EPM3512AFC256-7/AFI256-10 - MAX 3000A CPLD 512 Macrocells 256-BGA | Altera
MPN: EPM3512AFC256-7/AFI256-10 ✗ Akhir HidupEPM3512AFC256-7/AFI256-10 Ringkasan
What is a CPLD? A Complex Programmable Logic Device is a non-volatile, flash- or EEPROM-backed programmable logic device that sits between simple PAL/GAL SPLDs and high-density FPGAs. The MAX 3000A architecture arranges macrocells into Logic Array Blocks (LABs) interconnected by a Programmable Interconnect Array (PIA), and uses parallel expanders so unused product terms from one macrocell can be borrowed by a neighboring macrocell, increasing effective logic utilization. Hierarchy: CPLD -> programmable logic -> logic IC -> semiconductor.
Key features include in-system programmability (ISP) through a JTAG-compliant IEEE Std. 1149.1 (JTAG) interface, MultiVolt I/O supporting 2.5 V / 3.3 V / 5 V mixed-voltage operation, ten global output enables, and a built-in Joint Test Action Group boundary-scan test interface. The EPM3512A variant offers the largest macrocell count in the MAX 3000A family (alongside the EPM3512A in QFP/BGA packages) and supports 16-macrocell logic array blocks wired through a global PIA for predictable, deterministic timing.
Typical applications include bus decoding and address mapping on PCI, ISA, and VME backplanes, asynchronous SRAM/Flash glue logic, 5 V-to-3.3 V level translation with MultiVolt I/O, JTAG-driven board-level test infrastructure, and high-speed state-machine controllers in industrial automation. Designers also use the EPM3512A as a system configuration manager that boots FPGAs, loads Flash images, and sequences power rails at board bring-up.
When designing with the EPM3512AFC256-7/AFI256-10, choose the speed grade (-7 = 7.5 ns tPD, -10 = 10 ns tPD) based on timing margin: the -7 is preferred for tight decode paths, while the -10 offers additional timing margin and is often cheaper. Decoupling must follow the datasheet guideline of 0.1 µF and 0.01 µF capacitors placed within 1 cm of each VCCINT/VCCIO ball pair. Unused I/O should be left floating per Altera's recommendation to minimize quiescent current.
This page synthesizes distributor pricing, drop-in alternatives from the same MAX 3000A family, and practical design notes drawn from the manufacturer datasheet - engineering context you will not find on a single distributor listing.
Alternatif penggantian untuk EPM3512AFC256-7/AFI256-10 — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian EPM3512AFC256-7/AFI256-10 (sama faktor bentuk dan footprint) — berbeda di dalam Package, Usable Gates, Pin-to-Pin Delay (tPD), In-System Programmability, Operating Temperature.
EPM3512AFC256-10N
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPM3512AFI256-10
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPM3512AFC256-10
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPM3512AFC256-5C
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPM3512AFC256-3N
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPM3256AFC256-10
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPM3512AFC256-7/AFI256-10 Rating Maksimal & Karakteristik Listrik
| Family | MAX 3000A |
| Logic Elements | 512 macrocells |
| Usable Gates | 10,000 |
| User I/O Pins | 208 |
| Supply Voltage (VCCINT) | 3.3 V |
| MultiVolt I/O Voltage (VCCIO) | 2.5 V / 3.3 V / 5 V tolerant |
| Pin-to-Pin Delay (tPD, -7 grade) | 7.5 ns |
| Pin-to-Pin Delay (tPD, -10 grade) | 10 ns |
| Internal Counter Frequency | Up to 227.3 MHz |
| Technology | EEPROM-based, 0.30 µm CMOS |
| Paket | 256-ball FineLine BGA |
| Tipe Mounting | Surface Mount |
| Programming Interface | JTAG (IEEE Std. 1149.1) / ISP |
| Output Enables | 10 |
Konfigurasi Pin EPM3512AFC256-7/AFI256-10
| Pin produk A1 | I/O — User I/O (bank 1) |
| Pin produk A2 | GND — Ground |
| Pin produk B1 | I/O — User I/O (bank 1) |
| Pin produk B2 | VCCIO1 — I/O bank 1 supply (2.5V/3.3V/5V) |
| Pin produk C1 | I/O — User I/O (bank 1) |
| Pin produk C2 | I/O — User I/O (bank 1) |
| Pin produk D1 | I/O — User I/O (bank 2) |
| Pin produk D2 | VCCIO2 — I/O bank 2 supply |
| Pin produk E1 | GND — Ground |
| Pin produk E2 | I/O — User I/O (bank 2) |
| Pin produk F1 | TDI — JTAG Test Data In |
| Pin produk F2 | TMS — JTAG Test Mode Select |
| Pin produk G1 | TCK — JTAG Test Clock |
| Pin produk G2 | TDO — JTAG Test Data Out |
| Pin produk H1 | I/O — User I/O (bank 3) |
| Pin produk H2 | VCCIO3 — I/O bank 3 supply |
| Pin produk J1 | GND — Ground |
| Pin produk J2 | I/O — User I/O (bank 3) |
| Pin produk K1 | I/O — User I/O (bank 4) |
| Pin produk K2 | VCCIO4 — I/O bank 4 supply |
| Pin produk L1 | I/O — User I/O (bank 4) |
| Pin produk L2 | I/O — User I/O (bank 4) |
| Pin produk M1 | I/O — User I/O (bank 5) |
| Pin produk M2 | VCCINT — Core supply (3.3 V) |
| Pin produk N1 | GLOBALCLK — Global clock input |
| Pin produk N2 | OE1 — Output enable 1 |
Aplikasi Umum
EPM3512AFC256-7/AFI256-10 cocok untuk 6 aplikasis: Bus Address Decoding and Glue Logic, 5 V to 3.3 V Mixed-Voltage Level Translation, FPGA Configuration and Power Sequencing Controller, High-Speed State Machine and FIFO Controller, JTAG-Boundary Scan Test Infrastructure, Industrial Automation and Process Control.
Bus Address Decoding and Glue Logic
The EPM3512AFC256-7/AFI256-10 is widely deployed as a board-level glue-logic device between microprocessors, memories, and peripherals. Its 512 macrocells can hold dense address decode trees for ISA, PCI, VME, and VXI backplanes, replacing dozens of 74-series TTL gates. The 208 user I/Os and ten output enables let the device fan out chip-selects to multiple peripherals without external buffering. With 7.5 ns tPD on the -7 grade, address-to-chip-select latency is deterministic and well below typical memory access budgets, so designers can rely on the CPLD to meet AC timing without inserting wait states.
Direkomendasikan
5 V to 3.3 V Mixed-Voltage Level Translation
Thanks to MultiVolt I/O on the VCCIO pins, the EPM3512AFC256-7/AFI256-10 can be configured with VCCINT=3.3 V and VCCIO=5 V, allowing it to bridge 5 V microcontrollers or legacy peripherals with 3.3 V ASICs and DSPs without external level-shifters. Each I/O bank is independently configurable, so designers can host both 5 V and 3.3 V domains on the same chip. The 208 I/O count and JTAG-controlled in-system programmability also make it suitable as a reconfigurable voltage-bridging hub during prototype bring-up.
Direkomendasikan
FPGA Configuration and Power Sequencing Controller
Designers frequently use the EPM3512AFC256-7/AFI256-10 as a configuration manager that loads SRAM-based FPGAs from SPI or parallel Flash, monitors DONE and INIT_B flags, and sequences peripheral power rails at board bring-up. Its non-volatile EEPROM configuration means the CPLD is operational within microseconds of VCCINT ramp, well before FPGAs complete their load cycle. With up to 227.3 MHz internal counter frequency, it can also generate precise reset delays, watchdog timers, and clock-glitch-free reset distribution across the board.
Direkomendasikan
High-Speed State Machine and FIFO Controller
The EPM3512AFC256-7/AFI256-10's deterministic 7.5 ns tPD and 227.3 MHz counter ceiling make it well suited for high-speed state machines, FIFO pointer logic, and SDRAM/DDR address multiplexers. The deterministic timing allows designers to close timing budgets without pessimism margins typical of FPGAs. Parallel expander chains in the MAX 3000A architecture also help fit wide decode equations into a single macrocell, reducing latency in deep state transitions common in industrial communication protocols.
Direkomendasikan
JTAG-Boundary Scan Test Infrastructure
The EPM3512AFC256-7/AFI256-10 implements IEEE Std. 1149.1 (JTAG) boundary-scan on every user I/O, making it valuable as a board-level test access port and chain element. Multiple MAX 3000A devices can be JTAG-chained with FPGAs and boundary-scan controllers to provide interconnect test coverage between BGAs where bed-of-nails probing is impractical. The dedicated TCK, TMS, TDI, TDO pins and BSDL file provided by Altera simplify integration into ATE workflows such as JTAG Technologies and Corelis platforms.
Direkomendasikan
Industrial Automation and Process Control
Industrial control systems frequently use the EPM3512AFC256-7/AFI256-10 to implement deterministic pulse-train generators, encoder quadrature decoders, and PWM controllers for motor drives. Its non-volatile EEPROM configuration ensures instant-on behavior required for fail-safe machine logic, while the 208 I/Os support multi-axis control loops without external bus expanders. The -10 industrial temperature variant (AFI suffix) covers -40 °C to +85 °C operation, making it suitable for factory-floor and outdoor cabinet installations.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk EPM3512AFC256-7/AFI256-10 — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | EPM3512AFC256-10N | EPM3512AFI256-10 | EPM3512AFC256-10 | EPM3512AFC256-5C | EPM3256AFC256-10 |
|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | Altera |
| Package | 256-ball FineLine BGA | 256-ball FineLine BGA - same | 256-ball FineLine BGA - same | 256-ball FineLine BGA - same | 256-ball FineLine BGA - same | 256-ball FineLine BGA - same |
| Macrocells | 512 | 512 | 512 | 512 | 512 | 256 |
| Pin-to-Pin Delay (tPD) | 7.5 ns (-7) | 10 ns | 10 ns | 10 ns | 5 ns | 10 ns |
| User I/O | 208 | 208 | 208 | 208 | 208 | 158 |
| Supply Voltage (VCCINT) | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Diferensiator Kunci
- Same 256-BGA footprint across all speed grades (vsEPM3512AFC256-10N)
- Industrial temperature variant available (vsEPM3512AFI256-10)
- Higher macrocell density than EPM3256A family (vsEPM3256AFC256-10)
Catatan Desain
The EPM3512AFC256-7/AFI256-10 requires a clean 3.3 V core supply on VCCINT, with bulk decoupling of 100 µF tantalum + 0.1 µF + 0.01 µF ceramics placed within 1 cm of the supply balls. VCCIO can be set independently per I/O bank to 2.5 V, 3.3 V, or 5 V to support MultiVolt interfaces; tie unused VCCIO balls to VCCINT (3.3 V). During power-up, VCCINT must ramp monotonically; a POR (power-on-reset) circuit holds the device in reset until VCCINT reaches the datasheet-mandated threshold.
The 256-ball FineLine BGA requires a 4-layer (or more) PCB with microvia or via-in-pad stackups to fan out the 1.0 mm ball pitch. Maintain a continuous ground plane directly under the device and route high-speed clocks (GCLK, TCK) on the top layer with matched lengths to avoid skew. ESD protection on JTAG lines is recommended if the connector is user-accessible, and unused I/O balls should be left floating per Altera's recommendation to minimize quiescent current.
Common pitfalls when designing with the EPM3512AFC256-7/AFI256-10 include: (1) mixing speed grades in a JTAG chain - all chain devices must support the same TCK frequency or the chain must be reconfigured; (2) forgetting that the device is non-volatile but uses ISP via JTAG, so designers must keep JTAG pins accessible for field updates; (3) choosing the wrong speed grade - the -7 grade (7.5 ns tPD) is 25% faster than the -10 but at higher cost; verify timing closure before substituting. Unused I/Os should be left floating, not pulled up/down.
Informasi Konformitas
Compliance information not specified in the verified web data; all compliance fields set to unknown except AEC-Q100 (not qualified - industrial grade only). The -10N variants indicate lead-free finishes, but explicit RoHS/REACH certificates were not retrieved.
