
Stock Locations:
Availability:
223 pcs In Stock
MOQ:
1 pcs
Unit Price:
$ 0

Updated at 04/05/2026 10:30:15(UTC+8)

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Description

The TMS320C6746 fixed- and floating-point DSP is a low-power applications processor based on a C674x DSP core. This DSP provides significantly lower power than other members of the TMS320C6000™ platform of DSPs.
The device enables original-equipment manufacturers (OEMs) and original-design manufacturers (ODMs) to quickly bring to market devices with robust operating systems, rich user interfaces, and high processor performance through the maximum flexibility of a fully integrated, mixed processor solution.
The device DSP core uses a 2-level cache-based architecture. The level 1 program cache (L1P) is a
32-KB direct mapped cache, and the level 1 data cache (L1D) is a 32-KB 2-way, set-associative cache. The level 2 program cache (L2P) consists of a 256-KB memory space that is shared between program and data space. L2 memory can be configured as mapped memory, cache, or combinations of the two. The DSP L2 is accessible by other hosts in the system.
The peripheral set includes: a 10/100 Mbps Ethernet media access controller (EMAC) with a management data input/output (MDIO) module; one USB2.0 OTG interface; two I2C Bus interfaces; one multichannel audio serial port (McASP) with 16 serializers and FIFO buffers; two multichannel buffered serial ports (McBSPs) with FIFO buffers; two serial peripheral interfaces (SPIs) with multiple chip selects; four 64-bit general-purpose timers each configurable (one configurable as a watchdog); a configurable 16-bit host-port interface (HPI); up to 9 banks of general-purpose input/output (GPIO) pins, with each bank containing 16 pins with programmable interrupt and event generation modes, multiplexed with other peripherals; three UART interfaces (each with RTS and CTS); two enhanced high-resolution pulse width modulator (eHRPWM) peripherals; three 32-bit enhanced capture (eCAP) module peripherals which can be configured as 3 capture inputs or 3 APWM outputs; two external memory interfaces: an asynchronous and SDRAM external memory interface (EMIFA) for slower memories or peripherals; and a higher speed DDR2/Mobile DDR controller.
The EMAC provides an efficient interface between the device and a network. The EMAC supports both 10Base-T and 100Base-TX, or 10 Mbps and 100 Mbps in either half- or full-duplex mode. Additionally, an MDIO interface is available for PHY configuration. The EMAC supports both MII and RMII interfaces.
The uPP provides a high-speed interface to many types of data converters, FPGAs, or other parallel devices. The uPP supports programmable data widths between 8- to 16-bits on both channels. Single-data rate and double-data rate transfers are supported as well as START, ENABLE, and WAIT signals to provide control for a variety of data converters.
A video port interface (VPIF) is included providing a flexible video I/O port.
The rich peripheral set provides the ability to control external peripheral devices and communicate with external processors. For details on each of the peripherals, see the related sections in this document and the associated peripheral reference guides.
The device has a complete set of development tools for the DSP. These tools include C compilers, a DSP assembly optimizer to simplify programming and scheduling, and a Windows debugger interface for visibility into source code execution.
375- and 456-MHz C674x Fixed- and Floating-Point VLIW DSP
C674x Instruction Set Features
Superset of the C67x+ and C64x+ ISAs
Up to 3648 MIPS and 2746 MFLOPS
Byte-Addressable (8-, 16-, 32-, and 64-Bit Data)
8-Bit Overflow Protection
Bit-Field Extract, Set, Clear
Normalization, Saturation, Bit-Counting
Compact 16-Bit Instructions
C674x Two-Level Cache Memory Architecture
32KB of L1P Program RAM/Cache
32KB of L1D Data RAM/Cache
256KB of L2 Unified Mapped RAM/Cache
Flexible RAM/Cache Partition (L1 and L2)
Enhanced Direct Memory Access Controller 3 (EDMA3):
2 Channel Controllers
3 Transfer Controllers
64 Independent DMA Channels
16 Quick DMA Channels
Programmable Transfer Burst Size
TMS320C674x Floating-Point VLIW DSP Core
Load-Store Architecture with Nonaligned Support
64 General-Purpose Registers (32-Bit)
Six ALU (32- and 40-Bit) Functional Units
Supports 32-Bit Integer, SP (IEEE Single Precision/32-Bit) and DP (IEEE Double Precision/64-Bit) Floating Point
Supports up to Four SP Additions Per Clock, Four DP Additions Every Two Clocks
Supports up to Two Floating-Point (SP or DP) Reciprocal Approximation (RCPxP) and Square-Root Reciprocal Approximation (RSQRxP) Operations Per Cycle
Two Multiply Functional Units:
Mixed-Precision IEEE Floating-Point Multiply Supported up to:
2 SP x SP → SP Per Clock
2 SP x SP → DP Every Two Clocks
2 SP x DP → DP Every Three Clocks
2 DP x DP → DP Every Four Clocks
Fixed-Point Multiply Supports Two 32 x 32-Bit Multiplies, Four 16 x 16-Bit Multiplies, or Eight 8 x 8-Bit Multiplies per Clock Cycle, and Complex Multiples
Instruction Packing Reduces Code Size
All Instructions Conditional
Hardware Support for Modulo Loop Operation
Protected Mode Operation
Exceptions Support for Error Detection and Program Redirection
Software Support
TI DSPBIOS
Chip Support Library and DSP Library
1.8-V or 3.3-V LVCMOS I/Os (Except for USB and DDR2 Interfaces)
Two External Memory Interfaces:
EMIFA
NOR (8- or 16-Bit-Wide Data)
NAND (8- or 16-Bit-Wide Data)
16-Bit SDRAM with 128-MB Address Space
DDR2/Mobile DDR Memory Controller with one of the following:
16-Bit DDR2 SDRAM with 256-MB Address Space
16-Bit mDDR SDRAM with 256-MB Address Space
Three Configurable 16550-Type UART Modules:
With Modem Control Signals
16-Byte FIFO
16x or 13x Oversampling Option
Two Serial Peripheral Interfaces (SPIs) Each with Multiple Chip Selects
Two Multimedia Card (MMC)/Secure Digital (SD) Card Interfaces with Secure Data I/O (SDIO) Interfaces
Two Master and Slave Inter-Integrated Circuits
(I2C Bus)
One Host-Port Interface (HPI) with 16-Bit-Wide Muxed Address and Data Bus For High Bandwidth
Programmable Real-Time Unit Subsystem (PRUSS)
Two Independent Programmable Real-Time Unit (PRU) Cores
32-Bit Load-Store RISC Architecture
4KB of Instruction RAM Per Core
512 Bytes of Data RAM Per Core
PRUSS can be Disabled via Software to Save Power
Register 30 of Each PRU is Exported From the Subsystem in Addition to the Normal R31 Output of the PRU Cores.
Standard Power-Management Mechanism
Clock Gating
Entire Subsystem Under a Single PSC Clock Gating Domain
Dedicated Interrupt Controller
Dedicated Switched Central Resource
USB 2.0 OTG Port with Integrated PHY (USB0)
USB 2.0 High- and Full-Speed Client
USB 2.0 High-, Full-, and Low-Speed Host
End Point 0 (Control)
End Points 1,2,3,4 (Control, Bulk, Interrupt, or ISOC) RX and TX
One Multichannel Audio Serial Port (McASP):
Two Clock Zones and 16 Serial Data Pins
Supports TDM, I2S, and Similar Formats
DIT-Capable
FIFO Buffers for Transmit and Receive
Two Multichannel Buffered Serial Ports (McBSPs):
Supports TDM, I2S, and Similar Formats
AC97 Audio Codec Interface
Telecom Interfaces (ST-Bus, H100)
128-Channel TDM
FIFO Buffers for Transmit and Receive
10/100 Mbps Ethernet MAC (EMAC):
IEEE 802.3 Compliant
MII Media-Independent Interface
RMII Reduced Media-Independent Interface
Management Data I/O (MDIO) Module
Video Port Interface (VPIF):
Two 8-Bit SD (BT.656), Single 16-Bit or Single Raw (8-, 10-, and 12-Bit) Video Capture Channels
Two 8-Bit SD (BT.656), Single 16-Bit Video Display Channels
Universal Parallel Port (uPP):
High-Speed Parallel Interface to FPGAs and Data Converters
Data Width on Both Channels is 8- to 16-Bit Inclusive
Single-Data Rate or Dual-Data Rate Transfers
Supports Multiple Interfaces with START, ENABLE, and WAIT Controls
Real-Time Clock (RTC) with 32-kHz Oscillator and Separate Power Rail
Three 64-Bit General-Purpose Timers (Each Configurable as Two 32-Bit Timers)
One 64-Bit General-Purpose or Watchdog Timer (Configurable as Two 32-Bit General-Purpose Timers)
Two Enhanced High-Resolution Pulse Width Modulators (eHRPWMs):
Dedicated 16-Bit Time-Base Counter with Period and Frequency Control
6 Single-Edge Outputs, 6 Dual-Edge Symmetric Outputs, or 3 Dual-Edge Asymmetric Outputs
Dead-Band Generation
PWM Chopping by High-Frequency Carrier
Trip Zone Input
Three 32-Bit Enhanced Capture (eCAP) Modules:
Configurable as 3 Capture Inputs or 3 Auxiliary Pulse Width Modulator (APWM) Outputs
Single-Shot Capture of up to Four Event Time-Stamps
Packages:
361-Ball Pb-Free Plastic Ball Grid Array (PBGA) [ZCE Suffix], 0.65-mm Ball Pitch
361-Ball Pb-Free PBGA [ZWT Suffix],
0.80-mm Ball Pitch
Commercial, Extended, or Industrial Temperature

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TMS320C6746 Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
	Show
Product Lifecycle Status
RoHS	RoHS Compliant
Lead-Free Status	Lead Free

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