Part A
5CEFA2F23C8N
訊息
- Lifecycle
- Active
- Stock
- 2565 件
- Package
- FBGA-484
- Series
- 嵌入式FPGA（現場可程式設計閘陣列）
Replacement verdict
Compatible functional replacement candidate
The 5CEFA2F23C7N is a functionally compatible alternative to the 5CEFA2F23C8N, sharing identical logic density, package, and I/O configuration, with the only distinction being a faster speed grade that generally exceeds the original timing requirements. Designers should validate timing closure and power budget when substituting the faster grade.
Logic Density
High match
Package Type
High match
I/O Count
High match
Speed Grade
Validation required
Parts at a glance
Part B
5CEFA2F23C7N
阿爾特拉
- Lifecycle
- Active
- Stock
- 9580 件
- 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 | 5CEFA2F23C8N | 5CEFA2F23C7N | Why it matters |
|---|---|---|---|
| Speed Grade | 8 | 7 | The speed grade determines the maximum operating frequency and timing closure margin; a grade 8 device is faster than a grade 7, so they are not directly interchangeable in timing-critical designs. |
| Family | Cyclone V E | Cyclone V E | Both parts belong to the same FPGA family, ensuring identical architecture, IP compatibility, and tool support. |
| Logic Elements (LE) | 25,000 | 25,000 | Matching logic capacity means both devices can implement the same logic designs without resource overflow. |
| Package | FBGA-484 | FBGA-484 | Identical package and pinout allow the same PCB footprint and board design to be reused. |
| Operating Temperature Range | 0°C to 85°C (Commercial) | 0°C to 85°C (Commercial) | Same temperature range ensures both parts are suitable for the same environmental conditions. |
| Supply Voltage (Core) | 1.1 V | 1.1 V | Identical core voltage means the same power supply design and decoupling can be used. |
| Embedded Memory | 1,220 Kbit | 1,220 Kbit | Equal embedded memory capacity supports the same on-chip buffering and storage requirements. |
| Number of I/O Pins | 224 | 224 | Same I/O count ensures both devices can interface with the same number of external peripherals. |
| Transceiver Support | Not available | Not available | Neither device includes high-speed transceivers, so both are limited to general-purpose I/O applications. |
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 | 5CEFA2F23C8N | 5CEFA2F23C7N |
|---|---|---|
| Series | Cyclone® V E | Cyclone® V E |
| Part Status | Active | Active |
| Digi Key Programmable | - | Not Verified |
| Total RAM Bits | 2002944 | 2002944 |
| Number of I/O | 224 | 224 |
| Voltage - Supply | 1.07V ~ 1.13V | 1.07V ~ 1.13V |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | 0°C ~ 85°C (TJ) | 0°C ~ 85°C (TJ) |
| Base Product Number | - | 5CEFA2 |
| Number of Logic Elements / Cells | - | 25000 |
| Number of LA Bs / CL Bs | - | 9434 |
| Number of LABs/CLBs | 9434 | - |
| Number of Logic Elements/Cells | 25000 | - |
Frequently asked questions
What is the difference between the 5CEFA2F23C8N and 5CEFA2F23C7N?
The primary difference is the speed grade. The 5CEFA2F23C8N is specified with a speed grade of 8, while the 5CEFA2F23C7N is specified with a speed grade of 7. Both devices are otherwise identical in their family, logic density, package, and operating temperature range.
Are the 5CEFA2F23C8N and 5CEFA2F23C7N pin-to-pin compatible?
Yes. Both devices are offered in the same 484-pin FineLine BGA (FBGA) package with the same pinout. They are pin-to-pin compatible, allowing the same PCB footprint to be used for either speed grade.
Can the 5CEFA2F23C8N be used as a direct drop-in replacement for the 5CEFA2F23C7N?
In terms of package and pinout, yes. However, because the speed grades differ, a direct drop-in replacement is only valid if the target design does not rely on timing margins that are exclusive to the faster speed grade. The 5CEFA2F23C8N is the faster of the two and may meet timing where the 5CEFA2F23C7N does not, but the reverse is not guaranteed.
What is the operating temperature range for both the 5CEFA2F23C8N and 5CEFA2F23C7N?
Both devices are specified for the commercial temperature range of 0°C to 85°C junction temperature (TJ), as indicated by the "C" in the part number suffix.
Do the 5CEFA2F23C8N and 5CEFA2F23C7N have the same logic density and resources?
Yes. Both are Cyclone V E family devices with 25,000 logic elements (LEs), identical embedded memory blocks, and the same number of DSP blocks and PLLs. The only difference is the speed grade.
Which speed grade is faster: 5CEFA2F23C8N or 5CEFA2F23C7N?
The 5CEFA2F23C8N is faster. In Intel (Altera) speed grade nomenclature for Cyclone V devices, a higher number indicates a faster speed grade. Therefore, speed grade 8 is faster than speed grade 7.
Are the 5CEFA2F23C8N and 5CEFA2F23C7N RoHS compliant?
Yes. Both devices are RoHS compliant and lead-free, as indicated by the "N" suffix in the part number, which denotes lead-free packaging.