Part A
5CEFA5U19I7N
Intel
- Lifecycle
- Active
- Stock
- 1812 PCS
- Package
- UBGA-484
- Series
- Embedded - FPGAs (Field Programmable Gate Array)
Replacement verdict
Compatible functional replacement candidate
The 5CEFA5U19I7N and 5CEFA4U19I7 are both Intel Cyclone V FPGAs in the same UBGA-484 package and industrial temperature grade, sharing identical I/O, transceiver, and supply characteristics. The 5CEFA5U19I7N offers a larger logic fabric with approximately 77,000 LE versus 49,000 LE, so it is a functional superset of the 5CEFA4U19I7. Designers may substitute the 5CEFA5U19I7N for the 5CEFA4U19I7 provided the larger device's higher static power and cost are acceptable, while the reverse substitution is not feasible due to insufficient logic resources.
Package Type
High match
Logic Density
Validation required
I/O and Transceiver Count
High match
Operating Temperature
High match
Parts at a glance
Part B
5CEFA4U19I7
Intel
- Lifecycle
- Active
- Stock
- 4673 PCS
- Package
- FBGA-484
- 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 | 5CEFA5U19I7N | 5CEFA4U19I7 | Why it matters |
|---|---|---|---|
| Logic Elements (LE) | 77000 | 49000 | Higher logic element count allows more complex digital designs and additional functionality to be implemented in a single device. |
| Total RAM Bits | 4464640 | 3080192 | More embedded memory supports larger data buffers, deeper FIFOs, and more complex algorithms without external memory. |
| Number of LABs/CLBs | 29080 | 18480 | Logic array blocks determine the granularity of logic implementation and affect routability and resource utilization. |
| Number of I/O | 224 | 224 | I/O count determines how many external signals and peripherals can be interfaced simultaneously. |
| Number of PLLs | 6 | 4 | More PLLs enable additional independent clock domains and flexible clock synthesis for complex systems. |
| Number of DSP Blocks | 150 | 112 | DSP blocks accelerate multiplication and accumulation operations critical for signal processing applications. |
| Package / Case | 484-UBGA | 484-UBGA | Package compatibility ensures the same PCB footprint and assembly process can be used for both devices. |
| Operating Temperature | -40°C to 100°C (TJ) | -40°C to 100°C (TJ) | Industrial temperature range ensures reliable operation in harsh environments and embedded applications. |
| Supply Voltage | 1.07V to 1.13V | 1.07V to 1.13V | Core voltage compatibility determines power supply design and thermal management requirements. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 5CEFA5U19I7N | 5CEFA4U19I7 |
|---|---|---|
| Supplier | - | Intel |
| Series | Cyclone® V E | Cyclone® V E |
| Part Status | Active | Active |
| Number of LABs/CLBs | 29080 | 18480 |
| Number of Logic Elements/Cells | 77000 | 49000 |
| Total RAM Bits | 5001216 | 3464192 |
| Number of I/O | 224 | 224 |
| Voltage - Supply | 1.07V ~ 1.13V | 1.07V ~ 1.13V |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 100°C (TJ) | -40°C ~ 100°C (TJ) |
Frequently asked questions
What are the key differences between the 5CEFA5U19I7N and the 5CEFA4U19I7?
The 5CEFA5U19I7N and 5CEFA4U19I7 are both Intel (formerly Altera) Cyclone V FPGAs in the same 484-pin UBGA package (U19) with an industrial temperature grade (I7). The primary difference is logic density: the 5CEFA5U19I7N is a Cyclone V E A5 device with approximately 77,000 logic elements (LEs), while the 5CEFA4U19I7 is a Cyclone V E A4 device with approximately 49,000 LEs. This affects available adaptive logic modules (ALMs), embedded memory, and DSP resources.
Are the 5CEFA5U19I7N and 5CEFA4U19I7 pin-to-pin compatible?
Yes. Both devices are offered in the same 484-pin UBGA (U19) package and share the same pinout for the Cyclone V E family in that package. However, pin-to-pin compatibility does not guarantee functional equivalence; designers must verify that all I/O assignments, transceiver channels, and power pins meet the requirements of the specific device density.
Can the 5CEFA4U19I7 be used as a direct drop-in replacement for the 5CEFA5U19I7N?
No. Although the package and pinout are identical, the 5CEFA4U19I7 has fewer logic elements, lower embedded memory capacity, and fewer DSP blocks than the 5CEFA5U19I7N. A design that fully utilizes the A5 resources will not fit in the A4 device. A drop-in replacement is only possible if the design's resource utilization is within the A4 limits and all timing and I/O requirements are revalidated.
What is the difference in logic element count between the 5CEFA5U19I7N and 5CEFA4U19I7?
According to Intel Cyclone V device documentation, the 5CEFA5U19I7N (Cyclone V E A5) contains 77,000 logic elements (LEs), while the 5CEFA4U19I7 (Cyclone V E A4) contains 49,000 LEs. This represents a difference of 28,000 LEs, which directly impacts the available adaptive logic modules (ALMs) and overall logic capacity.
Do the 5CEFA5U19I7N and 5CEFA4U19I7 have the same embedded memory and DSP resources?
No. The 5CEFA5U19I7N offers 4,880 Kbits of embedded memory and 150 variable-precision DSP blocks, whereas the 5CEFA4U19I7 provides 3,080 Kbits of embedded memory and 112 DSP blocks. These differences must be considered when migrating a design from one device to the other.
What does the "I7" suffix indicate on both the 5CEFA5U19I7N and 5CEFA4U19I7?
The "I7" suffix indicates an industrial temperature grade with a speed grade of 7. Both devices are specified for operation over the industrial temperature range of -40°C to +100°C junction temperature (TJ), and speed grade 7 represents a specific performance bin within the Cyclone V family.
What does the "N" suffix on the 5CEFA5U19I7N indicate compared to the 5CEFA4U19I7?
The "N" suffix on the 5CEFA5U19I7N indicates that the device is lead-free (Pb-free) and RoHS-compliant. The 5CEFA4U19I7 without the "N" suffix may be supplied in a leaded or non-RoHS configuration depending on the manufacturer's ordering code. Designers should confirm the exact ordering part number and environmental compliance requirements for their application.
Are the 5CEFA5U19I7N and 5CEFA4U19I7 supported by the same Intel Quartus Prime software versions?
Yes. Both devices belong to the Intel Cyclone V E family and are supported by Intel Quartus Prime software. However, the specific device support list varies by Quartus Prime edition and version. Designers should verify that their chosen Quartus Prime version includes device support for both the A5 and A4 densities in the 484-pin UBGA package.