Texas Instruments TMS320C44GFW60

Overview

TMS320C44GFW60 from Texas Instruments is a 32-bit floating-point digital signal processor (DSP) fabricated in 0.72-µm EPIC CMOS, delivering 33-ns instruction cycle time, 330 MOPS, 60 MFLOPS, and 30 MIPS for real-time signal processing in radar, medical imaging, and industrial control systems.

For engineers reviewing the TMS320C44GFW60 datasheet, TMS320C44GFW60 pinout, TMS320C44GFW60 application, or TMS320C44GFW60 equivalent, key selection criteria include IEEE-754 floating-point compliance, dual external buses (global/local), six-channel DMA coprocessor, JTAG boundary-scan support, and 388-pin BGA package with thermal ground ring.

Technical Context

The TMS320C44GFW60 implements a parallel CPU architecture supporting eight operations per cycle: 40-bit floating-point multiply, 40-bit ALU operation, two data accesses, and two address-register updates. It features separate internal program, data, and DMA buses to sustain concurrent I/O throughput.

Its memory subsystem includes 512-byte instruction cache, dual-access 8-KB on-chip RAM, and 128-MB unified program/data/peripheral address space. The device supports IEEE-1149.1 JTAG boundary-scan and IDLE2 clock-stop power-down mode.

Key Specifications

Pinout & Package

388-pin plastic ball grid array (GFW suffix), commercial temperature grade, with thermal VSS ring (pins A1, A2, A26, B2, B25, B26, C3, C24, D4, D9, D14, D19, D23, H4, J23, L11–L16, M11–M16, N4, P23, V4, W23, AC4, AC8, AC13, AC18, AC23, AD3, AD24, AE1, AE2, AE25, AF1, AF25, AF26) and VDD power ring (D6, D11, D16, D21, F4, F23, L4, L23, T4, T23, AA4, AA23, AC6, AC11, AC16, AC21).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320C44GFW60, the TMS320C40GGM60 trades communication port count and cache for smaller footprint and lower cost, while the ADSP-21065L offers greater on-chip memory and raw MFLOPS but sacrifices JTAG debug capability and IEEE-754 standardization-making TMS320C44GFW60 optimal for standards-compliant, multi-processor embedded DSP systems.

Availability

TMS320C44GFW60 is available at Aetrix Electronics and suitable for radar signal processing, medical imaging reconstruction, industrial motor control, and telecom channel coding requiring stable component supply across long-lifecycle industrial programs.

Supply support for TMS320C44GFW60 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 global semiconductor leader specializing in analog, embedded processing, and connectivity technologies with over 50 years of innovation in signal processing and power management.

The TMS320C4x family was designed for high-performance, real-time floating-point computation in mission-critical embedded systems where deterministic latency, numerical precision, and multi-processor scalability are essential.

FAQ

What is the maximum operating frequency of the TMS320C44GFW60?

The TMS320C44GFW60 operates at a 33-ns instruction cycle time, corresponding to a 30.3 MHz CPU clock. Its performance metrics-30 MIPS, 330 MOPS, and 60 MFLOPS-are derived from this cycle time and its parallel execution architecture. The device does not use an internal PLL; clock input is applied directly to X2/CLKIN, and internal timing is synchronous to that source. TMS320C44GFW60 requires external clock generation at 30.3 MHz or crystal oscillation between X1 and X2.

Does the TMS320C44GFW60 support IEEE-1149.1 JTAG boundary-scan?

Yes, the TMS320C44GFW60 fully supports IEEE-1149.1 (JTAG) boundary-scan via dedicated pins TCK, TDO, TMS, TRST, and TDI. This enables in-system testing, emulation, and debug visibility without requiring additional probe points. The boundary-scan implementation covers all primary I/O pins including global/local bus signals, communication ports, and control lines. TMS320C44GFW60's JTAG compliance is documented in SPRS031C section 4 and verified in TI's production test flow.

How many communication ports does the TMS320C44GFW60 implement, and which ones are active?

The TMS320C44GFW60 implements four communication ports: C1, C2, C4, and C5. Ports C0 and C3 are not connected per the datasheet. Each active port provides an 8-bit bidirectional data bus (e.g., C1D7–C1D0), token-request/acknowledge, data-strobe, ready, and direction signals-enabling glueless processor-to-processor interconnect. TMS320C44GFW60 uses these ports for distributed real-time control and data fusion without external arbitration logic.

What memory resources are integrated into the TMS320C44GFW60?

The TMS320C44GFW60 integrates 512 bytes of instruction cache, 8 KB of single-cycle dual-access RAM (split into two 4-KB blocks), and supports boot loading from on-chip ROM when ROMEN = 1. It provides 128-MB unified address space across program, data, and peripheral regions. External memory interfaces include two independent 32-bit data/24-bit address buses (global and local), each supporting up to 120 MB/s transfer rate. TMS320C44GFW60 does not include embedded Flash or EEPROM.

Is the TMS320C44GFW60 pin-compatible with other C4x-family devices?

No, the TMS320C44GFW60 is not pin-compatible with other C4x devices due to its 388-ball BGA (GFW) package, whereas devices like TMS320C40GGM60 use 304-pin PQFP (PDB). Pin functions differ significantly-e.g., TMS320C44GFW60 assigns LA23–LA0 to local address pins across balls C11, C22, etc., while PDB packages route them to discrete pins 232–255. Layout migration requires full PCB redesign. TMS320C44GFW60 shares functional compatibility-not physical pinout-with the C4x family.