Part A
5CEFA2F23C8N
Informations
- Lifecycle
- Active
- Stock
- 2565 PCS
- Package
- FBGA-484
- Series
- FPGA embarqué (Field Programmable Gate Array)
Replacement verdict
Compatible functional replacement candidate
The 5CEFA2F23C8N and 5CEFA2U19C6N are both Intel Cyclone V FPGAs sharing the same logic density, transceiver count, and I/O capability, making them functionally interchangeable at the silicon level. However, they differ in package type and speed grade, which directly impacts PCB footprint and timing performance. The 5CEFA2F23C8N offers a faster C8 speed grade in a larger FBGA-484 package, while the 5CEFA2U19C6N uses a slower C6 speed grade in a compact UBGA-484 package. Designers must validate board layout compatibility and timing closure before substituting one for the other.
Logic Density
High match
Transceiver Count
High match
Package Type
Validation required
Speed Grade
Validation required
Parts at a glance
Part B
5CEFA2U19C6N
Informations
- Lifecycle
- Active
- Stock
- 9429 PCS
- Package
- FBGA-484
- Series
- FPGA embarqué (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 | 5CEFA2F23C8N | 5CEFA2U19C6N | Why it matters |
|---|---|---|---|
| Package / Case | FBGA-484 | UBGA-484 | The physical package and ball pitch determine PCB footprint, routing density, and whether the two devices are drop-in compatible on an existing board. |
| Operating Temperature Range | 0°C to +85°C (Commercial) | 0°C to +85°C (Commercial) | The temperature grade defines the environments in which the device can reliably operate and affects long-term reliability in industrial or commercial designs. |
| Speed Grade | 8 (Fastest) | 6 (Slower) | Speed grade determines maximum achievable clock frequency and timing closure; a slower grade may not meet the timing requirements of a design targeting the faster device. |
| Logic Elements (LE) | 25,000 | 25,000 | Logic element count defines the available programmable fabric and directly limits the complexity of logic that can be implemented. |
| Total RAM Bits | 1,843,200 | 1,843,200 | Embedded memory capacity constrains on-chip buffering, FIFO depth, and data storage for DSP and processing pipelines. |
| Number of I/O Pins | 224 | 224 | Available user I/O determines how many external interfaces and peripherals can be connected without adding external logic. |
| Number of LABs / CLBs | 9,434 | 9,434 | Logic array blocks define the granularity of the programmable fabric and influence placement, routing, and achievable utilization. |
| Supply Voltage - Core | 1.1 V | 1.1 V | Core voltage must match the board power design; a mismatch would require regulator changes and could damage the device. |
| Mounting Type | Surface Mount | Surface Mount | Mounting style determines assembly process compatibility and whether the part can be used in standard SMT production lines. |
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 | 5CEFA2U19C6N |
|---|---|---|
| Supplier | - | Intel |
| Series | Cyclone® V E | Cyclone® V E |
| Part Status | Active | Active |
| Number of LABs/CLBs | 9434 | 9434 |
| Number of Logic Elements/Cells | 25000 | 25000 |
| 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) |
Frequently asked questions
What are the key differences between the 5CEFA2F23C8N and the 5CEFA2U19C6N?
The 5CEFA2F23C8N and 5CEFA2U19C6N are both Intel (formerly Altera) Cyclone V FPGAs from the same 5CEFA2 device family, but they differ in package, pin count, and speed grade. The 5CEFA2F23C8N uses a 484-pin FBGA package (F23) with a speed grade of 8, while the 5CEFA2U19C6N uses a 484-pin UBGA package (U19) with a speed grade of 6. The different package codes indicate different physical footprints and ball maps, and the different speed grades indicate different timing performance characteristics.
Are the 5CEFA2F23C8N and 5CEFA2U19C6N pin-to-pin compatible?
No. Although both devices are offered in 484-pin packages, the 5CEFA2F23C8N uses the F23 FBGA package while the 5CEFA2U19C6N uses the U19 UBGA package. These are distinct package types with different ball maps and PCB land patterns, so they are not pin-to-pin compatible and cannot be interchanged on the same PCB without a redesign.
Do the 5CEFA2F23C8N and 5CEFA2U19C6N have the same logic density and resources?
Yes. Both devices belong to the Cyclone V 5CEFA2 density grade, which provides the same core logic, memory, and DSP resource counts within the family. The primary differences between the two part numbers are the package type and the speed grade, not the FPGA fabric density.
What does the speed grade difference between C8 and C6 mean for the 5CEFA2F23C8N and 5CEFA2U19C6N?
The 5CEFA2F23C8N has a speed grade of 8, and the 5CEFA2U19C6N has a speed grade of 6. In Intel FPGA nomenclature, a lower speed grade number indicates a faster device with shorter propagation delays and higher maximum operating frequencies. Therefore, the 5CEFA2U19C6N (grade 6) offers faster timing performance than the 5CEFA2F23C8N (grade 8), assuming equivalent operating conditions.
Can the 5CEFA2F23C8N be used as a direct drop-in replacement for the 5CEFA2U19C6N?
No. Because the two devices use different package types (F23 FBGA versus U19 UBGA) and different speed grades (8 versus 6), a direct drop-in replacement is not possible. Any substitution requires a full review of package footprint, pin assignment, thermal characteristics, and timing closure against the manufacturer datasheet and the target design requirements.
Are the 5CEFA2F23C8N and 5CEFA2U19C6N RoHS compliant?
Intel Cyclone V devices, including the 5CEFA2F23C8N and 5CEFA2U19C6N, are generally offered as RoHS-compliant products. However, compliance status can vary by ordering code and date code. Designers should verify the specific RoHS and lead-free status for each part number directly from the Intel manufacturer datasheet or an authorized distributor such as DigiKey or Mouser before finalizing a design.
Which applications typically use the 5CEFA2F23C8N versus the 5CEFA2U19C6N?
Both devices target general-purpose FPGA applications such as industrial control, communications, automotive, and embedded processing. The 5CEFA2U19C6N, with its faster speed grade 6, is better suited to designs requiring higher timing margins or higher clock frequencies. The 5CEFA2F23C8N, with speed grade 8, is typically used in cost-sensitive or lower-frequency designs where the FBGA package and slower speed grade are acceptable.
Where can verified technical data for the 5CEFA2F23C8N and 5CEFA2U19C6N be found?
Verified technical data for both devices can be obtained from the official Intel (Altera) Cyclone V device datasheet, the Cyclone V pin-out files, and authorized distributor listings such as DigiKey, Mouser, TTI, and Future Electronics. These sources provide package specifications, speed grade definitions, ordering codes, and environmental compliance information.