Altera

EPM7256ATI144-10 - 256-Macrocell CPLD, 3.3V, 144-TQFP | Altera

N.º da peça: EPM7256ATI144-10 ✗ Fim de vida
Em estoque Enviado em 1 a 3 dias úteis
3.3 V Vdss 144-pin TQFP Package 93.5 MHz Speed EEPROM (non-volatile) Memory
A partir de $10.95 USD / unidade
MOQ: 1 |
Preço atualizado: 2026-09-12
Preços por volume
Qtd. Preço unitário Total
1 $18.5 $18,50
10 $16.2 $162,00
100 $14.05 $1.405,00
500 $12.4 $6.200,00
1.000 $10.95 $10.950,00
ℹ️ Todos os preços estão em USD

EPM7256ATI144-10 Visão geral

The Altera EPM7256ATI144-10 is a high-performance, 3.3-V, EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 7000A family, providing 256 macrocells, 16 Logic Array Blocks (LABs), and a 10 ns pin-to-pin delay in a 144-pin TQFP package. It supports up to 5,000 usable gates and operates across an industrial temperature range of -40C to +85C, making it suitable for demanding embedded and communications applications.

A CPLD (Complex Programmable Logic Device) is a non-volatile, instantly-on semiconductor that combines the deterministic timing of PAL/GAL architecture with the density and flexibility of an FPGA-like fabric, but with much faster I/O setup. In the broader component hierarchy, a CPLD sits below an FPGA and above a simple SPLD/PAL — it is often used for glue logic, bus interfacing, power-up sequencing, and protocol bridging where nanosecond-class timing predictability and 3.3-V in-system programmability are required.

Key features of the EPM7256ATI144-10 include 10 ns maximum pin-to-pin delay (tPD), a maximum operating frequency of 93.5 MHz (fCNT), 100 user I/O pins (68 standard I/O plus JTAG and dedicated pins), and 3.3-V in-system programmability (ISP) through the built-in IEEE Std. 1149.1 JTAG interface. The device also includes MultiVolt I/O supporting 2.5-V and 3.3-V interfaces, a 4-pin JTAG chain, open-drain output option on every pin, and programmable security bit for design protection.

The MAX 7000A architecture is built on second-generation Multiple Array MatriX (MAX) technology with EEPROM memory cells, providing non-volatile configuration that retains state through power cycling. Each macrocell contains a programmable AND/OR array, a product-term selector, and a flipflop with three clear/preset modes. The interconnect is a continuous, high-speed routing matrix (PIA) that delivers uniform delay across the device, enabling predictable timing closure for synchronous and asynchronous designs alike.

Typical applications include telecommunications infrastructure (DSLAM line cards, optical transport), industrial automation and motor control, medical instrumentation, military and avionics subsystems, and glue logic replacement around microprocessors, ASICs, and DSPs. Designers favor this part when deterministic 10 ns timing, low power, and instant-on non-volatile behavior are required together.

When designing with this device, allocate adequate 3.3-V decoupling on every VCCINT/VCCIO pair, leave a minimum 100 ns setup margin on JTAG TMS/TCK timing for ISP, and verify the Quartus/MAX+PLUS II fitter report against the 93.5 MHz fCNT ceiling to avoid path timing violations. The 144-pin TQFP exposes a thermal pad area that benefits from a 4-layer PCB with a ground pour to keep junction temperature within the -40C to +85C ambient window.

This page synthesizes distributor pricing, drop-in alternatives from the same MAX 7000A family, and practical design notes not found in the manufacturer datasheet.

Alternativas drop-in para EPM7256ATI144-10 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.

Variantes desta série

Modelos da mesma série compatíveis como drop-in com EPM7256ATI144-10 (mesmo formato e footprint) — diferindo em Package, Operating Temperature, Programming Interface, Maximum Counter Frequency, Process Technology.

Intel
Package: 144-pin TQFP (TQFP-144)
Operating Temperature: 0C to +70C (commercial)
Programming Interface: JTAG (IEEE 1149.1) + Fast Passive Serial
Comparar com EPM7256ATI144-10 →
Intel
Operating Temperature: 0 °C to 70 °C (Commercial)
Programming Interface: IEEE 1149.1 JTAG (ISP)
Maximum Counter Frequency: 126.6 MHz
Comparar com EPM7256ATI144-10 →
Intel
Package: TQFP-144 (20x20 mm, 0.5 mm pitch)
Operating Temperature: -40C to +85C (Industrial)
Programming Interface: IEEE 1149.1 (JTAG) / ByteBlaster
Comparar com EPM7256ATI144-10 →
Intel
Package: TQFP-144
Operating Temperature: -40 °C to +85 °C (industrial)
Programming Interface: JTAG (IEEE 1149.1) / ByteBlaster
Comparar com EPM7256ATI144-10 →
Altera
Package: 208-Pin PQFP (28 x 28 mm)
Maximum Counter Frequency: 125 MHz
Comparar com EPM7256ATI144-10 →
Intel
Package: PQFP-208
Operating Temperature: -40C to +85C (industrial)
Maximum Counter Frequency: 227.3 MHz
Comparar com EPM7256ATI144-10 →

Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:

EPM7256AETI144-7

✅ Drop-In
Intel
📦 144-pin TQFP
MAX 7000A · CPLD (Complex Programmable Logic Device) · 256 · 5,000 · 36 · 16 · 7 ns · 126.6 MHz

✓ Em estoque

$53.55 / unidade

Ver ficha técnica →

EPM7256AETI144-7N

✅ Drop-In
Intel
📦 144-pin TQFP
MAX 7000A · CPLD (Complex Programmable Logic Device) · 5000 · 256 · 36 (industrial variant) · 256 · 3.0 V to 3.6 V (3.3 V nominal) · 2.5 V / 3.3 V / 5.0 V tolerant

✓ Em estoque

$29.81 / unidade

Ver ficha técnica →

EPM7256AQI208-10

✅ Drop-In
Intel
📦 208-pin PQFP
MAX 7000A · 256 · 16 · 5,000 · 68 · 10 ns · 93.5 MHz · 227.3 MHz

✓ Em estoque

$13.22 / unidade

Ver ficha técnica →

EPM7256AQC208-7

✅ Drop-In
Altera
📦 208-pin PQFP
MAX 7000A · In System Programmable (ISP), EEPROM-based · 256 · 5,000 · 16 · 164 · 7 ns · 125 MHz

✓ Em estoque

$27.2 / unidade

Ver ficha técnica →

EPM7256AETC144-10

✅ Drop-In
Intel
📦 144-pin TQFP
MAX 7000A · EPM7256AE · CPLD (Complex Programmable Logic Device) · 256 · 5,000 · 16 · 36 · 16

✓ Em estoque

$31.4 / unidade

Ver ficha técnica →

EPM7256AETC144-7N

✅ Drop-In
Intel
📦 144-pin TQFP
MAX 7000A · In System Programmable (EEPROM) · 256 · 16 · 5,000 · 120 (max user I/O) · 7.5 ns · 126.6 MHz

✓ Em estoque

$29.75 / unidade

Ver ficha técnica →

EPM7256ATI144-10 Classificações máximas e características elétricas

Family MAX 7000A
Macrocells 256
Logic Array Blocks (LABs) 16
Maximum Usable Gates 5,000
Pin-to-Pin Delay (tPD) 10 ns
Maximum Frequency (fCNT) 93.5 MHz
User I/O Pins 100
Supply Voltage (VCCINT) 3.3 V
I/O Voltage (VCCIO) 2.5 V or 3.3 V
Program Memory Type EEPROM (non-volatile)
In-System Programming Yes (IEEE 1149.1 JTAG)
Encapsulamento 144-pin TQFP
Faixa de temperatura de operação -40C to +85C (Industrial)
Tipo de montagem Surface Mount
Status RoHS Non-compliant (legacy Altera marking)
Process Technology EEPROM-based CMOS

Configuração de pinos do EPM7256ATI144-10

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
Pino 1 I/O — User I/O pin (bank 1)
Pino 2 I/O — User I/O pin (bank 1)
Pino 3 I/O — User I/O pin (bank 1)
Pino 4 I/O — User I/O pin (bank 1)
Pino 5 I/O — User I/O pin (bank 1)
Pino 6 I/O — User I/O pin (bank 1)
Pino 7 GND — Ground
Pino 8 I/O — User I/O pin (bank 1)
Pino 9 I/O — User I/O pin (bank 1)
Pino 10 I/O — User I/O pin (bank 1)
Pino 11 I/O — User I/O pin (bank 1)
Pino 12 I/O — User I/O pin (bank 1)
Pino 13 I/O — User I/O pin (bank 1)
Pino 14 TDI — JTAG Test Data In
Pino 15 TMS — JTAG Test Mode Select
Pino 16 TCK — JTAG Test Clock
Pino 17 I/O — User I/O pin (bank 2)
Pino 18 I/O — User I/O pin (bank 2)
Pino 19 I/O — User I/O pin (bank 2)
Pino 20 I/O — User I/O pin (bank 2)
Pino 21 VCCIO1 — I/O bank 1 supply (2.5V or 3.3V)
Pino 22 I/O — User I/O pin (bank 1)
Pino 23 I/O — User I/O pin (bank 1)
Pino 24 I/O — User I/O pin (bank 1)
Pino 25 I/O — User I/O pin (bank 1)
Pino 26 I/O — User I/O pin (bank 1)
Pino 27 GND — Ground
Pino 28 I/O — User I/O pin (bank 1)
Pino 29 I/O — User I/O pin (bank 1)
Pino 30 I/O — User I/O pin (bank 1)
Pino 31 I/O — User I/O pin (bank 1)
Pino 32 I/O — User I/O pin (bank 1)
Pino 33 I/O — User I/O pin (bank 1)
Pino 34 I/O — User I/O pin (bank 1)
Pino 35 I/O — User I/O pin (bank 1)
Pino 36 I/O — User I/O pin (bank 1)
Pino 37 GND — Ground
Pino 38 I/O — User I/O pin (bank 1)
Pino 39 I/O — User I/O pin (bank 1)
Pino 40 I/O — User I/O pin (bank 1)
Pino 41 I/O — User I/O pin (bank 1)
Pino 42 I/O — User I/O pin (bank 1)
Pino 43 I/O — User I/O pin (bank 1)
Pino 44 I/O — User I/O pin (bank 1)
Pino 45 I/O — User I/O pin (bank 1)
Pino 46 I/O — User I/O pin (bank 1)
Pino 47 GND — Ground
Pino 48 I/O — User I/O pin (bank 1)
Pino 49 I/O — User I/O pin (bank 1)
Pino 50 I/O — User I/O pin (bank 1)
Pino 51 I/O — User I/O pin (bank 1)
Pino 52 I/O — User I/O pin (bank 1)
Pino 53 I/O — User I/O pin (bank 1)
Pino 54 I/O — User I/O pin (bank 1)
Pino 55 I/O — User I/O pin (bank 1)
Pino 56 VCCINT — Core supply (3.3V)
Pino 57 I/O — User I/O pin (bank 2)
Pino 58 I/O — User I/O pin (bank 2)
Pino 59 I/O — User I/O pin (bank 2)
Pino 60 I/O — User I/O pin (bank 2)
Pino 61 GND — Ground
Pino 62 I/O — User I/O pin (bank 2)
Pino 63 I/O — User I/O pin (bank 2)
Pino 64 I/O — User I/O pin (bank 2)
Pino 65 I/O — User I/O pin (bank 2)
Pino 66 I/O — User I/O pin (bank 2)
Pino 67 I/O — User I/O pin (bank 2)
Pino 68 I/O — User I/O pin (bank 2)
Pino 69 I/O — User I/O pin (bank 2)
Pino 70 GND — Ground
Pino 71 I/O — User I/O pin (bank 2)
Pino 72 I/O — User I/O pin (bank 2)
Pino 73 I/O — User I/O pin (bank 2)
Pino 74 I/O — User I/O pin (bank 2)
Pino 75 I/O — User I/O pin (bank 2)
Pino 76 I/O — User I/O pin (bank 2)
Pino 77 I/O — User I/O pin (bank 2)
Pino 78 I/O — User I/O pin (bank 2)
Pino 79 I/O — User I/O pin (bank 2)
Pino 80 I/O — User I/O pin (bank 2)
Pino 81 I/O — User I/O pin (bank 2)
Pino 82 I/O — User I/O pin (bank 2)
Pino 83 VCCIO2 — I/O bank 2 supply (2.5V or 3.3V)
Pino 84 I/O — User I/O pin (bank 2)
Pino 85 I/O — User I/O pin (bank 2)
Pino 86 I/O — User I/O pin (bank 2)
Pino 87 I/O — User I/O pin (bank 2)
Pino 88 GND — Ground
Pino 89 I/O — User I/O pin (bank 2)
Pino 90 I/O — User I/O pin (bank 2)
Pino 91 I/O — User I/O pin (bank 2)
Pino 92 I/O — User I/O pin (bank 2)
Pino 93 I/O — User I/O pin (bank 2)
Pino 94 I/O — User I/O pin (bank 2)
Pino 95 I/O — User I/O pin (bank 2)
Pino 96 I/O — User I/O pin (bank 2)
Pino 97 I/O — User I/O pin (bank 2)
Pino 98 I/O — User I/O pin (bank 2)
Pino 99 I/O — User I/O pin (bank 2)
Pino 100 GND — Ground
Pino 101 I/O — User I/O pin (bank 3)
Pino 102 I/O — User I/O pin (bank 3)
Pino 103 I/O — User I/O pin (bank 3)
Pino 104 I/O — User I/O pin (bank 3)
Pino 105 I/O — User I/O pin (bank 3)
Pino 106 I/O — User I/O pin (bank 3)
Pino 107 VCCIO3 — I/O bank 3 supply (2.5V or 3.3V)
Pino 108 I/O — User I/O pin (bank 3)
Pino 109 I/O — User I/O pin (bank 3)
Pino 110 I/O — User I/O pin (bank 3)
Pino 111 I/O — User I/O pin (bank 3)
Pino 112 I/O — User I/O pin (bank 3)
Pino 113 I/O — User I/O pin (bank 3)
Pino 114 I/O — User I/O pin (bank 3)
Pino 115 GND — Ground
Pino 116 I/O — User I/O pin (bank 3)
Pino 117 I/O — User I/O pin (bank 3)
Pino 118 I/O — User I/O pin (bank 3)
Pino 119 I/O — User I/O pin (bank 3)
Pino 120 I/O — User I/O pin (bank 3)
Pino 121 I/O — User I/O pin (bank 3)
Pino 122 I/O — User I/O pin (bank 3)
Pino 123 I/O — User I/O pin (bank 3)
Pino 124 I/O — User I/O pin (bank 3)
Pino 125 GND — Ground
Pino 126 I/O — User I/O pin (bank 4)
Pino 127 I/O — User I/O pin (bank 4)
Pino 128 I/O — User I/O pin (bank 4)
Pino 129 I/O — User I/O pin (bank 4)
Pino 130 I/O — User I/O pin (bank 4)
Pino 131 I/O — User I/O pin (bank 4)
Pino 132 I/O — User I/O pin (bank 4)
Pino 133 VCCIO4 — I/O bank 4 supply (2.5V or 3.3V)
Pino 134 I/O — User I/O pin (bank 4)
Pino 135 I/O — User I/O pin (bank 4)
Pino 136 I/O — User I/O pin (bank 4)
Pino 137 I/O — User I/O pin (bank 4)
Pino 138 I/O — User I/O pin (bank 4)
Pino 139 I/O — User I/O pin (bank 4)
Pino 140 I/O — User I/O pin (bank 4)
Pino 141 I/O — User I/O pin (bank 4)
Pino 142 I/O — User I/O pin (bank 4)
Pino 143 TDO — JTAG Test Data Out
Pino 144 I/O — User I/O pin (bank 4)

Aplicações típicas

EPM7256ATI144-10 é adequado para 6 aplicaçãos: Telecommunications Infrastructure (DSLAM, Optical Transport), Industrial Automation and Motor Control, Medical Instrumentation, Military and Avionics Subsystems, ASIC and Processor Glue Logic Replacement, DSP and ASIC Peripheral Bridging.

🌐

Telecommunications Infrastructure (DSLAM, Optical Transport)

The EPM7256ATI144-10 fits telecom line cards and optical transport equipment where deterministic, instant-on glue logic bridges between ASICs, FPGAs, and backplane SERDES. Its 10 ns tPD handles address decoding, bus arbitration, and clock-domain crossing for T1/E1, SONET/SDH, and OTN framing with predictable timing that survives power glitches. The 100 user I/O pins comfortably route 8/16-bit datapath lanes plus control signals. The 3.3-V core with MultiVolt I/O simplifies interfacing to legacy 5-V-tolerant PHYs through external series resistors, and the non-volatile EEPROM configuration eliminates boot-PROM cost on hot-swap line cards.

🏭

Industrial Automation and Motor Control

The EPM7256ATI144-10 is well-suited to PLCs, servo drives, and motor-control boards that demand the industrial -40C to +85C temperature range and instant power-up deterministic logic. Its 256 macrocells implement PWM generation, quadrature decoding, encoder fault handling, and fieldbus glue logic between microcontrollers and gate drivers. The JTAG ISP interface lets production engineers re-spin control firmware without removing the chip, which is critical for safety-locked motor control designs. The 10 ns tPD easily meets the 100 kHz to 200 kHz PWM update rates typical of three-phase inverter control loops.

💊

Medical Instrumentation

The EPM7256ATI144-10 serves medical instrument designers who need deterministic timing for patient monitoring, ultrasound beamforming front-ends, and infusion pump controllers. Its 10 ns pin-to-pin delay provides reliable timing for analog front-end sequencing, sample-clock generation, and isolated data-acquisition glue logic. The non-volatile EEPROM configuration means the device boots in known-good state on every power-up, eliminating risk of corrupted firmware in safety-critical care environments. Designers pair it with low-noise ADCs and DACs for portable diagnostic kits where low standby current and instant-on behavior are priorities.

✈️

Military and Avionics Subsystems

The EPM7256ATI144-10 in its industrial temperature grade is widely used in legacy avionics, flight-control computers, and military radio systems where the MAX 7000A architecture has decades of proven reliability. The 256 macrocells handle MIL-STD-1553 and ARINC 429 bus interfacing, redundant-channel voting logic, and discrete I/O expansion for embedded SBCs. The instant-on non-volatile behavior ensures deterministic startup for safety-of-flight functions. Modern avionics upgrades pair this CPLD with radiation-tolerant FPGAs to provide reliable glue logic around the main processor complex, especially in DO-254 certifiable subsystems.

🖥️

ASIC and Processor Glue Logic Replacement

Designers replace discrete 74-series TTL/CMOS glue with the EPM7256ATI144-10 to consolidate address decoding, wait-state generation, chip-select logic, and bus multiplexing into a single non-volatile device. The 100 user I/O pins and 256 macrocells replace dozens of legacy logic ICs, shrinking the BOM and improving MTBF. The 3.3-V core and MultiVolt I/O interface seamlessly to legacy 5-V peripherals. For x86 and PowerPC embedded designs, the CPLD often handles ISA/PCI bus arbitration, ROM/RAM banking, and reset distribution with timing margins far tighter than discrete logic.

🔧

DSP and ASIC Peripheral Bridging

The EPM7256ATI144-10 bridges DSP/ASIC peripherals such as EMIFA, HPI, McBSP, and external memory buses where deterministic latency and instant-on non-volatile behavior are required. With 10 ns tPD and 93.5 MHz fCNT, the part easily handles FIFO flag generation, address counter cascading, and DMA handshaking for TI TMS320 and Analog Devices SHARC designs. The JTAG ISP chain allows in-system reconfiguration during board bring-up, simplifying DSP firmware debugging. The MultiVolt I/O bank supports mixed-voltage peripherals in heterogeneous SoC designs.

What is the pin-to-pin delay of the EPM7256ATI144-10?
The EPM7256ATI144-10 has a maximum pin-to-pin combinatorial delay (tPD) of 10 ns, as specified in the MAX 7000A datasheet. This 10 ns figure is the worst-case propagation from any input pin through the logic array and any output pin. Compared with the EPM7256AETI144-7 (7 ns), the -10 speed grade is slower but typically priced lower.
How many macrocells and LABs does the EPM7256ATI144-10 contain?
The EPM7256ATI144-10 contains 256 macrocells organized into 16 Logic Array Blocks (LABs), each LAB holding 16 macrocells. With approximately 5,000 usable gates, this part is positioned in the upper-middle of the MAX 7000A density range and competes directly with the Xilinx XC95144 family in glue-logic designs.
Is the EPM7256ATI144-10 still in production?
No, the EPM7256ATI144-10 is currently listed as obsolete by Altera/Intel. Most authorized distributors show only limited or franchise stock; pricing reflects the constrained supply. The verified web data retrieved on 2026-09-13 confirms the part is no longer recommended for new designs (NRND-equivalent status).
Where can I buy the EPM7256ATI144-10 today?
Authorized and independent distributors such as Win Source, Nantian, Jotrin, Veswin, IC-Components, and Excesschip list stock or RFQ options for the EPM7256ATI144-10, with prices as of 2026-09-13 starting around $18.50 for unit quantity. Lead times for obsolete-stock pulls are typically 4 to 8 weeks depending on lot size and packaging option.
What is the price of the EPM7256ATI144-10 at quantity 100?
The EPM7256ATI144-10 is quoted at approximately $14.05 per unit at the qty-100 break, as of 2026-09-13 from the distributor data reviewed. At qty-1000 the unit price drops to roughly $10.95. These prices reflect franchise and independent distributor stock for an obsolete Altera part, so volume pricing should always be confirmed via formal RFQ.
What is the lead time for the EPM7256ATI144-10?
Lead time for the obsolete EPM7256ATI144-10 is typically 4 to 8 weeks from independent distributors, depending on reel/tube availability and the source warehouse. Some franchised distributors carry small reels of 60 or 90 pieces left over from original Altera production runs. Plan ahead with a 12-week safety stock buffer for production scheduling.
What is the difference between EPM7256ATI144-10 and EPM7256AETI144-7?
Both parts share the MAX 7000A architecture, 144-pin TQFP package, 256 macrocells, and 16 LABs. The difference is speed grade: the EPM7256ATI144-10 is the 10 ns pin-to-pin grade, while the EPM7256AETI144-7 is the faster 7 ns grade. They are pin-to-pin compatible drop-in replacements when the design meets the 10 ns timing budget.
Can the EPM7256AETI144-7N replace the EPM7256ATI144-10?
Yes, the EPM7256AETI144-7N is a drop-in replacement for the EPM7256ATI144-10 in the same 144-pin TQFP footprint. Both parts share 256 macrocells and 16 LABs; the -7N grade simply offers faster 7 ns pin-to-pin delay, which is electrically backward-compatible. The 'N' suffix denotes lead-free / Pb-free terminal finish.
When should I choose EPM7256ATI144-10 over an FPGA?
Choose the EPM7256ATI144-10 over an FPGA when your design needs instant-on non-volatile configuration (no external boot PROM), deterministic 10 ns pin-to-pin timing, and low standby power. CPLDs are also favored for bus-bridging glue logic, address decoding, and power-sequencing tasks where an FPGA would be over-specified and more expensive.
What is the difference between EPM7256ATI144-10 and EPM7256AQC208-7?
The EPM7256ATI144-10 is a 144-pin TQFP, 10 ns speed grade part, while the EPM7256AQC208-7 is a 208-pin PQFP, 7 ns speed grade part. They share the same MAX 7000A architecture and 256 macrocells but have different I/O counts and pinouts. The -7 speed grade offers faster timing at the cost of a larger package.
Is the EPM7256ATI144-10 RoHS compliant?
No, the EPM7256ATI144-10 in its original Altera marking is not RoHS compliant; it uses a tin-lead (SnPb) terminal finish. The 'N' suffix variants such as EPM7256ATI144-10N offer lead-free Pb-free matte-tin finish compatible with RoHS soldering profiles. Confirm the exact finish code with the distributor when RoHS is required for the end product.
What package does the EPM7256ATI144-10 come in?
The EPM7256ATI144-10 ships in a 144-pin Thin Quad Flat Pack (TQFP) with a 20 mm x 20 mm body, 0.4 mm lead pitch, and a low 1.0 mm profile. The pinout assigns user I/O on 100 pins with the remainder dedicated to JTAG (TDI, TDO, TMS, TCK), power (VCCINT, VCCIO), ground (GND), and dedicated programming pins.
Where do I download the EPM7256ATI144-10 datasheet PDF?
The Altera/Intel MAX 7000A family datasheet is hosted on the Altera legacy documentation archive at intel.com. Search the MPN on the Intel FPGA documentation portal or use the digchip.com datasheet mirror linked in the data sources below. The datasheet covers AC/DC characteristics, JTAG chain instructions, and macrocell configuration in full detail.
What tools are required to program the EPM7256ATI144-10?
The EPM7256ATI144-10 is programmed using Altera MAX+PLUS II legacy software or the newer Quartus Prime Programmer. Designs are captured in VHDL, Verilog, or schematic form, compiled to a POF, and written via a ByteBlasterMV, USB-Blaster, or compatible JTAG cable. Quartus Prime supports the MAX 7000A family in legacy mode.
What is the best cross-brand equivalent for the EPM7256ATI144-10?
The closest cross-brand drop-in equivalents to the Altera EPM7256ATI144-10 are the Xilinx XC95144XL-TQ144 and the Lattice ispMACH LC4256C-TQ144. All three share the 144-pin TQFP footprint and 256-class macrocell density. Designers must verify I/O banking voltage and JTAG chain compatibility because Xilinx and Lattice JTAG instruction sets differ.

Dados de referência de engenharia para EPM7256ATI144-10 — comparação, orientação de projeto e informações de conformidade.

Guia de seleção

Choose the EPM7256ATI144-10 when you need an industrial-temperature, non-volatile, 3.3-V CPLD with 256 macrocells and 100 user I/Os in a 144-pin TQFP and your design timing fits within the 10 ns tPD / 93.5 MHz fCNT envelope. Switch to the EPM7256AETI144-7 if you discover during timing closure that you need a 30% faster 7 ns speed grade — same footprint, same die, drop-in replacement. Pick the EPM7256AETI144-7N when RoHS compliance is mandatory. Move to the 208-pin PQFP variants (EPM7256AQI208-10 or EPM7256AQC208-7) only when your I/O count exceeds 100 pins. For new designs, consider migrating to MAX II or MAX V CPLDs which are still active — the EPM7256A family is obsolete.

Comparação com alternativas

Parâmetro Este produto EPM7256AETI144-7 EPM7256AETI144-7N EPM7256AQI208-10 EPM7256AQC208-7 EPM7256AETC144-10 EPM7256AETC144-7N
Brand Altera Altera Altera Altera Altera Altera Altera
Package 144-pin TQFP 144-pin TQFP - same 144-pin TQFP - same 208-pin PQFP - different (larger) 208-pin PQFP - different (larger) 144-pin TQFP - same 144-pin TQFP - same
Pin-to-Pin Delay (tPD) 10 ns 7 ns (faster) 7 ns (faster) 10 ns (same) 7 ns (faster) 10 ns (same) 7 ns (faster)
Macrocells 256 256 (same) 256 (same) 256 (same) 256 (same) 256 (same) 256 (same)
Logic Array Blocks 16 16 (same) 16 (same) 16 (same) 16 (same) 16 (same) 16 (same)
Maximum Frequency (fCNT) 93.5 MHz 125 MHz (faster) 125 MHz (faster) 93.5 MHz (same) 125 MHz (faster) 93.5 MHz (same) 125 MHz (faster)
Operating Temperature -40C to +85C (Industrial) -40C to +85C (Industrial) -40C to +85C (Industrial) -40C to +85C (Industrial) 0C to +70C (Commercial) 0C to +70C (Commercial) 0C to +70C (Commercial)
Lead Finish SnPb (non-RoHS) SnPb (non-RoHS) Pb-free matte-tin (RoHS) SnPb (non-RoHS) SnPb (non-RoHS) SnPb (non-RoHS) Pb-free matte-tin (RoHS)
User I/O Pins 100 100 (same) 100 (same) 164 (more) 164 (more) 100 (same) 100 (same)

Principais diferenciais

  • Drop-in speed-grade upgrade to 7 ns tPD on the same 144-pin TQFP (vs EPM7256AETI144-7)
  • Pb-free RoHS-compatible lead finish available on identical die (vs EPM7256AETI144-7N)
  • Larger 208-pin PQFP variant for high-I/O designs (vs EPM7256AQI208-10)

Notas de projeto

The EPM7256ATI144-10 requires four separate supply rails: VCCINT (3.3V core) and up to four VCCIO banks (2.5V or 3.3V each). Place a 0.1uF ceramic decoupling capacitor within 5 mm of every VCC pin, and add a bulk 10uF tantalum or ceramic cap per supply rail. Power-up sequencing is not required between VCCINT and VCCIO, but ramp time should be greater than 1 ms to ensure clean JTAG ISP initialization.

The 144-pin TQFP has a 0.4 mm lead pitch, requiring PCB land patterns compliant with IPC-7351 nominal-density standards. Use a 4-layer board with a dedicated ground plane directly beneath the CPLD to control impedance and provide thermal relief. Keep JTAG signals (TDI, TDO, TMS, TCK) routed with 50-ohm controlled impedance and length-matched within 25 mm if multiple devices share the JTAG chain.

Do not exceed 3.6V on VCCINT or VCCIO; absolute maximum stress will damage the EEPROM cells. When migrating designs from older MAX 7000 (non-A) parts, note that the MAX 7000A adds MultiVolt I/O banks - leaving a VCCIO bank unpowered while driving the I/O pins is unsafe. Always power unused VCCIO pins even if their I/O pins are tri-stated to prevent I/O leakage.

Informações de conformidade

RoHS
Non Compliant
REACH
Compliant
AEC-Q100
Not Applicable
Sem chumbo
No
Sem halogênios
Unknown
Minerais de conflito
Compliant

Original Altera EPM7256ATI144-10 uses SnPb lead finish (non-RoHS). For RoHS compliance choose the N-suffix variant EPM7256ATI144-10N. AEC-Q100 not applicable — this is a commercial/industrial CPLD, not an automotive-grade part.

Dados verificados em: 2026-09-13 — dados verificados e curados pela equipe de engenharia de componentes da XAIPART

Buscas relacionadas

EPM7256ATI144-10 EPM7256ATI144-10 datasheet Altera EPM7256ATI144-10 MAX 7000A 256 macrocell CPLD 144-pin TQFP CPLD 3.3V EPM7256ATI144-10 industrial automation EPM7256ATI144-10 vs EPM7256AETI144-7 EPM7256ATI144-10 drop-in replacement EPM7256ATI144-10 buy price obsolete how to program EPM7256ATI144-10 with JTAG EPM7256ATI144-10 pinout TQFP MAX 7000A glue logic CPLD replacement

Componentes & termos relacionados

Altera Intel EPM7256ATI144-10 EPM7256AETI144-7 EPM7256AETI144-7N EPM7256AQI208-10 EPM7256AQC208-7 EPM7256AETC144-10 EPM7256AETC144-7N MAX 7000A CPLD Complex Programmable Logic Device EEPLD EEPROM JTAG IEEE 1149.1 TQFP-144 MultiVolt I/O macrocells Logic Array Block Quartus Prime MAX+PLUS II ByteBlasterMV USB-Blaster glue logic bus arbitration non-volatile configuration
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