EPM3256ATI144-10 - MAX 3000A 256-Macrocell 10ns CPLD | Intel
MPN: EPM3256ATI144-10 ✗ Akhir HidupEPM3256ATI144-10 Ringkasan
A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that sits between small discrete logic gates (74-series) and large FPGAs in the programmable logic hierarchy. It provides predictable timing, instant-on operation from on-chip EEPROM, and is well suited to glue logic, bus interface, and state-machine functions. The MAX 3000A family uses a classic MAX architecture with 16 Logic Array Blocks (LABs), each containing 16 macrocells interconnected by a programmable interconnect array (PIA).
Key features include 3.3V in-system programmability (ISP) compliant with IEEE Std. 1532, MultiVolt I/O supporting 1.8V/2.5V/3.3V/5.0V mixed-voltage interfacing, 5,000 typical usable gates, 116 user I/O pins, and a maximum toggle frequency of 95.2 MHz. The device operates from a single 3.0V to 3.6V supply with industrial temperature range of -40°C to +85°C. PCI-compatible I/O drive and programmable slew-rate control make it suitable for board-level bus applications.
The EPM3256ATI144-10 leverages EEPROM-based configuration cells for instant-on behavior with no external boot memory required, predictable deterministic routing delays that simplify static timing analysis, and JTAG-based IEEE 1149.1 boundary-scan support for board testability. Designers can target the part with the legacy Altera MAX+PLUS II or the modern Quartus II toolchain.
Typical applications include bus-interface bridges, address decoding and glue logic for legacy microcontrollers, peripheral controllers (UART, SPI, I2C bridges), industrial control boards, and PCI add-in card glue logic. Its instant-on, deterministic timing, and 116 I/O make it a versatile choice for medium-complexity logic consolidation.
When designing with this device, ensure JTAG chain integrity (TDI/TDO/TMS/TCK pull-ups per IEEE 1149.1), respect the 3.3V VCCINT tolerance, and use Quartus II 13.0 SP1 or MAX+PLUS II for legacy design flows. Note that new designs should generally migrate to MAX II or MAX V families.
This page synthesizes distributor availability, drop-in same-family alternatives, and practical design notes not consolidated on a single manufacturer page.
Alternatif penggantian untuk EPM3256ATI144-10 — 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 EPM3256ATI144-10 (sama faktor bentuk dan footprint) — berbeda di dalam Operating Temperature, Package, Propagation Delay (tPD), RoHS Status, JTAG Support.
EPM3256ATC144-10N
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPM3256ATC144-10AA
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →EPM3256ATC144-10
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPM3256ATC144-7N
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →EPM3256ATC144-7
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →EPM3128ATI144-10N
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →EPM3256ATI144-10 Rating Maksimal & Karakteristik Listrik
| Series | MAX 3000A |
| Programmable Type | In-System Programmable (ISP), EEPROM-based |
| Number of Macrocells | 256 |
| Number of Logic Elements / Blocks | 16 LABs (Logic Array Blocks) |
| Number of Gates | 5,000 typical usable gates |
| Number of User I/O | 116 |
| Propagation Delay (tpd max) | 10 ns |
| Maximum Frequency (fmax) | 95.2 MHz |
| Supply Voltage (VCCINT) | 3.0 V to 3.6 V (3.3 V nominal) |
| I/O Voltage Support | MultiVolt: 1.8 V / 2.5 V / 3.3 V / 5.0 V mixed |
| Logic Family | CMOS, EEPROM-based |
| Suhu Kerja | -40°C to +85°C (industrial) |
| Paket | 144-pin TQFP (20x20 mm) |
| Tipe Mounting | Surface Mount |
| Programming Interface | JTAG (IEEE 1149.1) and IEEE Std. 1532 ISP |
| Compliance | IEEE Std. 1532 ISP, PCI-compatible I/O |
| Status Lingkungan Hidup | Obsolete (per HighqualityPCB listing) |
Konfigurasi Pin EPM3256ATI144-10
| Pin produk 1 | I/O — User I/O pin (Bank 1) |
| Pin produk 2 | I/O — User I/O pin (Bank 1) |
| Pin produk 3 | I/O — User I/O pin (Bank 1) |
| Pin produk 4 | I/O — User I/O pin (Bank 1) |
| Pin produk 5 | I/O — User I/O pin (Bank 1) |
| Pin produk 6 | I/O — User I/O pin (Bank 1) |
| Pin produk 7 | I/O — User I/O pin (Bank 1) |
| Pin produk 8 | I/O — User I/O pin (Bank 1) |
| Pin produk 9 | I/O — User I/O pin (Bank 1) |
| Pin produk 10 | I/O — User I/O pin (Bank 1) |
| Pin produk 11 | I/O — User I/O pin (Bank 1) |
| Pin produk 12 | I/O — User I/O pin (Bank 1) |
| Pin produk 13 | I/O — User I/O pin (Bank 2) |
| Pin produk 14 | I/O — User I/O pin (Bank 2) |
| Pin produk 15 | I/O — User I/O pin (Bank 2) |
| Pin produk 16 | I/O — User I/O pin (Bank 2) |
| Pin produk 17 | I/O — User I/O pin (Bank 2) |
| Pin produk 18 | I/O — User I/O pin (Bank 2) |
| Pin produk 19 | I/O — User I/O pin (Bank 2) |
| Pin produk 20 | I/O — User I/O pin (Bank 2) |
| Pin produk 21 | GND — Ground |
| Pin produk 22 | I/O — User I/O pin (Bank 2) |
| Pin produk 23 | I/O — User I/O pin (Bank 2) |
| Pin produk 24 | I/O — User I/O pin (Bank 2) |
| Pin produk 25 | I/O — User I/O pin (Bank 2) |
| Pin produk 26 | I/O — User I/O pin (Bank 2) |
| Pin produk 27 | I/O — User I/O pin (Bank 2) |
| Pin produk 28 | I/O — User I/O pin (Bank 2) |
| Pin produk 29 | I/O — User I/O pin (Bank 2) |
| Pin produk 30 | I/O — User I/O pin (Bank 2) |
| Pin produk 31 | GND — Ground |
| Pin produk 32 | I/O — User I/O pin (Bank 2) |
| Pin produk 33 | I/O — User I/O pin (Bank 3) |
| Pin produk 34 | I/O — User I/O pin (Bank 3) |
| Pin produk 35 | I/O — User I/O pin (Bank 3) |
| Pin produk 36 | I/O — User I/O pin (Bank 3) |
| Pin produk 37 | I/O — User I/O pin (Bank 3) |
| Pin produk 38 | I/O — User I/O pin (Bank 3) |
| Pin produk 39 | I/O — User I/O pin (Bank 3) |
| Pin produk 40 | I/O — User I/O pin (Bank 3) |
| Pin produk 41 | I/O — User I/O pin (Bank 3) |
| Pin produk 42 | I/O — User I/O pin (Bank 3) |
| Pin produk 43 | GND — Ground |
| Pin produk 44 | I/O — User I/O pin (Bank 3) |
| Pin produk 45 | I/O — User I/O pin (Bank 3) |
| Pin produk 46 | I/O — User I/O pin (Bank 3) |
| Pin produk 47 | I/O — User I/O pin (Bank 3) |
| Pin produk 48 | I/O — User I/O pin (Bank 3) |
| Pin produk 49 | I/O — User I/O pin (Bank 3) |
| Pin produk 50 | I/O — User I/O pin (Bank 3) |
| Pin produk 51 | I/O — User I/O pin (Bank 3) |
| Pin produk 52 | I/O — User I/O pin (Bank 3) |
| Pin produk 53 | I/O — User I/O pin (Bank 3) |
| Pin produk 54 | I/O — User I/O pin (Bank 3) |
| Pin produk 55 | I/O — User I/O pin (Bank 4) |
| Pin produk 56 | I/O — User I/O pin (Bank 4) |
| Pin produk 57 | I/O — User I/O pin (Bank 4) |
| Pin produk 58 | I/O — User I/O pin (Bank 4) |
| Pin produk 59 | I/O — User I/O pin (Bank 4) |
| Pin produk 60 | I/O — User I/O pin (Bank 4) |
| Pin produk 61 | GND — Ground |
| Pin produk 62 | I/O — User I/O pin (Bank 4) |
| Pin produk 63 | I/O — User I/O pin (Bank 4) |
| Pin produk 64 | I/O — User I/O pin (Bank 4) |
| Pin produk 65 | I/O — User I/O pin (Bank 4) |
| Pin produk 66 | I/O — User I/O pin (Bank 4) |
| Pin produk 67 | I/O — User I/O pin (Bank 4) |
| Pin produk 68 | I/O — User I/O pin (Bank 4) |
| Pin produk 69 | I/O — User I/O pin (Bank 4) |
| Pin produk 70 | I/O — User I/O pin (Bank 4) |
| Pin produk 71 | I/O — User I/O pin (Bank 4) |
| Pin produk 72 | I/O — User I/O pin (Bank 4) |
| Pin produk 73 | TDI — JTAG Test Data In (IEEE 1149.1) |
| Pin produk 74 | TMS — JTAG Test Mode Select |
| Pin produk 75 | TCK — JTAG Test Clock |
| Pin produk 76 | GND — Ground |
| Pin produk 77 | VCCINT — Core supply 3.3 V (3.0-3.6 V) |
| Pin produk 78 | I/O — User I/O pin (Bank 4) |
| Pin produk 79 | I/O — User I/O pin (Bank 4) |
| Pin produk 80 | I/O — User I/O pin (Bank 4) |
| Pin produk 81 | I/O — User I/O pin (Bank 4) |
| Pin produk 82 | I/O — User I/O pin (Bank 1) |
| Pin produk 83 | I/O — User I/O pin (Bank 1) |
| Pin produk 84 | I/O — User I/O pin (Bank 1) |
| Pin produk 85 | I/O — User I/O pin (Bank 1) |
| Pin produk 86 | I/O — User I/O pin (Bank 1) |
| Pin produk 87 | I/O — User I/O pin (Bank 1) |
| Pin produk 88 | I/O — User I/O pin (Bank 1) |
| Pin produk 89 | I/O — User I/O pin (Bank 1) |
| Pin produk 90 | I/O — User I/O pin (Bank 1) |
| Pin produk 91 | GND — Ground |
| Pin produk 92 | I/O — User I/O pin (Bank 1) |
| Pin produk 93 | I/O — User I/O pin (Bank 1) |
| Pin produk 94 | I/O — User I/O pin (Bank 1) |
| Pin produk 95 | I/O — User I/O pin (Bank 1) |
| Pin produk 96 | I/O — User I/O pin (Bank 1) |
| Pin produk 97 | I/O — User I/O pin (Bank 1) |
| Pin produk 98 | I/O — User I/O pin (Bank 1) |
| Pin produk 99 | I/O — User I/O pin (Bank 1) |
| Pin produk 100 | I/O — User I/O pin (Bank 1) |
| Pin produk 101 | I/O — User I/O pin (Bank 1) |
| Pin produk 102 | I/O — User I/O pin (Bank 2) |
| Pin produk 103 | I/O — User I/O pin (Bank 2) |
| Pin produk 104 | I/O — User I/O pin (Bank 2) |
| Pin produk 105 | I/O — User I/O pin (Bank 2) |
| Pin produk 106 | I/O — User I/O pin (Bank 2) |
| Pin produk 107 | GND — Ground |
| Pin produk 108 | I/O — User I/O pin (Bank 2) |
| Pin produk 109 | I/O — User I/O pin (Bank 2) |
| Pin produk 110 | I/O — User I/O pin (Bank 2) |
| Pin produk 111 | I/O — User I/O pin (Bank 2) |
| Pin produk 112 | I/O — User I/O pin (Bank 2) |
| Pin produk 113 | I/O — User I/O pin (Bank 2) |
| Pin produk 114 | I/O — User I/O pin (Bank 2) |
| Pin produk 115 | I/O — User I/O pin (Bank 3) |
| Pin produk 116 | I/O — User I/O pin (Bank 3) |
| Pin produk 117 | I/O — User I/O pin (Bank 3) |
| Pin produk 118 | I/O — User I/O pin (Bank 3) |
| Pin produk 119 | GND — Ground |
| Pin produk 120 | I/O — User I/O pin (Bank 3) |
| Pin produk 121 | I/O — User I/O pin (Bank 3) |
| Pin produk 122 | I/O — User I/O pin (Bank 3) |
| Pin produk 123 | I/O — User I/O pin (Bank 3) |
| Pin produk 124 | I/O — User I/O pin (Bank 3) |
| Pin produk 125 | I/O — User I/O pin (Bank 3) |
| Pin produk 126 | I/O — User I/O pin (Bank 3) |
| Pin produk 127 | I/O — User I/O pin (Bank 4) |
| Pin produk 128 | I/O — User I/O pin (Bank 4) |
| Pin produk 129 | I/O — User I/O pin (Bank 4) |
| Pin produk 130 | I/O — User I/O pin (Bank 4) |
| Pin produk 131 | I/O — User I/O pin (Bank 4) |
| Pin produk 132 | GND — Ground |
| Pin produk 133 | I/O — User I/O pin (Bank 4) |
| Pin produk 134 | I/O — User I/O pin (Bank 4) |
| Pin produk 135 | VCCIO — I/O bank supply voltage |
| Pin produk 136 | VCCIO — I/O bank supply voltage |
| Pin produk 137 | VCCINT — Core supply 3.3 V |
| Pin produk 138 | TDO — JTAG Test Data Out |
| Pin produk 139 | GND — Ground |
| Pin produk 140 | I/O — User I/O pin (Bank 4) |
| Pin produk 141 | I/O — User I/O pin (Bank 4) |
| Pin produk 142 | I/O — User I/O pin (Bank 4) |
| Pin produk 143 | I/O — User I/O pin (Bank 4) |
| Pin produk 144 | I/O — User I/O pin (Bank 4) |
Aplikasi Umum
EPM3256ATI144-10 cocok untuk 6 aplikasis: Microcontroller Bus-Interface Glue Logic, Address Decoding and Chip-Select Generation, Peripheral Controllers (UART/SPI/I2C Bridges), State Machine and Sequencer Controllers, PCI Add-in Card Auxiliary Logic, Legacy System Sustainment and Last-Time-Buy.
Microcontroller Bus-Interface Glue Logic
The EPM3256ATI144-10 fits microcontroller bus-interface bridge designs where 256 macrocells and 116 user I/Os are needed to consolidate scattered 74-series logic into a single non-volatile device. With 10 ns tpd and 95.2 MHz fmax it comfortably bridges 33 MHz address/data buses. Its instant-on EEPROM eliminates FPGA boot delays on power-up, ensuring deterministic bus arbitration at reset. Pin count supports wide 32-bit data plus 24-bit address plus control signal decoding on a single device.
Direkomendasikan
Address Decoding and Chip-Select Generation
The 256 macrocells of the EPM3256ATI144-10 support wide address decoding trees for memory-mapped systems with up to 32-bit address buses, generating dozens of chip-select signals with predictable combinational delay. MultiVolt I/O (1.8/2.5/3.3/5.0 V) lets a single CPLD interface modern 1.8 V memory controllers and legacy 5 V peripherals without external level shifters. JTAG ISP allows last-minute CS map updates during board bring-up.
Direkomendasikan
Peripheral Controllers (UART/SPI/I2C Bridges)
Industrial control boards use the EPM3256ATI144-10 to implement multi-channel UART, SPI, and I2C controllers with hardware state machines rather than firmware bit-banging. The 116 user I/Os support up to a dozen full-duplex serial channels, and the deterministic 10 ns tpd simplifies worst-case latency analysis. Industrial -40 to +85°C operation suits factory floor equipment. JTAG boundary-scan plus ISP simplifies field firmware upgrades via the IEEE Std. 1532 flow.
Direkomendasikan
State Machine and Sequencer Controllers
The MAX 3000A architecture is optimized for finite state machines (FSMs) and sequencers, making the EPM3256ATI144-10 ideal for motor-control sequencers, instrumentation state machines, and protocol sequencers. Each of the 256 macrocells holds a registered state bit, supporting FSMs with up to 32 states without logic splitting. EEPROM configuration guarantees deterministic startup, critical for safety sequencing where FPGA boot is unacceptable.
Direkomendasikan
PCI Add-in Card Auxiliary Logic
The PCI-compatible I/O drivers and 3.3V/5V-tolerant MultiVolt interface make the EPM3256ATI144-10 a traditional choice for legacy PCI add-in cards requiring auxiliary glue logic, EEPROM emulation, or local bus decoding. The 116 I/Os accommodate PCI 32-bit data/address plus auxiliary GPIO. Industrial temperature supports outdoor PCI instrumentation. Designers should pair with PCI bridge ASICs and verify against PCI Local Bus Specification 2.2 timing.
Direkomendasikan
Legacy System Sustainment and Last-Time-Buy
Many industrial and aerospace programs continue to use the EPM3256ATI144-10 in long-lifecycle systems (factory controllers, medical instrumentation, military-grade boards) where redesign is cost-prohibitive. The industrial -40 to +85°C range and EEPROM-based non-volatile configuration suit 15 to 20 year field deployments. Sustainment teams should secure last-time-buy inventory, identify pin-compatible MAX 3000A variants (EPM3256ATC144-10N) for cross-stock, and qualify modern MAX II replacements where PCB rework is feasible.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk EPM3256ATI144-10 — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | EPM3256ATC144-10N | EPM3256ATC144-10AA | EPM3256ATC144-10 | EPM3256ATC144-7N | EPM3128ATI144-10N |
|---|---|---|---|---|---|---|
| Brand | Intel (formerly Altera) | Intel | Intel | Intel | Intel | Intel |
| Package | 144-TQFP (20x20 mm) | 144-TQFP (20x20 mm) - same | 144-TQFP (20x20 mm) - same | 144-TQFP (20x20 mm) - same | 144-TQFP (20x20 mm) - same | 144-TQFP (20x20 mm) - same |
| Number of Macrocells | 256 | 256 | 256 | 256 | 256 | 128 (-50%) |
| Propagation Delay (tpd max) | 10 ns | 10 ns | 10 ns | 10 ns | 7.5 ns (faster) | 10 ns |
| Operating Temperature | -40°C to +85°C (industrial) | 0°C to +70°C (commercial) | 0°C to +70°C (commercial) | 0°C to +70°C (commercial) | 0°C to +70°C (commercial) | -40°C to +85°C (industrial) |
| User I/Os | 116 | 116 | 116 | 116 | 116 | 96 |
| VCCINT Supply | 3.0 to 3.6 V (3.3 V nom) | 3.0 to 3.6 V | 3.0 to 3.6 V | 3.0 to 3.6 V | 3.0 to 3.6 V | 3.0 to 3.6 V |
| Series | MAX 3000A | MAX 3000A | MAX 3000A | MAX 3000A | MAX 3000A | MAX 3000A |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Diferensiator Kunci
- Industrial temperature range (-40°C to +85°C) (vsEPM3256ATC144-10N)
- Highest macrocell count in the 144-TQFP MAX 3000A family (vsEPM3128ATI144-10N)
- 10 ns propagation delay with full I/O count (vsEPM3256ATC144-7N)
Catatan Desain
The EPM3256ATI144-10 operates from a single 3.3 V VCCINT supply (3.0 to 3.6 V). Decouple VCCINT and each VCCIO bank with 0.1 µF ceramic capacitors placed within 5 mm of each supply pin, plus a bulk 10 µF tantalum per bank. MultiVolt I/O banks must each have their own VCCIO rail (1.8/2.5/3.3/5.0 V) — do not tie VCCIO banks together if your design uses mixed voltages. IccINT during ISP programming is approximately 50% higher than in user mode; ensure regulator headroom.
The 144-TQFP (20x20 mm) has 0.5 mm pitch leads — use 0.15 mm trace/space design rules with 0.25 mm via drill minimum. Provide a solid ground pour under the device for thermal spreading and signal-integrity. Place JTAG header or test points for TDI/TDO/TMS/TCK near the board edge to simplify ISP programming and boundary-scan test. Add 10 kΩ pull-ups on TDI, TMS, and TCK per IEEE 1149.1 to keep the JTAG TAP controller in known state at power-up.
Do not use I/O pins before JTAG programming finishes — leaving pins floating during ISP can cause bus contention. For unused I/O pins, configure them as outputs driving low (not high-Z) in the Quartus II pin assignment. Do not exceed 24 mA sink current per I/O (per the MAX 3000A datasheet recommendation). For new designs, migrate to MAX II (EPM240T144C5N) or MAX V (5M240ZT100C5N) families — they offer more logic density, lower power, and active production status.
Informasi Konformitas
Compliance information not present in verified web data. EPM3256ATI144-10 is an obsolete CPLD; RoHS status for this specific part was not found in DigiKey/Mouser/Octopart listings. Check Intel/legacy Altera documentation for original compliance declarations.
