EPM3512ATC144 - MAX 3000A CPLD, 512 Macrocells, 144-Pin TQFP | Altera
N.º de pieza: EPM3512ATC144 ✗ Fin de vida| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $14.5 | $14,50 |
| 10 | $12.85 | $128,50 |
| 100 | $11.2 | $1.120,00 |
| 500 | $9.95 | $4.975,00 |
| 1.000 | $8.75 | $8.750,00 |
EPM3512ATC144 Descripción general
What is a CPLD? A Complex Programmable Logic Device is a non-volatile programmable logic IC that sits between simple PAL/GAL devices and large FPGAs in the digital logic hierarchy: programmable logic -> CPLD -> FPGA -> ASIC. CPLDs use a classic AND/OR PLA architecture with a global interconnect fabric, giving them deterministic pin-to-pin propagation delays (typically 5–10 ns) and instant-on behavior at power-up because the configuration is stored in on-chip EEPROM rather than loaded from an external boot flash.
Key features of the EPM3512ATC144 include 512 macrocells organized in 16 Logic Array Blocks (LABs) of 32 macrocells each, a maximum of 212 user I/O pins, 32 product terms per macrocell with expandable capability, and a maximum operating frequency of approximately 116 MHz. The device also supports open-drain output enables, programmable slew rate, and individual tri-state control on every I/O pin. MultiVolt I/O pins accept 2.5 V, 3.3 V, or 5 V signaling with proper configuration.
The MAX 3000A architecture uses a uniform interconnect matrix that routes every LAB to every other LAB through a single fast-track channel, eliminating routing bottlenecks and providing predictable, deterministic timing. Each macrocell contains a programmable AND/OR array followed by a flip-flop that can be configured as D, T, JK, or SR, allowing direct synthesis of complex state machines in a single device.
Typical applications include bus-interface bridging, address decoding for microprocessor systems, peripheral glue logic, power-on reset sequencing, LED/display multiplexing, and industrial control replacement of discrete 74-series logic. The instant-on behavior and non-volatile configuration make the EPM3512ATC144 particularly useful in safety-critical or deterministic-latency systems where an FPGA's boot time would be unacceptable.
Designers should note that the EPM3512ATC144 is part of a mature, NRND (Not Recommended for New Designs) family. New designs should evaluate MAX II, MAX V, or MAX 10 CPLDs from Intel/Altera, which provide lower static power, smaller packages, and JTAG ISP support. The TQFP-144 footprint, however, remains convenient for prototyping and legacy system upgrades.
This page synthesizes distributor pricing, drop-in same-family alternatives, lifecycle status, and practical design notes for the EPM3512ATC144 that are not consolidated in the original Altera datasheet.
Alternativas directas para EPM3512ATC144 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con EPM3512ATC144 (mismo factor de forma y huella) — difiere en Package, Usable Gates, Operating Temperature, Propagation Delay (tPD), RoHS Status.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
EPM3512ATC144-10N
✅ Sustitución directa✓ En stock
$18.75 / unidad
Ver hoja de datos →EPM3256ATC144-10
✅ Sustitución directa✓ En stock
$9.75 / unidad
Ver hoja de datos →EPM3256ATC144-10N
✅ Sustitución directa✓ En stock
$14.5 / unidad
Ver hoja de datos →EPM3256ATC144-7N
✅ Sustitución directa✓ En stock
$17.2 / unidad
Ver hoja de datos →EPM3256ATC144-7
✅ Sustitución directa✓ En stock
$17.06 / unidad
Ver hoja de datos →EPM3128ATC144-10
✅ Sustitución directa✓ En stock
$6.2 / unidad
Ver hoja de datos →EPM3512ATC144 Valores máximos y características eléctricas
| Family | MAX 3000A |
| Macrocells | 512 |
| Logic Array Blocks (LABs) | 16 |
| Maximum User I/O Pins | 212 |
| Encapsulado | TQFP-144 (20x20 mm) |
| Core Supply Voltage | 3.3 V |
| Programming Technology | EEPROM (in-system programmable) |
| JTAG Interface | IEEE Std. 1149.1 (4-pin) |
| Maximum Frequency | 116 MHz |
| Product Terms per Macrocell | 32 (expandable) |
| I/O Standards | LVTTL, LVCMOS, 2.5 V/3.3 V/5 V tolerant |
| Temperatura de funcionamiento | 0C to +70C (commercial) |
| Tipo de montaje | Surface Mount |
| Nivel MSL | 3 |
| Estado RoHS | Compliant (lead-free suffix variants available) |
Guía de configuración de pines de EPM3512ATC144 tqfp-144 (20x20 mm)
Configuración de pines para EPM3512ATC144 (encapsulado tqfp-144 (20x20 mm)). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para EPM3512ATC144.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
EPM3512ATC144 es adecuado para 6 aplicacións: Microprocessor Bus Interface Bridge, Address Decoding & Chip Select Generation, Power-On Reset & System Sequencing, Industrial Control Glue Logic Replacement, Legacy Peripheral Interface Adaptation, LED Display Multiplexing & Scanning.
Microprocessor Bus Interface Bridge
The EPM3512ATC144 is well suited as a bus-interface bridge between microprocessors, memory, and peripherals because its 512 macrocells and wide I/O complement (up to 100 user I/O on the TQFP-144 footprint) can absorb dozens of address-decoding, chip-select, and wait-state generation functions in a single non-volatile device. Compared with discrete 74-series glue logic, the CPLD shrinks a 4–6 chip decode/arbitration tree onto one part, reduces PCB area, and improves noise immunity through tighter signal matching. The deterministic tPD timing means address-to-CS latency is constant regardless of routing density - critical for synchronous buses where setup/hold margins are tight. Designers typically instantiate the CPLD between a 32-bit address bus and 8–12 peripheral chip-selects, using JTAG ISP for board-level reprogramming during development.
Recomendado
Address Decoding & Chip Select Generation
Address decoding for memory and peripheral maps is the canonical CPLD use case, and the EPM3512ATC144 handles full 32-bit address decoding plus chip-select steering for up to 16 banks without timing closure issues. The MAX 3000A AND/OR PLA architecture implements wide decode trees efficiently - one macrocell can absorb a 32-input AND term using the 32 product-term array plus parallel expanders. With ~10 ns pin-to-pin delay, the CPLD adds minimal address-to-CS latency, preserving memory access timing budgets. The non-volatile EEPROM configuration means the decoder is alive within microseconds of power-up, eliminating FPGA-style boot delays that would violate reset-to-access timing in many microcontrollers and DSPs.
Recomendado
Power-On Reset & System Sequencing
The EPM3512ATC144 is frequently deployed in multi-rail power-on-reset (POR) and power-supply sequencing circuits because its instant-on EEPROM configuration is alive within microseconds of VCC ramp - no FPGA boot flash, no configuration watchdog, no surprises. The 512 macrocells can model complex state machines for staggered rail enabling, fault latching, watchdog timer generation, and brown-out detection. The CPLD's 5 V-tolerant I/O allow direct interface to legacy supervisory circuits and reset supervisors. Compared with a microcontroller-based sequencer, the CPLD is deterministic, immune to firmware corruption, and immune to code-readback attacks - making it a strong fit for industrial, medical, and safety-critical sequencing logic.
Recomendado
Industrial Control Glue Logic Replacement
In industrial control designs, the EPM3512ATC144 typically replaces 6–12 discrete 74HC/74AHC logic gates (AND, OR, flip-flop, multiplexer, one-shot, encoder/decoder), consolidating them onto a single JTAG-programmable device. The 212-max-user-I/O count (subject to TQFP-144 pinout) supports 50+ signal paths in a typical PLC backplane interface, encoder-counter, or motor-control front-end. CPLD deterministic timing is critical in industrial applications where deterministic response to interrupts and safety inputs is required by IEC 61131-3 and similar standards. The wide 0–70C commercial temperature range and proven EEPROM process technology give long-term reliability in factory-floor environments.
Recomendado
Legacy Peripheral Interface Adaptation
The EPM3512ATC144 is often used as a parallel-bus to serial/legacy-bus adapter - for example, ISA bus to SPI/I2C bridges, or VME bus to modern memory-mapped peripherals - because the wide CPLD I/O count absorbs both legacy and modern bus interfaces in a single device. The 32-product-term macrocells efficiently implement bus-arbitration state machines, handshaking converters, and protocol-translation FSMs that would otherwise require a microcontroller plus glue logic. The non-volatile configuration means the adapter works at first power-on with no firmware boot, eliminating the legacy 'cold-start' failure mode common to MCU-based bridges.
Recomendado
LED Display Multiplexing & Scanning
Scanning LED matrix displays, seven-segment clusters, and dot-matrix signs is a strong fit for the EPM3512ATC144: the wide I/O count can drive 8–16 row/column pairs directly, the 116 MHz internal speed supports per-row PWM dimming at >1 kHz refresh without flicker, and the deterministic timing makes brightness uniform across all rows. CPLDs are preferred over MCUs for high-refresh LED drivers because no firmware interrupt latency perturbs the scan loop. The non-volatile configuration means the display controller is alive immediately at power-on, eliminating boot-up black flashes that hurt retail and signage applications.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para EPM3512ATC144 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | EPM3512ATC144-10N | EPM3256ATC144-10 | EPM3256ATC144-10N | EPM3256ATC144-7N | EPM3128ATC144-10 |
|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | Altera |
| Package | TQFP-144 | TQFP-144 (same) | TQFP-144 (same) | TQFP-144 (same) | TQFP-144 (same) | TQFP-144 (same) |
| Macrocells | 512 | 512 | 256 (-50%) | 256 (-50%) | 256 (-50%) | 128 (-75%) |
| Logic Array Blocks | 16 | 16 | 8 (-50%) | 8 (-50%) | 8 (-50%) | 4 (-75%) |
| Core Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Programming Technology | EEPROM (ISP) | EEPROM (ISP) | EEPROM (ISP) | EEPROM (ISP) | EEPROM (ISP) | EEPROM (ISP) |
| Speed Grade | Standard | -10N (10 ns tPD) | -10 | -10N (10 ns tPD) | -7N (faster tPD) | -10 |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | NRND |
Diferenciadores clave
- Highest logic density available in TQFP-144 MAX 3000A package (frente a EPM3256ATC144-10)
- Drop-in upgrade for EPM3256ATC144 designs needing more logic (frente a EPM3256ATC144-10N)
- Same TQFP-144 footprint as smaller EPM3128ATC144 with 4× capacity (frente a EPM3128ATC144-10)
Notas de diseño
Estimated: at fMAX = 116 MHz with 80% utilization across 512 macrocells, I/O toggling at 50 MHz, ICC_core is approximately 200–300 mA from a 3.3 V rail (≈ 0.7–1.0 W). Add 50–100 mA per heavily-loaded I/O bank. Provide a 0.1 µF ceramic decoupling cap adjacent to every VCC/VCCIO pin pair, plus a single 10 µF bulk tantalum or ceramic near the device. The MAX 3000A does not have a power-on-reset disable; the EEPROM configuration begins loading within ~1 µs of VCC crossing the POR threshold (~2.7 V).
TQFP-144 fine-pitch (0.5 mm) PCB layout requires careful escape routing and a 4-layer stack-up with continuous ground plane under the device for thermal dissipation and EMI suppression. Place the JTAG header within 50 mm of the CPLD to keep TCK/TMS/TDI/TDO traces short and impedance-controlled. Use guard traces around JTAG signals if the board has noisy switching converters nearby. Solder paste stencil aperture reduction to 80% on the TQFP-144 pads reduces tombstoning during reflow.
Critical: (1) Mixing 5 V inputs into a 3.3 V-only VCCIO bank will damage I/O cells - configure VCCIO per bank to match the highest voltage expected on that bank. (2) Do not assume all 212 user I/Os are bonded out on the TQFP-144 - the package typically exposes ~100 user I/O pins; check the pinout table before designing for high I/O count. (3) Unused I/O pins should be configured as outputs driving ground (not left floating) to minimize supply-current creep and noise injection. (4) The MAX 3000A JTAG chain must include proper TMS pull-up and TCK pull-down resistors per IEEE 1149.1 - omitted pull resistors cause chain instability.
Información de cumplimiento
RoHS compliant per Altera product page; lead-free finish available on suffix variants. Not AEC-Q100 qualified (commercial 0–70C only). Industrial-grade variant not offered in this package.
