Texas Instruments 66AK2H12DAAW24

Overview

66AK2H12DAAW24 from Texas Instruments is a KeyStone II multicore SoC integrating four ARM Cortex-A15 processors (up to 1.4 GHz), eight C66x DSP cores (up to 1.2 GHz), 6 MB MSMC SRAM, dual 72-bit DDR3/DDR3L interfaces (1600 MHz), and a 5-port Gigabit Ethernet switch - designed for media processing, cloud infrastructure, and high-performance computing applications.

For engineers reviewing the 66AK2H12DAAW24 datasheet, 66AK2H12DAAW24 pinout, 66AK2H12DAAW24 application, or 66AK2H12DAAW24 equivalent, key selection considerations include ARM+DSP heterogeneous compute capability, hardware-accelerated packet and security processing, IEEE 1588 time synchronization, PCIe Gen2, SRIO 2.1, and HyperLink interconnect scalability.

Technical Context

The 66AK2H12DAAW24 implements a tightly coupled ARM-DSP architecture with AMBA 4.0 ACE coherency between the quad-core A15 cluster and shared MSMC memory, enabling low-latency data sharing across CPU and DSP subsystems. Its Multicore Navigator provides 16k hardware queues and zero-overhead packet DMA for offloading I/O bottlenecks.

Network Coprocessor integration includes dedicated Packet Accelerator (supporting GTP-U, SCTP, PDCP, RoHC) and Security Accelerator (AES, SHA-2, HMAC, IPSec up to 2.4 Gbps), both operating independently of main CPU cores to sustain wire-speed 1-Gbps throughput with full L2/L3 protocol stack acceleration.

Key Specifications

Pinout & Package

66AK2H12DAAW24 uses a 1517-ball flip-chip plastic BGA package (AAW), 40 mm × 40 mm, with 1.0 mm ball pitch. Pin functions are defined per TI SPRS866G Rev G, including dedicated banks for DDR3/DDR3L (72-bit ×2), SGMII (4 ports), PCIe Gen2 (2 lanes), SRIO 2.1 (4 lanes), HyperLink (2 ×4), USB 3.0, and multiple I²C/SPI/UART peripherals.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar multicore DSP+ARM infrastructure applications.

Compared with 66AK2H14DAAW24, the 66AK2H12DAAW24 delivers identical DSP/ARM compute and packet acceleration but trades 10-GbE for broader SGMII flexibility and extended temperature support; versus 66AK2E05DAAW24, it doubles DSP count and adds 2 MB MSMC for demanding real-time analytics pipelines.

Availability

66AK2H12DAAW24 is available at Aetrix Electronics and suitable for cloud infrastructure, wireless baseband processing, and industrial time-sensitive networking requiring stable component supply across long product lifecycles.

Supply support for 66AK2H12DAAW24 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 company specializing in analog, embedded processing, and connectivity technologies with leadership in high-performance DSP and ARM-based SoCs.

The 66AK2H12DAAW24 belongs to TI's KeyStone II multicore platform, engineered for infrastructure-class applications demanding deterministic real-time processing, hardware-accelerated networking, and scalable heterogeneous compute in a single chip.

FAQ

What is the maximum operating frequency of the ARM and DSP cores in the 66AK2H12DAAW24?

The 66AK2H12DAAW24 integrates four ARM Cortex-A15 processors operating up to 1.4 GHz and eight TMS320C66x DSP cores operating up to 1.2 GHz. These frequencies are validated under industrial temperature conditions (–40°C to 100°C) with appropriate power delivery and thermal management per TI SPRS866G specifications. The 66AK2H12DAAW24 does not support overclocking beyond these rated speeds.

Does the 66AK2H12DAAW24 support DDR3L memory, and what voltage levels are required?

Yes, the 66AK2H12DAAW24 supports both DDR3 and DDR3L memory via its dual 72-bit interfaces, with DVDD15 power supplies configurable for 1.35 V (DDR3L) or 1.5 V (DDR3) operation. Voltage tolerance and sequencing requirements are specified in Section 5.3 of the SPRS866G datasheet, and the 66AK2H12DAAW24 includes on-die termination and dynamic VREF calibration for robust signal integrity.

How many SGMII ports does the 66AK2H12DAAW24 provide, and are they fully independent?

The 66AK2H12DAAW24 provides four independent SGMII ports (SGMII0–SGMII3), each with dedicated differential RX/TX pairs, MDIO management interface, and hardware IEEE 1588 timestamping. These ports connect directly to external PHYs or switches and operate concurrently at 1.25 Gbps with full-duplex capability - confirmed in Table 3-1 and Figure 1-2 of SPRS866G.

What hardware accelerators are integrated into the 66AK2H12DAAW24 for network processing?

The 66AK2H12DAAW24 integrates two dedicated hardware accelerators: the Packet Accelerator (supporting GTP-U, SCTP, PDCP, RoHC, and L2 air ciphering) and the Security Accelerator (supporting AES, SHA-2, HMAC, IPSec, and SSL/TLS). Together they deliver 1-Gbps wire-speed throughput with zero CPU overhead - detailed in Sections 1.1 and 11.15–11.16 of SPRS866G.

Is the 66AK2H12DAAW24 pin-compatible with other devices in the 66AK2Hxx family?

Yes, the 66AK2H12DAAW24 shares the same 1517-pin AAW package footprint and pin mapping with 66AK2H14DAAW24 and 66AK2H06DAAW24, including identical power, ground, DDR3, SGMII, PCIe, and SRIO ball assignments. Per Figure 4-1 and Section 4.2 of SPRS866G, only the 14 XFI balls reserved in 66AK2H14 are NC in 66AK2H12DAAW24 - enabling drop-in replacement in non-10G designs.