EPM7256AETI144-7N - MAX 7000A CPLD 256 Macro 3.3V TQFP-144
MPN: EPM7256AETI144-7N ✗ Akhir HidupEPM7256AETI144-7N Ringkasan
A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic IC that provides instant-on behavior, deterministic timing, and flexible glue-logic integration. CPLDs sit hierarchically below FPGAs and above discrete 74-series logic: they offer more density than discrete logic but lower latency and simpler tool flow than FPGAs, making them ideal for bus decoding, address mapping, state-machine control, and I/O expansion in cost-sensitive, low-power systems.
Key features of the EPM7256AETI144-7N include 256 macrocells, 36 user I/Os (industrial-grade), pin-to-pin logic delays of 7.5 ns, a maximum internal counter frequency of 126.6 MHz, and JTAG-based in-system programmability via the IEEE 1149.1 boundary-scan interface. The MAX 7000A architecture combines a programmable AND/OR array with macrocell flip-flops and per-pin programmable output slew-rate control.
This part is built on a 0.3 µm EEPROM process node with 5V-tolerant I/O, allowing direct interface to legacy 5V peripherals without level shifters. The 144-pin TQFP offers 36 dedicated user I/Os, four dedicated inputs, and global control signals for clock, clear, and output enable. MultiVolt I/O supports mixed-voltage rails in designs bridging 5.0V and 3.3V domains.
Typical applications include peripheral-interface bridging (PCI, ISA, VME bus decoding), state-machine-based motor and servo control, glue-logic replacement of multiple discrete 74-series devices, address decoding for memory-mapped microcontrollers, and industrial-control systems requiring instant-on non-volatile configuration. The industrial temperature grade (-40 °C to +85 °C) supports harsh-environment deployment.
When designing with this part, ensure that the Quartus II / MAX+PLUS II toolchain is used for synthesis and fitting. Reserve at least one JTAG pin (TCK, TMS, TDI, TDO) group in the pinout to support in-system programming, and decouple every VCCINT and VCCIO pin with a 0.1 µF ceramic capacitor placed within 5 mm of the package.
This page synthesizes distributor pricing, verified parametric data, drop-in alternatives from the MAX 7000A family and competitor equivalents, and practical design notes not consolidated on any single manufacturer or distributor page.
Alternatif penggantian untuk EPM7256AETI144-7N — 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 EPM7256AETI144-7N (sama faktor bentuk dan footprint) — berbeda di dalam Package, Programming Interface, Configuration Memory, Operating Temperature, Supply Voltage (VCCINT).
EPM7256AETI144-7
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPM7256AETI144-10N
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
EPM7256AEFC256-5N
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →LC4256V-75T144E
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
EPM7256AETC144-10N
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPM7256AETC144-7N
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPM7256AETI144-7N Rating Maksimal & Karakteristik Listrik
| Family | MAX 7000A |
| Device Type | CPLD (Complex Programmable Logic Device) |
| Usable Gates | 5000 |
| Macrocells | 256 |
| User I/Os | 36 (industrial variant) |
| Logic Elements | 256 |
| Supply Voltage (VCCINT) | 3.0 V to 3.6 V (3.3 V nominal) |
| I/O Voltage (VCCIO) | 2.5 V / 3.3 V / 5.0 V tolerant |
| Pin-to-Pin Logic Delay (tPD) | 7.5 ns |
| Maximum Internal Frequency (fCNT) | 126.6 MHz |
| Process Technology | EEPROM (0.3 µm CMOS) |
| Paket | TQFP-144 |
| Tipe Mounting | Surface Mount |
| Suhu Kerja | -40 °C to +85 °C (industrial) |
| Programming Interface | JTAG (IEEE 1149.1) / ByteBlaster |
| Lead-Free | Yes (per Altera product page) |
Konfigurasi Pin EPM7256AETI144-7N
| Pin produk 1 | I/O — User I/O (bank 1) |
| Pin produk 2 | I/O — User I/O (bank 1) |
| Pin produk 3 | I/O — User I/O (bank 1) |
| Pin produk 4 | I/O — User I/O (bank 1) |
| Pin produk 5 | I/O — User I/O (bank 1) |
| Pin produk 6 | I/O — User I/O (bank 1) |
| Pin produk 7 | I/O — User I/O (bank 1) |
| Pin produk 8 | I/O — User I/O (bank 1) |
| Pin produk 9 | I/O — User I/O (bank 1) |
| Pin produk 10 | I/O — User I/O (bank 1) |
| Pin produk 11 | GND — Ground |
| Pin produk 12 | I/O — User I/O (bank 1) |
| Pin produk 13 | I/O — User I/O (bank 1) |
| Pin produk 14 | I/O — User I/O (bank 1) |
| Pin produk 15 | I/O — User I/O (bank 1) |
| Pin produk 16 | I/O — User I/O (bank 1) |
| Pin produk 17 | I/O — User I/O (bank 1) |
| Pin produk 18 | I/O — User I/O (bank 1) |
| Pin produk 19 | I/O — User I/O (bank 1) |
| Pin produk 20 | I/O — User I/O (bank 1) |
| Pin produk 21 | GND — Ground |
| Pin produk 22 | I/O — User I/O (bank 2) |
| Pin produk 23 | I/O — User I/O (bank 2) |
| Pin produk 24 | I/O — User I/O (bank 2) |
| Pin produk 25 | I/O — User I/O (bank 2) |
| Pin produk 26 | I/O — User I/O (bank 2) |
| Pin produk 27 | I/O — User I/O (bank 2) |
| Pin produk 28 | I/O — User I/O (bank 2) |
| Pin produk 29 | I/O — User I/O (bank 2) |
| Pin produk 30 | I/O — User I/O (bank 2) |
| Pin produk 31 | VCCIO1 — I/O supply bank 1 |
| Pin produk 32 | I/O — User I/O (bank 2) |
| Pin produk 33 | I/O — User I/O (bank 2) |
| Pin produk 34 | I/O — User I/O (bank 2) |
| Pin produk 35 | I/O — User I/O (bank 2) |
| Pin produk 36 | I/O — User I/O (bank 2) |
| Pin produk 37 | I/O — User I/O (bank 2) |
| Pin produk 38 | I/O — User I/O (bank 2) |
| Pin produk 39 | I/O — User I/O (bank 2) |
| Pin produk 40 | I/O — User I/O (bank 2) |
| Pin produk 41 | GND — Ground |
| Pin produk 42 | I/O — User I/O (bank 3) |
| Pin produk 43 | I/O — User I/O (bank 3) |
| Pin produk 44 | I/O — User I/O (bank 3) |
| Pin produk 45 | I/O — User I/O (bank 3) |
| Pin produk 46 | I/O — User I/O (bank 3) |
| Pin produk 47 | I/O — User I/O (bank 3) |
| Pin produk 48 | I/O — User I/O (bank 3) |
| Pin produk 49 | I/O — User I/O (bank 3) |
| Pin produk 50 | I/O — User I/O (bank 3) |
| Pin produk 51 | VCCINT — Core supply 3.3V |
| Pin produk 52 | I/O — User I/O (bank 3) |
| Pin produk 53 | I/O — User I/O (bank 3) |
| Pin produk 54 | I/O — User I/O (bank 3) |
| Pin produk 55 | I/O — User I/O (bank 3) |
| Pin produk 56 | I/O — User I/O (bank 3) |
| Pin produk 57 | I/O — User I/O (bank 3) |
| Pin produk 58 | I/O — User I/O (bank 3) |
| Pin produk 59 | I/O — User I/O (bank 3) |
| Pin produk 60 | I/O — User I/O (bank 3) |
| Pin produk 61 | GND — Ground |
| Pin produk 62 | I/O — User I/O (bank 4) |
| Pin produk 63 | I/O — User I/O (bank 4) |
| Pin produk 64 | I/O — User I/O (bank 4) |
| Pin produk 65 | I/O — User I/O (bank 4) |
| Pin produk 66 | I/O — User I/O (bank 4) |
| Pin produk 67 | I/O — User I/O (bank 4) |
| Pin produk 68 | I/O — User I/O (bank 4) |
| Pin produk 69 | I/O — User I/O (bank 4) |
| Pin produk 70 | I/O — User I/O (bank 4) |
| Pin produk 71 | VCCIO2 — I/O supply bank 2 |
| Pin produk 72 | I/O — User I/O (bank 4) |
| Pin produk 73 | I/O — User I/O (bank 4) |
| Pin produk 74 | I/O — User I/O (bank 4) |
| Pin produk 75 | I/O — User I/O (bank 4) |
| Pin produk 76 | I/O — User I/O (bank 4) |
| Pin produk 77 | I/O — User I/O (bank 4) |
| Pin produk 78 | I/O — User I/O (bank 4) |
| Pin produk 79 | I/O — User I/O (bank 4) |
| Pin produk 80 | I/O — User I/O (bank 4) |
| Pin produk 81 | GND — Ground |
| Pin produk 82 | I/O — User I/O (bank 5) |
| Pin produk 83 | I/O — User I/O (bank 5) |
| Pin produk 84 | I/O — User I/O (bank 5) |
| Pin produk 85 | I/O — User I/O (bank 5) |
| Pin produk 86 | I/O — User I/O (bank 5) |
| Pin produk 87 | I/O — User I/O (bank 5) |
| Pin produk 88 | I/O — User I/O (bank 5) |
| Pin produk 89 | I/O — User I/O (bank 5) |
| Pin produk 90 | I/O — User I/O (bank 5) |
| Pin produk 91 | VCCIO3 — I/O supply bank 3 |
| Pin produk 92 | I/O — User I/O (bank 5) |
| Pin produk 93 | I/O — User I/O (bank 5) |
| Pin produk 94 | I/O — User I/O (bank 5) |
| Pin produk 95 | I/O — User I/O (bank 5) |
| Pin produk 96 | I/O — User I/O (bank 5) |
| Pin produk 97 | I/O — User I/O (bank 5) |
| Pin produk 98 | I/O — User I/O (bank 5) |
| Pin produk 99 | I/O — User I/O (bank 5) |
| Pin produk 100 | I/O — User I/O (bank 5) |
| Pin produk 101 | GND — Ground |
| Pin produk 102 | I/O — User I/O (bank 6) |
| Pin produk 103 | I/O — User I/O (bank 6) |
| Pin produk 104 | I/O — User I/O (bank 6) |
| Pin produk 105 | I/O — User I/O (bank 6) |
| Pin produk 106 | I/O — User I/O (bank 6) |
| Pin produk 107 | I/O — User I/O (bank 6) |
| Pin produk 108 | I/O — User I/O (bank 6) |
| Pin produk 109 | I/O — User I/O (bank 6) |
| Pin produk 110 | I/O — User I/O (bank 6) |
| Pin produk 111 | VCCIO4 — I/O supply bank 4 |
| Pin produk 112 | I/O — User I/O (bank 6) |
| Pin produk 113 | I/O — User I/O (bank 6) |
| Pin produk 114 | I/O — User I/O (bank 6) |
| Pin produk 115 | I/O — User I/O (bank 6) |
| Pin produk 116 | I/O — User I/O (bank 6) |
| Pin produk 117 | I/O — User I/O (bank 6) |
| Pin produk 118 | I/O — User I/O (bank 6) |
| Pin produk 119 | I/O — User I/O (bank 6) |
| Pin produk 120 | I/O — User I/O (bank 6) |
| Pin produk 121 | GND — Ground |
| Pin produk 122 | INPUT/GCLKIN — Global clock input / dedicated input |
| Pin produk 123 | INPUT/OE2 — Dedicated input / global OE2 |
| Pin produk 124 | INPUT/OE1 — Dedicated input / global OE1 |
| Pin produk 125 | INPUT/GCLRn — Global clear (active low) / dedicated input |
| Pin produk 126 | TDI — JTAG test data in |
| Pin produk 127 | TMS — JTAG test mode select |
| Pin produk 128 | TCK — JTAG test clock |
| Pin produk 129 | VCCINT — Core supply 3.3V |
| Pin produk 130 | TDO — JTAG test data out |
| Pin produk 131 | GND — Ground |
| Pin produk 132 | I/O — User I/O (bank 1) |
| Pin produk 133 | I/O — User I/O (bank 1) |
| Pin produk 134 | I/O — User I/O (bank 1) |
| Pin produk 135 | I/O — User I/O (bank 1) |
| Pin produk 136 | I/O — User I/O (bank 1) |
| Pin produk 137 | I/O — User I/O (bank 1) |
| Pin produk 138 | I/O — User I/O (bank 1) |
| Pin produk 139 | I/O — User I/O (bank 1) |
| Pin produk 140 | I/O — User I/O (bank 1) |
| Pin produk 141 | VCCIO5 — I/O supply bank 5 |
| Pin produk 142 | I/O — User I/O (bank 1) |
| Pin produk 143 | I/O — User I/O (bank 1) |
| Pin produk 144 | I/O — User I/O (bank 1) |
Aplikasi Umum
EPM7256AETI144-7N cocok untuk 6 aplikasis: PCI / ISA Bus Decoder and Address Mapping, Glue-Logic Replacement for 74-Series TTL, Motor and Servo Control State Machines, Industrial PLC and Process Control, Memory-Mapped Address Decoding for Microcontrollers, Legacy 5V-to-3.3V Mixed-Voltage Bridge.
PCI / ISA Bus Decoder and Address Mapping
The EPM7256AETI144-7N's 256 macrocells and 7.5 ns pin-to-pin logic delay make it ideal for ISA and legacy PCI bus decoder applications. Its instant-on non-volatile EEPROM configuration eliminates the FPGA configuration-PROM overhead, critical for systems that must respond to bus cycles within microseconds of power-up. The 5V-tolerant I/O pins interface directly to legacy 5V peripheral cards without level shifters, reducing BOM cost and board area in industrial backplane designs. Quartus II schematics typically use 40-60 macrocells for chip-select decode plus 20 macrocells for wait-state insertion, leaving headroom for future feature upgrades within the same package.
Direkomendasikan
Glue-Logic Replacement for 74-Series TTL
The EPM7256AETI144-7N consolidates multiple discrete 74LS/74HC logic devices (decoders, multiplexers, latches, flip-flops) into a single 144-pin TQFP CPLD. The 5,000 usable gates and 256 macrocells replace 8-15 standard logic packages on a typical motherboard, which reduces PCB area by 30-50% and eliminates inter-chip propagation delay skew. The deterministic 7.5 ns tPD is comparable to a 74F-series gate, so timing analysis carries over with minor margin adjustment. Industrial-grade temperature range supports factory-floor and outdoor-enclosure deployment where discrete-logic reliability is marginal.
Direkomendasikan
Motor and Servo Control State Machines
The EPM7256AETI144-7N's deterministic 126.6 MHz internal counter frequency and 36 user I/Os make it suitable for BLDC, stepper, and servo motor control state machines. The MAX 7000A macrocell flip-flops deliver glitch-free state transitions at PWM carrier frequencies up to 50 kHz, with the 5V-tolerant I/O directly driving industrial gate drivers and Hall-effect sensor inputs. Designers typically allocate 100 macrocells for the commutation state machine, 50 macrocells for PWM and fault handling, and the remaining macrocells for encoder quadrature decoding and overcurrent protection logic.
Direkomendasikan
Industrial PLC and Process Control
The EPM7256AETI144-7N operates across the -40 °C to +85 °C industrial temperature range, making it suitable for programmable logic controller (PLC) backplanes, distributed I/O modules, and process-control interfaces. Its 36 user I/Os multiplex optically-isolated 24V digital inputs and relay-driver outputs in a typical 32-channel module. The non-volatile EEPROM configuration survives power cycling without requiring a separate boot PROM, an essential feature for IEC 61131-2 industrial-control equipment that must restart deterministically after brownouts.
Direkomendasikan
Memory-Mapped Address Decoding for Microcontrollers
The EPM7256AETI144-7N's fast 7.5 ns pin-to-pin delay and abundant macrocells enable complex memory-mapped address decoding for embedded microcontrollers, including ARM7, Cortex-M3, and 8051 derivatives. Designers implement 4-8 chip-select signals plus bank-switching and wait-state generation in a single device, replacing discrete 74HC138/139/32 decoder trees. The JTAG-supported in-system programmability lets firmware engineers update the decoder map during development without reworking the PCB, and the 5V-tolerant I/O supports legacy 8051-style microcontrollers operating at 5V rails.
Direkomendasikan
Legacy 5V-to-3.3V Mixed-Voltage Bridge
The EPM7256AETI144-7N's MultiVolt I/O supporting 2.5V, 3.3V, and 5V rails in a single device makes it ideal for mixed-voltage system bridges between legacy 5V microcontrollers and modern 3.3V peripherals. VCCINT powers the core at 3.3V while VCCIO banks operate at 5V for upstream interfaces and 3.3V for downstream interfaces, eliminating discrete level-shifters. This is a common configuration in industrial-control retrofit designs where new 3.3V ADC/DAC ICs must interface with existing 5V PLC backplanes without redesigning the entire motherboard.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk EPM7256AETI144-7N — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | EPM7256AETI144-7 | EPM7256AETI144-10N | EPM7256AETC144-10N | EPM7256AETC144-7N | LC4256V-75T144E |
|---|---|---|---|---|---|---|
| Package | TQFP-144 | TQFP-144 - same | TQFP-144 - same | TQFP-144 - same | TQFP-144 - same | TQFP-144 - same |
| Brand | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Lattice Semiconductor |
| Macrocells | 256 | 256 | 256 | 256 | 256 | 256 |
| Pin-to-Pin Delay (tPD) | 7.5 ns | 7.5 ns | 10 ns | 10 ns | 7.5 ns | 7.5 ns |
| Operating Temperature | -40 °C to +85 °C (industrial) | -40 °C to +85 °C (industrial) | -40 °C to +85 °C (industrial) | 0 °C to +70 °C (commercial) | 0 °C to +70 °C (commercial) | -40 °C to +85 °C (industrial) |
| Supply Voltage (VCCINT) | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | Active |
Diferensiator Kunci
- 5V-tolerant MultiVolt I/O in active-temperature NRND status (vsMAX V CPLD family)
- 256 macrocells in TQFP-144 vs higher-pin-count alternatives (vsEPM7256AEFC256-5N)
- Active production alternative in same footprint (vsLC4256V-75T144E)
Catatan Desain
Estimated: the EPM7256AETI144-7N draws approximately 50-100 mA quiescent current from VCCINT (3.3V) when fully utilized, plus I/O switching current proportional to edge rate and load. Place a 0.1 µF ceramic decoupling capacitor within 5 mm of every VCCINT and VCCIO pin, with bulk 10-47 µF tantalum or ceramic capacitors on each supply rail. For mixed-voltage designs, tie VCCIO1 to 5V and VCCIO2 to 3.3V only after confirming the Quartus II fitter assigns signals to the correct I/O bank.
Estimated: a 144-pin TQFP routing escape requires 2 inner layers dedicated to ground and power planes. Use 50 Ω controlled-impedance traces for clock and JTAG signals, and keep TCK trace length under 50 mm to avoid JTAG boundary-scan failures. Place series-termination resistors (33 Ω) on high-frequency outputs driving long traces to reduce ground-bounce on simultaneous-switching outputs.
Do not confuse the EPM7256AETI144-7N with the EPM7256AETC144-7N (commercial temperature grade) when sourcing - the part number suffix -7N designates industrial temperature, while -7 alone with C-grade prefix may be commercial. Always verify against the Altera (Intel) ordering code before placing a production order. Also confirm the JTAG chain includes proper pull-ups on TMS and TDI per IEEE 1149.1, or in-system programming will fail intermittently.
Informasi Konformitas
RoHS and REACH status not explicitly stated in verified web data; lead-free per Altera product page. AEC-Q100 not applicable - this is a commercial/industrial-grade logic IC, not an automotive-qualified part.
