A42MX16-2PLG84I - 24K Gate MX FPGA, 84-PLCC | Microchip
MPN: A42MX16-2PLG84I β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $45.2 | $45.20 |
| 10 | $41.3 | $413.00 |
| 100 | $37.6 | $3,760.00 |
| 500 | $34.1 | $17,050.00 |
| 1,000 | $30.8 | $30,800.00 |
Drop-in alternatives for A42MX16-2PLG84I 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:
A42MX16-1PLG84
β Drop-Inβ In Stock
$44.2 / Unit
View Datasheet βA42MX16-FPLG84
β Drop-Inβ In Stock
$21.5 / Unit
View Datasheet βA42MX16-PLG84I
β Drop-Inπ Reference alternative (not in catalog)
A42MX16-2PLG84C
β Drop-Inπ Reference alternative (not in catalog)
A42MX09-PLG84
β‘ Same Packageπ Reference alternative (not in catalog)
A42MX16-2PLG84I Maximum Ratings & Electrical Characteristics
| System Gates | 24000 |
| Family | MX FPGA |
| Number of I/O | 72 |
| Speed Grade | -2 |
| Supply Voltage (Core) | 3 V to 3.6 V |
| Supply Voltage (I/O) | 4.5 V to 5.5 V |
| Operating Temperature | -40C to +85C |
| Programmability | One-Time Programmable (antifuse) |
| Package | 84-LCC (J-Lead / PLCC) |
| Mounting Type | Surface Mount |
| Configuration Memory | Internal (no external boot PROM required) |
| RoHS Status | Lead Free |
| Moisture Sensitivity Level | [DATA_NEEDED: MSL level] |
| Total Logic Modules | [DATA_NEEDED: logic module count] |
| Max User Flip-Flops | [DATA_NEEDED: flip-flop count] |
| Embedded Memory | None (logic only, MX16 fabric) |
| Development Software | Microchip Libero SoC |
A42MX16-2PLG84I Pin Configuration
| Pin 1 | IO β User input/output (bank assignment per datasheet) |
| Pin 12 | VCC β Core supply (3V-3.6V) |
| Pin 22 | GND β Ground |
| Pin 26 | VPP β Programming voltage supply pin |
| Pin 33 | CLKA β Dedicated global clock input |
| Pin 42 | CLKB β Dedicated global clock input |
| Pin 55 | IO β User input/output |
| Pin 63 | RESET β Dedicated system reset input |
| Pin 72 | IO β User input/output |
| Pin 84 | GND β Ground |
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
A42MX16-2PLG84I is suitable for 6 applications: Legacy PLD Consolidation, Industrial Automation Control, Aerospace and Defense Heritage Systems, Telecommunications Line Cards, Medical Equipment Sustenance, Secure Embedded Controllers.
Legacy PLD Consolidation
The MX family is explicitly designed as a single-chip ASIC alternative for integrating legacy PAL, GAL, and CPLD devices. The A42MX16-2PLG84I provides 24,000 system gates and 72 user I/O in a 5.0V-tolerant architecture, allowing multiple discrete 20- and 24-pin PLDs to be absorbed into one 84-PLCC device. Because its antifuse configuration is permanent and requires no boot PROM, the consolidated design retains instant-on behavior identical to the original PLDs while cutting BOM count, board area, and inventory SKUs, which is decisive when sustaining legacy industrial and telecom platforms.
Recommended
Industrial Automation Control
In factory automation panels and PLC I/O cards, the A42MX16-2PLG84I fits because its industrial rating of -40C to +85C covers full industrial ambient range, and the 4.5V-5.5V tolerant I/O supply interfaces directly with 5V TTL field logic common on installed equipment. The 24K-gate fabric implements bus arbitration, encoder decoding, and interlock logic with deterministic, glitch-free antifuse routing. One-time programming eliminates configuration corruption risks from power glitches, a common field failure in SRAM FPGA industrial boards, improving mean time between failures in continuously operating machinery.
Recommended
Aerospace and Defense Heritage Systems
Aerospace and defense sustainment programs frequently need to reproduce discontinued logic boards. The A42MX16-2PLG84I supports this because the antifuse fabric has no configuration readback path, providing inherent protection against reverse engineering, and its one-time-programmed nets are immune to SEU-induced configuration upset compared with SRAM FPGAs. The 84-PLCC J-lead package is mechanically robust and available in industrial grade, matching heritage board formats. Design teams can re-author legacy netlists in Libero SoC and reprogram identical footprints to extend platform service life.
Recommended
Telecommunications Line Cards
Telecom line-card designs use the A42MX16-2PLG84I for framing glue logic, backplane interface bridging, and timing distribution. The 5.0V-tolerant MX architecture connects directly to legacy TTL-level backplanes such as 5V VME and H.110 derivative hardware without level shifters, saving board area and cost. Its deterministic antifuse delays support predictable setup/hold timing against backplane clocks, and the -2 speed grade suits moderate clock rates typical of legacy line cards. The one-time-programmed configuration also eliminates boot-time configuration loading on the shared backplane.
Recommended
Medical Equipment Sustenance
Medical imaging and monitoring platforms built in the 1990s and 2000s rely on 5V FPGA logic for interface and control. The A42MX16-2PLG84I sustains these designs because Microchip maintains the MX family for long-lifecycle platforms, giving repair organizations a valid source for replacement logic. Its antifuse programming means a stocked spare is always ready with no configuration media, and the industrial temperature range covers equipment thermal envelopes. Hospitals and service depots can reproduce the original PLG84 footprint without PCB redesign, keeping certification documentation intact.
Recommended
Secure Embedded Controllers
Applications requiring design IP protection choose the A42MX16-2PLG84I because antifuse one-time programming provides no mechanism to read back the programmed netlist, unlike SRAM FPGAs whose bitstreams can be intercepted. Once programmed, the configuration also needs no external boot flash, removing the most common attack and reliability surface. The 24K-gate capacity implements state machines, authentication glue logic, and tamper-response circuits, while the dual-rail supply supports mixed 5V I/O with a lower-voltage core for reduced power in always-on secure enclosures.
Recommended
Recommended Products Summary
Engineering reference data for A42MX16-2PLG84I β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A42MX16-1PLG84 | A42MX16-FPLG84 | A42MX16-2PLG84C | A42MX09-PLG84 |
|---|---|---|---|---|---|
| Package | 84-LCC (PLCC, J-Lead) | 84-LCC (PLCC) - same | 84-LCC (PLCC) - same | 84-LCC (PLCC) - same | 84-LCC (PLCC) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 24000 | 24000 | 24000 | 24000 | 9000 |
| User I/O | 72 | 72 | 72 | 72 | [DATA_NEEDED] |
| Speed Grade | -2 | -1 (faster) | [DATA_NEEDED] | -2 | [DATA_NEEDED] |
| Temperature Range | -40C to +85C (industrial) | [DATA_NEEDED: per suffix] | [DATA_NEEDED] | 0C to +70C (commercial) | [DATA_NEEDED] |
| Architecture | Antifuse OTP, 5.0V tolerant | Antifuse OTP - same | Antifuse OTP - same | Antifuse OTP - same | Antifuse OTP - same |
| External Boot Memory Required | No | No | No | No | No |
Key Differentiators
- Industrial temperature grade (vs A42MX16-2PLG84C)
- Same die, lower speed grade economics (vs A42MX16-1PLG84)
- No external configuration memory needed (vs SRAM FPGAs)
Design Notes
MX antifuse devices are one-time programmable. Complete full functional simulation and static timing analysis in Microchip Libero SoC before committing the device to programming; a programming error or late timing violation means the physical part must be scrapped. Verify the -2 speed grade meets your worst-case timing corner, or select the -1 grade for margin. Also confirm VPP programming supply availability on your programming hardware fixture.
The device operates from a core supply (3V-3.6V per device documentation) with 5V-tolerant I/O operation. Provide solid decoupling: at least 0.1uF ceramic per supply pin pair plus 10uF bulk per rail. Because antifuse fabrics draw low static current, power budgeting is dominated by dynamic switching; reduce simultaneous switching on the 72 I/O or add series termination on heavy bus loads to limit ground bounce on the PLCC leadframe, which has higher inductance than QFN packages.
The 84-PLCC J-lead package supports both socketed and direct SMD mounting. For new designs, solder directly to the PCB and pour ground plane under the device to reduce leadframe inductance effects on signal integrity. If a socket is required for field programming, choose a zero-insertion-force PLCC socket rated for the industrial temperature range and account for the additional 1-2pF per pin loading in timing analysis.
Compliance Information
Distributor listings (PCB Electronics, Datasheet Directory) explicitly mark the part as LEAD FREE. REACH and halogen-free status not stated in provided data.
