Part A
10CL040YU484C8G
アルテラ
- Lifecycle
- Active
- Stock
- 1877 個数
- Series
- 組み込み - FPGA（フィールド・プログラマブル・ゲート・アレイ）
Replacement verdict
Compatible functional replacement candidate
The 10CL055YU484C8G is a viable functional replacement candidate for the 10CL040YU484C8G, sharing an identical package, pinout, supply voltage, and operating temperature range. The primary distinction is the higher logic density of the 10CL055YU484C8G, which provides additional resources without requiring board redesign. Designers should verify that timing closure and power budgets remain within specification when migrating to the larger device.
Package Type
High match
Supply Voltage
High match
Operating Temperature
High match
Logic Density
Validation required
Parts at a glance
Part B
10CL055YU484C8G
インテル
- Lifecycle
- Active
- Stock
- 8128 個数
- Package
- BGA-484
- Series
- 組み込み - FPGA（フィールド・プログラマブル・ゲート・アレイ）
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | 10CL040YU484C8G | 10CL055YU484C8G | Why it matters |
|---|---|---|---|
| Logic Elements (LEs) | 40,000 | 55,000 | Logic capacity determines how much custom digital logic can be implemented; a higher LE count allows more complex designs but changes resource utilization and timing closure. |
| Embedded Memory (M9K blocks) | 126 | 260 | On-chip memory blocks affect the ability to store data, buffers, and look-up tables; differing counts impact memory-intensive designs and may require external memory if insufficient. |
| Total RAM (Kbits) | 1,134 | 2,340 | Total embedded RAM capacity influences data buffering and storage within the FPGA; a mismatch can limit functionality or require design changes. |
| Embedded 18x18 Multipliers | 126 | 156 | Hardware multipliers are critical for DSP and arithmetic operations; fewer multipliers may reduce performance or increase logic usage for math-intensive applications. |
| Maximum User I/O Pins | 325 | 325 | I/O pin count determines how many external signals can be interfaced; identical counts mean both devices can connect to the same number of peripherals. |
| Package | 484-pin UBGA | 484-pin UBGA | Package type and pin count must match for physical board compatibility; identical packages allow drop-in replacement without PCB redesign. |
| Operating Temperature Range | 0°C to 85°C (Commercial) | 0°C to 85°C (Commercial) | Temperature grade affects reliability in different environments; matching ranges ensures both parts are suitable for the same operating conditions. |
| Supply Voltage (Core) | 1.2 V | 1.2 V | Core voltage must be compatible with the board power supply; identical values mean no power delivery changes are needed. |
| Speed Grade | 8 | 8 | Speed grade indicates maximum operating frequency and timing performance; matching grades ensures similar performance characteristics. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 10CL040YU484C8G | 10CL055YU484C8G |
|---|---|---|
| Supplier | - | Intel |
| Series | Cyclone® 10 LP | Cyclone® 10 LP |
| Part Status | Active | Active |
| Number of LABs/CLBs | - | 3491 |
| Number of Logic Elements/Cells | - | 55856 |
| Total RAM Bits | 1161216 | 2396160 |
| Number of I/O | 325 | 321 |
| Voltage - Supply | 1.2V | 1.2V |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | 0°C ~ 85°C (TJ) | 0°C ~ 85°C (TJ) |
| Digi Key Programmable | Not Verified | - |
| Number of LA Bs / CL Bs | 2475 | - |
| Number of Logic Elements / Cells | 39600 | - |
| Packaging | Tray | - |
Frequently asked questions
What are the key differences between the 10CL040YU484C8G and the 10CL055YU484C8G?
The primary difference is logic density. The 10CL040YU484C8G is a Cyclone 10 LP FPGA with 40,000 logic elements (LEs), while the 10CL055YU484C8G offers 55,000 LEs. Both devices are offered in the same 484-pin Ultra FineLine BGA (UBGA) package, share the same speed grade (8), and operate over the commercial temperature range (0°C to 85°C junction).
Are the 10CL040YU484C8G and 10CL055YU484C8G pin-compatible?
Yes. Both devices are specified in the same 484-pin UBGA package (package code U484) with identical pinouts as defined by Intel (formerly Altera) Cyclone 10 LP device pin-out files. This allows a single PCB design to accommodate either density, provided power, configuration, and I/O assignments are validated for the target device.
Can the 10CL040YU484C8G be used as a drop-in replacement for the 10CL055YU484C8G?
Not unconditionally. Although the package and pinout are the same, the 10CL055YU484C8G provides additional logic, memory, and possibly more I/O resources. A design compiled for the 10CL055YU484C8G may exceed the resources of the 10CL040YU484C8G. The design must be recompiled and timing-verified for the smaller device before substitution.
Do both devices support the same configuration schemes?
Yes. Both the 10CL040YU484C8G and 10CL055YU484C8G support the same Cyclone 10 LP configuration schemes, including active serial (AS), passive serial (PS), JTAG, and active parallel (AP) modes, as documented in the Intel Cyclone 10 LP Device Handbook. Configuration voltage and flash requirements are identical across the family.
What is the core supply voltage for these devices?
Both the 10CL040YU484C8G and 10CL055YU484C8G require a 1.2 V core supply (VCCINT) and support I/O voltages of 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V, depending on the I/O bank configuration. These parameters are specified in the Intel Cyclone 10 LP datasheet.
Are the embedded memory and multiplier resources different between the two devices?
Yes. The 10CL055YU484C8G includes more embedded memory blocks and embedded multipliers (18x18) than the 10CL040YU484C8G, consistent with its higher logic density. Exact quantities are listed in the Intel Cyclone 10 LP Device Overview. Designs relying on these resources must be checked against the smaller device if substitution is considered.
Which device is better suited for a design that may need future logic expansion?
The 10CL055YU484C8G is generally preferable when additional logic, memory, or multiplier resources may be required, because it provides higher capacity in the same package and pinout. This allows a PCB designed for the 10CL055YU484C8G to potentially accept the 10CL040YU484C8G for cost reduction if the design fits, while the reverse migration is limited by the smaller device's resources.