EPM3128ATC100-7N - MAX 3000A 128-Macrocell CPLD, 7.5 ns, TQFP-100 | Intel (Altera)
N.º da peça: EPM3128ATC100-7N ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $5.87 | $5,87 |
| 10 | $5.29 | $52,90 |
| 100 | $4.7 | $470,00 |
| 500 | $4.11 | $2.055,00 |
| 1.000 | $3.52 | $3.520,00 |
EPM3128ATC100-7N Visão geral
A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like logic blocks with a programmable interconnect matrix, providing deterministic, instant-on glue logic and I/O expansion. Within the programmable-logic taxonomy, CPLDs sit alongside FPGAs as the highest-density members of the programmable-logic hierarchy, but they excel at predictable timing, fast input-to-output propagation, and operation without external configuration memory - features that make them ideal for bus interfacing, address decoding, and control logic.
Key features include 3.3-V core operation with MultiVolt I/O supporting 5.0-V, 3.3-V, and 2.5-V logic levels, in-system programmability (ISP) through the IEEE 1532 / JTAG interface, and a 4.5-ns pin-to-pin delay available on faster speed grades. The device offers four dedicated inputs and a global clear capability, and its non-volatile EEPROM cells retain configuration without a boot PROM.
Architecturally, the EPM3128ATC100-7N implements 128 macrocells organized into Logic Array Blocks (LABs) with a programmable AND/OR array and product-term allocation. The MAX 3000A family shares a common architecture with MAX 7000/7000AE devices, which simplifies design migration through Altera's legacy MAX+PLUS II and Quartus II toolchains.
Typical applications include address decoding and bus interfacing in microcontroller and DSP systems, glue-logic consolidation in industrial controllers, peripheral I/O expansion, and legacy system modernization where instant-on deterministic logic is required. Designers also deploy it in PCI bus interface glue logic, motor-control feedback conditioning, and discrete-logic replacement on legacy boards.
When designing with this device, ensure 3.3-V core supply stability with adequate bulk decoupling near the TQFP-100 power pins. Verify that I/O bank voltage rails match the driven/received logic levels (5.0-V tolerant I/O on a 3.3-V VCCIO is supported, but not vice versa). For new designs, consider MAX II or MAX V devices for lower power and migration continuity.
This page synthesizes distributor pricing, drop-in alternatives from the Site MPN list, and practical design notes not found in the manufacturer datasheet alone, giving procurement and engineering teams a single decision-grade reference.
Alternativas drop-in para EPM3128ATC100-7N — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com EPM3128ATC100-7N (mesmo formato e footprint) — diferindo em Package, Operating Temperature, Propagation Delay (tPD), Usable Gates, Configuration Memory.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
EPM3128ATC100-7
✓ Em estoque
$9.2 / unidade
Ver ficha técnica →EPM3128ATC100-5N
✓ Em estoque
$8.2 / unidade
Ver ficha técnica →EPM3128ATC100-10N
✓ Em estoque
$5.2 / unidade
Ver ficha técnica →EPM3128ATC100-10
✓ Em estoque
$8.1 / unidade
Ver ficha técnica →EPM3128ATC100-5
✓ Em estoque
$15.43 / unidade
Ver ficha técnica →EPM3128ATC100-7N Classificações máximas e características elétricas
| Family | MAX 3000A |
| Macro Cells | 128 |
| Usable Gates | Up to 10,000 |
| Number of I/Os | 80 |
| Propagation Delay (tPD) | 7.5 ns |
| Counter Frequency (max) | 227.3 MHz |
| Supply Voltage - Core | 3.3 V |
| I/O Interface Levels | 5.0 V / 3.3 V / 2.5 V (MultiVolt I/O) |
| In-System Programmability | Yes (IEEE 1532 / JTAG) |
| Program Memory Type | EEPROM (non-volatile) |
| Temperatura de operação | 0C to +70C (Commercial) |
| Encapsulamento | TQFP-100 (100-pin TQFP, fine-line BGA-256 noted in third-party listings) |
| Tipo de montagem | Surface Mount |
| Logic Family | CMOS |
| Speed Grade | -7 |
Guia de Configuração de Pinos do EPM3128ATC100-7N tqfp-100 (100-pin tqfp, fine-line bga-256 noted in third-party listings)
Configuração de pinos para EPM3128ATC100-7N (pacote tqfp-100 (100-pin tqfp, fine-line bga-256 noted in third-party listings)). Este CI digital inclui GPIO, interfaces de comunicação (UART, SPI, I2C) e pinos de alimentação. Consulte o datasheet do fabricante para funções alternativas dos pinos e opções de configuração. Essencial para projeto de sistemas embarcados e layout de PCB.
Nenhum dado detalhado de pinagem disponível para EPM3128ATC100-7N.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
EPM3128ATC100-7N é adequado para 6 aplicaçãos: Microcontroller Address / Bus Decode, Glue-Logic Consolidation on Legacy Boards, PCI / ISA Peripheral Interface Logic, Industrial Control / PLC I/O Expansion, Motor Control Feedback and PWM Steering, Legacy System Repair / Replacement Stocking.
Microcontroller Address / Bus Decode
The EPM3128ATC100-7N is widely deployed for address decoding, chip-select generation, and bus-interfacing logic between microcontrollers, DSPs, and peripheral banks. With 128 macrocells and 80 user I/Os, it can decode wide address buses and generate timing-controlled chip selects that offload these tasks from the host CPU, freeing it for application code. The 7.5-ns tPD and 227.3-MHz counter frequency keep decode latency well below a single memory-access cycle, while the EEPROM-based non-volatile configuration eliminates boot-PROM complexity - the device is live within microseconds of power-up, which is essential for deterministic startup in industrial and embedded-control systems.
Recomendado
Glue-Logic Consolidation on Legacy Boards
Designers use the EPM3128ATC100-7N to replace dozens of 74-series TTL/CMOS discrete logic ICs with a single programmable device, reducing board area, power, and BOM count. Each of its 128 macrocells can implement equivalent sum-of-products logic, and the MAX architecture's product-term allocator automatically shares terms across multiple outputs. The MultiVolt I/O interface (5.0 V / 3.3 V / 2.5 V) lets the EPM3128ATC100-7N sit between legacy 5-V peripherals and modern 3.3-V cores without level shifters. In-system programmability via JTAG (IEEE 1532) enables on-board rework and design-iteration without removing the part, which is invaluable during legacy board bring-up and field upgrades.
Recomendado
PCI / ISA Peripheral Interface Logic
The EPM3128ATC100-7N is a recognized solution for PCI and ISA peripheral interface glue logic, generating command, byte-enable, and parity signals to bridge a host bus to peripherals. Its 80 user I/Os comfortably route a full 32-bit PCI data/address bus plus control lines, while the 7.5-ns tPD supports 33-MHz PCI timing budgets (30 ns cycle). MultiVolt I/O allows the CPLD core to run on 3.3 V while directly driving 5-V PCI signals when required. Non-volatile EEPROM configuration means the part is operational immediately after power-up - critical for PCI bus enumeration that expects peripherals to be ready before host firmware scan begins.
Recomendado
Industrial Control / PLC I/O Expansion
In industrial controllers and PLCs, the EPM3128ATC100-7N serves as deterministic state-machine glue logic that orchestrates input debouncing, output sequencing, and interlock conditions. The device's deterministic tPD removes any timing jitter that microcontrollers introduce through software loops, and its EEPROM-based instant-on behavior supports fail-safe startup in safety-relevant circuits. With 80 I/Os, the CPLD can manage dozens of optocoupler-isolated inputs and relay-driver outputs while implementing watchdog and fault-handling state machines. The 0C to +70C commercial temperature range suits cabinet-mounted equipment; for extended-temperature environments, MAX II industrial-grade variants are recommended.
Recomendado
Motor Control Feedback and PWM Steering
Motor-drive boards use the EPM3128ATC100-7N to handle encoder feedback capture, Hall-sensor decoding, and PWM steering logic between a DSP/MCU controller and the power stage. The CPLD's high counter frequencies (up to 227.3 MHz) allow precise quadrature-encoder counting at high motor RPM, while the deterministic propagation delay enables dead-time insertion and shoot-through protection in three-phase inverter logic. MultiVolt I/O lets the CPLD directly interface 5-V Hall sensors and 3.3-V DSP GPIOs from the same device, removing level shifters from the BOM. With 128 macrocells, it can simultaneously process feedback and generate commutation timing for multi-axis drives.
Recomendado
Legacy System Repair / Replacement Stocking
Because the EPM3128ATC100-7N is NRNR (Not Recommended for New Designs) as of 2026-09-12, repair shops and field-service engineers stock the part alongside -5, -7, and -10 speed grades for legacy board repairs. The TQFP-100 fine-line footprint requires careful rework: a hot-air station with appropriate nozzle and pre-heated board is essential to avoid lifted pads on multi-layer boards. Stocking both N and non-N finish variants ensures coverage of boards built under different RoHS regimes, and having the -10 grade available allows substitution on boards whose timing margins are relaxed.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para EPM3128ATC100-7N — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | EPM3128ATC100-7 | EPM3128ATC100-5N | EPM3128ATC100-10N | EPM3128ATC100-10 | EPM3128ATC100-5 |
|---|---|---|---|---|---|---|
| Brand | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) |
| Package | TQFP-100 | TQFP-100 - same | TQFP-100 - same | TQFP-100 - same | TQFP-100 - same | TQFP-100 - same |
| Family | MAX 3000A | MAX 3000A | MAX 3000A | MAX 3000A | MAX 3000A | MAX 3000A |
| Macro Cells | 128 | 128 | 128 | 128 | 128 | 128 |
| User I/Os | 80 | 80 | 80 | 80 | 80 | 80 |
| Propagation Delay (tPD) | 7.5 ns | 7.5 ns | 4.5 ns (faster) | 10 ns (slower) | 10 ns (slower) | 4.5 ns (faster) |
| Supply Voltage (Core) | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Lead-Free / RoHS Finish | Yes (N suffix) | No (non-N suffix) | Yes (N suffix) | Yes (N suffix) | No (non-N suffix) | No (non-N suffix) |
| Operating Temperature | 0C to +70C (Commercial) | 0C to +70C | 0C to +70C | 0C to +70C | 0C to +70C | 0C to +70C |
Principais diferenciais
- Balanced 7.5-ns speed grade with full MAX 3000A density (vs EPM3128ATC100-10N)
- RoHS-compliant Pb-free terminal finish (N suffix) (vs EPM3128ATC100-7)
- Lower-density alternatives (EPM3064) are NOT drop-in for this part (vs EPM3064ATC100-10N)
Notas de projeto
Decouple the EPM3128ATC100-7N core VCC (3.3 V) and each VCCIO bank with 100 nF ceramic capacitors placed within 5 mm of the package pin, plus a 10 uF tantalum bulk capacitor per supply rail. The MultiVolt I/O banks may be powered independently of the core, allowing 5.0-V-tolerant I/O operation while the core runs at 3.3 V; route separate VCCIO planes for mixed-voltage systems and stitch ground returns directly under the TQFP-100 thermal pad region.
Estimated: at typical CMOS CPLD core currents under 100 mA across 3.3 V, power dissipation is well below 1 W and the TQFP-100 package requires no special heatsinking. Ensure the surrounding copper pour on inner PCB layers provides a low-impedance thermal path; in enclosed industrial enclosures with ambient temperatures above 60C, derate I/O drive strength in Quartus settings to reduce on-chip dissipation.
Route JTAG signals (TCK, TMS, TDI, TDO) on an inner layer with a ground shield for noise immunity, and place a 10 kohm pull-up on TCK per IEEE 1532 recommendations. Keep the TQFP-100 fine-line-pitch traces (0.5 mm typical) short to avoid signal integrity issues, and use microvia-in-pad construction if BGA fan-out from the same PCB is present. Verify the TCK rise time stays below 50 ns to match the ByteBlaster / USB-Blaster specification.
Do not assume 5.0-V tolerance on every pin: only the MultiVolt I/O banks tolerate 5.0 V inputs; driving 5 V into a VCCIO bank powered at 2.5 V will damage the device. When migrating from a MAX 7000 design, re-validate timing because MAX 3000A uses a different interconnect matrix. Finally, avoid leaving unused macrocell pins floating - configure them as outputs driving low or as inputs with the internal weak pull-up enabled to prevent oscillation.
Informações de conformidade
N suffix indicates Pb-free/RoHS-compliant terminal finish per Altera naming convention. REACH, halogen-free, and conflict-mineral declarations not located in the verified web data and marked unknown.
