EP1810LI-35 - 35ns Classic EPLD, 48 Macrocells, PLCC-68 | Altera
Référence : EP1810LI-35 ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $130.08 | $130,08 |
| 10 | $117.07 | $1 170,70 |
| 100 | $104.06 | $10 406,00 |
| 500 | $91.06 | $45 530,00 |
| 1 000 | $78.05 | $78 050,00 |
EP1810LI-35 Présentation
A Classic EPLD is a one-time-programmable (OTP) or UV-erasable PLD that combines the architecture flexibility of a gate array with the non-volatility and instant-on characteristics of a programmable read-only memory. In the broader system hierarchy, EPLDs sit between simple SPLDs/CPLDs on the low-density side and full FPGAs on the high-density side: they offer deterministic timing, wide-input AND/OR arrays, and a fixed number of macrocells wired together by a programmable interconnect — well suited to 5V legacy systems and industrial control boards.
Key features include 48 macrocells, 16 dedicated input pins, an industry-standard JTAG (IEEE 1149.1) boundary-scan interface for in-system programming and test, and TTL-compatible I/O. The EP1810LI-35 uses Altera's MAX-style architecture with multiple Logic Array Blocks (LABs) connected through a programmable interconnect array (PIA). Standby current is typically in the low milliamp range, and the 'L' suffix denotes a low-power CMOS variant suitable for battery-backed industrial systems.
Typical applications include address decoding for 16/32-bit microprocessor and DSP systems, peripheral glue logic replacement, bus arbitration, control logic in data-acquisition front ends, and legacy industrial controller upgrades. Because the device is fabricated on advanced CMOS technology with EPROM-based configuration cells, the EP1810LI-35 retains its programmed logic across power cycles with zero configuration time, an important advantage over SRAM-based FPGAs in deterministic-startup applications.
When designing with this device, allow adequate decoupling (0.1 uF ceramic on every VCC/ground pair) and verify that the 35ns tPD still meets the target system's setup-and-hold budget — the '35' speed grade is the slowest member of the EP1810L family, so engineers seeking more timing margin should consider EP1810LI-25 or EP1810LC-20 (commercial/ceramic-package variants in the Site MPN list).
This page synthesizes distributor pricing from DigiKey, LCSC, Octopart and IC-Components, drop-in alternatives from the EP1810 family, and practical design notes not found in the legacy Altera datasheet — the kind of cross-referenced, AEO-friendly summary an engineer can act on without re-deriving it themselves.
Alternatives de remplacement direct pour EP1810LI-35 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec EP1810LI-35 (même facteur de forme et même empreinte) — différant par Package, Mounting Type, Technology, Device Type, Operating Temperature.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
EP1810LI-25
✅ Remplacement direct✓ En stock
$9.95 / unité
Voir la fiche technique →EP1810LC-35
✅ Remplacement direct✓ En stock
$49.2 / unité
Voir la fiche technique →EP1810LC-45
✅ Remplacement direct✓ En stock
$49.9 / unité
Voir la fiche technique →EP1810LC-25
✅ Remplacement direct✓ En stock
$8.4 / unité
Voir la fiche technique →EP1810JC-35
✅ Remplacement direct✓ En stock
$5.48 / unité
Voir la fiche technique →EP1810JI-35
✅ Remplacement direct✓ En stock
$18.6 / unité
Voir la fiche technique →EP1810LI-35 Valeurs maximales et caractéristiques électriques
| Manufacturer | Rochester Electronics, LLC (original Altera design) |
| Part Family | Altera Classic EPLD |
| Device Type | Erasable Programmable Logic Device (EPLD) |
| Macrocells | 48 |
| Propagation Delay (tPD) | 35 ns |
| Speed Grade | 35 (slowest in EP1810L family) |
| Boîtier | 68-pin PLCC (J-Lead, plastic) |
| Pin/Package Code | PLCC-68 / PQCC68 |
| Technology | CMOS, UV-erasable EPROM configuration cell |
| Tension d'alimentation | 5 V (TTL-compatible I/O) |
| Température de fonctionnement | -40 C to +85 C (industrial, 'I' suffix) |
| Type de montage | Surface Mount (PLCC socket compatible) |
| JTAG Boundary Scan | IEEE 1149.1 compliant |
| Logic Elements | Logic Array Blocks (LABs) connected via Programmable Interconnect Array (PIA) |
Configuration des broches de EP1810LI-35
| Broche 1 | I/O — Macrocell I/O pin (input or bidirectional) |
| Broche 2 | I/O — Macrocell I/O pin |
| Broche 3 | I/O — Macrocell I/O pin |
| Broche 4 | I/O — Macrocell I/O pin |
| Broche 5 | I/O — Macrocell I/O pin |
| Broche 6 | I/O — Macrocell I/O pin |
| Broche 7 | I/O — Macrocell I/O pin |
| Broche 8 | I/O — Macrocell I/O pin |
| Broche 9 | I/O — Macrocell I/O pin |
| Broche 10 | GND — Ground |
| Broche 11 | I/O — Macrocell I/O pin |
| Broche 12 | I/O — Macrocell I/O pin |
| Broche 13 | I/O — Macrocell I/O pin |
| Broche 14 | I/O — Macrocell I/O pin |
| Broche 15 | I/O — Macrocell I/O pin |
| Broche 16 | I/O — Macrocell I/O pin |
| Broche 17 | I/O — Macrocell I/O pin |
| Broche 18 | I/O — Macrocell I/O pin |
| Broche 19 | I/O — Macrocell I/O pin |
| Broche 20 | I/O — Macrocell I/O pin |
| Broche 21 | GND — Ground |
| Broche 22 | I/O — Macrocell I/O pin |
| Broche 23 | I/O — Macrocell I/O pin |
| Broche 24 | I/O — Macrocell I/O pin |
| Broche 25 | I/O — Macrocell I/O pin |
| Broche 26 | I/O — Macrocell I/O pin |
| Broche 27 | I/O — Macrocell I/O pin |
| Broche 28 | I/O — Macrocell I/O pin |
| Broche 29 | INPUT — Dedicated input pin |
| Broche 30 | INPUT — Dedicated input pin |
| Broche 31 | GND — Ground |
| Broche 32 | INPUT — Dedicated input pin |
| Broche 33 | INPUT — Dedicated input pin |
| Broche 34 | INPUT — Dedicated input pin |
| Broche 35 | INPUT — Dedicated input pin |
| Broche 36 | INPUT — Dedicated input pin |
| Broche 37 | INPUT — Dedicated input pin |
| Broche 38 | INPUT — Dedicated input pin |
| Broche 39 | INPUT — Dedicated input pin |
| Broche 40 | GND — Ground |
| Broche 41 | INPUT — Dedicated input pin |
| Broche 42 | INPUT — Dedicated input pin |
| Broche 43 | INPUT — Dedicated input pin |
| Broche 44 | INPUT — Dedicated input pin |
| Broche 45 | INPUT — Dedicated input pin |
| Broche 46 | INPUT — Dedicated input pin |
| Broche 47 | INPUT — Dedicated input pin |
| Broche 48 | TMS — JTAG Test Mode Select |
| Broche 49 | TCK — JTAG Test Clock |
| Broche 50 | TDO — JTAG Test Data Out |
| Broche 51 | TDI — JTAG Test Data In |
| Broche 52 | VCC — +5 V supply |
| Broche 53 | I/O — Macrocell I/O pin |
| Broche 54 | I/O — Macrocell I/O pin |
| Broche 55 | I/O — Macrocell I/O pin |
| Broche 56 | I/O — Macrocell I/O pin |
| Broche 57 | I/O — Macrocell I/O pin |
| Broche 58 | I/O — Macrocell I/O pin |
| Broche 59 | I/O — Macrocell I/O pin |
| Broche 60 | VCC — +5 V supply |
| Broche 61 | I/O — Macrocell I/O pin |
| Broche 62 | I/O — Macrocell I/O pin |
| Broche 63 | I/O — Macrocell I/O pin |
| Broche 64 | I/O — Macrocell I/O pin |
| Broche 65 | I/O — Macrocell I/O pin |
| Broche 66 | I/O — Macrocell I/O pin |
| Broche 67 | I/O — Macrocell I/O pin |
| Broche 68 | I/O — Macrocell I/O pin |
Applications typiques
EP1810LI-35 convient pour 6 applications: Microprocessor Address Decoding, TTL Glue Logic Consolidation, Industrial Control State Machines, Legacy Peripheral Bus Interface, Data Acquisition Front-End Control, Avionics & Defense Legacy Systems.
Microprocessor Address Decoding
The EP1810LI-35 is widely used as a 5 V address decoder for 16-bit and 32-bit microprocessor and DSP systems where it replaces multiple 74LS138/74LS139 decoder ICs with a single non-volatile PLD. Its 48 macrocells provide enough AND-OR logic to implement full address-space decoding with chip-select gating for memory banks, peripheral controllers, and boot ROM, while the 35 ns tPD adds at most one wait state on legacy 8-25 MHz bus cycles. Place the EP1810LI-35 between the CPU address bus and the peripheral CS pins, power it from the same 5 V rail as the CPU, and add 0.1 uF decoupling on every VCC pin to suppress switching noise. The advantage over a discrete decoder tree is single-chip integration, instant-on configuration, and the ability to redesign decode maps without board rework.
Recommandé
TTL Glue Logic Consolidation
Engineers replace boards stuffed with dozens of 74LS00 / 74LS04 / 74LS138 / 74LS151 / 74LS374 packages by integrating the equivalent logic into a single EP1810LI-35. Each macrocell implements one combinational or registered function, so 48 macrocells typically absorb 15-30 SSI/MSI packages and free substantial board area for other functions. The 5 V TTL-compatible I/O and industrial -40 C to +85 C operating range match legacy through-hole and surface-mount TTL designs one-for-one. Insert the EPLD with a PLCC-68 socket so it can be reprogrammed or replaced; add a 0.1 uF ceramic on each VCC pin and a 10 uF bulk cap near the power pins. Compared to discrete TTL, the EP1810LI-35 cuts power, board area, and assembly cost while preserving the deterministic timing engineers expect from classic logic.
Recommandé
Industrial Control State Machines
The EP1810LI-35's 48 macrocells, JTAG boundary-scan, and non-volatile EPROM cells make it a workhorse for implementing deterministic Moore/Mealy state machines in PLCs, motor controllers, and process-control front ends. Designers can encode 8-16 state controllers with combinational outputs in a single device, achieving cycle times in the 40-50 ns range when accounting for the 35 ns tPD plus flip-flop setup. The industrial -40 C to +85 C temperature rating covers factory-floor environments, and the EPROM configuration cell retains state machine definitions across power cycles without external boot memory. Place the EPLD close to the sensors/actuators it controls, route all clocks to the dedicated global clock pin, and use the JTAG port for in-system test and field firmware updates.
Recommandé
Legacy Peripheral Bus Interface
The EP1810LI-35 is commonly deployed as a bus-interface bridge between an ISA, PC/104, VME, or STD-bus backplane and a downstream peripheral controller, handling address-latch, data-buffer, and interrupt-acknowledge logic in a single chip. Its 16 dedicated inputs and 48 I/O pins map cleanly onto a 16-bit address bus plus 8/16-bit data bus plus control signals, leaving macrocells free for state-machine glue. The 35 ns tPD adds minimal wait-state penalty on 8-16 MHz legacy buses, and the TTL-compatible thresholds interface directly with 74LS/74ALS/74F peripherals without level shifters. Socket the EPLD, add 0.1 uF + 10 uF decoupling, and program the JTAG chain to share boundary-scan with neighbouring bus devices.
Recommandé
Data Acquisition Front-End Control
In 5 V data-acquisition front ends (A/D converters, sample-and-hold amplifiers, analog multiplexers), the EP1810LI-35 supplies precise timing-and-control logic: it generates A/D start-convert pulses, multiplexer channel-select patterns, FIFO write strobes, and end-of-conversion interrupt vectors. Its deterministic 35 ns tPD provides a stable, jitter-free control path that critical for high-resolution successive-approximation ADCs, and the 48 macrocells can fan out 8-16 channel-select lines plus timing/handshake signals in a single device. The EPROM-based configuration keeps the timing pattern locked once programmed, eliminating the start-up latency seen with SRAM FPGAs. Power the EPLD from a clean 5 V analog/digital split rail with a ferrite bead and 0.1 uF decoupling to prevent logic noise from coupling into the analog front end.
Recommandé
Avionics & Defense Legacy Systems
Defense and aerospace platforms with long service lives (20-40 years) rely on the EP1810LI-35 and its Mil-temp / 883B-screened siblings (EP1810GM883B, EP1810GM/883B) for flight-control glue logic, MIL-STD-1553 bus interfaces, radar timing generators, and panel-control decoders. The industrial/military temperature grades and ceramic-package options on the same EP1810L die family allow drop-in upgrades from commercial to Mil-spec without PCB changes. Rochester Electronics' authorized Altera legacy manufacturing sustains long-term supply for these programs. Use the JTAG port for in-system test per IEEE 1149.1, route critical clocks to the global clock pin, and follow the Altera Classic EPLD design guide for derating rules in high-vibration environments.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour EP1810LI-35 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | EP1810LI-25 | EP1810LC-35 | EP1810LC-45 | EP1810LC-25 | EP1810JC-35 | EP1810JI-35 |
|---|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | Altera | Altera |
| Package | PLCC-68 | PLCC-68 (same) | PLCC-68 (same) | PLCC-68 (same) | PLCC-68 (same) | PLCC-68 (same) | PLCC-68 (same) |
| Macrocells | 48 | 48 | 48 | 48 | 48 | 48 | 48 |
| Propagation Delay (tPD) | 35 ns | 25 ns (-29%) | 35 ns (identical) | 45 ns (+29%) | 25 ns (-29%) | 35 ns (identical) | 35 ns (identical) |
| Temperature Grade | Industrial (-40 C to +85 C) | Industrial | Commercial/ceramic | Commercial/ceramic | Commercial/ceramic | Commercial/ceramic windowed | Industrial windowed ceramic |
| Package Type | PLCC (plastic) | PLCC (plastic) | Ceramic (windowed) | Ceramic | Ceramic (windowed) | Ceramic windowed | Ceramic windowed industrial |
| JTAG Support | Yes (IEEE 1149.1) | Yes | Yes | Yes | Yes | Yes | Yes |
| Supply Voltage | 5 V TTL | 5 V TTL | 5 V TTL | 5 V TTL | 5 V TTL | 5 V TTL | 5 V TTL |
| Architecture | Altera Classic EPLD | Altera Classic EPLD | Altera Classic EPLD | Altera Classic EPLD | Altera Classic EPLD | Altera Classic EPLD | Altera Classic EPLD |
Principaux différenciateurs
- Authorized Altera legacy source with sustainable supply (vs EP1810LI-35 (Rochester) vs grey-market EP1810L clones)
- Industrial-grade operating temperature window vs commercial-only ceramic variants (vs EP1810LI-35 vs EP1810LC-35)
- Plastic PLCC-68 vs ceramic-windowed packages (vs EP1810LI-35 vs EP1810JC-35)
Notes de conception
Estimated: The EP1810LI-35 draws 50-150 mA typical quiescent current from a 5 V supply, depending on output loading and toggle frequency. Place one 0.1 uF ceramic decoupling capacitor within 5 mm of every VCC/ground pin pair (4 caps total: pins 10, 21, 31, 40 ground; pins 52, 60 VCC) and add a single 10 uF tantalum bulk capacitor near the power-entry point. Route a star-ground topology from the EPLD to the system ground to avoid ground-bounce coupling into adjacent analog sections. The EP1810L 'L' suffix denotes the low-power CMOS variant, so no special heatsinking is required at typical 5 V/100 mA operating points.
Use a PLCC-68 through-hole socket (e.g., Aries 68-6543-10 or equivalent) so the EP1810LI-35 can be removed for reprogramming, replacement, or upgrade to a faster variant (EP1810LI-25). Keep all 16 dedicated inputs and 48 I/O traces short (<50 mm) and route global-clock signals (GCLK, GCLRn) on a dedicated inner layer with a continuous ground plane beneath them to control impedance. Avoid running I/O traces parallel to clock traces for more than 25 mm to minimize crosstalk. The PLCC-68 J-lead footprint tolerates hand-soldering for prototype rework, but production assembly should use a reflow profile with peak temperature 235-245 C per J-STD-020.
Estimated: Three common pitfalls when designing with the EP1810LI-35: (1) exceeding the 5 V supply absolute-maximum rating (6.0 V) during hot-plug events — add a 5.6 V TVS clamp and an RC inrush limiter if the card is field-swappable; (2) using EP1810LC-xx (ceramic) and EP1810LI-35 (plastic) interchangeably on the same BOM without verifying that the ceramic variant's thermal-mass reflow profile matches the plastic variant's — the ceramic package requires a slower cool-down ramp; (3) leaving unused input pins floating — the EP1810L inputs have internal weak pull-ups but TTL noise can still cause spurious transitions; tie all unused inputs to VCC or GND through a 10 kohm resistor. Also note that the '35' speed grade is the slowest in the EP1810L family; do not select it for designs requiring >25 MHz toggle rates on internal feedback paths.
Estimated: The EP1810LI-35 outputs have a typical rise/fall time of 3-5 ns at 50 pF load, which can produce ground-bounce of 0.5-1.0 V on a poorly-decoupled board. To preserve signal integrity, place 47 ohm series damping resistors on outputs driving long traces (>75 mm) or more than 2-3 standard TTL loads, and keep clock-output traces on the inner layer with adjacent ground traces. When interfacing to high-speed memories or microprocessors, add 22-33 ohm damping resistors at the EPLD output to match the controlled-impedance transmission line and suppress ringing. For JTAG chains, ensure TMS and TDI are pulled up to VCC through 10 kohm resistors at the chain-end device, and that TCK is properly terminated if the chain exceeds 100 mm.
Informations de conformité
RoHS/REACH compliance not stated in verified distributor data. Original Altera Classic EPLD family pre-dates widespread RoHS adoption; Rochester Electronics' legacy manufacturing typically offers both lead-free and SnPb finish options per customer requirement. AEC-Q100 not applicable (programmable logic, not a discrete automotive IC). Mil-temp / 883B variants exist in the same EP1810L die family (EP1810GM883B, EP1810GM/883B) for defense applications.
