Texas Instruments 66AK2H12DAAWA24

Overview

66AK2H12DAAWA24 from Texas Instruments is a KeyStone II–based 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 a 5-port Gigabit Ethernet switch. It delivers 5.6 GHz ARM + 9.6 GHz DSP compute for media processing, wireless infrastructure, and secure packet forwarding.

For engineers reviewing the 66AK2H12DAAWA24 datasheet, 66AK2H12DAAWA24 pinout, 66AK2H12DAAWA24 application, or 66AK2H12DAAWA24 equivalent, key selection factors include its 1517-pin AAW BGA package, 20 × 64-bit timers, PCIe Gen2 ×2, SRIO 2.1 ×4, USB 3.0, and hardware-accelerated IPsec/GTP-U/PDCP at 1.5 Mpps wire speed.

Technical Context

The 66AK2H12DAAWA24 implements a tightly coupled heterogeneous architecture: ARM A15 cores handle OS, control plane, and high-level protocol stacks via AMBA 4.0 ACE coherency, while C66x DSPs execute real-time signal, video, and baseband processing in parallel. The Multicore Navigator provides 16k hardware queues and zero-overhead packet DMA between peripherals and memory subsystems.

Its Network Coprocessor integrates independent Packet Accelerator and Security Accelerator engines-supporting Transport Plane IPsec, GTP-U, SCTP, PDCP, RoHC, and air ciphering (AES, SHA-2, Kasumi, SNOW 3G)-with up to 2.4 Gbps IPSec throughput and IEEE 1588 time synchronization across all five SGMII ports.

Key Specifications

Pinout & Package

66AK2H12DAAWA24 uses a 1517-ball flip-chip plastic BGA (package code AAW), 40 mm × 40 mm, 1.0 mm ball pitch. Ball map includes dedicated banks for DDR3/DDR3L (72-bit ×2), SGMII (5 ports), PCIe Gen2 (2 lanes), SRIO 2.1 (4 lanes), HyperLink (2 ×4), USB 3.0, and power/ground distribution across multiple voltage domains (DVDD15, CVDD, VDDAHV, VDDALV, DVDD18, AVDDA).

Key Features

Applications

Equivalent & Alternatives

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

Compared with 66AK2H14DAAWA24, the 66AK2H12DAAWA24 removes 10-GbE hardware but retains full DSP/ARM performance and security acceleration - making it optimal for 1-GbE–centric infrastructure. Against 66AK2E05DAAWA24, it doubles both DSP and ARM core count while maintaining identical package and software compatibility - enabling seamless performance scaling without PCB redesign.

Availability

66AK2H12DAAWA24 is available at Aetrix Electronics and suitable for wireless infrastructure, video analytics, secure media gateways, and high-performance computing applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for 66AK2H12DAAWA24 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 for infrastructure and industrial markets.

The 66AK2Hxx product line was designed for embedded infrastructure applications including cloud computing, media processing, transcoding, security, and wireless baseband - delivering integrated DSP+ARM compute, hardware acceleration, and scalable interconnect in a single die.

FAQ

What is the maximum operating frequency of the ARM and DSP cores in the 66AK2H12DAAWA24?

The 66AK2H12DAAWA24 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) with appropriate power delivery and thermal management. The 66AK2H12DAAWA24 achieves 5.6 GHz aggregate ARM compute and 9.6 GHz aggregate DSP compute, validated in TI's SPRS866G datasheet revision G.

Does the 66AK2H12DAAWA24 support DDR3L memory, and what are the voltage requirements?

Yes, the 66AK2H12DAAWA24 supports both DDR3 and DDR3L memory across its dual 72-bit interfaces, with DDR3L operation enabled at 1.35 V (DVDD15 supply). The device specifies DVDD15 as 1.35/1.5 V in its Recommended Operating Conditions table, allowing flexible memory selection based on system power and thermal targets. This dual-voltage support is confirmed in revision G of the SPRS866G datasheet.

How many Ethernet ports does the 66AK2H12DAAWA24 integrate, and what standards do they support?

The 66AK2H12DAAWA24 integrates a five-port Gigabit Ethernet switch subsystem using SGMII physical interfaces - supporting IEEE 802.3, IEEE 1588-2008 Annex D/E (PTP), and SyncE. It does not include XFI 10-GbE ports (reserved in this variant), distinguishing it from the 66AK2H14. All five SGMII ports are fully functional and share the integrated switch fabric and packet acceleration engine.

Is the 66AK2H12DAAWA24 pin-compatible with other devices in the 66AK2Hxx family?

Yes, the 66AK2H12DAAWA24 shares the identical 1517-pin AAW BGA package and ball map with 66AK2H14DAAWA24 and 66AK2H06DAAWA24. Pin functions are consistent across the family, with unused pins (e.g., XFI signals in 66AK2H12/06) designated as reserved (RSV) per Figure 4-1 and Table 3-1 in SPRS866G. This enables common PCB layout across variants.

What hardware security features are implemented in the 66AK2H12DAAWA24?

The 66AK2H12DAAWA24 includes a dedicated Security Accelerator engine supporting ECB/CBC/CTR/A5/3/CCM/GCM/HMAC/CMAC/GMAC/AES/DES/3DES/Kasumi/SNOW 3G/SHA-1/SHA-2/MD5 - delivering up to 2.4 Gbps IPSec and 2.4 Gbps air ciphering throughput. These functions are hardware-accelerated and operate independently of the ARM and DSP cores, as documented in Section 11.16 of SPRS866G.