Product details

DSP (max) (MHz) 66 Rating Military Operating temperature range (°C) -55 to 125
DSP (max) (MHz) 66 Rating Military Operating temperature range (°C) -55 to 125
CFP (HFG) 132 585.1561 mm² 24.19 x 24.19 CFP (HFG) 132 582.2569 mm² 24.13 x 24.13 CPGA (GFA) 141 725.2249 mm² 26.93 x 26.93
  • Military Operating Temperature Range:
      55°C to 125°C
  • Processed to MIL-PRF-38535
  • Fast Instruction Cycle Time (30 ns and 40 ns)
  • Source-Code Compatible With All C1x and C2x Devices
  • RAM-Based Operation
    • 9K × 16-Bit Single-Cycle On-Chip Program/Data RAM
    • 1056 × 16-Bit Dual-Access On-Chip Data RAM
  • 2K × 16-Bit On-Chip Boot ROM
  • 224K × 16-Bit Maximum Addressable External Memory Space (64K Program, 64K Data, 64K I/O, and 32K Global)
  • 32-Bit Arithmetic Logic Unit (ALU)
    • 32-bit Accumulator (ACC)
    • 32-Bit Accumulator Buffer (ACCB)
  • 16-Bit Parallel Logic Unit (PLU)
  • 16 × 16-Bit Multiplier, 32-Bit Product
  • 11 Context-Switch Registers
  • Two Buffers for Circular Addressing
  • Full-Duplex Synchronous Serial Port
  • Time-Division Multiplexed Serial Port (TDM)
  • Timer With Control and Counter Registers
  • 16 Software Programmable Wait-State Generators
  • Divide-by-One Clock Option
  • IEEE 1149.1 Boundary Scan Logic
  • Operations Are Fully Static
  • Enhanced Performance Implanted CMOS (EPIC™) Technology Fabricated by Texas Instruments
  • Packaging
    • 141-Pin Ceramic Grid Array (GFA Suffix)
    • 132-Lead Ceramic Quad Flat Package (HFG Suffix)
    • 132-Lead Plastic Quad Flat Package (PQ Suffix)

IEEE Standard 1149.1-1990 Standard-Test-Access Port and Boundary Scan Architecture
EPIC is a trademark of Texas Instruments Incorporated.

  • Military Operating Temperature Range:
      55°C to 125°C
  • Processed to MIL-PRF-38535
  • Fast Instruction Cycle Time (30 ns and 40 ns)
  • Source-Code Compatible With All C1x and C2x Devices
  • RAM-Based Operation
    • 9K × 16-Bit Single-Cycle On-Chip Program/Data RAM
    • 1056 × 16-Bit Dual-Access On-Chip Data RAM
  • 2K × 16-Bit On-Chip Boot ROM
  • 224K × 16-Bit Maximum Addressable External Memory Space (64K Program, 64K Data, 64K I/O, and 32K Global)
  • 32-Bit Arithmetic Logic Unit (ALU)
    • 32-bit Accumulator (ACC)
    • 32-Bit Accumulator Buffer (ACCB)
  • 16-Bit Parallel Logic Unit (PLU)
  • 16 × 16-Bit Multiplier, 32-Bit Product
  • 11 Context-Switch Registers
  • Two Buffers for Circular Addressing
  • Full-Duplex Synchronous Serial Port
  • Time-Division Multiplexed Serial Port (TDM)
  • Timer With Control and Counter Registers
  • 16 Software Programmable Wait-State Generators
  • Divide-by-One Clock Option
  • IEEE 1149.1 Boundary Scan Logic
  • Operations Are Fully Static
  • Enhanced Performance Implanted CMOS (EPIC™) Technology Fabricated by Texas Instruments
  • Packaging
    • 141-Pin Ceramic Grid Array (GFA Suffix)
    • 132-Lead Ceramic Quad Flat Package (HFG Suffix)
    • 132-Lead Plastic Quad Flat Package (PQ Suffix)

IEEE Standard 1149.1-1990 Standard-Test-Access Port and Boundary Scan Architecture
EPIC is a trademark of Texas Instruments Incorporated.

The SMJ320C50 digital signal processor (DSP) is a high-performance, 16-bit, fixed-point processor manufactured in 0.72-um double-level metal CMOS technology. The SMJ320C50 is the first DSP from TI designed as a fully static device. Full-static CMOS design contributes to low power consumption while maintaining high performance, making it ideal for applications such as battery-operated communications systems, satellite systems, and advanced control algorithms.

A number of enhancements to the basic SMJ320C2x architecture give the C50 a minimum 2× performance over the previous generation. A four-deep instruction pipeline, that incorporates delayed branching, delayed call to subroutine, and delayed return from subroutine, allows the C50 to perform instructions in fewer cycles. The addition of a parallel logic unit (PLU) gives the C50 a method for manipulating bits in data memory without using the accumulator and ALU. The C50 has additional shifting and scaling capability for proper alignment of multiplicands or storage of values to data memory.

The C50 achieves its low-power consumption through the IDLE2 instruction. IDLE2 removes the functional clock from the internal hardware of the C50, which puts it into a total-sleep mode that uses only 7 uA. A low-logic level on an external interrupt with a duration of at least five clock cycles ends the IDLE2 mode.

The C50 is available with two clock speeds. The clock frequencies are 50 MHz, providing a 40-ns cycle time, and 66 MHz, providing a 30-ns cycle time. The available options are listed in Table 1.

The SMJ320C50 digital signal processor (DSP) is a high-performance, 16-bit, fixed-point processor manufactured in 0.72-um double-level metal CMOS technology. The SMJ320C50 is the first DSP from TI designed as a fully static device. Full-static CMOS design contributes to low power consumption while maintaining high performance, making it ideal for applications such as battery-operated communications systems, satellite systems, and advanced control algorithms.

A number of enhancements to the basic SMJ320C2x architecture give the C50 a minimum 2× performance over the previous generation. A four-deep instruction pipeline, that incorporates delayed branching, delayed call to subroutine, and delayed return from subroutine, allows the C50 to perform instructions in fewer cycles. The addition of a parallel logic unit (PLU) gives the C50 a method for manipulating bits in data memory without using the accumulator and ALU. The C50 has additional shifting and scaling capability for proper alignment of multiplicands or storage of values to data memory.

The C50 achieves its low-power consumption through the IDLE2 instruction. IDLE2 removes the functional clock from the internal hardware of the C50, which puts it into a total-sleep mode that uses only 7 uA. A low-logic level on an external interrupt with a duration of at least five clock cycles ends the IDLE2 mode.

The C50 is available with two clock speeds. The clock frequencies are 50 MHz, providing a 40-ns cycle time, and 66 MHz, providing a 30-ns cycle time. The available options are listed in Table 1.

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Technical documentation

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Type Title Date
* Data sheet SMJ320C50/SMQ320C50 Digital Signal Processors datasheet (Rev. B) 30 Sep 2001
* SMD SMJ320C50 SMD 5962-94558 21 Jun 2016
User guide TMS320C5x Evaluation Module Installation Guide (Rev. C) 01 Sep 1996
Application note Improving 32-Channel DTMF Decoders in PBX Systems Using the TMS320C5x DSP 01 Jun 1996
User guide TMS320C5x DSP Starter Kit User's Guide (Rev. A) 01 Jun 1996
Application note Use of the TMS320C5x Internal Oscillator With External Crystals or Resonators 01 Jul 1995
Application note A PCMCIA TMS320 DSP MediaCard for Sound and Fax/Modem Applications 01 Mar 1995
User guide TMS320C5x Emulator Installation Guide (Rev. B) 01 Dec 1994
Application note Setting Up TMS320 DSP Interrupts in 'C' 01 Nov 1994
Application note Minimizing Quantization Effects Using the TMS320 DSP Family 01 Jul 1994
Application note Telecommunications Applications With the TMS320C5x 01 Mar 1994
User guide TMS320C5x C Source Debugger User's Guide (Rev. B) 01 Feb 1994
Application note Calculation Of TMS320C5x Power Dissipation 01 Apr 1993
User guide Parallel Debug Mgr Addendum to TMS320C4x & TMS320C5x C Source Debugger UGs 01 Apr 1993

Design & development

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Simulation model

SM320C50, SMJ320C50, and SMQ320C50 BSDL Model

SGUM005.ZIP (4 KB) - BSDL Model
Design tool

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CFP (HFG) 132 View options
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CPGA (GFA) 141 View options

Ordering & quality

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