Part A
10M40DCF256I7G
Intel
- Lifecycle
- Active
- Stock
- 4120 Stückzahl
- Package
- LBGA-256
- Series
- Embedded feFPGAs (Field Programmable Gate Array)
Replacement verdict
Compatible functional replacement candidate
The 10M40DCF256I7G and 10M40DCF256C7G are functionally equivalent Intel MAX 10 FPGA devices sharing identical logic density, package, and I/O configuration; the primary distinction is the industrial versus commercial temperature grade, making the C7G a viable substitute for the I7G only in operating environments that remain within the commercial temperature range.
Logic Density
High match
Package Type
High match
I/O Count
High match
Operating Temperature
Validation required
Parts at a glance
Part B
10M40DCF256C7G
Intel
- Lifecycle
- Active
- Stock
- 8682 Stückzahl
- Package
- LBGA-256
- Series
- Embedded feFPGAs (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 | 10M40DCF256I7G | 10M40DCF256C7G | Why it matters |
|---|---|---|---|
| Operating Temperature Range | -40°C to +100°C (Industrial) | 0°C to +85°C (Commercial) | Determines the environmental conditions in which the device can reliably operate; industrial-grade parts support harsher environments than commercial-grade parts. |
| Logic Elements (LEs) | 40,000 | 40,000 | Defines the programmable logic capacity available for implementing custom digital functions; matching LE counts indicate equivalent logic density. |
| Package / Pin Count | 256-pin FBGA | 256-pin FBGA | Physical footprint and pinout must match for a drop-in replacement on an existing PCB design. |
| Supply Voltage | 1.2 V core (typical) | 1.2 V core (typical) | Core voltage must be compatible with the board power design; identical values allow the same power delivery network to be used. |
| Embedded Memory | Up to 1,161 Kbits M9K | Up to 1,161 Kbits M9K | On-chip memory capacity affects the ability to store data, buffers, and lookup tables without external memory. |
| Multipliers (18x18) | 126 | 126 | Embedded multipliers determine DSP throughput for arithmetic-intensive applications such as filtering and signal processing. |
| Speed Grade | 7 (faster) | 7 (faster) | Speed grade affects maximum operating frequency and timing closure; both share grade 7, but temperature grade differs, influencing timing over temperature. |
| Temperature Grade Suffix | I (Industrial) | C (Commercial) | The suffix indicates the qualified temperature range; substituting a commercial part for an industrial one may cause failures in extended-temperature environments. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 10M40DCF256I7G | 10M40DCF256C7G |
|---|---|---|
| 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) | 0°C ~ 85°C (TJ) |
Frequently asked questions
What is the difference between the 10M40DCF256I7G and the 10M40DCF256C7G?
The primary difference is the operating temperature grade. The 10M40DCF256I7G is specified for the industrial temperature range (typically -40°C to +100°C junction temperature), while the 10M40DCF256C7G is specified for the commercial temperature range (typically 0°C to +85°C junction temperature). Both devices are otherwise identical in logic density, package, and speed grade.
Are the 10M40DCF256I7G and 10M40DCF256C7G pin-to-pin compatible?
Yes. Both devices share the same 256-ball FineLine BGA (FBGA) package and identical pinout. The only difference is the temperature grade marking and associated operating conditions, so they are physically interchangeable on a PCB.
Can the 10M40DCF256C7G be used as a drop-in replacement for the 10M40DCF256I7G?
Only if the application's operating temperature range does not exceed the commercial grade limits (0°C to +85°C junction temperature). If the system requires industrial temperature operation, the C-grade device is not a valid substitute and the I-grade version must be used.
What is the logic density and package of these devices?
Both the 10M40DCF256I7G and 10M40DCF256C7G are Intel (formerly Altera) MAX 10 field-programmable gate arrays (FPGAs) with 40,000 logic elements (LEs) and a 256-ball FineLine BGA package. The "7" suffix indicates speed grade 7.
Do these devices include non-volatile configuration memory?
Yes. Both are MAX 10 devices featuring integrated flash configuration memory, allowing single-chip operation without an external configuration device. This is a defining characteristic of the MAX 10 family.
What are the typical applications for the industrial versus commercial versions?
The 10M40DCF256I7G is intended for industrial, automotive, and outdoor applications where ambient temperatures can drop below 0°C or exceed +85°C. The 10M40DCF256C7G is intended for commercial and consumer applications operating within controlled environments, such as office equipment and indoor consumer electronics.
Are the timing specifications identical between the two temperature grades?
No. Timing parameters such as propagation delays and maximum operating frequency can differ between industrial and commercial grades because they are characterized at different temperature ranges. Designers must consult the respective device datasheet for the exact timing numbers applicable to each grade.
Which device should be selected for a design that must operate below 0°C?
The 10M40DCF256I7G must be selected. The commercial-grade 10M40DCF256C7G is not guaranteed to function below 0°C junction temperature, and using it outside its specified range may result in unreliable operation or device damage.