A42MX09-3PLG84I - 14K Gate 5V FPGA 84-PLCC | Microchip
MPN: A42MX09-3PLG84I β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $68.5 | $68.50 |
| 10 | $62.1 | $621.00 |
| 100 | $55.8 | $5,580.00 |
| 500 | $49.9 | $24,950.00 |
| 1,000 | $44.6 | $44,600.00 |
Drop-in alternatives for A42MX09-3PLG84I 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:
A42MX09-2PLG84I
β Drop-Inβ In Stock
$29.8 / Unit
View Datasheet βA42MX09-1PLG84I
β Drop-Inπ Reference alternative (not in catalog)
A42MX09-PLG84I
β Drop-Inπ Reference alternative (not in catalog)
A42MX09-3PLG84
β Drop-Inβ In Stock
$22.8 / Unit
View Datasheet βA42MX09-3PLG84M
β Drop-Inπ Reference alternative (not in catalog)
A42MX09-PL84I
β Drop-Inπ Reference alternative (not in catalog)
A42MX09-3PLG84I Maximum Ratings & Electrical Characteristics
| System Gates | 14,000 gates |
| Logic Cells | 336 |
| User I/O | 72 |
| Supply Voltage | 5.0 V |
| Speed Grade | -3 |
| Clock-to-Out | 5.6 ns |
| Internal Performance | 250 MHz |
| Dual-Port SRAM | Up to 2.5 kbits configurable |
| Dual-Port SRAM Access Time | 5 ns |
| FIFO Performance | 100 MHz |
| Package | 84-LCC (J-Lead) PLCC, 29.3 x 29.3 x 4.4 mm |
| Process Technology | 0.45 um |
| Operating Temperature | -40C to +85C (industrial, I suffix) |
| Mounting Type | Surface Mount |
| Packaging | Tube |
| RoHS Status | Compliant (lead-free, I suffix) |
| Configuration | Non-volatile, live at power-up |
| Family | MX (42MX) |
A42MX09-3PLG84I 84-lcc (j-lead) plcc, 29.3 x 29.3 x 4.4 mm Pin Configuration Guide
Complete pinout information for A42MX09-3PLG84I (84-lcc (j-lead) plcc, 29.3 x 29.3 x 4.4 mm package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for A42MX09-3PLG84I.
Refer to the datasheet for full pin configuration.
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
A42MX09-3PLG84I is suitable for 6 applications: Legacy 5V Industrial Control, Aerospace and Defense Board Upgrades, Telecommunications Line Cards, PLD Consolidation / Glue Logic Replacement, Test and Measurement Equipment, Medical Device Legacy Sustaining.
Legacy 5V Industrial Control
The A42MX09-3PLG84I is a natural fit for 5.0 V industrial control boards still running TTL-level I/O. Its native 5 V architecture connects directly to PLC backplanes, motor-drive controllers, and sensor buses without level shifters, while 14K gates and 72 user I/O absorb multiple legacy PLDs and glue-logic devices into one package. The -3 speed grade supports control loops clocked up to 250 MHz internally, and the 2.5 kbit dual-port SRAM buffers data between asynchronous subsystems. Industrial plants often keep 5 V equipment alive for decades, and the industrial -40C to +85C rating plus non-volatile, live-at-power-up configuration makes this part a low-risk modernization path for such installed bases.
Recommended
Aerospace and Defense Board Upgrades
Defense and aerospace programs frequently sustain 5 V avionics and ground-system boards designed around Actel MX antifuse FPGAs. The A42MX09-3PLG84I keeps that supply chain viable: the PLG84 footprint is unchanged from legacy drawings, configuration is non-volatile so boards power up functional without a configuration device, and the M-suffix sibling (A42MX09-3PLG84M) covers military screening flows. The 14K gate density suits bus interfaces, telemetry encoders, and sequencer logic. Designers upgrading older PLD-based boards consolidate decode, arbitration, and status logic into this single chip, reducing component count and improving reliability in radiation-tolerant-adjacent, high-vibration, wide-temperature environments.
Recommended
Telecommunications Line Cards
Telecom line cards benefit from the A42MX09-3PLG84I's combination of fast embedded memory and wide-decode logic. The 5 ns dual-port SRAM and 100 MHz FIFO support handle data-path elasticity, T1/E1 framing buffers, and bus width conversion, while 336 logic cells implement HDLC controllers, address decoders, and clock-domain bridging. The -3 speed grade delivers 5.6 ns clock-to-out for fast external bus turnaround. Because the MX family operates at 5.0 V, it interfaces directly with legacy line-card chipsets built before the 3.3 V transition, letting carriers extend the life of installed central-office equipment without redesigning the entire card.
Recommended
PLD Consolidation / Glue Logic Replacement
A common MX use case is collapsing a handful of 22V10 CPLDs, GALs, and TTL glue chips into one FPGA. The A42MX09-3PLG84I's 14K gates and 72 I/O comfortably absorb address decoding, wait-state generation, interrupt control, and simple state machines, cutting board area, BOM lines, and assembly cost. Fast wide-decode circuitry keeps decode paths in the nanosecond range, matching the timing expectations of legacy microprocessor buses. Because MX configuration is non-volatile and immediately active, the consolidated design powers up exactly like the original PLD solution, an important compatibility property when board revisions must remain software- and firmware-transparent to field technicians.
Recommended
Test and Measurement Equipment
Bench instruments and automated test fixtures often contain 5 V subsystems - relay drivers, trigger logic, timing generators - where the A42MX09-3PLG84I excels. Its deterministic, non-volatile configuration means the instrument is ready at power-up with no configuration download delay, and the 250 MHz internal performance supports precision timing generators and trigger state machines. The dual-port SRAM implements capture buffers or pattern memory without external RAM. The 84-PLCC J-lead package is easy to socket and rework in maintenance-heavy lab equipment, and the industrial temperature rating tolerates uncontrolled environments such as production-floor test stations and environmental chambers.
Recommended
Medical Device Legacy Sustaining
Long-lifecycle medical equipment - analyzers, imaging subsystems, patient monitors - commonly embeds MX FPGAs in 5 V sections that must be sustained for regulatory and service reasons. The A42MX09-3PLG84I allows footprint-identical replacements that keep design history files intact, a significant advantage under design-control change management. Its non-volatile configuration removes configuration-device failure modes relevant to device safety reviews, and the industrial -40C to +85C range covers cold-chain transport and storage requirements. Because only the speed grade and finish change versus other A42MX09 PLG84 order codes, form-fit-function documentation updates remain minimal and validation effort is contained.
Recommended
Recommended Products Summary
Engineering reference data for A42MX09-3PLG84I β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A42MX09-2PLG84I | A42MX09-1PLG84I | A42MX09-3PLG84M | A42MX09-PL84I |
|---|---|---|---|---|---|
| Package | 84-PLCC (J-Lead) | 84-PLCC (J-Lead) - same | 84-PLCC (J-Lead) - same | 84-PLCC (J-Lead) - same | 84-PLCC (PL84) - same footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 14,000 | 14,000 | 14,000 | 14,000 | 14,000 |
| Speed Grade | -3 | -2 | -1 | -3 | standard |
| Supply Voltage | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V |
| User I/O | 72 | 72 | 72 | 72 | 72 |
| Temperature Range | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | Military screening (M) | -40C to +85C (I) |
| RoHS / Lead Finish | RoHS compliant, lead-free | RoHS compliant, lead-free | RoHS compliant, lead-free | Per military screening flow | [DATA_NEEDED] |
| Clock-to-Out | 5.6 ns (-3) | Slower than -3 (see family datasheet) | Slowest grade in family | 5.6 ns (-3) | [DATA_NEEDED] |
Key Differentiators
- Fastest MX09 speed grade available in this footprint (vs A42MX09-2PLG84I)
- Industrial temperature with RoHS lead-free finish (vs A42MX09-3PLG84)
- Trade-off: lower cost at reduced speed (vs A42MX09-1PLG84I)
Design Notes
The MX family operates from a single 5.0 V supply. Estimated: with tens of mA of I/O switching and the -3 grade, budget at least 100-200 mA per device on the 5 V rail and verify with Libero power analysis for your specific design. Place 0.1 uF ceramic decoupling capacitors at each of the four corner VCC/GND pin pairs of the 84-PLCC plus one bulk 10 uF per device. Because PLCC power pins are distributed around the package, a solid 5 V plane is strongly recommended rather than routed power traces.
The PLG84 footprint is the classic J-lead PLCC-84 land pattern; when qualifying a lead-free (I-suffix) replacement for a tin-lead design, confirm your assembly profile supports SAC-type solders at the J-leads, which sit under the package body and need good flux delivery. Keep unused I/O configured per the MX recommended practice (input with pull-up or driven output) rather than floating, to avoid excess static current and noise pickup on the 5 V bus.
The -3 speed grade is the fastest MX09 grade, but static timing must still be run in Libero SoC for your actual design - do not assume 250 MHz on every path. If substituting A42MX09-2PLG84I or -1PLG84I during shortages, re-run timing before release; the slower grades reduce margin on every register-to-register path. Also note the ordering-code trap: A42MX09-3PLG84 without the I is commercial temperature and legacy finish - ordering the wrong suffix can stall industrial-temperature builds.
Compliance Information
Newark lists A42MX09-3PLG84I as RoHS Compliant: Yes. The I suffix denotes industrial temperature and lead-free finish per Microchip ordering conventions. REACH, halogen-free, and conflict-minerals status not stated in provided data.
