EPM7256EGI192-15 - 256-Macrocell MAX 7000 CPLD 5V 192-CPGA
Teilenummer: EPM7256EGI192-15 ✗ Abgekündigt| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $78.5 | $78,50 |
| 10 | $72 | $720,00 |
| 25 | $66.5 | $1.662,50 |
| 100 | $58 | $5.800,00 |
| 250 | $52 | $13.000,00 |
EPM7256EGI192-15 Übersicht
What is a CPLD? A Complex Programmable Logic Device is a non-volatile programmable logic device that sits between simple PAL/GAL devices and high-density FPGAs. It is built from multiple SPLD-style macrocell blocks interconnected by a programmable switch matrix (PIA), giving it predictable timing, deterministic propagation delays, and instant-on behavior from internal EEPROM configuration memory. CPLDs are widely used for address decoding, bus interfacing, state-machine control, and peripheral glue logic where fast, deterministic response and unlimited in-system reprogrammability matter more than raw logic density.
Key features of the EPM7256EGI192-15 include: 256 macrocells across 16 LABs, 5,000 usable gates, 15 ns tPD (pin-to-pin), 76.9 MHz fCNT, 192 user I/O pins, 12 dedicated input pins, 5 V in-system programmability via JTAG (IEEE Std 1149.1), and programmable power-saving modes that reduce standby current on unused macrocells. Each macrocell contains a programmable AND/OR array with a flip-flop, allowing registered or combinatorial logic with individually programmable clear, preset, and clock options.
Architecturally, the EPM7256EGI192-15 uses Altera's classic MAX 7000E second-generation architecture with enhanced interconnect (the PIA) and per-macrocell EEPROM configuration bits. The 192-CPGA package supports military and industrial temperature grades (the "I" suffix) and provides robust thermal performance for high-reliability embedded systems. The device is supported by Altera's classic MAX+PLUS II and Quartus design flows (legacy support).
Typical applications include high-density address decoding in 32-bit/64-bit microprocessor systems, PCI bus interface glue logic, peripheral controllers (UART, DMA, memory controllers), industrial control state machines, and military/aerospace systems requiring radiation-tolerant ceramic-packaged logic. The 5 V core and 5 V tolerant I/Os also make it attractive as a direct replacement for legacy TTL/CMOS 74-series logic in board redesigns.
When designing with the EPM7256EGI192-15, observe the 5 V supply requirement carefully - this part is not 3.3 V tolerant on its VCCIO pins. Provide bulk decoupling close to the 192-CPGA socket, and budget for the 16 LAB power pins. The ceramic CPGA package is through-hole and socketed; confirm socket availability before committing the layout.
This page synthesizes distributor pricing, drop-in same-family alternatives, and design considerations not found in a single source.
Drop-in-Alternativen für EPM7256EGI192-15 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit EPM7256EGI192-15 (gleiche Bauform und Footprint) – abweichend in Maximum Operating Frequency, Mounting Type, RoHS Status, Supply Voltage (VCCINT), User I/O Pins.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
EPM7256EGC192-12
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$17.85 / Stück
Datenblatt ansehen →EPM7256EGC192-15
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
EPM7256EGC192-20
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
EPM7256EGI192-20
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
EPM7256EGI192-12
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
EPM7256EGI192-10
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
EPM7256EGI192-15 Grenzwerte & elektrische Eigenschaften
| Family | MAX 7000 |
| Series | MAX 7000E |
| Macro Cells | 256 |
| Usable Gates | 5,000 |
| Logic Array Blocks (LABs) | 16 |
| Maximum Operating Frequency | 76.9 MHz |
| Pin-to-Pin Delay (tPD) | 15 ns |
| Supply Voltage (VCCINT) | 5 V |
| User I/O Pins | 192 |
| Dedicated Input Pins | 12 |
| Programmable Power Mode | Yes (per-macrocell) |
| In-System Programmability | Yes (IEEE 1149.1 JTAG) |
| Configuration Memory | EEPROM (non-volatile) |
| Gehäuse | 192-pin CPGA (Ceramic Pin Grid Array) |
| Operating Temperature Grade | Industrial (-40C to +85C) |
| RoHS-Status | Non-compliant (ceramic CPGA, contains lead) |
| Montageart | Through-Hole (Socket) |
EPM7256EGI192-15 192-pin cpga (ceramic pin grid array) Pinbelegungsleitfaden
Pinbelegung für EPM7256EGI192-15 (192-pin cpga (ceramic pin grid array)-Gehäuse). Dieser digitale IC umfasst GPIO, Kommunikationsschnittstellen (UART, SPI, I2C) und Versorgungspins. Alternative Pin-Funktionen und Konfigurationsoptionen entnehmen Sie dem Herstellerdatenblatt. Unverzichtbar für Embedded-System-Design und PCB-Layout.
Keine detaillierten Pinbelegungsdaten verfügbar für EPM7256EGI192-15.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
EPM7256EGI192-15 ist geeignet für 6 Anwendungs: High-Density Address Decoding for 32/64-bit Microprocessor Systems, PCI / ISA Bus Interface Glue Logic, Peripheral Controllers (UART, DMA, Memory Controller Glue), Industrial Control State Machines, Military / Aerospace Legacy Logic Replacement, Legacy 74-Series TTL/CMOS Logic Board Redesign.
High-Density Address Decoding for 32/64-bit Microprocessor Systems
The EPM7256EGI192-15 is well suited to 32-bit and 64-bit address decoding in legacy microprocessor and embedded systems. With 256 macrocells (5,000 usable gates) and 192 user I/O pins, it can replace multiple 74-series TTL/CMOS decoder packages by integrating chip-select, interrupt-acknowledge, and memory-mapped peripheral decode in a single device. Its 15 ns pin-to-pin delay keeps decode skew under one clock period of a 50 MHz processor, while its 5 V supply matches TTL/CMOS logic levels without level shifters. Designers place the CPLD between the CPU and the address bus, programming product-term equations per macrocell; this reduces board area, BOM cost, and improves timing margins versus discrete glue logic.
Empfohlen
PCI / ISA Bus Interface Glue Logic
The EPM7256EGI192-15 excels as a 5 V PCI or ISA bus interface bridge, where deterministic timing and high I/O count are essential. With 192 I/O pins, designers can implement 32-bit data buses, command/byte-enable decoders, interrupt controllers, and wait-state generators in one device. Its 15 ns tPD and 76.9 MHz fCNT comfortably cover 33 MHz PCI clock cycles, and the 5 V VCCINT lets it talk directly to PCI/ISA peripherals without voltage translation. The non-volatile EEPROM configuration also ensures instant-on operation on power-up, eliminating the FPGA-style load time that would otherwise complicate legacy PC architectures.
Empfohlen
Peripheral Controllers (UART, DMA, Memory Controller Glue)
For integrating legacy peripheral controllers, the EPM7256EGI192-15 provides the deterministic 15 ns logic delays required for DMA handshakes, UART baud-clock generation, and memory-controller state machines. With 256 macrocells it absorbs chip-select logic, wait-state insertion, and bus-arbitration schemes that previously required several PAL/GAL devices, lowering power draw and improving noise immunity. The industrial temperature range (-40C to +85C) and ceramic CPGA package suit it to factory-floor controllers and outdoor cabinets, while JTAG-based ISP allows in-field firmware updates without removing the device from its socket.
Empfohlen
Industrial Control State Machines
The EPM7256EGI192-15's 256 macrocells and 5,000 gates are well matched to multi-state industrial control sequencers - ladder-logic replacements, motor-drive state machines, and safety-interlock controllers. Each macrocell provides a programmable flip-flop with independent clear/preset/clock controls, simplifying implementation of Mealy/Moore FSMs in deterministic, single-clock-per-state architectures. The industrial -40C to +85C temperature grade and 5 V I/O tolerance make it drop-in compatible with legacy 24 V PLC backplanes (after isolation), and the 192-CPGA package withstands vibration better than plastic QFPs in factory equipment.
Empfohlen
Military / Aerospace Legacy Logic Replacement
The 192-pin ceramic CPGA package and industrial temperature grade make the EPM7256EGI192-15 one of the few remaining non-FPGA programmable-logic options for military and aerospace OEMs maintaining fielded systems. With 256 macrocells and 5,000 gates, it can replace entire boards of 54-series logic, saving weight and improving reliability. The non-volatile EEPROM configuration ensures instant-on operation after power interruption, critical for avionics and weapons-platform safety systems. Designers must, however, verify lot acceptance testing and hermeticity per MIL-STD-883 because the part is obsolete.
Empfohlen
Legacy 74-Series TTL/CMOS Logic Board Redesign
When modernising a legacy 5 V logic board built from dozens of 74LS/74HC/74F TTL packages, the EPM7256EGI192-15 offers a single-chip consolidation path. With 256 macrocells and 192 I/O pins, it absorbs typical 20-30 chip glue-logic designs into one ceramic CPGA, simplifying layout, reducing power consumption, and improving noise margins. The 15 ns tPD matches 74F/74AS-speed grades, while the 76.9 MHz fCNT covers most legacy microprocessor clocks. Designers recompile existing TTL schematics in MAX+PLUS II or Quartus, producing an AHDL/Verilog/VHDL image that programs via JTAG.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für EPM7256EGI192-15 – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | EPM7256EGC192-12 | EPM7256EGC192-15 | EPM7256EGC192-20 | EPM7256EGI192-20 | EPM7256EGI192-12 | EPM7256EGI192-10 |
|---|---|---|---|---|---|---|---|
| Package | 192-pin CPGA | 192-pin CPGA - same | 192-pin CPGA - same | 192-pin CPGA - same | 192-pin CPGA - same | 192-pin CPGA - same | 192-pin CPGA - same |
| Brand | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) |
| Macro Cells | 256 | 256 | 256 | 256 | 256 | 256 | 256 |
| Pin-to-Pin Delay (tPD) | 15 ns | 12 ns | 15 ns | 20 ns | 20 ns | 12 ns | 10 ns |
| Temperature Grade | Industrial (-40C to +85C) | Commercial (0C to +70C) | Commercial (0C to +70C) | Commercial (0C to +70C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| In-System Programmability | JTAG (IEEE 1149.1) | JTAG (IEEE 1149.1) | JTAG (IEEE 1149.1) | JTAG (IEEE 1149.1) | JTAG (IEEE 1149.1) | JTAG (IEEE 1149.1) | JTAG (IEEE 1149.1) |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Wichtigste Unterscheidungsmerkmale
- Industrial temperature grade in 192-CPGA ceramic (vs. EPM7256EGC192-15)
- 15 ns tPD balances speed and availability (vs. EPM7256EGI192-10)
- Faster speed grade than the EGC192-20 baseline (vs. EPM7256EGC192-20)
Designhinweise
Estimated: the EPM7256EGI192-15 draws roughly 200-400 mA from its 5 V VCCINT supply depending on switching activity, with quiescent current around 50 mA for an idle 256-macrocell design. Each of the 16 LABs requires its own VCC and GND pin on the 192-CPGA - provide at least one 0.1 uF decoupling capacitor per LAB power pin placed within 5 mm of the package, plus 10 uF bulk capacitors at each corner of the socket. The I/O banks share VCCIO at 5 V, so a single 10 uF + 0.1 uF pair per socket corner is typically sufficient. Total decoupling budget: 20 x 0.1 uF ceramic + 4 x 10 uF tantalum/ceramic.
Estimated: the 192-CPGA ceramic package has a theta_JA around 20 C/W in still air (versus 30-40 C/W for plastic equivalents), but the through-hole pin grid dissipates heat primarily through the socket pins and internal plated-through-hole vias on the PCB. In a high-switching-rate 256-macrocell design, expect 1-2 W internal dissipation; at 25 C ambient this yields a junction temperature of 45-65 C, well below the 150 C maximum. For military/aerospace qualification testing, perform a delta-T measurement under worst-case vector to validate thermal margins.
The 192-CPGA uses a 2.54 mm (0.100 in) pin pitch on a 14 x 14 pin grid (with depopulated rows/columns yielding 192 active pins). The mating socket must be a high-reliability pin-grid socket (e.g. 3M Textool or equivalent) rated for 100+ insertion cycles if field-upgradeable, or a low-cost machined-pin socket for production. Place a 1.0 mm-wide ground ring around the socket on the top layer, stitch the inner layers with a 5 mm-pitch via fence, and route all I/O signals on the top/bottom layers only to avoid via stubs under the CPGA. The JTAG chain (TDI, TDO, TMS, TCK) should be routed with 50 ohm-controlled impedance and a 10 kohm pull-up on TCK to prevent spurious programming.
Do NOT attempt to drive 3.3 V peripherals directly with the EPM7256EGI192-15's 5 V I/O - VCCIO must equal VCCINT at 5 V for TTL compatibility. Use a level translator (74LVC245, SN74LVTH245) if you must interface with 3.3 V logic. Also note that all 192 I/O pins default to inputs with weak pull-ups after JTAG programming; configure unused I/Os as outputs driving ground to minimise power and crosstalk. Finally, the EPM7256EGI192-15 is obsolete (per the Verified Web Data as of 2026-09-13): for new designs use MAX II (EPM570) or MAX V (5M160ZE100) CPLDs with 1.8 V/3.3 V support.
The MAX 7000E PIA (Programmable Interconnect Array) introduces ~5-8 ns additional delay on signals crossing LAB boundaries, which must be budgeted into the 15 ns tPD. Use the Altera MAX+PLUS II timing analyzer (legacy) or Quartus Prime TimeQuest to verify worst-case paths. For designs with bus widths greater than 32 bits, distribute the loads evenly across the four I/O banks to minimise simultaneous-switching noise (SSN), which can inject 0.5-1.0 V of ground bounce on a 5 V supply. Series-damping resistors (22-33 ohm) on clock and high-speed output pins help reduce SSN-induced jitter.
Compliance-Informationen
Ceramic CPGA package typically contains lead-bearing ceramic body or solder columns; per distributor description (EPM7256EGI192-15-ND) the part is not RoHS-compliant. Not AEC-Q100 (CPLD, not an automotive analog IC).
