Texas Instruments 66AK2H12DXAAWA24

Overview

66AK2H12DXAAWA24 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 shared MSMC SRAM, dual 72-bit DDR3/DDR3L interfaces (1600 MHz), and integrated network coprocessor supporting 1-Gbps wire-speed packet acceleration and security offload. It targets high-performance media processing and embedded infrastructure systems.

For engineers reviewing the 66AK2H12DXAAWA24 datasheet, 66AK2H12DXAAWA24 pinout, 66AK2H12DXAAWA24 application, or 66AK2H12DXAAWA24 equivalent, key selection considerations include its 1517-pin AAW BGA package, 20 × 64-bit timers, five EDMA modules, and absence of 10-GbE XFI ports (reserved in this variant), distinguishing it from the 66AK2H14.

Technical Context

The 66AK2H12DXAAWA24 implements a heterogeneous multicore architecture where ARM A15 cores handle general-purpose OS execution and system control, while C66x DSP cores perform real-time signal and media processing. Its Multicore Navigator provides 16k hardware queues and zero-overhead packet DMA for inter-core data movement.

The integrated Network Coprocessor includes dedicated Packet Accelerator (supporting GTP-U, SCTP, PDCP, RoHC) and Security Accelerator (AES, SHA-2, HMAC, IPSec up to 2.4 Gbps), enabling offload of L2/L3 protocol stack and cryptographic operations from the main CPU cluster.

Key Specifications

Pinout & Package

66AK2H12DXAAWA24 uses a 1517-ball flip-chip plastic BGA (package code AAW, 40.0 mm × 40.0 mm), with ball pitch of 1.0 mm. Pin functions are defined per TI SPRS866G Rev G, with reserved XFI balls (for 10-GbE) unused in this variant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 66AK2H14DXAAWA24, the 66AK2H12DXAAWA24 removes 10-GbE XFI pins while retaining identical DSP/ARM performance and memory bandwidth-ideal for 1-GbE-centric infrastructure. Against 66AK2H06DXAAWA24, it doubles DSP core count and ARM cores, enabling higher concurrency in real-time media pipelines.

Availability

66AK2H12DXAAWA24 is available at Aetrix Electronics and suitable for wireless infrastructure, media transcoding, and secure networking applications requiring stable component supply across long product lifecycles.

Supply support for 66AK2H12DXAAWA24 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 digital signal processing technologies, with leadership in high-performance SoCs for communications and industrial markets.

The 66AK2Hxx family was designed for embedded infrastructure applications including cloud computing, media processing, security, and wireless baseband-delivering multicore DSP+ARM integration with hardware-accelerated networking and security.

FAQ

What is the maximum operating frequency of the ARM and DSP cores in the 66AK2H12DXAAWA24?

The 66AK2H12DXAAWA24 features 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 guaranteed under recommended operating conditions (0°C to 85°C case temperature) and supported by SmartReflex™ dynamic voltage scaling. The 66AK2H12DXAAWA24 delivers 5.6 GHz aggregate ARM compute and 9.6 GHz aggregate DSP compute.

Does the 66AK2H12DXAAWA24 support DDR3L memory?

Yes, the 66AK2H12DXAAWA24 supports both DDR3 and DDR3L memory through its dual 72-bit DDR3/DDR3L interfaces, which operate at speeds up to 1600 MHz. The device accommodates 1.35 V DDR3L operation alongside standard 1.5 V DDR3, as confirmed in Revision G of the SPRS866G datasheet. This flexibility allows optimization of power consumption in thermally constrained systems.

How many 64-bit timers does the 66AK2H12DXAAWA24 include?

The 66AK2H12DXAAWA24 includes twenty 64-bit configurable timers, as specified in Table 3-1 of the SPRS866G datasheet. This matches the 66AK2H14 and exceeds the fourteen 64-bit timers in the 66AK2H06 variant. These timers support precise time-stamping, PWM generation, and periodic interrupt generation critical for real-time media and networking applications.

Is the 66AK2H12DXAAWA24 pin-compatible with the 66AK2H14DXAAWA24?

The 66AK2H12DXAAWA24 shares the same 1517-pin AAW BGA package and pinout with the 66AK2H14DXAAWA24, but 14 XFI balls designated for 10-GbE in the 66AK2H14 are reserved (no-connect) in the 66AK2H12DXAAWA24. While PCB layout is identical, the 66AK2H12DXAAWA24 cannot support 10-GbE functionality without hardware redesign to route those reserved balls.

What security protocols does the integrated Security Accelerator in the 66AK2H12DXAAWA24 support?

The 66AK2H12DXAAWA24 Security Accelerator supports IPSec (ECB/CBC/CTR/GCM), SSL/TLS, 3GPP air interface (Kasumi, SNOW 3G), WiMAX, SRTP, and cryptographic primitives including AES, DES, 3DES, SHA-1/SHA-2 (256-bit), MD5, HMAC, CMAC, and GMAC. It delivers up to 2.4 Gbps IPSec throughput and 2.4 Gbps air ciphering, as documented in the SPRS866G feature list.