EP1810JI-45 - 48-Macrocell UV PLD, 33.3 MHz, 68-pin JLCC | Altera
MPN: EP1810JI-45 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.2 | $162.00 |
| 100 | $13.85 | $1,385.00 |
| 500 | $11.4 | $5,700.00 |
| 1,000 | $9.75 | $9,750.00 |
Drop-in alternatives for EP1810JI-45 — 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:
EP1810JI-35
✅ Drop-In✓ In Stock
$18.6 / Unit
View Datasheet →EP1810JC-45
✅ Drop-In✓ In Stock
$21.1 / Unit
View Datasheet →EP1810JC-35
✅ Drop-In✓ In Stock
$5.48 / Unit
View Datasheet →EP1810JC-25
✅ Drop-In✓ In Stock
$6.8 / Unit
View Datasheet →EP1810GI-45
✅ Drop-In✓ In Stock
$56.4 / Unit
View Datasheet →EP1810GM883B
✅ Drop-In✓ In Stock
$125.4 / Unit
View Datasheet →EP1810JI-45 Maximum Ratings & Electrical Characteristics
| Manufacturer | Altera (now Intel FPGA) |
| Series | Classic EPLD Family |
| Device Type | UV-Erasable / OTP Complex PLD |
| Macrocell Count | 48 |
| Maximum Operating Frequency | 33.3 MHz |
| Propagation Delay (tPD) | 50 ns |
| Configurable I/O Lines | 48 |
| Dedicated Inputs | 12 |
| Technology | CMOS EPROM |
| Package Code | QCCJ |
| Package Type | 68-pin JLCC (J-leaded ceramic chip carrier) |
| Terminal Form | J BEND |
| Package Shape | SQUARE |
| Number of Terminals | 68 |
| Temperature Grade | INDUSTRIAL |
| Operating Temperature | -40 °C to +85 °C |
| Supply Voltage | 5 V (TTL compatible) |
| Programming Method | UV-erase (windowed) / OTP via JEDEC |
EP1810JI-45 Pin Configuration
| Pin 1 | GND — Ground |
| Pin 2 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 3 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 4 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 5 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 6 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 7 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 8 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 9 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 10 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 11 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 12 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 13 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 14 | GND — Ground |
| Pin 15 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 16 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 17 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 18 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 19 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 20 | VCC — +5 V supply |
| Pin 21 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 22 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 23 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 24 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 25 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 26 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 27 | GND — Ground |
| Pin 28 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 29 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 30 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 31 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 32 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 33 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 34 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 35 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 36 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 37 | VCC — +5 V supply |
| Pin 38 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 39 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 40 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 41 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 42 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 43 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 44 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 45 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 46 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 47 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 48 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 49 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 50 | GND — Ground |
| Pin 51 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 52 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 53 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 54 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 55 | I/O — Configurable I/O pin (macrocell-driven) |
| Pin 56 | IN — Dedicated input pin |
| Pin 57 | IN — Dedicated input pin |
| Pin 58 | IN — Dedicated input pin |
| Pin 59 | IN — Dedicated input pin |
| Pin 60 | IN — Dedicated input pin |
| Pin 61 | IN — Dedicated input pin |
| Pin 62 | IN — Dedicated input pin |
| Pin 63 | IN — Dedicated input pin |
| Pin 64 | IN — Dedicated input pin |
| Pin 65 | IN — Dedicated input pin |
| Pin 66 | IN — Dedicated input pin |
| Pin 67 | IN — Dedicated input pin |
| Pin 68 | VCC — +5 V supply |
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
EP1810JI-45 is suitable for 6 applications: Microprocessor Address Decoding, Industrial Control Glue Logic, Bus Interface Adapter Logic, Legacy TTL Logic Replacement, State Machine Controllers, Aerospace and Defense Avionics Interfaces.
Microprocessor Address Decoding
The EP1810JI-45 is well suited to address decoding in 8086, 68000, and similar 16-bit microprocessor systems. Its 48 macrocells can implement complex decode maps with chip-select outputs, while the 50 ns tPD provides comfortable margin against typical 8 MHz 8086 bus cycles (125 ns). With 48 I/O pins and 12 dedicated inputs, the device can decode multi-bank memory maps and generate multiple peripheral chip-selects in a single package, replacing several discrete 74LS138/74LS139 decoders. The TTL-compatible 5 V I/O interfaces directly to legacy microprocessor buses, and the deterministic tPD eliminates the timing variability found in PAL/GAL-based designs.
Recommended
Industrial Control Glue Logic
The EP1810JI-45 excels in industrial control designs that require deterministic glue logic between microcontrollers, sensors, and actuators. Its industrial -40 °C to +85 °C temperature range and 5 V TTL I/O make it a drop-in for PLC backplanes, motor controller boards, and instrumentation front-ends. The 50 ns tPD is more than sufficient for sub-microsecond control loops, and the 48-macrocell capacity can implement state machines, encoder quadrature decoders, and watchdog timers in a single device. Designers appreciate the predictable timing - unlike SRAM FPGAs, the EP1810JI-45's tPD does not vary with routing density, simplifying worst-case timing analysis in safety-critical industrial equipment.
Recommended
Bus Interface Adapter Logic
The EP1810JI-45 is commonly used as a bus interface adapter between legacy ISA, VME, or proprietary backplane buses. With 48 I/O lines, it can bridge 8/16-bit data buses, generate wait-state timing, and implement bus arbitration handshakes. The 33.3 MHz maximum frequency easily handles ISA's 8.33 MHz bus and slower VME transactions, while the deterministic 50 ns tPD guarantees compliant setup/hold timing. The 5 V TTL I/O matches the bus voltage levels directly without level shifters. When designing bus adapters, allocate macrocells for state-machine-based protocol engines and use the device's feedback paths to implement multi-cycle handshake sequences.
Recommended
Legacy TTL Logic Replacement
The EP1810JI-45 is widely deployed to consolidate discrete 74LS and 74ALS TTL glue logic into a single programmable device. A typical design may replace 5-15 TTL packages (74LS00, 74LS74, 74LS151, 74LS153, 74LS174, 74LS374, etc.) with one EP1810JI-45, reducing board area, power consumption, and inventory SKUs. The 48 macrocells provide ample capacity for these consolidations, and the predictable tPD simplifies timing closure. This is one of the highest-value applications for the EP1810JI-45 in maintenance of legacy industrial and aerospace systems where original TTL parts are increasingly hard to source at reasonable cost.
Recommended
State Machine Controllers
The EP1810JI-45 is ideal for FSM (finite state machine) implementations in protocol engines, sequencers, and control logic. Each macrocell contains a programmable flip-flop with configurable output polarity, making state register implementation straightforward. The deterministic 50 ns tPD guarantees state-transition timing regardless of state encoding complexity, a key advantage over SRAM-based FPGAs where tPD varies with placement. A single EP1810JI-45 can implement state machines with 8-32 states plus associated output decode, covering most protocol engines, sequencers, and encoder/decoder logic in industrial, automotive, and telecom applications.
Recommended
Aerospace and Defense Avionics Interfaces
The EP1810JI-45 and its /883B military-screened sibling EP1810GM883B are used in aerospace and defense applications including MIL-STD-1553 interface logic, ARINC 429 bus adapters, and avionics display controllers. The /883B processing provides -55 °C to +125 °C military temperature range plus extended reliability screening, suitable for flight-critical designs. The 48 macrocells can implement protocol encoding/decoding, bus monitoring, and discrete I/O expansion for legacy avionics. Designers value the deterministic timing - critical when validating to DO-254 design assurance levels - and the long-term data retention of EPROM technology compared to SRAM FPGAs which require continuous configuration.
Recommended
Recommended Products Summary
Engineering reference data for EP1810JI-45 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EP1810JI-35 | EP1810JC-45 | EP1810JC-35 | EP1810JC-25 | EP1810GI-45 | EP1810GM883B |
|---|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | Altera | Altera |
| Package | 68-pin JLCC (QCCJ) | 68-pin JLCC (QCCJ) - same | 68-pin PLCC | 68-pin PLCC | 68-pin PLCC | 68-pin PGA | 68-pin PGA |
| Macrocell Count | 48 | 48 | 48 | 48 | 48 | 48 | 48 |
| Propagation Delay (tPD) | 50 ns | 35 ns | 50 ns | 35 ns | 25 ns | 50 ns | 50 ns |
| Maximum Frequency (fMAX) | 33.3 MHz | 40 MHz | 33.3 MHz | 40 MHz | 50 MHz | 33.3 MHz | 33.3 MHz |
| Temperature Grade | INDUSTRIAL (-40 to +85 °C) | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | MILITARY (-55 to +125 °C) |
| Configurable I/O Lines | 48 | 48 | 48 | 48 | 48 | 48 | 48 |
| Dedicated Inputs | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| Technology | CMOS EPROM (UV-erasable) | CMOS EPROM (UV-erasable) | CMOS EPROM (UV-erasable) | CMOS EPROM (UV-erasable) | CMOS EPROM (UV-erasable) | CMOS EPROM (UV-erasable) | CMOS EPROM (UV-erasable, MIL-883 screened) |
Key Differentiators
- J-leaded ceramic chip carrier (JLCC) for high-reliability industrial applications (vs EP1810JC-45)
- Industrial temperature grade (-40 °C to +85 °C) with deterministic 50 ns tPD (vs EP1810GM883B)
- Same JEDEC-standard 68-pin footprint as the entire EP1810 family (vs MAX II EPM240T100C5N)
Design Notes
The EP1810JI-45 is UV-erasable through a quartz window on the top of the ceramic JLCC package. If the window is covered with an opaque label or damaged, erasure will fail. For one-time programming (OTP), simply do not erase after programming - the EPROM cells retain the bitstream. Newer designs should not assume modern Quartus tool support: use MAX+PLUS II or compatible legacy tools only.
Estimated: At VCC = 5.5 V maximum, fMAX = 33.3 MHz, and 100% I/O toggling, the EP1810JI-45 dissipates approximately 0.6 W. With the 68-pin JLCC ceramic package and typical industrial airflow, junction temperature rise is approximately 25 °C above ambient. Within the -40 to +85 °C industrial range this is acceptable, but designers should still provide adequate ground pins (4 GND pins in this package) and keep ceramic packages away from high-temperature sources.
When laying out a 68-pin JLCC footprint for EP1810JI-45, follow JEDEC standard MS-018 with 1.27 mm (0.050 inch) lead pitch. Use a socket for prototyping (e.g., 68-pin PGA-to-PLCC adapter or Aries 68-pin JLCC socket) so that UV-erase and reprogramming cycles are possible without desoldering. Always place decoupling capacitors (0.1 µF ceramic in parallel with 10 µF tantalum) within 5 mm of each VCC pin to suppress switching noise on the 5 V supply.
Compliance Information
EP1810JI-45 is a ceramic JLCC part with tin-lead (SnPb) terminal finish and is therefore NOT RoHS compliant by default. Some -45 variants may be available with lead-free finishes through special-order channels; verify with the specific distributor before sourcing. REACH compliance is unknown - ceramic JLCC packages typically do not contain REACH SVHCs above threshold, but the EPROM die materials should be verified. AEC-Q100 is not applicable as this is an industrial/aerospace programmable logic IC, not an automotive-grade part.
