Part A
10M40DAF256I7G
Intel
- Lifecycle
- Active
- Stock
- 5032 PCS
- Package
- LBGA-256
- Series
- Embedded - FPGAs (Field Programmable Gate Array)
Replacement verdict
Compatible functional replacement candidate
The 10M40DCF256I6G is a viable functional replacement candidate for the 10M40DAF256I7G, sharing the same Intel MAX 10 device family, 40,000 logic elements, and 256-ball FBGA package. The primary distinction is the faster speed grade of the 10M40DCF256I6G, which may offer timing margin improvements but requires validation against the original design's timing constraints.
Logic Density
High match
Package Type
High match
Speed Grade
Validation required
Operating Temperature
High match
Parts at a glance
Part B
10M40DCF256I6G
Intel
- Lifecycle
- Active
- Stock
- 7809 PCS
- Package
- LBGA-256
- Series
- Embedded - FPGAs (Field Programmable Gate Array)
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | 10M40DAF256I7G | 10M40DCF256I6G | Why it matters |
|---|---|---|---|
| Family / Series | MAX 10 | MAX 10 | Both devices belong to the same Intel MAX 10 FPGA family, which is the baseline requirement for functional substitutability. |
| Logic Elements (LEs) | 40,000 | 40,000 | Matching logic density ensures the same design fits without resource overflow when swapping parts. |
| Package / Pin Count | 256-pin FBGA | 256-pin FBGA | Identical package and pin count allow a drop-in replacement on the same PCB footprint. |
| Speed Grade | 7 (faster) | 6 (slower) | Speed grade affects maximum operating frequency and timing closure; a slower grade may not meet the same timing constraints. |
| Operating Temperature Range | Industrial (-40°C to +100°C Tj) | Industrial (-40°C to +100°C Tj) | Matching temperature ranges ensure both parts operate reliably in the same environmental conditions. |
| Embedded Flash (Configuration) | Yes (single configuration image) | Yes (dual configuration image) | Dual configuration flash enables fail-safe updates and rollback, which single-configuration devices cannot provide. |
| Analog-to-Digital Converter (ADC) | Yes | Yes | Both include the integrated ADC block, so analog monitoring features remain available after substitution. |
| User Flash Memory (UFM) | Yes | Yes | On-chip user flash allows non-volatile data storage without external memory in both variants. |
| Supply Voltage (Core) | 1.2 V | 1.2 V | Identical core voltage means the same power supply design and decoupling network can be reused. |
| Configuration Method | Single image from internal flash | Dual image from internal flash | The dual-image variant supports remote reconfiguration and fallback, which is critical for field-upgradable systems. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 10M40DAF256I7G | 10M40DCF256I6G |
|---|---|---|
| Supplier | - | Intel |
| Series | MAX® 10 | MAX® 10 |
| Part Status | Active | Active |
| Number of LABs/CLBs | 2500 | 2500 |
| Number of Logic Elements/Cells | 40000 | 40000 |
| Total RAM Bits | 1290240 | 1290240 |
| Number of I/O | 178 | 178 |
| Voltage - Supply | 1.15V ~ 1.25V | 1.15V ~ 1.25V |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 100°C (TJ) | -40°C ~ 100°C (TJ) |
Frequently asked questions
What are the key differences between the 10M40DAF256I7G and the 10M40DCF256I6G?
The primary differences are the speed grade and the operating temperature range. The 10M40DAF256I7G is specified with a speed grade of 7 and an industrial temperature range (I7), while the 10M40DCF256I6G is specified with a faster speed grade of 6 and an industrial temperature range (I6). Both devices are members of the Intel (formerly Altera) MAX 10 family, feature 40,000 logic elements (LEs), and are housed in a 256-pin FineLine BGA (FBGA) package.
Are the 10M40DAF256I7G and 10M40DCF256I6G pin-to-pin compatible?
Yes. Both devices share the same 256-pin FineLine BGA (FBGA) package and the same MAX 10 10M40 device density, so they use the same pinout and PCB footprint. However, always verify the pinout in the respective device pin-out files, as configuration and I/O assignments can differ based on the specific design.
Can the 10M40DCF256I6G be used as a direct drop-in replacement for the 10M40DAF256I7G?
In many cases yes, because both are 10M40 devices in the same 256-pin FBGA package. However, the 10M40DCF256I6G has a faster speed grade (6 vs. 7), which can affect timing closure, power consumption, and I/O timing. The design must be re-timed and validated against the faster speed grade before substitution. Additionally, confirm that the configuration mode and any device-specific features (e.g., analog-to-digital converter blocks, flash memory) are identical between the two ordering codes.
What is the difference in speed grade between the 10M40DAF256I7G and the 10M40DCF256I6G?
The 10M40DAF256I7G has a speed grade of 7, while the 10M40DCF256I6G has a speed grade of 6. In Intel MAX 10 nomenclature, a lower speed grade number indicates a faster device. Therefore, the 10M40DCF256I6G offers higher performance (shorter propagation delays, higher maximum operating frequency) than the 10M40DAF256I7G.
Do both devices support the same operating temperature range?
Yes. Both the 10M40DAF256I7G and the 10M40DCF256I6G are specified for the industrial temperature range, indicated by the "I" in their ordering codes. The industrial temperature range for Intel MAX 10 devices is typically –40°C to +100°C junction temperature (TJ). Always consult the latest Intel MAX 10 device datasheet for the exact temperature specifications.
What are the logic density and memory resources of the 10M40DAF256I7G and 10M40DCF256I6G?
Both devices are 10M40 parts, which means they each provide 40,000 logic elements (LEs). They also include the same embedded memory blocks (M9K) and user flash memory (UFM) capacity as defined by the MAX 10 10M40 device specification. For exact memory block counts and UFM sizes, refer to the Intel MAX 10 device overview or datasheet.
Which device is more suitable for high-performance applications?
The 10M40DCF256I6G is more suitable for high-performance applications because its speed grade 6 provides faster timing characteristics than the speed grade 7 of the 10M40DAF256I7G. However, the faster device may also consume slightly more power. The choice depends on the design's timing margin, power budget, and cost targets.
Are the configuration and programming methods identical for both devices?
Yes. Both the 10M40DAF256I7G and the 10M40DCF256I6G belong to the Intel MAX 10 family and support the same configuration schemes, including internal configuration (via on-chip flash), JTAG, and external configuration. The programming files (.pof, .sof) are generated for the specific device and speed grade, so separate programming files are required for each ordering code.