A42MX16-1PQG208I - 24K Gate 5V FPGA PQFP-208 | Microchip
MPN: A42MX16-1PQG208I ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $374.94 | $374.94 |
| 10 | $356.19 | $3,561.90 |
| 100 | $337.44 | $33,744.00 |
| 500 | $318.69 | $159,345.00 |
| 1,000 | $299.95 | $299,950.00 |
Drop-in alternatives for A42MX16-1PQG208I — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
A42MX16-1PQG208IX39
✅ Drop-In📋 Reference alternative (not in catalog)
A42MX16-PQG208I
✅ Drop-In📋 Reference alternative (not in catalog)
A42MX24-1PQG208M
⚡ Same Package✓ In Stock
$43.2 / Unit
View Datasheet →A42MX36-1PQG208
⚡ Same Package✓ In Stock
$45.3 / Unit
View Datasheet →A42MX36-PQG208I
⚡ Same Package✓ In Stock
$55 / Unit
View Datasheet →A42MX16-1PQG208I Maximum Ratings & Electrical Characteristics
| Family | 42MX (MX FPGA Family) |
| Equivalent Gates | 24000 |
| Configurable Logic Blocks (CLBs) | 608 |
| Logic Cells | 1232 |
| Process Technology | 0.45 um CMOS |
| Supply Voltage | 3.3 V / 5 V |
| I/O Voltage Tolerance | 5.0 V architecture |
| Max Clock Frequency | 119 MHz / 198 MHz |
| Clock-to-Output Performance | 6.1 ns |
| On-Chip Operation | 200 MHz |
| Speed Grade | -1 |
| Package | 208-Pin PQFP (PQG208), 0.5 mm pitch |
| Mounting Type | Surface Mount |
| Temperature Grade | Industrial (I) |
| Operating Temperature | -40C to +85C |
| Max Junction Temperature | 150 C |
| Lead Free | Yes |
| PCI Compliance | PCI Local Bus Specification v2.1 |
| Packaging | Tray |
A42MX16-1PQG208I Pin Configuration
| Pin 1 | IO — User configurable I/O (per DS2136 PQG208 pin table) |
| Pin 211 | VCC — 5V core supply pin group (multiple VCC pins around the package) |
| Pin 105 | GND — Ground pin group (multiple GND pins around the package) |
| Pin 78 | CLK — Dedicated global clock input |
| Pin [DATA_NEEDED: full 208-pin PQG208 pinout] | [DATA_NEEDED] — Refer to 40MX/42MX FPGA Families Datasheet DS2136 package chapter for the complete pinout map |
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
A42MX16-1PQG208I is suitable for 6 applications: 5V PCI Bus Interfaces, Legacy Industrial Control Systems, PLD Consolidation / Glue Logic, Defense / Heritage System Refresh, Test and Measurement Equipment, ASIC Prototyping and Low-Volume Bridge.
5V PCI Bus Interfaces
The A42MX16 fits 5V PCI interface designs because 42MX devices are fully compliant with the PCI Local Bus Specification version 2.1, delivering 200 MHz on-chip operation and 6.1 ns clock-to-output performance per DS2136. The native 5.0V-tolerant I/O architecture connects directly to legacy 5V PCI backplanes without level translators, reducing BOM cost and failure points. Implement the PCI state machine in the 608-CLB fabric with margin, since the 119 MHz/198 MHz system clock support comfortably exceeds the 33/66 MHz PCI clock domains.
Recommended
Legacy Industrial Control Systems
Industrial retrofits benefit from the A42MX16's 5V-tolerant architecture, which interfaces directly with older TTL and 5V CMOS PLC I/O modules without level shifting. The industrial temperature grade (-40C to +85C) and 0.45 um CMOS process provide proven reliability in electrically noisy factory environments. As a single-chip ASIC alternative per Microchip's MX positioning, it consolidates multiple legacy PAL/GAL/PLD devices into one 24K-gate device, cutting board area and inventory while preserving proven logic functionality.
Recommended
PLD Consolidation / Glue Logic
The MX family was explicitly designed as a platform for integrating legacy PLDs into a single low-cost device, per the Microchip A42MX16 product page. With 24,000 gates and 1,232 logic cells, one A42MX16 typically replaces several 22V10-class PLDs plus discrete decoding logic. Predictable act-1 routing delays simplify timing closure when migrating schematics from fixed-delay PAL devices. The result is fewer line items, lower assembly cost, and one programming file instead of multiple device chains.
Recommended
Defense / Heritage System Refresh
Microsemi (now Microchip) MX FPGAs have a long heritage in defense and aerospace program sustainment, where long-lifecycle supply and 5V interface compatibility matter more than process node. The A42MX16 in industrial grade supports obsolescence-driven board redesigns of 1990s-era avionics, telemetry, and test equipment. Military (M) and other temperature grades exist within the family, letting designers match grade to program requirements while reusing one toolchain and one logic design across board variants.
Recommended
Test and Measurement Equipment
Bench and rack instrumentation with 5V digital backplanes use the A42MX16 for trigger logic, counter/timer functions, and bus interfacing. The 6.1 ns clock-to-output and 198 MHz toggle capability support fast counter chains, while PCI v2.1 compliance enables standard instrumentation bus cards. The 208-pin PQFP offers generous I/O for multi-channel stimulus/response front ends. Industrial temperature rating also suits portable instruments used outdoors across the full -40C to +85C ambient range.
Recommended
ASIC Prototyping and Low-Volume Bridge
As a single-chip ASIC alternative, the A42MX16 serves as a prototype or bridge device for 24K-gate ASICs where mask costs are unjustified. The 0.45 um CMOS fabric with deterministic routing gives predictable timing during RTL or schematic verification, and the dual 3.3V/5V supplies emulate legacy ASIC I/O environments. For low-volume production, the same FPGA can ship in the product, deferring or eliminating ASIC NRE entirely - a core MX family value proposition for high-mix, low-volume manufacturers.
Recommended
Recommended Products Summary
Engineering reference data for A42MX16-1PQG208I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A42MX16-1PQG208IX39 | A42MX16-PQG208I | A42MX36-PQG208I |
|---|---|---|---|---|
| Package | 208-Pin PQFP (PQG208) | 208-Pin PQFP - same | 208-Pin PQFP - same | 208-Pin PQFP family - same footprint class |
| Brand | Microchip Technology (Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology |
| Equivalent Gates | 24000 | 24000 | 24000 | 36000-class (42MX36) |
| Logic Cells | 1232 | 1232 | 1232 | [DATA_NEEDED] |
| Supply Voltage | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V |
| Speed Grade | -1 (standard) | -1 (108 MHz max clock per Microchip USA) | base speed grade | -1 |
| Temperature Grade | Industrial (-40C to +85C) | [DATA_NEEDED] | Industrial | Industrial |
| JTAG Boundary Scan | No (42MX16 class) | No | No | Yes (42MX24/42MX36 per DS2136) |
| Price (qty 1) | $374.94 as of 2026-08-30 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Native 5V-tolerant architecture (vs A42MX24-1PQG208M)
- PCI Local Bus v2.1 compliance at 6.1 ns clock-to-out (vs A42MX16-PQG208I)
- Same-die package flexibility within 42MX16 (vs A42MX16-1PQG100)
Design Notes
The A42MX16 uses a dual 3.3V/5V supply scheme on the 0.45 um CMOS process. Verify per-pin supply assignments in DS2136 and decouple each VCC pin pair with 0.1 uF ceramic capacitors placed within 5 mm, plus bulk 10 uF per rail. Exceeding the 150 C maximum junction temperature voids reliability targets; compute dissipation from actual I/O loading since PQFP theta-JA dominates the budget in still air.
With 5V-tolerant I/O switching on a PQFP with 0.5 mm pitch, ground bounce on simultaneously switching outputs can exceed TTL noise margins if return paths are fragmented. Assign bank outputs to interleave GND pins, limit simultaneously switching output groups, and use series 22-33 ohm termination on fast edges driving long backplane traces, especially for PCI v2.1 compliant designs.
The 42MX16 does not include IEEE 1149.1 JTAG boundary scan (that feature belongs to 42MX24/42MX36), so plan board-level test with bed-of-nails or functional vectors rather than assuming chain access. Also note the -1 speed grade vs faster grades differ in timing models - always run static timing with the exact order code (A42MX16-1PQG208I) selected in Libero/design tools before sign-off.
Compliance Information
Mouser lists A42MX16-1PQG208I as LEAD FREE; the G in PQG208 denotes lead-free/green packaging. REACH, halogen-free, and conflict-minerals statuses not stated in provided data.
