EPM3512AQI208-7N - MAX 3000A CPLD 512 Macrocells 116.3MHz | Intel
料号： EPM3512AQI208-7N ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $28.5 | $28.50 |
| 10 | $25.65 | $256.50 |
| 100 | $22.8 | $2,280.00 |
| 500 | $20.52 | $10,260.00 |
| 1,000 | $18.45 | $18,450.00 |
EPM3512AQI208-7N 概述
A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like macrocell blocks on a single chip with a programmable interconnect matrix. In the programmable logic hierarchy, a CPLD sits between small SPLDs and larger FPGAs: it offers deterministic timing, instant-on non-volatile configuration, and is well suited to glue logic, bus interfacing, and state-machine replacement. The MAX 3000A family is the third-generation classic Altera MAX architecture built on EEPROM cells, providing 100% tested timing and JTAG-based in-system programmability.
Key features of the EPM3512AQI208-7N include 512 macrocells across 16 Logic Array Blocks (LABs), 32 macrocell registers per LAB, in-system programmability through IEEE Std 1149.1 (JTAG), multi-voltage I/O support at 2.5 V, 3.3 V or 5.0 V via separate VCCINT and VCCIO pins, and pin-compatible migration across the MAX 3000A density range. The '7N' speed grade and industrial temperature rating make it appropriate for production-grade embedded systems.
The device uses a classic MAX architecture where each macrocell contains a programmable AND/OR array feeding a flip-flop with product-term steering. The JTAG interface supports boundary-scan test and programming, while the MultiVolt I/O pins allow mixed-voltage interfacing without external level shifters. Combined with non-volatile EEPROM configuration, the design starts in microseconds with no external boot memory required.
Typical applications include industrial control glue logic, peripheral bus bridging, address decoding, and state-machine replacement. Designers also use the EPM3512AQI208-7N for legacy interface replacement (PCI, ISA, VME), timing-critical control paths, and cost-sensitive volume production where FPGA overhead is not justified.
A practical design consideration: when migrating from 5.0 V to 3.3 V systems, verify VCCIO is tied to the I/O rail (2.5 V or 3.3 V) and VCCINT to the 3.3 V core rail. Use the Altera/Intel Quartus MAX+PLUS II toolchain with the EDIF/VHDL netlist as the programming input for legacy MAX 3000A designs.
This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes not found in the original Altera MAX 3000A datasheet family documentation.
直接替换替代料： EPM3512AQI208-7N ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： EPM3512AQI208-7N （相同外形与封装尺寸） ——差异在于 Operating Temperature, Logic Array Blocks (LABs), Package, Speed Grade, Usable Gates.
快速对比工具——选择替代料号进行并排对比：
EPM3512AQI208-10N
✅ 直接替换✓ 有现货
$12.9 / 个
查看数据手册 →EPM3512AQI208-10
✅ 直接替换✓ 有现货
$15.2 / 个
查看数据手册 →EPM3512AQI208-7
✅ 直接替换✓ 有现货
$9.85 / 个
查看数据手册 →EPM3512AQC208-7N
✅ 直接替换✓ 有现货
$41.41 / 个
查看数据手册 →EPM3512AQC208-10N
✅ 直接替换✓ 有现货
$42.8 / 个
查看数据手册 →EPM3256AQI208-10N
✅ 直接替换✓ 有现货
$9.75 / 个
查看数据手册 →EPM3512AQI208-7N 最大额定值与电气特性
| Family | MAX 3000A |
| Product Type | CPLD (Complex Programmable Logic Device) |
| Usable Gates | 10,000 |
| Macrocells | 512 |
| Logic Array Blocks (LABs) | 16 |
| Maximum Operating Frequency | 116.3 MHz |
| Core Supply Voltage (VCCINT) | 3.3 V |
| I/O Supply Voltage (VCCIO) | 2.5 V / 3.3 V / 5.0 V (MultiVolt) |
| 封装 | 208-pin PQFP |
| Programming Interface | IEEE 1149.1 JTAG (in-system programmable) |
| Configuration Memory | EEPROM (non-volatile) |
| Speed Grade | 7 (7N suffix) |
| 工作温度 | Industrial (per 'N' suffix) |
| 引脚数量 | 208 |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
EPM3512AQI208-7N 引脚配置
| 引脚 1 | I/O — User I/O pin (function depends on Quartus / MAX+PLUS II fit) |
| 引脚 2 | I/O — User I/O pin |
| 引脚 3 | I/O — User I/O pin |
| 引脚 4 | I/O — User I/O pin |
| 引脚 5 | I/O — User I/O pin |
| 引脚 6 | VCCIO — I/O supply voltage (2.5 V / 3.3 V / 5.0 V) |
| 引脚 7 | GND — Ground |
| 引脚 8 | I/O — User I/O pin |
| 引脚 9 | I/O — User I/O pin |
| 引脚 10 | I/O — User I/O pin |
| 引脚 11 | I/O — User I/O pin |
| 引脚 12 | I/O — User I/O pin |
| 引脚 13 | I/O — User I/O pin |
| 引脚 14 | TDI — JTAG Test Data In |
| 引脚 15 | TMS — JTAG Test Mode Select |
| 引脚 16 | TCK — JTAG Test Clock |
| 引脚 17 | I/O — User I/O pin |
| 引脚 18 | I/O — User I/O pin |
| 引脚 19 | I/O — User I/O pin |
| 引脚 20 | I/O — User I/O pin |
典型应用
EPM3512AQI208-7N 适用于 6 应用s: Industrial Glue Logic Replacement, Legacy Bus Interface Bridging, State Machine and Protocol Encoder, Address Decoding and Chip Select Generation, Motor Control Timing and PWM Generation, Test and Measurement Instrumentation.
Industrial Glue Logic Replacement
The EPM3512AQI208-7N is well suited to replacing multiple discrete 74LS/74HC glue-logic packages on industrial control boards, consolidating address decoding, chip-select generation, and bus handshaking into a single non-volatile device. With 512 macrocells across 16 LABs it can absorb what previously required 8-12 discrete PAL/GAL devices, simplifying PCB layout and BOM. The MultiVolt VCCIO pins (2.5 V / 3.3 V / 5.0 V) allow direct interfacing with legacy 5 V peripherals without external level shifters, while the JTAG-based in-system programmability lets manufacturers reprogram via boundary-scan after board assembly, cutting rework time on logic changes.
推荐
Legacy Bus Interface Bridging
The EPM3512AQI208-7N serves as a bridge between legacy parallel buses such as PCI, ISA, VME, or PC/104 and modern microprocessors, handling protocol conversion, address mapping, and timing translation in a single chip. Its 116.3 MHz Fmax and deterministic pin-to-pin delay make it ideal for asynchronous bus cycles where FPGAs would introduce jitter. The 208-pin PQFP provides enough user I/O to multiplex multiple bus interfaces simultaneously, and the non-volatile EEPROM configuration means the bridge comes up active in microseconds - critical for systems where the CPU cannot tolerate FPGA configuration latency at power-on.
推荐
State Machine and Protocol Encoder
Designers use the EPM3512AQI208-7N to implement complex state machines and protocol encoders such as UART, SPI controller, I2C master, or custom serial protocols where deterministic timing is required. The MAX 3000A macrocell architecture with 32 macrocells per LAB maps naturally to FSM encoding with one-hot or binary state bits, and the product-term allocator handles wide decode logic efficiently. Because the device is non-volatile, the encoder starts in a known state immediately at power-on, eliminating the boot-time race condition that complicates FPGA-based implementations of the same function.
推荐
Address Decoding and Chip Select Generation
The EPM3512AQI208-7N is widely used to decode processor address buses and generate glitch-free chip-select signals for memory and peripheral maps in embedded systems. With 512 macrocells, it can produce dozens of chip-select outputs covering 16-32 address lines, including sub-decoding for bank-switched memory or stacked peripherals. The deterministic propagation delay simplifies worst-case timing analysis for memory access, which is a common challenge in FPGA-based solutions. Combined with JTAG reprogrammability, designers can update memory maps during development without respinning the PCB.
推荐
Motor Control Timing and PWM Generation
In motor control and power conversion applications, the EPM3512AQI208-7N generates precisely timed PWM signals, dead-band control, and fault-handling logic for three-phase inverters and DC motor drivers. Its deterministic delay supports the nanosecond-level timing margins required by modern MOSFET/IGFET gate drivers, and the MultiVolt I/O allows direct connection to 3.3 V microcontrollers and 5 V gate-driver inputs. With 512 macrocells it can run multiple independent PWM channels plus encoder-feedback processing, replacing dedicated timer ICs and reducing PCB area.
推荐
Test and Measurement Instrumentation
Test equipment designers use the EPM3512AQI208-7N for timing generators, pulse-train synthesis, custom stimulus patterns, and boundary-scan test insertion. The JTAG interface doubles as both a programming port and a production-test access point, allowing the same hardware to be used for in-system programming and IEEE 1149.1 boundary-scan test. The deterministic timing means stimulus patterns are repeatable, which is critical for production testers. With 512 macrocells the device can synthesize multiple simultaneous timing channels, replacing racks of discrete timing chips in ATE designs.
推荐
推荐产品汇总
工程参考数据： EPM3512AQI208-7N ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | EPM3512AQI208-10N | EPM3512AQI208-10 | EPM3512AQI208-7 | EPM3512AQC208-7N | EPM3512AQC208-10N | EPM3256AQI208-10N |
|---|---|---|---|---|---|---|---|
| Package | PQFP-208 | PQFP-208 - same | PQFP-208 - same | PQFP-208 - same | PQFP-208 - same | PQFP-208 - same | PQFP-208 - same |
| Brand | Intel (formerly Altera) | Intel - same brand | Intel - same brand | Intel - same brand | Intel - same brand | Intel - same brand | Intel - same brand |
| Macrocells | 512 | 512 - same | 512 - same | 512 - same | 512 - same | 512 - same | 256 (-50%) |
| Speed Grade | -7 (Fmax 116.3 MHz) | -10 (lower Fmax) | -10 (lower Fmax) | -7 (same) | -7 (same) | -10 (lower Fmax) | -10 (lower Fmax) |
| Temperature Range | Industrial (-40C to +85C) | Industrial - same | Industrial - same | Industrial - same | Commercial (0C to +70C) | Commercial (0C to +70C) | Industrial - same |
| Lead Finish (RoHS) | Lead-free (N suffix) | Lead-free - same | Lead-bearing (non-N) | Lead-bearing (non-N) | Lead-free - same | Lead-free - same | Lead-free - same |
| Usable Gates | 10,000 | 10,000 - same | 10,000 - same | 10,000 - same | 10,000 - same | 10,000 - same | 5,000 (-50%) |
| Programming Interface | JTAG (IEEE 1149.1) | JTAG - same | JTAG - same | JTAG - same | JTAG - same | JTAG - same | JTAG - same |
| Core Voltage (VCCINT) | 3.3 V | 3.3 V - same | 3.3 V - same | 3.3 V - same | 3.3 V - same | 3.3 V - same | 3.3 V - same |
关键差异点
- Faster speed grade within MAX 3000A family （对比 EPM3512AQI208-10N)
- Higher density than 256-cell MAX 3000A （对比 EPM3256AQI208-10N)
- Industrial temperature range with lead-free finish （对比 EPM3512AQC208-7N)
设计说明
The EPM3512AQI208-7N requires separate VCCINT (3.3 V core) and VCCIO (MultiVolt I/O) rails. VCCINT must be tied to a regulated 3.3 V supply; VCCIO can be connected to 2.5 V, 3.3 V, or 5.0 V depending on the I/O voltage of the surrounding logic. Decouple each VCCINT and VCCIO pin with a 0.1 uF ceramic capacitor placed as close to the package pin as possible, plus a bulk 10 uF tantalum or ceramic capacitor per rail. According to the MAX 3000A datasheet family, improper decoupling on VCCINT is the most common cause of JTAG programming failures.
The 208-pin PQFP package has 0.5 mm pitch leads and requires careful PCB layout to avoid solder bridges. Use a land pattern with at least 0.2 mm solder mask dam between pads and follow IPC-7351 PQFP guidelines. Place all decoupling capacitors within 5 mm of their respective supply pins and keep JTAG traces (TCK, TMS, TDI, TDO) short and parallel with a ground return to minimize programming noise. Estimated: trace impedance of 50 ohms is appropriate for JTAG at typical 10 MHz TCK rates.
Do not leave unused JTAG pins floating - tie TMS high through a 10 kohm pull-up, TCK low through 10 kohm pull-down, and TDI high through 10 kohm pull-up to avoid spurious JTAG state transitions at power-up. The MAX 3000A datasheet also warns against driving VCCIO below VCCINT - VCCIO must always be greater than or equal to VCCINT minus a small margin to prevent I/O latchup. If the design migrates between PQFP-208 and BGA-256 packages, verify the JTAG pinout matches; BGA variants route JTAG to different balls.
合规信息
RoHS and lead-free status inferred from 'N' suffix in MPN per Altera/Intel part-number convention. AEC-Q100 not applicable - CPLD is not an automotive-qualified part; the MAX 3000A family is industrial/commercial only.