A42MX24-1PLG84 - 36K Gate 5V FPGA | Microchip | 84-PLCC
MPN: A42MX24-1PLG84 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $45.2 | $45.20 |
| 10 | $41.8 | $418.00 |
| 100 | $37.5 | $3,750.00 |
| 500 | $33.9 | $16,950.00 |
| 1,000 | $30.4 | $30,400.00 |
Drop-in alternatives for A42MX24-1PLG84 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
A42MX24-1PLG84I
β Drop-Inβ In Stock
$45.2 / Unit
View Datasheet βA42MX24-PLG84M
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$1142.38 / Unit
View Datasheet βA42MX24-2PLG84I
β Drop-Inβ In Stock
$55.4 / Unit
View Datasheet βA42MX24-3PLG84I
β Drop-Inβ In Stock
$43.5 / Unit
View Datasheet βA42MX24-3PLG84
β Drop-Inβ In Stock
$44.2 / Unit
View Datasheet βA42MX24-1PLG84 Maximum Ratings & Electrical Characteristics
| Family | MX |
| System Gates | 36000 |
| Logic Cells / Logic Blocks | 912 |
| Number of I/O | 72 |
| Package Type | 84-PLCC (J-Lead) |
| Logic Family | CMOS |
| Operating Temperature | -40Β°C to +85Β°C |
| Supply Voltage (3.3V) | 3.0V to 3.6V |
| Supply Voltage (5V) | 4.75V to 5.25V |
| Process Technology | 0.45um |
| Configurable Dual-Port SRAM | 2.5 kbits |
| Wide-Decode Circuitry | Yes |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Speed Grade | -1 |
A42MX24-1PLG84 Pin Configuration
| Pin 1 | I/O β User programmable I/O pin |
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| Pin 70 | I/O β User programmable I/O pin |
| Pin 71 | I/O β User programmable I/O pin |
| Pin 72 | I/O β User programmable I/O pin |
| Pin 73 | VCC β Power supply (3.3V or 5V) |
| Pin 74 | GND β Ground |
| Pin 75 | VCC β Power supply (3.3V or 5V) |
| Pin 76 | GND β Ground |
| Pin 77 | TDI β JTAG test data in |
| Pin 78 | TDO β JTAG test data out |
| Pin 79 | TMS β JTAG test mode select |
| Pin 80 | TCK β JTAG test clock |
| Pin 81 | NC β Not connected |
| Pin 82 | NC β Not connected |
| Pin 83 | NC β Not connected |
| Pin 84 | NC β Not connected |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
A42MX24-1PLG84 is suitable for 6 applications: Industrial Control Systems, Automotive Electronics, Communication Interfaces, Legacy PLD Consolidation, Test and Measurement Equipment, Aerospace and Defense.
Industrial Control Systems
The A42MX24-1PLG84 is well-suited for industrial control systems due to its 5V compatibility, 72 I/O pins, and wide operating temperature range of -40Β°C to +85Β°C. Its 36,000 system gates and 912 logic cells provide ample resources for implementing motor control logic, PLC interfaces, and sensor conditioning. The wide-decode circuitry accelerates control logic, reducing propagation delays in time-critical applications. The dual-port SRAM enables efficient data buffering between different clock domains, essential for industrial communication protocols. Its robust CMOS process ensures reliable operation in electrically noisy environments, and the PLCC package offers a compact footprint for space-constrained control panels. Designers can integrate legacy PLDs into a single FPGA, simplifying BOM and reducing system cost.
Recommended
Automotive Electronics
In automotive electronics, the A42MX24-1PLG84 serves as a reliable FPGA for implementing body control modules, gateway interfaces, and motor control units. Its 5V operation allows direct interfacing with legacy automotive sensors and actuators, while the 3.3V supply option supports mixed-voltage designs. The device's 72 I/O pins can handle multiple CAN, LIN, and PWM signals, and the embedded dual-port SRAM facilitates message buffering. The commercial temperature range (-40Β°C to +85Β°C) covers most automotive cabin applications, though for under-hood use, the industrial-grade A42MX24-1PLG84I is recommended. The FPGA's reprogrammability enables firmware updates and design flexibility, reducing time-to-market for evolving automotive features. Its high reliability and long-term availability make it a trusted choice for automotive OEMs.
Recommended
Communication Interfaces
The A42MX24-1PLG84 is ideal for communication interface applications, such as protocol converters, serial-to-parallel bridges, and network routers. Its 72 I/O pins can support multiple UART, SPI, and I2C interfaces, while the dual-port SRAM enables efficient data packet buffering. The wide-decode circuitry accelerates address decoding and control signal generation, improving throughput. The 5V compatibility allows direct connection to legacy communication ICs, and the 3.3V mode supports modern low-voltage peripherals. The FPGA's reprogrammability enables support for evolving protocols without hardware changes. Its moderate logic capacity (36K gates) is sufficient for implementing protocol state machines and data path logic. The PLCC package's J-lead design provides reliable solder joints for long-term operation in networking equipment.
Recommended
Legacy PLD Consolidation
The A42MX24-1PLG84 is an excellent choice for consolidating multiple legacy PLDs (PAL, GAL, CPLD) into a single FPGA. Its 36,000 system gates and 912 logic cells can absorb the logic of several small PLDs, reducing component count and board space. The wide-decode circuitry mimics CPLD architectures, ensuring seamless migration of existing logic. The 5V I/O compatibility allows direct replacement of 5V PLDs without level shifting. The FPGA's reprogrammability enables iterative design refinement, and the JTAG interface simplifies in-system programming. This consolidation reduces BOM cost, improves reliability, and simplifies supply chain management. The 84-PLCC package is a common footprint, easing PCB layout. Designers can preserve legacy functionality while gaining the flexibility of an FPGA.
Recommended
Test and Measurement Equipment
In test and measurement equipment, the A42MX24-1PLG84 provides the logic resources and I/O flexibility needed for data acquisition, signal conditioning, and instrument control. Its 72 I/O pins can interface with ADCs, DACs, and display drivers, while the dual-port SRAM enables high-speed data buffering. The wide-decode circuitry accelerates trigger logic and timing control, improving measurement accuracy. The 5V operation is compatible with many analog front-end components, and the 3.3V mode supports low-power digital logic. The FPGA's reprogrammability allows firmware updates to add new measurement features. Its commercial temperature range is suitable for benchtop instruments, and the PLCC package offers a compact footprint for portable devices. The device's reliability ensures consistent performance in demanding test environments.
Recommended
Aerospace and Defense
The A42MX24-1PLG84 is used in aerospace and defense applications where reliability and long-term availability are critical. Its 5V operation is compatible with legacy military-grade logic, and the wide operating temperature range (-40Β°C to +85Β°C) covers many avionics environments. The FPGA's reprogrammability enables secure firmware updates and design changes without hardware modification. The 36,000 system gates are sufficient for implementing communication protocols, sensor interfaces, and control logic. The dual-port SRAM supports data buffering in radar and telemetry systems. While not radiation-hardened, the device can be used in less critical subsystems with appropriate shielding. The PLCC package provides robust mechanical integrity for vibration-prone environments. Microchip's long-term supply guarantee ensures availability for defense programs.
Recommended
Recommended Products Summary
Engineering reference data for A42MX24-1PLG84 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A42MX24-1PLG84I | A42MX24-PLG84 | A42MX24-2PLG84I | A42MX24-3PLG84I | A42MX24-3PLG84 |
|---|---|---|---|---|---|---|
| Package | 84-PLCC (J-Lead) | 84-PLCC (J-Lead) - same | 84-PLCC (J-Lead) - same | 84-PLCC (J-Lead) - same | 84-PLCC (J-Lead) - same | 84-PLCC (J-Lead) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 36000 | 36000 | 36000 | 36000 | 36000 | 36000 |
| Logic Cells | 912 | 912 | 912 | 912 | 912 | 912 |
| Number of I/O | 72 | 72 | 72 | 72 | 72 | 72 |
| Speed Grade | -1 | -1 | Standard | -2 | -3 | -3 |
| Operating Temperature | -40Β°C to +85Β°C | -40Β°C to +100Β°C | -40Β°C to +85Β°C | -40Β°C to +100Β°C | -40Β°C to +100Β°C | -40Β°C to +85Β°C |
| Supply Voltage | 3.0V-3.6V / 4.75V-5.25V | 3.0V-3.6V / 4.75V-5.25V | 3.0V-3.6V / 4.75V-5.25V | 3.0V-3.6V / 4.75V-5.25V | 3.0V-3.6V / 4.75V-5.25V | 3.0V-3.6V / 4.75V-5.25V |
Key Differentiators
- Industrial temperature range option (vs A42MX24-1PLG84)
- Speed grade flexibility (vs A42MX24-PLG84)
- 5V compatibility (vs A42MX24-1TQG176)
Design Notes
The A42MX24-1PLG84 supports dual supply voltages: 3.3V (3.0V-3.6V) and 5V (4.75V-5.25V). Ensure both rails are properly decoupled with 0.1uF ceramic capacitors placed close to each VCC pin, and a bulk capacitor (10uF) on the board. The power-up sequence should avoid applying I/O voltage before the core supply to prevent latch-up. Refer to the Microchip 40MX and 42MX FPGA Families datasheet (DS2316) for recommended power supply decoupling and sequencing guidelines.
For the 84-PLCC package, ensure the PCB footprint matches the J-lead dimensions. Use a reflow profile suitable for J-lead components, and consider a socket for prototyping to avoid thermal stress. Provide adequate ground plane and thermal vias under the package to dissipate heat. Route high-speed signals with controlled impedance and minimize trace lengths to I/O pins. Follow the layout recommendations in the datasheet to reduce noise and crosstalk.
A common pitfall is neglecting the dual supply voltage requirements. The A42MX24-1PLG84 requires both 3.3V and 5V supplies; missing one can cause malfunction. Also, ensure JTAG pins (TDI, TDO, TMS, TCK) are properly terminated with pull-up resistors as recommended. Do not leave unused I/O pins floating; configure them as outputs or tie them to a defined level. Verify the speed grade (-1) meets your timing requirements; if not, consider a faster grade like -2 or -3.
Compliance Information
RoHS compliance indicated by distributor listings. AEC-Q100 not specified for this part; automotive-grade variants may exist.
