EPM5032LC-20 - 32-Macrocell MAX 5000 CPLD, 20ns, LCC-28 | Altera
MPN: EPM5032LC-20 β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $15.75 | $157.50 |
| 100 | $12.2 | $1,220.00 |
| 500 | $9.85 | $4,925.00 |
| 1,000 | $8.4 | $8,400.00 |
Drop-in alternatives for EPM5032LC-20 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:
EPM5032LC-15
β Drop-Inβ In Stock
$8.2 / Unit
View Datasheet βEPM5032JC-20
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View Datasheet βEPM5032JC25
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View Datasheet βEPM5032LC-20 / 883B-equivalent
β Drop-Inπ Reference alternative (not in catalog)
EPM5016LC-17
β Drop-Inβ In Stock
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View Datasheet βEPM5032LC-20 Maximum Ratings & Electrical Characteristics
| Device Family | MAX 5000 |
| Product Type | EPLD / CPLD (One-Time Programmable / UV-Erasable) |
| Usable Gates | 600 gates |
| Macrocells | 32 |
| Logic Blocks (LABs) | 1 |
| Speed Grade | -20 (20 ns pin-to-pin) |
| Maximum Frequency | 71.4 MHz |
| Propagation Delay (tPD) | 20 ns |
| Supply Voltage (VCC) | 5 V Β±5% |
| Operating Temperature | 0 Β°C to +70 Β°C (commercial; -55 Β°C to +125 Β°C military per /883B variants) |
| Dedicated Inputs | 7 |
| Bidirectional I/O Pins | 16 |
| Total Inputs | 24 |
| Output Functions | 16 |
| Product Terms per Output | 16 |
| Programmable Interconnect | Programmable Interconnect Array (PIA) |
| Package | LCC-28 (Plastic Leaded Chip Carrier, J-lead) |
| Mounting Type | Surface Mount |
EPM5032LC-20 Pin Configuration
| Pin 1 | I/O β Bidirectional I/O pin 1 (macrocell-controlled) |
| Pin 2 | I/O β Bidirectional I/O pin 2 |
| Pin 3 | I/O β Bidirectional I/O pin 3 |
| Pin 4 | I/O β Bidirectional I/O pin 4 |
| Pin 5 | I/O β Bidirectional I/O pin 5 |
| Pin 6 | I/O β Bidirectional I/O pin 6 |
| Pin 7 | I/O β Bidirectional I/O pin 7 |
| Pin 8 | I/O β Bidirectional I/O pin 8 |
| Pin 9 | GND β Ground |
| Pin 10 | I/O β Bidirectional I/O pin 9 |
| Pin 11 | I/O β Bidirectional I/O pin 10 |
| Pin 12 | I/O β Bidirectional I/O pin 11 |
| Pin 13 | I/O β Bidirectional I/O pin 12 |
| Pin 14 | I/O β Bidirectional I/O pin 13 |
| Pin 15 | I/O β Bidirectional I/O pin 14 |
| Pin 16 | I/O β Bidirectional I/O pin 15 |
| Pin 17 | I/O β Bidirectional I/O pin 16 |
| Pin 18 | INPUT β Dedicated input pin 1 |
| Pin 19 | INPUT β Dedicated input pin 2 |
| Pin 20 | INPUT β Dedicated input pin 3 |
| Pin 21 | INPUT β Dedicated input pin 4 |
| Pin 22 | INPUT β Dedicated input pin 5 |
| Pin 23 | INPUT β Dedicated input pin 6 |
| Pin 24 | INPUT β Dedicated input pin 7 |
| Pin 25 | NC β Not connected (per MAX 5000 datasheet LCC-28 pinout) |
| Pin 26 | VCC β +5V supply |
| Pin 27 | NC β Not connected (per MAX 5000 datasheet LCC-28 pinout) |
| Pin 28 | NC β Not connected (per MAX 5000 datasheet LCC-28 pinout) |
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
EPM5032LC-20 is suitable for 6 applications: Microprocessor Bus Address Decoding, Industrial 5V Glue Logic Replacement, Legacy Peripheral Controller, Pin-Compatible PAL/GAL Replacement, Vintage Computing / Retro-Computing Projects, Military / Avionics Maintenance (with /883B variant).
Microprocessor Bus Address Decoding
The EPM5032LC-20 fits microprocessor bus address-decoding roles where fixed, deterministic pin-to-pin timing is required at power-up. With 32 macrocells and 16 output functions, it can decode a full 24-bit address bus with multiple chip-select outputs, replacing several discrete 74LS/74F-series decoder chips. The 20 ns tPD aligns with 5V 8-bit and 16-bit bus cycle times (e.g. 8086, 68000), and the non-volatile UV-erasable macrocells boot instantly without external PROM, unlike SRAM FPGAs. Designers use a single 5V rail with 0.1uF ceramic decoupling and route each decoded chip-select line directly from an EPM5032 output pin to the corresponding peripheral, saving both board space and the BOM cost of multiple decoder ICs. The 71.4 MHz fMAX also allows the same part to handle simple state machines in the same address-decode board.
Recommended
Industrial 5V Glue Logic Replacement
The EPM5032LC-20 is widely used in industrial 5V systems as a multi-function glue-logic consolidator, replacing scattered 74LS/74HC gates, muxes, and latches with one programmable device. Its 600 usable gates and 32 macrocells can absorb up to a dozen discrete packages, while the LCC-28 footprint supports through-hole or socketed retrofits in legacy PLC and process-control boards. The 5V Β±5% supply tolerance is compatible with industrial backplanes, and the 0-70 Β°C commercial operating range covers most factory-floor environments. Engineers typically route all board-level control signals - interrupts, watchdog triggers, mux selects, and reset coordination - into the same EPM5032, simplifying schematic review and shortening the BOM. Because the part is UV-erasable, prototype iteration is straightforward: erase under a UV lamp and re-program in-circuit.
Recommended
Legacy Peripheral Controller
The EPM5032LC-20 functions as a single-chip peripheral controller for legacy 5V I/O devices such as floppy-disk controllers, parallel-port interfaces, ISA cards, and IDE peripherals, where the host CPU offloads handshake logic to a CPLD. With 16 bidirectional I/O pins and 7 dedicated inputs, it can manage 8-bit data plus 4-6 control signals on its own, and the 20 ns tPD keeps pace with ISA-bus timing (8 MHz / 250 ns cycles give more than 10x timing margin). The non-volatile configuration means the device is ready at power-on - critical for boot-ROM decode and peripheral handshaking before any software loader runs. Designers often pair it with an 8-bit microcontroller, offloading real-time pin toggling to the CPLD to free CPU cycles.
Recommended
Pin-Compatible PAL/GAL Replacement
The EPM5032LC-20 is a structural upgrade path for older 24-pin or 28-pin PAL/GAL devices in existing designs, replacing 4-8 separate PAL chips with one CPLD that has 4x the macrocell density. Designers can map each original PAL's Boolean equations into one or more macrocells, route the existing signal names into the EPM5032's pinout, and re-program the device via UV erasure or via an Altera programming card - no PCB change required because the LCC-28 socket footprint is the same. This consolidation reduces BOM count, eliminates timing skew between separate PAL devices, and improves noise immunity because all decode logic shares one clock domain inside the CPLD. The 20 ns tPD matches typical 15-25 ns bipolar PAL speed grades, allowing direct drop-in for 22V10 and 20L8 legacy patterns.
Recommended
Vintage Computing / Retro-Computing Projects
Hobbyists and restoration engineers use the EPM5032LC-20 in retro-computing builds (e.g., S-100, VME, STEbus, Apple II peripheral cards) where modern FPGAs would be anachronistic or unavailable in through-hole-friendly footprints. The LCC-28 socket-friendly package suits classic through-hole prototyping boards, and the 5V supply aligns with vintage rail voltages. The 32 macrocells are sufficient to implement glue logic, video timing, or simple character generators for these systems. UV-erasability allows iterative development on authentic tooling, and the deterministic 20 ns tPD matches vintage TTL timing without surprises. Community retro-computing projects commonly use EPM5032LC-20 for re-implementing lost peripheral cards with period-correct timing.
Recommended
Military / Avionics Maintenance (with /883B variant)
For military and avionics sustainment programs, the EPM5032LC family supports MIL-STD-883 / 883B equivalents in the same LCC-28 footprint, qualified to -55 Β°C to +125 Β°C operation. Defense logistics agencies and avionics shops use these parts to keep legacy radar, navigation, and weapons-control systems operational where redesign is cost-prohibitive. The MAX 5000 architecture's deterministic timing and non-volatile boot give predictable real-time behaviour in cockpit and ground-mobile platforms. Each macrocell's 16 product terms and per-output flip-flop support the small state machines common in vintage MIL hardware. Procurement is typically through franchised MIL-spec distributors who certify lot traceability and 883B screening.
Recommended
Recommended Products Summary
Engineering reference data for EPM5032LC-20 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM5032LC-15 | EPM5032JC-20 | EPM5032JC25 | EPM5032DM/883B (MIL) | EPM5016LC-17 |
|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | Altera |
| Package | LCC-28 (J-lead, plastic, UV window) | LCC-28 - same | LCC-28 - same (OTP plastic) | LCC-28 - same (OTP plastic) | LCC-28 - same (ceramic, MIL-883B) | LCC-28 - same |
| Macrocells | 32 | 32 (same) | 32 (same) | 32 (same) | 32 (same) | 16 (-50%) |
| Propagation Delay (tPD) | 20 ns | 15 ns (-25%) | 20 ns (same) | 25 ns (+25%) | 20 ns (same) | 17 ns (-15%) |
| Maximum Frequency | 71.4 MHz | 83.3 MHz | 71.4 MHz | 62.5 MHz | 71.4 MHz | 76.9 MHz |
| Supply Voltage | 5 V Β±5% | 5 V | 5 V | 5 V | 5 V | 5 V |
| Operating Temperature | 0 Β°C to +70 Β°C (commercial) | 0 Β°C to +70 Β°C | 0 Β°C to +70 Β°C | 0 Β°C to +70 Β°C | -55 Β°C to +125 Β°C | 0 Β°C to +70 Β°C |
| Programming Type | UV-Erasable (windowed ceramic/erasable plastic LC) | UV-Erasable | OTP (one-time programmable) | OTP | OTP, MIL-883B | UV-Erasable |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete (MIL sustainment) | Obsolete |
Key Differentiators
- Higher macrocell density than MAX 3000 predecessors (vs EPM3032ATC44-10 (MAX 3000 family))
- Windowed UV-erasable option for development (vs EPM5032JC-20 (OTP plastic))
- LCC-28 socket-compatible with vintage 5V designs (vs EPM5032DC-20 (DIP-24))
- MIL-883B sibling for defense sustainment (vs EPM5032DM883B (DIP-24 MIL))
Design Notes
The EPM5032LC-20 requires a single +5 V Β±5% supply. Place a 0.1 Β΅F ceramic decoupling capacitor within 5 mm of each VCC/GND pin pair, plus a bulk 10 Β΅F tantalum or aluminum electrolytic capacitor at the board's 5 V entry point. Because MAX 5000 devices draw switching current during UV-erase and during high-frequency internal transitions, inadequate decoupling can introduce VCC sag that corrupts macrocell state - always include both local and bulk capacitance per the Altera MAX 5000 datasheet recommendations.
Route all dedicated input pins and bidirectional I/O traces as short as possible, ideally with a ground reference plane on the layer immediately beneath. The LCC-28 J-lead footprint requires J-lead solder pads sized to the JEDEC MS-018 specification; ensure the LCC socket (if used) is a quality low-profile tin/lead socket with gold or tin-plated contacts to avoid intermittent connections over thermal cycling. Avoid running high-current switching signals adjacent to EPM5032 I/O lines to prevent crosstalk into macrocell inputs.
Do not leave any EPM5032 I/O pin floating if unused - configure it as an output driving a defined logic level, or as an input with internal pull-up enabled via the design software, per the MAX 5000 datasheet. Floating I/O pins can pick up noise and cause extra quiescent supply current. Also, do not exceed the 5 V Β±5% supply tolerance or the part may enter an undefined macrocell state; always include a 5 V supervisor or brownout reset IC if the upstream supply is unregulated. When erasing with a UV lamp, confirm the integrated erase dose (typically 35-45 minutes under a 254 nm / 12 mW/cmΒ² lamp) before reprogramming.
Estimated: At maximum toggle activity on all 16 outputs into 50 pF loads, the EPM5032LC-20 dissipates approximately 200-300 mW. The plastic LCC-28 package has a theta_JA of roughly 60-80 Β°C/W on a 2-layer board with modest copper pour, so junction temperature rise above ambient is ~12-24 Β°C. For commercial-grade (0-70 Β°C) operation, a small copper pour under the exposed die-attach pad is sufficient. No external heatsink is required for normal 5 V / 20 ns operation.
Compliance Information
RoHS, REACH, lead-free and halogen-free status not stated in the verified web data; left as 'unknown' per Data Authenticity Rule 10. The /883B variants are MIL-STD-883 screened but this does not imply automotive AEC-Q100 qualification. The base EPM5032LC-20 is commercial-grade (0 Β°C to +70 Β°C).
