EP610PI-25 - 16-Macrocell Classic EPLD, 25ns DIP-24 | Rochester
MPN: EP610PI-25 ✗ اختتامِ زندگیEP610PI-25 جائزہ
A Programmable Logic Device (PLD) is a general-purpose digital IC whose logic function is defined after manufacture by the user, sitting in the broader hierarchy of programmable logic between simple PAL/GAL arrays and modern CPLD/FPGA fabrics. The Classic EP610 family represents an early generation of CMOS UV-erasable EPLDs that consolidated several PAL-equivalent macrocells into a single AND/OR array with per-macrocell flip-flop and output enable control. The 'P' suffix designates the plastic/ceramic DIP package, the 'I' indicates the industrial operating temperature range, and the '-25' suffix specifies the 25 ns tPD speed grade, which is the slowest of the family and well suited to bus-interface and control-logic applications running below ~40 MHz.
Key features of the EP610PI-25 include 16 macrocells, four dedicated inputs, 16 bidirectional I/O pins in the 24-pin DIP, output macrocell flip-flops with configurable D/T/JK/SR modes, programmable output enable per macrocell, and a single global clock. Architecture is based on a sum-of-products (AND-OR) PLA with each macrocell feeding one bidirectional I/O pin. The device is non-volatile (UV-erasable) and offers deterministic 25 ns propagation delay that does not depend on routing density, an advantage over later channel-routed CPLDs. Power consumption is typically under 200 mW at 5 V, and the part is 100% pin-compatible with the EP610PI-20 and EP610PI-15 faster speed grades, allowing direct in-circuit speed upgrade.
Typical applications include legacy bus-interface decoding (8086, 68000, Z80 address decode and glue logic), industrial control state machines, telecommunications channel-bank control, instrumentation address decoding, and as a pin-compatible replacement for multiple PAL/GAL devices in legacy aerospace and military systems. The DIP-24 through-hole footprint also supports easy breadboarding and socketed replacement in maintenance scenarios.
When designing with the EP610PI-25, use the Altera MAX+PLUS II (legacy) or A+PLUS development environment for schematic/VHDL/Verilog entry, and ensure the JTAG/programming socket allows UV erasure (windowed packages). Provide a clean 5 V ±5% supply and decouple VCC with a 0.1 µF ceramic capacitor adjacent to the IC. Note that modern 5 V-tolerant CPLDs such as the MAX II family offer much higher density but at a different pinout; the EP610PI-25 is a true drop-in for legacy EP610 designs only.
This page synthesizes legacy Rochester Electronics distributor pricing, drop-in EP610 family alternatives that share the DIP-24 footprint, and practical design notes for maintaining legacy EPLD designs not found in the original Altera datasheet.
کے لیے ڈراپ اِن متبادل EP610PI-25 — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں EP610PI-25 (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Family, Technology, Mounting Type, Supply Voltage (VCC).
EP610PC-25
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →EP610DC-25
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →EP610LC-25
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →EP610IPC-25
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →EP610PC-25T
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →EP610LI-25
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →EP610PI-25 زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Product Type | Erasable Programmable Logic Device (EPLD) |
| Series | Classic EP610 |
| Macrocells | 16 |
| Usable Gates | ~300 gates |
| Propagation Delay (tPD) | 25 ns |
| Number of Dedicated Inputs | 4 |
| Number of Bidirectional I/O Pins | 16 |
| پیکیج | 24-pin DIP (PI) ceramic through-hole |
| آپریٹنگ درجہ حرارت رینج | Industrial (I suffix): -40C to +85C |
| Supply Voltage (VCC) | 5 V nominal |
| Process Technology | CMOS, UV-erasable |
| Programmable Flip-Flop Modes | D, T, JK, SR (per macrocell) |
| Global Clock Pins | 1 |
| ماؤنٹنگ ٹائپ | Through-Hole (DIP) |
| Original Manufacturer | Altera (now Intel PSG; legacy stock from Rochester Electronics) |
EP610PI-25 پن کنفیگریشن
| پن 1 | I/O0 — Bidirectional I/O / macrocell 0 (with input and feedback) |
| پن 2 | I/O1 — Bidirectional I/O / macrocell 1 |
| پن 3 | I/O2 — Bidirectional I/O / macrocell 2 |
| پن 4 | I/O3 — Bidirectional I/O / macrocell 3 |
| پن 5 | I/O4 — Bidirectional I/O / macrocell 4 |
| پن 6 | I/O5 — Bidirectional I/O / macrocell 5 |
| پن 7 | I/O6 — Bidirectional I/O / macrocell 6 |
| پن 8 | I/O7 — Bidirectional I/O / macrocell 7 |
| پن 9 | I/O8 — Bidirectional I/O / macrocell 8 |
| پن 10 | I/O9 — Bidirectional I/O / macrocell 9 |
| پن 11 | I/O10 — Bidirectional I/O / macrocell 10 |
| پن 12 | GND — Ground |
| پن 13 | I/O11 — Bidirectional I/O / macrocell 11 |
| پن 14 | I/O12 — Bidirectional I/O / macrocell 12 |
| پن 15 | I/O13 — Bidirectional I/O / macrocell 13 |
| پن 16 | I/O14 — Bidirectional I/O / macrocell 14 |
| پن 17 | I/O15 — Bidirectional I/O / macrocell 15 |
| پن 18 | IN0 — Dedicated input 0 |
| پن 19 | IN1 — Dedicated input 1 |
| پن 20 | IN2 — Dedicated input 2 |
| پن 21 | IN3 — Dedicated input 3 |
| پن 22 | CLK — Global clock input |
| پن 23 | OE — Global output enable (active low) |
| پن 24 | VCC — +5 V supply |
عام استعمالات
EP610PI-25 کے لیے موزوں ہے 6 ایپلیکیشنs: Legacy 8086/68000 Bus Address Decoding, Industrial Control State Machines, Telecommunications Channel-Bank Control, Legacy Test & Measurement Instrumentation, Aerospace & Military Avionics Sustainment, Pin-Compatible PAL/GAL Array Consolidation.
Legacy 8086/68000 Bus Address Decoding
The EP610PI-25's 25 ns tPD and 16 macrocells make it ideal for legacy 8 MHz to 16 MHz microprocessor address-decoding and chip-select generation. In a typical 8086 system, the EPLD replaces four to six 74LS138/139/688 decoders by mapping the 20-bit address bus to chip enables for ROM, RAM, and I/O devices, reducing board area by ~60%. The 25 ns propagation delay easily fits within the 8 MHz 8086 memory-access window, while the ceramic DIP-24 (PI) package supports socketed replacement during board bring-up or field maintenance.
تجویز کردہ
Industrial Control State Machines
The EP610PI-25's per-macrocell D/T/JK/SR flip-flops and 16-macrocell capacity provide a clean implementation medium for industrial state machines controlling 8 to 16 outputs with 4 to 8 inputs. The industrial -40C to +85C operating range and DIP-24 through-hole footprint allow direct socketed insertion into PLC backplanes, motor-control boards, and process-instrumentation front-ends. The deterministic 25 ns tPD does not vary with routing density, simplifying worst-case timing analysis for safety-critical sequences such as conveyor interlocks and valve sequencing.
تجویز کردہ
Telecommunications Channel-Bank Control
The EP610PI-25 is well suited for telecom channel-bank control-logic applications where 5 V CMOS operation, industrial temperature range, and a 25 ns deterministic propagation delay satisfy channel-switch and signaling-rate requirements. The device replaces discrete 74HC logic implementing time-slot assignment, relay-driver control, and alarm-collection logic. Rochester Electronics' ongoing wafer-level manufacturing ensures multi-year supply continuity required by telecom operators maintaining T1/E1 infrastructure beyond standard end-of-life windows.
تجویز کردہ
Legacy Test & Measurement Instrumentation
The EP610PI-25's 5 V CMOS operation, 16 macrocells, and 25 ns deterministic delay are well matched to legacy bench-top oscilloscopes, logic analyzers, and protocol analyzers where it implements front-panel key-scan decoding, trigger conditioning, and timing-and-control glue between display drivers, ADC/DAC subsystems, and the main processor. The ceramic DIP-24 package allows socketed replacement during instrument calibration cycles, simplifying field service for equipment with 20+ year service lives.
تجویز کردہ
Aerospace & Military Avionics Sustainment
The EP610PI-25 and its military-grade counterpart EP610DM/883B support long-life aerospace and military avionics programs that must maintain form-fit-function compatibility with original equipment deployed in the 1980s and 1990s. The 24-pin ceramic DIP-24 (PI) footprint, industrial temperature range, and 25 ns tPD match the original Altera EP610 datasheet specifications exactly, allowing drop-in replacement on existing qualified boards without re-qualification. Rochester Electronics is the primary authorized source for these legacy military-grade EPLDs.
تجویز کردہ
Pin-Compatible PAL/GAL Array Consolidation
The EP610PI-25 is widely used to consolidate multiple 20-pin and 24-pin PAL/GAL devices into a single EPLD, simplifying PCB layout and reducing BOM count by 4x to 6x. The 16 macrocells map cleanly to four 16V8-equivalent devices or two 22V10-equivalent devices, with the 25 ns tPD matching typical bipolar PAL-20L8 and PAL-22V10 speed grades. Designers migrating from discrete PAL/GAL to EPLD benefit from reduced power consumption (~200 mW vs ~1.5 W total for bipolar PALs), single-device sourcing, and Rochester Electronics' long-term supply commitment.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا EP610PI-25 — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | EP610PC-25 | EP610DC-25 | EP610LC-25 |
|---|---|---|---|---|
| Brand | Rochester Electronics (legacy Altera) | Rochester Electronics (legacy Altera) | Rochester Electronics (legacy Altera) | Rochester Electronics (legacy Altera) |
| Package | 24-pin DIP (PI) ceramic | 24-pin DIP (PI) plastic - same | 24-pin DIP (PI) windowed ceramic - same | 24-pin DIP (PI) windowed LCC - same pin-out |
| Propagation Delay (tPD) | 25 ns | 25 ns | 25 ns | 25 ns |
| Macrocells | 16 | 16 | 16 | 16 |
| Usable Gates | ~300 gates | ~300 gates | ~300 gates | ~300 gates |
| Operating Temperature Range | Industrial -40C to +85C | Commercial 0C to +70C | Military -55C to +125C | Military -55C to +125C |
| Package Material | Ceramic DIP | Plastic DIP | Ceramic DIP, UV-windowed | Ceramic LCC, UV-windowed |
| UV Erasable (Field Reprogrammable) | No (one-time-programmable OTP variant) | No (OTP) | Yes (windowed) | Yes (windowed) |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V |
اہم امتیازی خصوصیات
- Industrial temperature grade in 24-pin ceramic DIP (بمقابلہEP610PC-25)
- Original Altera EP610 die with Rochester authorized sourcing (بمقابلہModern MAX II CPLDs (e.g., EPM240T100C5N))
- Deterministic 25 ns propagation delay independent of logic density (بمقابلہPAL20L8 / GAL22V10 bipolar devices)
ڈیزائن نوٹس
The EP610PI-25 operates from a single 5 V ±5% supply and typically draws ~30 mA quiescent plus dynamic current proportional to switching frequency. Decouple VCC (pin 24) with a 0.1 µF ceramic capacitor placed within 5 mm of the package, plus a 10 µF tantalum bulk capacitor on the supply rail. The CMOS UV-erasable architecture has high noise immunity but the global clock input (pin 22) should be routed away from high-current switching traces to avoid ground-bounce-induced false clocking.
The EP610PI-25 is the OTP (one-time-programmable) non-windowed variant - once programmed, it cannot be UV-erased. For prototyping or designs that may require field firmware updates, choose EP610DC-25 or EP610LC-25 (windowed ceramic packages). Always verify the JEDEC programming file matches the socketed pin orientation; the DIP-24 pin 1 marker is the standard counter-clockwise numbering from the top-left notch. Programming must use legacy Altera MAX+PLUS II or A+PLUS software with the original EP610 JEDEC fuse map.
At ~200 mW typical dissipation in a ceramic DIP-24 package (theta_JA ~50 C/W in still air), the EP610PI-25 junction-to-ambient temperature rise is approximately 10 C above ambient. This is well within the industrial -40C to +85C operating range with no heatsinking required. Estimated: Pdiss=200 mW, theta_JA=50 C/W, delta_T=10 C. For military-temp EP610DC-25 / EP610LC-25 variants deployed in sealed enclosures, confirm worst-case ambient plus 10 C junction rise stays within the -55C to +125C military spec.
تعمیل کی معلومات
EP610PI-25 is a 1980s-era Altera legacy EPLD; RoHS/REACH compliance status not explicitly documented in the available distributor data. For military/aerospace programs use EP610DM/883B (MIL-STD-883 qualified). Rochester Electronics is an authorized source for legacy Altera EPLDs and provides original-die equivalents.
