Part A
10M40DCF256A7G
Intel
- Lifecycle
- Active
- Stock
- 5210 PCS
- Package
- LBGA-256
- Series
- Embedded - FPGAs (Field Programmable Gate Array)
Replacement verdict
Compatible functional replacement candidate
The 10M40DCF256A7G and 10M40DAF256I6G are functionally compatible as both are Intel MAX 10 FPGA devices with identical logic density, package, and pin count, but they differ in speed grade and operating temperature range, so the 10M40DAF256I6G is a viable replacement only when the target application accepts the faster speed grade and the extended industrial temperature range.
Logic Density and Family
High match
Package Type and Pin Count
High match
Speed Grade
Validation required
Operating Temperature Range
Validation required
Parts at a glance
Part B
10M40DAF256I6G
Intel
- Lifecycle
- Active
- Stock
- 4333 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 | 10M40DCF256A7G | 10M40DAF256I6G | Why it matters |
|---|---|---|---|
| Family / Series | MAX 10 | MAX 10 | Same device family ensures similar architecture, toolchain support, and IP compatibility for drop-in evaluation. |
| Logic Elements (LEs) | 40,000 | 40,000 | Matching logic density means equivalent capacity for implementing the same design without resource overflow. |
| Package / Pin Count | 256-pin FBGA | 256-pin FBGA | Identical package and pin count allow the same PCB footprint and pinout, enabling direct board-level substitution. |
| Operating Temperature Range | 0°C to +85°C (Commercial) | -40°C to +100°C (Industrial) | Different temperature grades affect suitability for harsh or industrial environments versus standard commercial applications. |
| Speed Grade | 7 (Fastest) | 6 (Fast) | Speed grade impacts maximum operating frequency and timing closure; a slower grade may not meet the same performance targets. |
| Embedded Memory (M9K blocks) | 1,260 Kbits | 1,260 Kbits | Equal embedded memory capacity supports the same buffering, FIFO, and data storage requirements. |
| User Flash Memory (UFM) | Yes | Yes | On-chip user flash enables non-volatile storage for configuration or calibration data without external memory. |
| Supply Voltage (Core) | 1.2 V | 1.2 V | Same core voltage ensures identical power supply design and decoupling requirements. |
| Configuration Method | Instant-on / Single-event upset immune | Instant-on / Single-event upset immune | Instant-on configuration provides deterministic startup, critical for real-time and safety-sensitive systems. |
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 | 10M40DCF256A7G | 10M40DAF256I6G |
|---|---|---|
| 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 ~ 125°C (TJ) | -40°C ~ 100°C (TJ) |
Frequently asked questions
What are the key differences between the 10M40DCF256A7G and the 10M40DAF256I6G?
The primary differences are operating temperature range, speed grade, and package thermal characteristics. The 10M40DCF256A7G is specified for commercial temperature range (0°C to 85°C junction) with a speed grade of 7, while the 10M40DAF256I6G is specified for industrial temperature range (-40°C to 100°C junction) with a speed grade of 6. Both devices are Intel (Altera) MAX 10 FPGA family members with 40,000 logic elements in a 256-ball FineLine BGA (FBGA) package.
Are the 10M40DCF256A7G and 10M40DAF256I6G pin-compatible?
Yes. Both devices share the same 256-ball FineLine BGA (FBGA) package with identical pinouts as defined by the Intel MAX 10 device pin-out specifications. However, pin-compatibility does not guarantee functional equivalence; the speed grade and temperature grade differences must be validated for the target application.
Can the 10M40DCF256A7G be substituted with the 10M40DAF256I6G in an existing design?
Substitution is possible only after validating timing closure, power consumption, and thermal performance. The 10M40DAF256I6G has a slower speed grade (6 vs. 7) and a wider industrial temperature range, which may affect maximum operating frequency and static/dynamic power characteristics. Intel Quartus Prime timing analysis must be re-run to confirm the design meets timing with the slower speed grade.
What is the logic density and memory capacity of these devices?
Both the 10M40DCF256A7G and 10M40DAF256I6G feature 40,000 logic elements (LEs), 1,260 Kbits of M9K embedded memory, and 288 18x18 multiplier blocks, as specified in the Intel MAX 10 device datasheet. These parameters are identical across both ordering codes.
Do both devices support internal configuration (configuration flash) and instant-on operation?
Yes. Both devices are MAX 10 FPGAs with integrated configuration flash memory, supporting single-chip, instant-on operation without the need for an external configuration device. This is a family-level feature of all MAX 10 devices, including the 10M40DCF256A7G and 10M40DAF256I6G.
What are the operating temperature ranges for each device?
The 10M40DCF256A7G is rated for commercial temperature range: 0°C to 85°C junction temperature (TJ). The 10M40DAF256I6G is rated for industrial temperature range: -40°C to 100°C junction temperature (TJ). These ratings are specified in the Intel MAX 10 device datasheet and ordering information.
Which device is better suited for industrial or automotive applications?
The 10M40DAF256I6G is better suited for industrial applications due to its industrial temperature range of -40°C to 100°C TJ. The 10M40DCF256A7G, with its commercial temperature range of 0°C to 85°C TJ, is intended for commercial-grade environments. Neither device is automotive-qualified unless a specific automotive-grade ordering code is selected.
What speed grade does each device use, and how does it affect performance?
The 10M40DCF256A7G uses speed grade 7, while the 10M40DAF256I6G uses speed grade 6. In Intel FPGA nomenclature, a lower speed grade number indicates faster performance. Therefore, the 10M40DCF256A7G (speed grade 7) is faster than the 10M40DAF256I6G (speed grade 6). This affects maximum clock frequencies, setup/hold times, and overall timing closure.
Are these devices RoHS compliant and lead-free?
Yes. Both the 10M40DCF256A7G and 10M40DAF256I6G are offered in RoHS-compliant, lead-free packages as standard Intel MAX 10 ordering options. The "G" suffix in both ordering codes indicates RoHS compliance and lead-free construction, per Intel ordering information.