Texas Instruments TMS320C44GFW50

Overview

TMS320C44GFW50 from Texas Instruments is a 32-bit floating-point digital signal processor (DSP) fabricated in 0.72-µm EPIC CMOS, featuring 40-ns instruction cycle time, 30 MIPS, 250 MOPS, IEEE-754 single-cycle floating-point conversion, and dual 32-bit external buses supporting 120 MB/s per bus. It targets real-time radar signal processing, industrial motor control, and high-fidelity audio algorithms.

For engineers reviewing the TMS320C44GFW50 datasheet, TMS320C44GFW50 pinout, TMS320C44GFW50 application, or TMS320C44GFW50 equivalent, key selection criteria include its 388-pin BGA (GFW) package, six-channel DMA coprocessor, four communication ports (ports 1, 2, 4, 5), on-chip 8 KB dual-access RAM, and IEEE-1149.1 JTAG boundary-scan support for production testability.

Technical Context

The TMS320C44GFW50 implements a parallel CPU architecture enabling eight operations per cycle: 40-bit floating-point multiply, ALU operation, two data accesses, and two address-register updates. Its memory subsystem includes separate program (PDATA), data (DDATA), and DMA (DMADATA) buses with 512-byte instruction cache and two 4-KB RAM blocks.

It integrates a six-channel smart DMA coprocessor with independent FIFOs per channel, four dedicated communication ports (C1–C2, C4–C5) using token-passing protocol, and dual external bus interfaces (global/local) each with 24-bit addressing, strobe/ready handshaking, and four sets of memory-control signals for mixed-speed memory interfacing.

Key Specifications

Pinout & Package

388-pin plastic ball grid array (GFW suffix), commercial temperature grade (0°C to 70°C), 27 mm × 27 mm body, 1.27 mm pitch, thermal VSS ring (L11–L16, M11–M16, etc.) and VDD ring (D6, D11, F4, etc.) for power integrity.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital signal processor applications.

Compared with TMS320C44GFW60, the TMS320C44GFW50 trades 25% peak performance for lower power and thermal margin; compared with TMS320C33PGEA100, it delivers integrated inter-processor communication and dual-bus concurrency at the cost of larger footprint and higher complexity.

Availability

TMS320C44GFW50 is available at Aetrix Electronics and suitable for radar signal processing, industrial motor control, and high-fidelity audio processing requiring stable component supply across extended product lifecycles.

Supply support for TMS320C44GFW50 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a U.S.-based semiconductor company founded in 1930, specializing in analog, embedded processing, and digital signal processing technologies.

The TMS320C4x family was designed for high-throughput, low-latency real-time signal processing in mission-critical embedded systems where deterministic timing and computational density are essential.

FAQ

What is the operating temperature range for the TMS320C44GFW50?

The TMS320C44GFW50 is specified for commercial temperature operation from 0°C to +70°C. It uses the GFW suffix, which denotes the 388-pin plastic BGA package rated for this range. Industrial-grade variants (e.g., TMS320C44GFW50I) exist but are distinct orderable parts with different suffixes and qualification testing.

Does the TMS320C44GFW50 support IEEE-754 single-precision floating-point arithmetic natively?

Yes, the TMS320C44GFW50 executes IEEE-754 single-precision floating-point operations-including addition, multiplication, division, square root, and format conversion-in hardware with single-cycle latency. Its 40-bit extended-precision accumulator ensures intermediate precision beyond IEEE-754, reducing round-off error in long filter chains.

How many communication ports does the TMS320C44GFW50 implement, and which ones are active?

The TMS320C44GFW50 implements four active communication ports: C1, C2, C4, and C5. Ports 0 and 3 are physically unconnected per the silicon design. Each active port provides an 8-bit bidirectional data bus with dedicated CREQ/CACK/CSTRB/CRDY/CDIR signals for token-based peer-to-peer synchronization without external arbitration.

What memory resources are integrated on-chip in the TMS320C44GFW50?

The TMS320C44GFW50 integrates 512 bytes of instruction cache, two 4-KB blocks of single-cycle dual-access RAM (total 8 KB), and reserved ROM space for boot loader. When ROMEN = 1, the internal boot ROM is enabled; when ROMEN = 0, that space maps to external memory. No on-chip flash or EEPROM is present.

Is the TMS320C44GFW50 pin-compatible with other members of the TMS320C4x family?

The TMS320C44GFW50 shares identical pinout and signal mapping with other GFW-suffix C44 devices (e.g., TMS320C44GFW60) and is functionally compatible with the broader C4x family. However, it is not pin-compatible with PDB-suffix (304-pin PQFP) variants due to differing package geometry, ball/pad count, and I/O allocation.