Part A
10M40DAF256C8G
Intel
- Lifecycle
- Active
- Stock
- 5091 PCS
- Package
- LBGA-256
- Series
- Embedded - FPGAs (Field Programmable Gate Array)
Replacement verdict
Compatible functional replacement candidate
The 10M40DAF256C8G and 10M40DCF256I7G are both Intel MAX 10 FPGA devices sharing the same 40K logic element density and 256-ball FineLine BGA package, making them functionally interchangeable in many designs. However, the 10M40DCF256I7G offers a faster speed grade and a wider industrial temperature range, while the 10M40DAF256C8G targets commercial applications with lower power and cost. Designers should validate timing closure, thermal margins, and power budgeting before substituting one for the other in production.
Logic Density
High match
Package Type
High match
Speed Grade
Validation required
Operating Temperature
Validation required
Parts at a glance
Part B
10M40DCF256I7G
Intel
- Lifecycle
- Active
- Stock
- 4120 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 | 10M40DAF256C8G | 10M40DCF256I7G | Why it matters |
|---|---|---|---|
| Family / Series | MAX 10 | MAX 10 | Both devices belong to the same Intel MAX 10 FPGA family, which is essential for pinout, toolchain, and IP compatibility. |
| Logic Elements (LEs) | 40,000 | 40,000 | Matching logic density ensures equivalent capacity for implementing the same digital design without resource overflow. |
| Embedded Memory | 1,260 Kbits | 1,260 Kbits | Identical on-chip memory supports the same buffering, FIFO, and data storage requirements in a design. |
| Package | 256-pin FBGA | 256-pin FBGA | Same package and pin count allow a drop-in board-level replacement without PCB redesign. |
| Operating Temperature Range | 0°C to 85°C (Commercial) | -40°C to 100°C (Industrial) | The industrial-grade version supports harsher environments, so substitution depends on the target application's thermal requirements. |
| Speed Grade | 8 (Fastest) | 7 (Faster) | Different speed grades affect maximum operating frequency and timing closure, potentially requiring re-timing of the design. |
| Core Supply Voltage | 1.2 V | 1.2 V | Identical core voltage means the same power supply design and decoupling network can be reused. |
| Configuration Method | Instant-on / Dual configuration | Instant-on / Dual configuration | Same configuration features ensure identical boot behavior and support for fail-safe dual-image updates. |
| RoHS Compliance | RoHS Compliant | RoHS Compliant | Both meet environmental regulations, so no additional compliance qualification is needed for either part. |
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 | 10M40DAF256C8G | 10M40DCF256I7G |
|---|---|---|
| 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 | 0°C ~ 85°C (TJ) | -40°C ~ 100°C (TJ) |
Frequently asked questions
What are the key differences between the 10M40DAF256C8G and the 10M40DCF256I7G?
The primary differences are speed grade, operating temperature range, and package type. The 10M40DAF256C8G is a Commercial-grade device (0°C to 85°C junction temperature) with an 8 speed grade, while the 10M40DCF256I7G is an Industrial-grade device (-40°C to 100°C junction temperature) with a 7 speed grade. Both are Intel (Altera) MAX 10 FPGA devices with 40,000 logic elements in a 256-pin FineLine BGA (FBGA) package.
Are the 10M40DAF256C8G and 10M40DCF256I7G pin-to-pin compatible?
Yes. Both devices share the same 256-pin FineLine BGA (FBGA) package with identical pinouts as defined by the Intel MAX 10 device family. The package designation "F256" is common to both part numbers, meaning the physical footprint and pin assignments are the same.
Can the 10M40DAF256C8G be substituted with the 10M40DCF256I7G in an existing design?
Substitution is possible only after validating the differences. The 10M40DCF256I7G has a faster speed grade (7 vs. 8) and a wider industrial temperature range (-40°C to 100°C vs. 0°C to 85°C). The faster speed grade may affect timing closure, and the industrial temperature rating may require review of the power budget and thermal design. Both must be verified against the Intel MAX 10 datasheet and the target design requirements.
What is the logic density of the 10M40DAF256C8G and 10M40DCF256I7G?
Both devices feature 40,000 logic elements (LEs), which is denoted by the "40" in the part number (10M40). They also include the same embedded memory, DSP blocks, and analog-to-digital converter (ADC) blocks as defined by the Intel MAX 10 10M40 device specification.
What are the operating temperature ranges for these two devices?
The 10M40DAF256C8G is rated for commercial operation with a junction temperature range of 0°C to 85°C. The 10M40DCF256I7G is rated for industrial operation with a junction temperature range of -40°C to 100°C. These ratings are specified in the Intel MAX 10 device datasheet.
What does the speed grade difference (8 vs. 7) mean for these FPGAs?
In Intel FPGA nomenclature, a lower speed grade number indicates a faster device. Therefore, the 10M40DCF256I7G (speed grade 7) offers faster performance than the 10M40DAF256C8G (speed grade 8). This affects maximum operating frequency, propagation delays, and timing closure margins. Designers must consult the Intel MAX 10 datasheet for specific timing parameters.
Do both devices support the same configuration methods?
Yes. Both the 10M40DAF256C8G and 10M40DCF256I7G are Intel MAX 10 FPGAs and support the same configuration schemes, including internal configuration via on-chip flash, JTAG configuration, and external configuration from a host or configuration device. The available configuration options are defined by the MAX 10 device family specifications.
Are the 10M40DAF256C8G and 10M40DCF256I7G RoHS compliant?
Both devices are offered in RoHS-compliant packages as part of Intel's MAX 10 FPGA product line. However, specific RoHS and lead-free status should be confirmed using the device ordering information and Intel's product material declarations, as compliance can vary by ordering code and packaging option.