EPM7128EQI100-15 - MAX 7000 CPLD, 128 Macrocells, 15ns | Altera/Intel
MPN: EPM7128EQI100-15 ✗ Cuối đờiEPM7128EQI100-15 Tóm tắt
A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like logic blocks on a single die with a centralized interconnect fabric. CPLDs sit in the hierarchy between simple SPLDs and larger FPGAs, offering deterministic, fast pin-to-pin timing with instant-on behavior because configuration is stored in on-chip EEPROM rather than SRAM. The MAX 7000 family uses an EEPROM-based architecture, which means the device retains its programmed logic across power cycles without an external boot PROM, a notable advantage over SRAM-based FPGAs in cost-sensitive and safety-critical designs.
Key features of the EPM7128EQI100-15 include 128 macrocells organized as 8 logic array blocks (LABs) of 16 macrocells each, a maximum operating frequency of approximately 76.9 MHz, programmable macrocell flip-flops, and a JTAG-compliant IEEE 1149.1 boundary-scan test interface. The "I" suffix in the part number denotes the industrial temperature grade of -40 °C to +85 °C, while the "E" designates the enhanced MAX 7000E variant. Each macrocell supports configurable clear, preset, clock, and output enable signals, allowing designers to implement combinatorial and registered logic in the same device.
Typical applications include bus decoding and address mapping in microprocessor systems, I/O expansion for legacy ASICs, glue logic between modern processors and peripherals, board-level control sequencers, and small state-machine implementations. The 15 ns propagation delay comfortably supports standard 33 MHz PCI bus cycles and most asynchronous logic interfaces in industrial control hardware.
When designing with this part, note that the EEPROM programming cycles are rated in the thousands, so the device is intended for prototyping or in-system updates rather than field-reprogrammable applications. Designers should also observe the 5 V VCC requirement and ensure decoupling complies with the Altera reference design to avoid noise-induced logic errors.
This page synthesizes distributor pricing, drop-in speed-grade and temperature-grade alternatives, and engineering notes not found in the bare datasheet, providing a single source for engineers selecting a 5 V MAX 7000 CPLD for production builds.
Bộ thay thế dễ dàng lắp đặt cho EPM7128EQI100-15 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với EPM7128EQI100-15 (cùng hình factor và footprint) — khác nhau ở Operating Temperature, Package, Usable Gates, Device Type, Logic Array Blocks (LABs).
EPM7128EQC100-20
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM7128EQC100-10
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM7128SQI100-10N
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM7128SQI100-15
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
EPM7096QI100-15
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →EPM7128EQI100-15 Tỷ lệ tối đa & tính chất điện
| Family | MAX 7000 |
| Device Type | CPLD - Complex Programmable Logic Device |
| Macrocells | 128 |
| Usable Gates | 2.5K |
| Logic Array Blocks (LABs) | 8 (16 macrocells each) |
| User I/O Pins | 84 |
| Pin-to-Pin Propagation Delay (tPD) | 15 ns |
| Maximum Operating Frequency | 76.9 MHz |
| Supply Voltage (VCCINT/VCCIO) | 4.75 V to 5.25 V (5 V nominal) |
| Nhiệt độ hoạt động | -40 °C to +85 °C (industrial grade, "I" suffix) |
| Hộp | 100-pin PQFP (BQFP, 14x20 mm) |
| Kiểu lắp đặt | Surface Mount |
| Programming Technology | EEPROM (non-volatile, in-system programmable) |
| Boundary Scan | IEEE 1149.1 (JTAG) compliant |
| Trạng thái RoHS | Compliant (lead-free; verify per lot) |
| Manufacturer | Altera (now Intel FPGA) |
Hướng dẫn cấu hình chân EPM7128EQI100-15 100-pin pqfp (bqfp, 14x20 mm)
Cấu hình chân cho EPM7128EQI100-15 (100-pin pqfp (bqfp, 14x20 mm) gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho EPM7128EQI100-15.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
EPM7128EQI100-15 phù hợp cho 6 Áp dụngs: Microprocessor Address Decoding and Glue Logic, PCI Bus Interface and Add-In Card Logic, Board-Level Power Sequencing and Reset Control, Legacy Industrial Control State Machines, Custom Peripheral Replacement for Obsolete 74-Series Logic, Telecom Backplane Bus Arbitration.
Microprocessor Address Decoding and Glue Logic
The EPM7128EQI100-15's 128 macrocells and 15 ns propagation delay make it ideal for decoding multiplexed address buses in 8-bit and 16-bit microprocessor systems. With 84 available I/O pins, the device can decode chip-select signals for up to 16 peripheral devices across 24-bit address spaces, replacing multiple 74LS138/139 decoder ICs with a single CPLD. The EEPROM-based programming retains the decoded logic across power cycles, which is essential for embedded controllers where the host CPU cannot boot a configuration PROM. The industrial -40 to +85 °C temperature range also supports factory automation and outdoor telecom equipment that must operate reliably across harsh thermal cycles.
Được đề xuất
PCI Bus Interface and Add-In Card Logic
The 15 ns propagation delay of the EPM7128EQI100-15 supports 33 MHz PCI bus cycles with comfortable timing margin for address/data steering and command decoding in legacy add-in cards. The device's 84 user I/Os accept the 32-bit multiplexed PCI address/data bus plus control signals, while four global clock inputs can be assigned to PCI CLK for synchronous state-machine implementations. Although newer designs use PCIe or larger FPGAs, the EPM7128EQI100-15 remains a cost-effective solution for maintaining legacy PCI-based industrial cards, medical instrumentation, and test equipment. Designers should add a series resistor on outputs to meet PCI signal integrity requirements.
Được đề xuất
Board-Level Power Sequencing and Reset Control
Power sequencing logic in multi-rail systems is implemented efficiently using the EPM7128EQI100-15 because each macrocell provides configurable clear, preset, clock, and output enable signals. A typical design uses one LAB to monitor four power-good inputs and produce staggered reset/Enable outputs for downstream regulators and ASICs. The 15 ns propagation delay ensures deterministic sequencing within 50 ns of the slowest rail, well inside typical 100 ms power-on ramp budgets. Industrial temperature operation (-40 to +85 °C) and 5 V I/O tolerance allow the device to interface directly with legacy supervisor ICs without level shifters.
Được đề xuất
Legacy Industrial Control State Machines
Deterministic, fast state machines are a core use case for the EPM7128EQI100-15 in PLC-style industrial controllers, motor drives, and process control hardware. The device supports 16-state Mealy or Moore machines per LAB, with registered macrocell outputs providing glitch-free transitions that are essential for safety-related logic. The non-volatile EEPROM architecture means the controller boots into the correct state immediately on power-up, eliminating the FPGA configuration delay that complicates safety logic. Industrial -40 to +85 °C operation also matches factory-floor environmental specifications without additional thermal management.
Được đề xuất
Custom Peripheral Replacement for Obsolete 74-Series Logic
Engineers use the EPM7128EQI100-15 to consolidate multiple discrete 74LS/74HC glue-logic ICs onto a single programmable device, simplifying PCB layout and reducing component count. A typical consolidation replaces 5-10 standard-logic packages (latches, muxes, decoders, flip-flops) with one CPLD, freeing board space and improving reliability through fewer solder joints. The 84 user I/Os accommodate 10-15 equivalent 16-pin logic functions per device, and the 5 V VCCIO matches the legacy TTL/CMOS signaling directly without translators. Design teams use MAX+PLUS II schematics or VHDL/Verilog entry to capture the original logic exactly.
Được đề xuất
Telecom Backplane Bus Arbitration
Backplane bus arbiters in legacy telecom shelves leverage the EPM7128EQI100-15 for fast, deterministic arbitration across 8-16 line card slots. The 15 ns propagation delay supports 33 MHz backplane operation, and the 84 I/Os accommodate parallel request/grant buses plus interrupt and status signals. EEPROM programming ensures that arbitration logic survives card hot-swap events and shelf power cycles without manual reconfiguration. Industrial temperature operation is required for outside-plant equipment and central-office environments with elevated ambient temperatures near heat-generating line cards.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho EPM7128EQI100-15 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | EPM7128EQC100-20 | EPM7128EQC100-10 | EPM7128SQI100-10N | EPM7128SQI100-15 | EPM7096QI100-15 |
|---|---|---|---|---|---|---|
| Package | PQFP-100 (BQFP, 14x20 mm) | PQFP-100 - same | PQFP-100 - same | PQFP-100 - same | PQFP-100 - same | PQFP-100 - same |
| Brand | Altera / Intel FPGA | Altera / Intel FPGA - same | Altera / Intel FPGA - same | Altera / Intel FPGA - same | Altera / Intel FPGA - same | Altera / Intel FPGA - same |
| Macrocells | 128 | 128 | 128 | 128 | 128 | 96 (-25%) |
| Family / Sub-series | MAX 7000E | MAX 7000E | MAX 7000E | MAX 7000S (adds JTAG BST) | MAX 7000S (adds JTAG BST) | MAX 7000E |
| Pin-to-Pin Delay (tPD) | 15 ns | 20 ns (+33%) | 10 ns (-33%) | 10 ns (-33%) | 15 ns (identical) | 15 ns (identical) |
| Temperature Grade | Industrial -40 to +85 °C | Commercial 0 to +70 °C | Commercial 0 to +70 °C | Industrial -40 to +85 °C | Industrial -40 to +85 °C | Industrial -40 to +85 °C |
| Supply Voltage | 4.75 V to 5.25 V (5 V) | 4.75 V to 5.25 V - same | 4.75 V to 5.25 V - same | 4.75 V to 5.25 V - same | 4.75 V to 5.25 V - same | 4.75 V to 5.25 V - same |
| Lifecycle Status | Obsolete (last-time-buy) | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Bảo phân biệt quan trọng
- Industrial temperature grade in MAX 7000E series with 15 ns delay (vsEPM7128EQC100-20)
- MAX 7000E base architecture with 128 macrocells (vsEPM7096QI100-15)
- EEPROM non-volatile configuration (vsMAX II EPM240 CPLD)
Ghi chú thiết kế
The EPM7128EQI100-15 requires a tightly regulated 5 V supply between 4.75 V and 5.25 V for both core and I/O. Place a 100 uF bulk capacitor near the PQFP VCC pins and add 0.1 uF ceramic decoupling on every VCC/GND pair within 5 mm of the package. Voltage dips below 4.75 V during EEPROM programming can corrupt the bitstream and cause in-field failures. Power-rail sequencing is generally not required, but the JTAG controller and core logic share VCC, so a clean supply is essential for reliable boundary-scan testing.
The 100-pin PQFP package has 0.65 mm pitch leads that require careful PCB footprint design per IPC-7351. Use a copper pad length of 1.9 mm with 0.4 mm solder mask expansion to ensure reliable solder fillets, and avoid via-in-pad unless the via is tented and plated shut. Route high-speed output signals on inner layers with continuous ground reference to control impedance around 50 ohms, and place a ground pour directly under the PQFP body to reduce lead inductance. Thermal performance is adequate at industrial temperatures without a heatsink because the typical ICC is under 200 mA at 5 V.
Do not assume all EPM7128 EQ variants are pin-compatible across temperature grades: the "I" suffix (industrial -40 to +85 °C) and "C" suffix (commercial 0 to +70 °C) share the same die and pinout but are graded differently at test. Mixing grades in a production lot can cause field failures when commercial-grade parts are inadvertently soldered into industrial-spec assemblies. Always verify the date code and suffix on the reel label, and require distributors to provide a Certificate of Compliance stating the exact temperature grade. Also note that the MAX 7000E EEPROM is rated for only 100 program/erase cycles - design for one-time factory programming plus occasional in-system updates, not frequent reconfigurations.
When using the EPM7128EQI100-15 as a bus driver in 33 MHz PCI or backplane applications, add 22-33 ohm series resistors on each high-fanout output to dampen ringing caused by the CPLD's 5 ns rise time into capacitive loads. The 84 user I/Os are arranged in banks; assign high-speed synchronous signals to I/O pins that share a common VCCIO to avoid skew across banks. The global clear and four global clock pins should be reserved for signals that genuinely need low skew, because they bypass the LAB interconnect fabric. Always simulate worst-case timing in MAX+PLUS II or Quartus II before committing to layout.
Thông tin tuân thủ
RoHS and lead-free per Altera/Intel product declaration for industrial-grade lot. Halogen-free status not explicitly published in available distributor data. AEC-Q100 not applicable because the MAX 7000E family is not automotive-qualified.
