66AK2H12DAAWA2

Overview

The Texas Instruments 66AK2H12DAAWA2 is a KeyStone II System-on-Chip featuring eight TMS320C66x DSP cores and four ARM Cortex-A15 processors. The C66x cores operate at up to 1.2 GHz, delivering 38.4 GMacs/core for fixed-point and 19.2 GFlops/core for floating-point processing. The ARM cores run at up to 1.4 GHz with 4 MB of shared L2 cache. The device includes 6 MB of MSM SRAM, two 72-bit DDR3/DDR3L interfaces supporting speeds up to 1600 MHz, and a Network Coprocessor providing packet acceleration and security functions. It is housed in a 1517-pin FCBGA package.

Feature Summary

• Eight TMS320C66x DSP CorePacs operating at up to 1.2 GHz
• Four ARM Cortex-A15 MPCore processors operating at up to 1.4 GHz
• Network Coprocessor with Packet Accelerator and Security Accelerator Engine
• Two 72-bit DDR3/DDR3L memory controllers supporting up to 1600 MHz

Applications

• Mission Critical Systems
• Cloud Computing Infrastructure
• High-Performance Computing
• Media Processing and Transcoding
• Security Appliances

Procurement Notes

Verify the specific revision grade (e.g., PG 1.0 through 3.1) via the JTAG ID register or datasheet documentation before procurement. Confirm that the required I/O voltage levels (0.85 V, 1.0 V, 1.35 V, 1.5 V, 1.8 V, 3.3 V) match the target board design. Ensure compliance with humidity sensitivity requirements during storage and handling.

Selection Notes

Select this model over the 66AK2H14 if ten-gigabit Ethernet (XFI ports) is not required, as these pins are reserved on the 66AK2H12. Compare against the 66AK2H06 if fewer than eight DSP cores are sufficient, noting the reduction to four DSPs and two ARM cores in the lower-tier variant. Verify thermal management capabilities for the extended temperature range (-40°C to 100°C).

Part Context

This component belongs to the 66AK2Hxx family within the Texas Instruments KeyStone II architecture portfolio. It shares the same 1517-pin AAW package and core processor specifications as the 66AK2H14 and 66AK2H06. The primary distinction lies in peripheral availability, specifically the omission of the 10-GbE switch subsystem found in the 66AK2H14.

Replacement Considerations

Direct functional replacements within the same package include the 66AK2H14AXAAW24 (includes 10GbE) and 66AK2H06 variants. Cross-family migration requires significant architectural changes.