Part A
AM5718AABCXA
STマイクロエレクトロニクス
- Lifecycle
- Active
- Stock
- 3954 個数
- Package
- FCBGA-760
- Series
- 組み込み - マイクロプロセッサ
Replacement verdict
Compatible functional replacement candidate
The AM5718AZBOXEM is a functional replacement candidate for the AM5718AABCXA, as both devices share the same Sitara AM5718 superset SoC architecture, core configuration, and FCBGA package family. Designers should validate the extended temperature operating range and confirm the specific speed grade and qualification level required by the target application before committing to a drop-in substitution.
Processor Core Architecture
High match
Package Type
High match
Operating Temperature Range
Validation required
Speed Grade and Qualification Level
Validation required
Parts at a glance
Part B
AM5718AZBOXEM
STマイクロエレクトロニクス
- Lifecycle
- Active
- Stock
- 4440 個数
- Package
- BGA-780
- Series
- 組み込み - マイクロプロセッサ
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AM5718AABCXA | AM5718AZBOXEM | Why it matters |
|---|---|---|---|
| Operating Temperature Range | -40°C to 105°C (industrial) | -40°C to 125°C (extended/automotive) | The wider temperature range of the ZBOXEM variant allows operation in harsher environments, which is critical for automotive and industrial applications requiring extended thermal tolerance. |
| Package / Pin Count | FCBGA, 760 balls | FCBGA, 760 balls | Both use the same 760-ball FCBGA package, so board-level footprint and layout are compatible, but the suffix differences indicate different qualification grades rather than mechanical differences. |
| Qualification Grade | Industrial grade | Automotive/Extended grade (EM suffix) | The EM suffix denotes enhanced qualification (often automotive AEC-Q100 or extended reliability screening), which affects suitability for safety-critical or automotive designs. |
| CPU Core | Dual-core ARM Cortex-A15 | Dual-core ARM Cortex-A15 | Identical processing core ensures the same software and firmware can run on both devices without recompilation or architectural changes. |
| DSP / Co-processor | C66x DSP + dual Cortex-M4 + PRU-ICSS | C66x DSP + dual Cortex-M4 + PRU-ICSS | Matching heterogeneous compute blocks (DSP, M4, PRU) means real-time control and signal-processing workloads are functionally interchangeable between the two parts. |
| Maximum CPU Clock | 1.5 GHz | 1.5 GHz | Same maximum clock speed means equivalent performance headroom for compute-intensive tasks, so no throughput penalty when substituting. |
| Memory Interface | DDR3/DDR3L, up to 2 GB | DDR3/DDR3L, up to 2 GB | Identical external memory support ensures the same memory devices and PCB routing can be reused across both variants. |
| Core Supply Voltage | 0.9 V to 1.15 V (adaptive) | 0.9 V to 1.15 V (adaptive) | Same adaptive voltage range means the same power management IC configuration and DVFS scheme can be used for both parts. |
| Product Lifecycle / Target Market | General industrial / catalog | Automotive / extended-reliability | The lifecycle and target-market distinction affects long-term availability commitments and documentation (e.g., PPAP, functional safety) required by the end application. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AM5718AABCXA | AM5718AZBOXEM |
|---|---|---|
| Supplier | - | Texas Instruments |
| Series | Sitara™ | Sitara™ |
| Part Status | Active | Active |
| Core Processor | ARM® Cortex®-A15 | ARM® Cortex®-A15 |
| Number of Cores / Bus Width | 1 Core, 32-Bit | 1 Core, 32-Bit |
| Speed | 1.5GHz | 1.5GHz |
| Co - Processors / DSP | Multimedia; GPU, IPU, VFP | DSP, BB2D, IPU, IVA, GPU, VPE |
| RAM Controllers | DDR3, SRAM | DDR3, DDR3L |
| Graphics Acceleration | Yes | Yes |
| SATA | SATA 3Gbps (1) | SATA 3Gbps (1) |
| USB | USB 2.0 (1), USB 3.0 (1) | USB 2.0 (2), USB 3.0 (2) + PHY (2) |
| Voltage - I / O | 1.8V, 3.3V | 1.8V, 3.3V |
| Operating Temperature | -40°C ~ 105°C (TJ) | -55°C ~ 125°C |
| Display&Interface Controllers | HDMI | - |
| Ethernet | 10/100/1000Mbps (1) | - |
Frequently asked questions
What are the key differences between the AM5718AABCXA and AM5718AZBOXEM?
Both are Sitara AM5718 processors from Texas Instruments featuring a single-core Arm Cortex-A15, dual-core C66x DSP, dual-core PRU-ICSS, and 3D graphics. The primary difference is the package and temperature grade: the AM5718AABCXA is supplied in a 760-pin FCBGA (ABC) package rated for the commercial temperature range (0°C to 90°C junction), while the AM5718AZBOXEM is supplied in a 760-pin FCBGA (BOX) package rated for the extended temperature range (-40°C to 105°C junction).
Are the AM5718AABCXA and AM5718AZBOXEM pin-to-pin and footprint compatible?
Yes. Both devices use the same 760-ball FCBGA package with a 0.8 mm ball pitch and identical ball map, so they share the same PCB footprint and land pattern. The difference lies in the temperature grade and the package designator (ABC vs BOX), not the physical ballout.
Can the AM5718AABCXA be used as a drop-in replacement for the AM5718AZBOXEM?
Functionally the silicon is the same AM5718 device, and the package footprint is identical, so a drop-in replacement is possible from a layout perspective. However, the AM5718AABCXA is only rated for the commercial temperature range (0°C to 90°C junction), whereas the AM5718AZBOXEM is rated for the extended range (-40°C to 105°C junction). Substitution is only valid if the target application's operating conditions remain within the commercial grade limits.
What is the operating junction temperature range for each device?
The AM5718AABCXA (ABC package) is specified for a commercial junction temperature range of 0°C to 90°C. The AM5718AZBOXEM (BOX package) is specified for an extended junction temperature range of -40°C to 105°C. Designs requiring operation below 0°C or above 90°C junction must use the extended-grade AM5718AZBOXEM.
Do both devices share the same core architecture and feature set?
Yes. Both are AM5718 devices built on the same Sitara platform, integrating a single-core Arm Cortex-A15 up to 1.5 GHz, dual-core C66x floating-point DSP, dual-core Programmable Real-Time Unit and Industrial Communication Subsystem (PRU-ICSS), 3D graphics accelerator, and a broad set of peripherals including PCIe, USB 3.0, Gigabit Ethernet, and display subsystems. The feature set is identical; only the package temperature grade differs.
Which device should be selected for industrial or automotive-adjacent environments?
For environments that may see temperatures below 0°C or above 90°C junction, the AM5718AZBOXEM should be selected because it carries the extended -40°C to 105°C junction temperature rating. The AM5718AABCXA is intended for commercial-temperature applications where the junction remains within 0°C to 90°C.
Are both devices available in the same 760-ball FCBGA package with 0.8 mm pitch?
Yes. Both the AM5718AABCXA and AM5718AZBOXEM are offered in a 760-ball FCBGA package with 0.8 mm ball pitch. The package designators ABC and BOX refer to the specific package/temperature variant, but the ball count, pitch, and physical dimensions are the same, allowing a common PCB land pattern.