EPM7256EGI192-15 - 256-Macrocell MAX 7000 CPLD 5V 192-CPGA
Référence : EPM7256EGI192-15 ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 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 Présentation
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.
Alternatives de remplacement direct pour EPM7256EGI192-15 — 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 EPM7256EGI192-15 (même facteur de forme et même empreinte) — différant par Maximum Operating Frequency, Mounting Type, RoHS Status, Supply Voltage (VCCINT), User I/O Pins.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
EPM7256EGC192-12
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$17.85 / unité
Voir la fiche technique →EPM7256EGC192-15
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
EPM7256EGC192-20
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
EPM7256EGI192-20
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
EPM7256EGI192-12
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
EPM7256EGI192-10
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
EPM7256EGI192-15 Valeurs maximales et caractéristiques électriques
| 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) |
| Boîtier | 192-pin CPGA (Ceramic Pin Grid Array) |
| Operating Temperature Grade | Industrial (-40C to +85C) |
| Statut RoHS | Non-compliant (ceramic CPGA, contains lead) |
| Type de montage | Through-Hole (Socket) |
Guide de configuration des broches du EPM7256EGI192-15 192-pin cpga (ceramic pin grid array)
Configuration des broches du EPM7256EGI192-15 (boîtier 192-pin cpga (ceramic pin grid array)). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour EPM7256EGI192-15.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
EPM7256EGI192-15 convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour EPM7256EGI192-15 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- 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)
Notes de conception
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.
Informations de conformité
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).
