Part A
10M40DCF256A7G
訊息
- Lifecycle
- Active
- Stock
- 5210 件
- Package
- LBGA-256
- Series
- 嵌入式FPGA（現場可程式設計閘陣列）
Replacement verdict
Compatible functional replacement candidate
The 10M40DCF256A7G and 10M40DCF256I7G are functionally equivalent MAX 10 FPGA devices sharing identical logic density, package, and I/O configuration; the only material distinction is the operating temperature grade, making the industrial-grade variant a viable substitute for the automotive-grade part provided the target application's thermal profile is validated.
Operating Temperature Grade
Validation required
Logic Density
High match
Package Type
High match
Supply Voltage
High match
Parts at a glance
Part B
10M40DCF256I7G
訊息
- Lifecycle
- Active
- Stock
- 4120 件
- Package
- LBGA-256
- Series
- 嵌入式FPGA（現場可程式設計閘陣列）
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 | 10M40DCF256I7G | Why it matters |
|---|---|---|---|
| Operating Temperature Range | 0°C to +85°C (Commercial) | -40°C to +100°C (Industrial) | Determines the environments in which the device can reliably operate; industrial-grade parts are required for harsh or wide-temperature applications. |
| Logic Family / Series | MAX 10 | MAX 10 | Identifies the FPGA family, ensuring architectural and toolchain compatibility between the two parts. |
| Logic Elements (LEs) | 40000 | 40000 | Defines the available programmable logic capacity, directly affecting the complexity of designs that can be implemented. |
| Package / Case | 256-FBGA | 256-FBGA | Must match for physical board compatibility and footprint; identical packages allow drop-in replacement. |
| Mounting Type | Surface Mount | Surface Mount | Determines the assembly process and PCB land pattern required for the device. |
| Supply Voltage | 1.15V to 1.25V (Core) | 1.15V to 1.25V (Core) | Core voltage must be compatible with the board power design; identical values ensure electrical interchangeability. |
| Number of I/Os | 178 | 178 | I/O count determines how many external signals the FPGA can interface with, affecting system connectivity. |
| Embedded Memory | 1260 kbit | 1260 kbit | On-chip memory capacity affects the ability to store data, buffers, or configuration within the FPGA. |
| Speed Grade | 7 | 7 | Speed grade indicates timing performance; matching grades ensures identical maximum operating frequencies. |
| RoHS / Environmental Status | RoHS Compliant | RoHS Compliant | Environmental compliance affects regulatory acceptance and disposal requirements in different markets. |
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 | 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 | -40°C ~ 125°C (TJ) | -40°C ~ 100°C (TJ) |
Frequently asked questions
What is the difference between the 10M40DCF256A7G and the 10M40DCF256I7G?
The primary difference is the operating temperature grade. The 10M40DCF256A7G is specified for commercial temperature operation, while the 10M40DCF256I7G is specified for industrial temperature operation. Both devices are Intel (Altera) MAX 10 field-programmable gate arrays in the same 256-ball FineLine BGA package with the same logic density and speed grade.
Are the 10M40DCF256A7G and 10M40DCF256I7G functionally identical?
Yes. Both devices are MAX 10 FPGAs with 40,000 logic elements, the same embedded memory, DSP blocks, analog-to-digital converter blocks, and configuration flash. The functional architecture is identical; the difference is the qualified temperature range.
What temperature ranges do the A7G and I7G suffixes indicate?
The "A7" suffix in 10M40DCF256A7G denotes the commercial temperature grade, and the "I7" suffix in 10M40DCF256I7G denotes the industrial temperature grade. The "7" in both part numbers indicates the speed grade. Designers should confirm the exact junction and ambient temperature limits in the Intel MAX 10 device datasheet before selecting a grade.
Can the 10M40DCF256A7G be used as a drop-in replacement for the 10M40DCF256I7G?
No, not unconditionally. Although both devices share the same 256-ball FineLine BGA package and pinout, the 10M40DCF256A7G is rated for a narrower temperature range than the 10M40DCF256I7G. A drop-in replacement is only acceptable if the target application remains within the commercial temperature limits of the A7G device and all other specifications are verified against the datasheet.
Do the 10M40DCF256A7G and 10M40DCF256I7G use the same package and pinout?
Yes. Both part numbers use the 256-ball FineLine BGA (FBGA) package with the same pinout. The "F256" designator in both part numbers indicates the identical package type and ball count, so PCB footprint and pin assignments are the same.
Which device should be selected for an industrial-temperature application?
The 10M40DCF256I7G should be selected for industrial-temperature applications because its "I" suffix indicates the industrial temperature grade. The 10M40DCF256A7G, with its "A" suffix, is intended for commercial temperature environments and should not be used outside its rated range.
Are the 10M40DCF256A7G and 10M40DCF256I7G available in the same speed grade?
Yes. Both part numbers include the "7" speed grade designator, indicating the same speed grade for the MAX 10 FPGA fabric. Timing performance for the FPGA core logic is therefore equivalent between the two devices when operated within their respective rated temperature ranges.