EP1810JM-45 - 48 Macrocell Classic EPLD, 45ns, CMOS | Altera
MPN: EP1810JM-45 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $28.5 | $28.50 |
| 10 | $24.75 | $247.50 |
| 100 | $19.9 | $1,990.00 |
| 500 | $16.5 | $8,250.00 |
| 1,000 | $14.2 | $14,200.00 |
Drop-in alternatives for EP1810JM-45 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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EP1810GM883B
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View Datasheet →EP1810JM-45 Maximum Ratings & Electrical Characteristics
| Device Family | Classic EPLD (EP1810 series) |
| Macrocells | 48 |
| Usable Gates | ~900 gates |
| Propagation Delay (tpd) | 45 ns (max, -45 speed grade) |
| Supply Voltage (VCC) | 4.5 V to 5.5 V |
| Technology | CMOS, UV-EPROM configuration |
| Package Type | JLCC-68 (ceramic J-leaded chip carrier) |
| Package Code | JM (windowed ceramic, UV-erasable) |
| Pin Count | 68 |
| Operating Temperature | -55 C to +125 C (military grade) |
| I/O Compatibility | CMOS / TTL |
| Configuration Method | JEDEC fuse map, EPROM programmer |
| Programming Technology | UV-erasable EPROM (non-volatile, instant-on) |
| Mounting Type | Surface Mount (J-lead) |
| Logic Type | EPLD / PLD (programmable logic device) |
EP1810JM-45 jm (windowed ceramic, uv-erasable) Pin Configuration Guide
Complete pinout information for EP1810JM-45 (jm (windowed ceramic, uv-erasable) package) with 68 pins. 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 EP1810JM-45.
Refer to the datasheet for full pin configuration.
Estimated pin count: 68 pins (digital package)
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
EP1810JM-45 is suitable for 6 applications: Avionics and Military Avionics Glue Logic, Legacy Microprocessor Address Decoding, Industrial Control State Machines, Pin-Compatible TTL Array Replacement, Military Communications Interface Logic, Legacy Avionics Bus Controllers.
Avionics and Military Avionics Glue Logic
The EP1810JM-45 is a long-standing workhorse in military avionics where Altera Classic EPLDs replace clusters of 74LS/74F TTL glue logic with a single 5V, instant-on device. The 45ns tpd easily meets 20 MHz address decoding and interrupt-controller timing in MIL-STD-1553 and ARINC-429 interface cards, while the UV-EPROM configuration eliminates FPGA bitstream security concerns. The military -55C to +125C temperature rating, ceramic JLCC-68 package, and -45 speed grade are qualified per MIL-PRF-883, making this part a standard reference for legacy avionics sustainment programs.
Recommended
Legacy Microprocessor Address Decoding
The 48 macrocells of the EP1810JM-45 implement full address decoding for legacy microprocessors (8086, 68000, Z80) with deterministic 45ns propagation delay, comfortably fitting the address-to-chip-select timing of 8 MHz and 10 MHz CPU buses. Its non-volatile UV-EPROM configuration means the decoder comes up instantly at power-on, unlike an SRAM FPGA that requires a separate boot PROM. Designers typically replace 4 to 6 PAL/GAL devices and several 74LS138/139 decoders with a single EP1810, reducing board area and improving long-term reliability for industrial control CPUs.
Recommended
Industrial Control State Machines
The EP1810JM-45 is widely used in long-lifecycle industrial control systems (PLC I/O cards, motor controllers, factory-automation backplanes) where its 5V CMOS-TTL I/O interfaces directly to legacy 74LS peripherals without level shifting. Each macrocell's programmable flip-flop and AND/OR array implement 4 to 8-state sequential controllers, and 48 macrocells typically encode two or three concurrent state machines per device. The ceramic JLCC package with -55C to +125C rating handles plant-floor thermal extremes, while the 5V single-suprail simplifies power-tree design compared with modern 3.3V FPGAs.
Recommended
Pin-Compatible TTL Array Replacement
Designers use the EP1810JM-45 to consolidate 5 to 15 SSI/MSI 74LS/74F/74ALS packages into a single 68-pin device, eliminating propagation-delay skew between separate gates and reducing PCB area by 50-70%. The Altera MAX+PLUS II legacy toolchain compiles Boolean equations directly from TTL logic diagrams into JEDEC fuse maps, simplifying redesign. With a 45ns tpd worst-case, the EP1810 absorbs the timing of standard 74LS logic and improves noise margins thanks to CMOS output stages while preserving pin-level compatibility with TTL footprints.
Recommended
Military Communications Interface Logic
In HF/VHF military radio and tactical-communications equipment, the EP1810JM-45 implements codec framing, error-correction state machines, and baseband signal-routing logic. The 5V CMOS-TTL I/O interfaces directly to legacy MIL-STD-188 serial interfaces and audio codecs, while the 45ns propagation delay meets timing requirements for 16 kbps to 64 kbps secure-voice channels. The military temperature grade and ceramic JLCC-68 package are qualified for the vibration and thermal environments specified in MIL-STD-810, making this part a standard building block in tactical radio sustainment designs.
Recommended
Legacy Avionics Bus Controllers
The EP1810JM-45 is used in MIL-STD-1553 and ARINC-429 bus-interface cards to encode command words, manage bus-master arbitration, and latch remote-terminal status responses. Its 48 macrocells comfortably implement the entire transmit-and-receive state machine for one or two bus channels, and the 45ns timing margin meets the 1 MHz 1553 protocol with headroom for setup/hold. Designers sustain these avionics-bus systems decades after the original platform deployment because the EP1810JM-45 is one of the few logic devices still qualified for the full military temperature range with a documented Altera datasheet.
Recommended
Recommended Products Summary
Engineering reference data for EP1810JM-45 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EP1810GM883B | EP1810GM883 | EP1810GI-45 | EP1810JI-45 | EP1810JC-45 |
|---|---|---|---|---|---|---|
| Package | JLCC-68 (JM, ceramic windowed) | JLCC-68 (GM ceramic, 883B) | JLCC-68 (GM ceramic, 883B) | PGA-68 (GI ceramic) | JLCC-68 (JI ceramic OTP) | JLCC-68 (JC ceramic windowed) |
| Brand | Altera | Altera | Altera | Altera | Altera | Altera |
| Macrocells | 48 | 48 | 48 | 48 | 48 | 48 |
| Propagation Delay (tpd) | 45 ns | Standard speed (~55 ns) | Standard speed (~55 ns) | 45 ns | 45 ns | 45 ns |
| Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
| Operating Temperature | -55 C to +125 C (military) | -55 C to +125 C (883B) | -55 C to +125 C (883B) | -55 C to +125 C (military) | -55 C to +125 C (military) | -55 C to +125 C (military) |
| Configuration Method | UV-EPROM (windowed, erasable) | UV-EPROM or OTP (per order) | UV-EPROM or OTP (per order) | UV-EPROM | OTP (one-time-programmable) | UV-EPROM (windowed) |
| Process Technology | CMOS (Altera Classic EPLD) | CMOS (Classic EPLD) | CMOS (Classic EPLD) | CMOS (Classic EPLD) | CMOS (Classic EPLD) | CMOS (Classic EPLD) |
| Lifecycle Status | Obsolete | Obsolete (military stock) | Obsolete (military stock) | Obsolete | Obsolete | Obsolete |
Key Differentiators
- UV-erasable windowed ceramic JLCC package with full military temperature range (vs EP1810JI-45)
- Same Classic EPLD die as the entire EP1810 family (vs Modern MAX V CPLD)
- 5V single-supply CMOS-TTL I/O with -55C to +125C military grade (vs Lattice ispMACH 4000ZE)
Design Notes
Estimated: At 5V VCC and 48 fully-toggling macrocells at 10 MHz, the EP1810JM-45 typical CMOS power dissipation is approximately 250-400 mW, well within the JLCC-68 ceramic thermal envelope. Designers should still provide 1-2 square inches of copper pour under the exposed ceramic pad and avoid placing heat-generating analog parts within 5 mm. For sustained military-temperature operation at +125C, verify junction temperature against the device's thermal resistance (theta_JA approximately 30-40 C/W for JLCC-68 ceramic per typical Altera Classic EPLD packaging guidelines).
Critical: Do NOT assume the EP1810JM-45 is RoHS-compliant. The ceramic JLCC-68 JM package was manufactured with tin-lead (SnPb) solder-dipped leads per the mil-spec era. Verify RoHS status with the distributor before specifying in any new design - lead-free reflow profiles above 250C will damage the ceramic-package hermetic seal. If RoHS is required, plan a board redesign with a modern 5V-tolerant CPLD (MAX V or ispMACH 4000ZE) instead of attempting a drop-in ceramic-to-plastic migration, which would change package code.
Recommended: Socket the EP1810JM-45 in a production-quality 68-pin JLCC IC socket during prototyping to allow UV erasure and reprogramming. For prototype erasure, expose the quartz window to integrated UV-C flux of 12,000 uW-sec/cm2 for approximately 20-30 minutes per the Altera Classic EPLD programming specification. In production, switch to the EP1810JI-45 OTP variant to eliminate the socket cost; the JI is pin-compatible with the JM and accepts the same JEDEC fuse map.
Recommended: Keep all EP1810JM-45 output traces shorter than 50 mm on FR-4 to avoid ringing on the TTL-compatible outputs at 25 ns edge rates. Add 33 ohm series damping resistors within 25 mm of the output pin if the trace exceeds 25 mm or drives a high-capacitance bus (>50 pF). Place a 0.1 uF ceramic bypass capacitor within 5 mm of each VCC pin, plus a single 10 uF tantalum bulk capacitor per device. The Classic EPLD family has 4-8 VCC/GND pairs; bypassing every pair is essential for clean 5V operation under simultaneous switching outputs.
Compliance Information
Legacy mil-spec ceramic JLCC-68 package from the late 1980s/early 1990s; lead-free status not documented in the verified web data but the SnPb solder-dipped lead finish typical of that era strongly suggests non-RoHS. AEC-Q100 is for automotive-grade plastic ICs, not applicable to this military ceramic package.
