Texas Instruments 66AK2H14BAAW24

Overview

66AK2H14BAAW24 from Texas Instruments is a KeyStone II multicore SoC integrating four ARM Cortex-A15 processors (up to 1.4 GHz) and eight TMS320C66x DSP cores (up to 1.2 GHz), with 6 MB MSMC SRAM, dual 72-bit DDR3/DDR3L interfaces (1600 MHz), and integrated 10-GbE switch subsystem featuring two XFI ports and IEEE 1588 support. It targets high-performance media processing, cloud infrastructure, and secure networking equipment.

For engineers reviewing the 66AK2H14BAAW24 datasheet, 66AK2H14BAAW24 pinout, 66AK2H14BAAW24 application, or 66AK2H14BAAW24 equivalent, key selection criteria include its 10-GbE switching capability, hardware-accelerated packet and security processing (IPsec up to 2.4 Gbps), dual DDR3L EMIF bandwidth, and 1517-pin AAW BGA package with defined XFI/SRIO/PCIe/SGMII signal routing.

Technical Context

The 66AK2H14BAAW24 implements a heterogeneous multicore architecture where ARM cores handle OS-level tasks and control plane functions while C66x DSPs execute real-time signal and media processing. Its Multicore Navigator provides 16k hardware queues and zero-overhead packet DMA, tightly coupled with the Network Coprocessor's Packet Accelerator and Security Accelerator engines.

Memory coherency is maintained via AMBA 4.0 ACE master ports connecting ARM L2 cache to the MSMC, while the 6 MB shared MSM SRAM serves as low-latency inter-processor communication memory. The device uses five on-chip PLLs for domain-specific clock generation, including dedicated DDR3A/B, ARM, and PASS PLLs, supporting independent voltage/frequency scaling per subsystem.

Key Specifications

Pinout & Package

The 66AK2H14BAAW24 is housed in a 40.0 mm × 40.0 mm, 1517-ball flip-chip plastic BGA (package code AAW), with 1.0 mm ball pitch and Pb-free/NiPdAu finish. Thermal design requires mechanical mounting and heatsink interface per TI SPRUHZ1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 66AK2H12BAAW24 and K2HKX24AABW24, the 66AK2H14BAAW24 uniquely delivers production-ready 10-GbE XFI switching in a single-package solution, enabling higher-bandwidth infrastructure nodes without external switch fabric or PHY bridging.

Availability

66AK2H14BAAW24 is available at Aetrix Electronics and suitable for cloud computing infrastructure, media transcoding servers, and secure network gateways requiring stable component supply across extended product lifecycles.

Supply support for 66AK2H14BAAW24 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 headquartered in Dallas, Texas, specializing in analog, embedded processing, and digital signal processing technologies for industrial, automotive, and communications markets.

The 66AK2H14BAAW24 belongs to TI's KeyStone II multicore DSP+ARM platform, designed specifically for high-throughput, low-latency infrastructure applications including wireless baseband, media processing, and secure networking.

FAQ

What is the maximum operating frequency of the ARM and DSP cores in the 66AK2H14BAAW24?

The 66AK2H14BAAW24 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 specified under recommended operating conditions with proper thermal management and SmartReflex voltage scaling enabled. The 66AK2H14BAAW24 datasheet confirms these values in Section 5.3 and Table 3-1.

Does the 66AK2H14BAAW24 support DDR3L memory, and what are the interface specifications?

Yes, the 66AK2H14BAAW24 supports DDR3L memory via two independent 72-bit interfaces running at up to 1600 MHz, delivering >25 GB/s aggregate bandwidth. Each interface supports 1.35 V DDR3L operation and includes full command/address/data bus termination, on-die termination calibration, and dynamic ODT control. This is documented in Section 11.9 and Table 3-1 of the 66AK2H14BAAW24 datasheet.

How many 10-GbE ports does the 66AK2H14BAAW24 provide, and what physical interface do they use?

The 66AK2H14BAAW24 provides two 10-GbE ports implemented as XFI (10 Gigabit Serial Interface) differential pairs-specifically XFIRXP0/XFIRXN0 and XFITXP0/XFITXN0. These support 10.3125 Gbps serial data transmission with AC coupling and require external 10-GbE PHYs. This capability is exclusive to the 66AK2H14BAAW24 within the 66AK2Hxx family, as confirmed in Section 1.1 and Table 3-1.

What hardware accelerators are integrated into the 66AK2H14BAAW24 for networking and security functions?

The 66AK2H14BAAW24 integrates a dedicated Network Coprocessor containing a Packet Accelerator (supporting IPsec, GTP-U, SCTP, PDCP, RoHC) and a Security Accelerator (supporting AES, SHA-2, DES, 3DES, Kasumi, SNOW 3G). Together they deliver up to 2.4 Gbps IPSec and 2.4 Gbps air ciphering throughput. These are detailed in Section 1.1 and Section 11.15–11.16 of the 66AK2H14BAAW24 documentation.

Is the 66AK2H14BAAW24 pin-compatible with other devices in the 66AK2Hxx family, such as the 66AK2H12BAAW24?

The 66AK2H14BAAW24 shares the same 1517-pin AAW BGA package and pinout with the 66AK2H12BAAW24 and 66AK2H06BAAW24, but 14 balls reserved for XFI functionality in the 66AK2H14BAAW24 are NC/no-connect in the other variants. Board designs targeting 66AK2H14BAAW24 must allocate those XFI pins; using 66AK2H12BAAW24 on the same PCB requires careful signal routing review per Figure 4-1 and Section 4.1 of the 66AK2H14BAAW24 datasheet.