Texas Instruments X66AK2H12AAW2

Overview

X66AK2H12AAW2 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 shared MSMC SRAM, dual 72-bit DDR3/DDR3L interfaces (1600 MHz), and integrated 5-port Gigabit Ethernet switch. It targets high-performance media processing, network infrastructure, and embedded analytics.

For engineers reviewing the X66AK2H12AAW2 datasheet, X66AK2H12AAW2 pinout, X66AK2H12AAW2 application, or X66AK2H12AAW2 equivalent, key selection criteria include ARM+DSP core count, MSMC size, DDR3 bandwidth, Ethernet switching capability, and thermal grade (–40°C to 100°C extended case temperature).

Technical Context

The X66AK2H12AAW2 implements a heterogeneous multicore architecture where the ARM CorePac handles OS-level tasks and system control while the C66x DSP CorePacs execute real-time signal processing at up to 38.4 GMACs/core (fixed-point) and 19.2 GFLOPs/core (floating-point). Coherency is maintained via AMBA 4.0 ACE master ports linking ARM L2 cache to the MSMC.

Its Multicore Navigator provides 16k hardware queues and packet-based DMA for zero-overhead data movement between peripherals and memory domains. The Network Coprocessor integrates Packet Accelerator (IPsec, GTP-U, PDCP) and Security Accelerator (AES, SHA-2, Kasumi, SNOW 3G) supporting up to 2.4 Gbps IPSec throughput and 1-Gbps wire-speed packet processing.

Key Specifications

Pinout & Package

The X66AK2H12AAW2 is housed in a 1517-pin flip-chip plastic BGA package (AAW) measuring 40.0 mm × 40.0 mm, with 1.0 mm ball pitch and Pb-free finish. Thermal dissipation is managed via exposed thermal pad on underside.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TDA4VM and 66AK2G12, the X66AK2H12AAW2 delivers unmatched packet processing throughput and interconnect flexibility (SRIO, HyperLink, PCIe) for infrastructure-class workloads, but requires higher board area and thermal management.

Availability

X66AK2H12AAW2 is available at Aetrix Electronics and suitable for wireless infrastructure, media gateway, and industrial analytics applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for X66AK2H12AAW2 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, delivering analog and embedded processing solutions for industrial, automotive, and communications markets.

The 66AK2Hxx product line was designed specifically for high-throughput, low-latency embedded infrastructure-combining ARM application processing with DSP signal processing and hardware accelerators for telecom, media, and analytics workloads.

FAQ

What is the maximum operating frequency of the ARM and DSP cores in the X66AK2H12AAW2?

The X66AK2H12AAW2 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 extended temperature conditions (–40°C to +100°C) with appropriate voltage and cooling. The X66AK2H12AAW2 datasheet specifies these as absolute maximum operational frequencies for the device.

Does the X66AK2H12AAW2 support DDR3L memory, and what are the voltage requirements?

Yes, the X66AK2H12AAW2 supports both DDR3 and DDR3L memory via its dual 72-bit EMIFs. DDR3L operation requires DVDD15 supply at 1.35 V (±3%), while standard DDR3 uses 1.5 V (±3%). The X66AK2H12AAW2's power management supports dynamic voltage scaling for optimal power efficiency across memory configurations.

How many Gigabit Ethernet ports does the X66AK2H12AAW2 integrate, and what interface do they use?

The X66AK2H12AAW2 integrates a 5-port Gigabit Ethernet switch subsystem with four SGMII interfaces for connection to external PHYs or optical modules. The fifth port is internal and used for CPU-to-switch communication. This eliminates the need for an external switch IC in edge networking applications, reducing BOM cost and board area for the X66AK2H12AAW2 design.

What hardware accelerators are included in the X66AK2H12AAW2, and what protocols do they support?

The X66AK2H12AAW2 includes two dedicated hardware accelerators: the Packet Accelerator supports GTP-U, SCTP, PDCP, and RoHC; the Security Accelerator supports AES, SHA-2 (256-bit), HMAC, CMAC, Kasumi, and SNOW 3G. These accelerators offload protocol processing from CPU cores, enabling the X66AK2H12AAW2 to sustain 1-Gbps wire-speed throughput with minimal software overhead.

Is the X66AK2H12AAW2 pin-compatible with other devices in the 66AK2Hxx family, such as the X66AK2H14AAW2?

Yes, the X66AK2H12AAW2 shares the same AAW package (1517-pin BGA, 40 mm × 40 mm) and pinout with X66AK2H14AAW2 and X66AK2H06AAW2. However, certain pins reserved for 10-GbE (XFI) on the X66AK2H14AAW2 are No Connect (NC) on the X66AK2H12AAW2. Full compatibility requires verifying peripheral enablement and register configuration per device variant in the X66AK2H12AAW2 datasheet.