EPM7256AQI208-10 - 256-Macrocell MAX 7000A CPLD, 10ns, PQFP-208 | Intel
MPN: EPM7256AQI208-10 ✗ اختتامِ زندگیEPM7256AQI208-10 جائزہ
A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic IC that combines the instant-on behavior, deterministic timing, and single-chip simplicity of traditional PAL/GAL architectures with the density and macrocell richness of small FPGAs. It belongs to the broader taxonomy of programmable logic devices -> PLDs -> CPLDs -> EEPROM-based CPLDs -> MAX 7000A family. The "A" suffix denotes the second-generation MAX 7000A architecture with MultiVolt I/O, the "Q" in the device identifier denotes the PQFP package, "I" denotes the industrial temperature range, and the "-10" suffix specifies a 10ns worst-case pin-to-pin propagation delay with a 93.5 MHz maximum internal counter frequency.
Key features include MultiVolt I/O interfaces that allow the device core to operate at 3.3V while I/O banks remain compatible with 5.0V, 3.3V, and 2.5V logic levels; 4.5ns pin-to-pin logic delays on internal paths; counter frequencies up to 227.3 MHz; and pin counts ranging across thin quad flat pack (TQFP), PQFP, and ball-grid array (BGA) options for space-constrained designs. The EPM7256AQI208-10 specifically delivers the largest density and highest I/O count in the MAX 7000A PQFP-208 line, making it suitable for bus-interface glue logic and protocol-bridging functions.
Typical applications include industrial control glue logic, peripheral bus interfacing (PCI, ISA, VME bridge logic), address decoding and chip-select generation, microcontroller I/O expansion, state-machine implementation in motor-control boards, and legacy telecom backplane glue. Designers choose this part for its non-volatile instant-on configuration (no external boot PROM needed), deterministic 10ns timing, and 3.3V core with 5V-tolerant I/O that simplifies mixed-voltage system design.
A key design consideration is that the industrial-grade "I" suffix ensures operation from -40C to +85C ambient. Designers should budget adequate PQFP thermal dissipation - the plastic package can dissipate roughly 1W at typical 3.3V operating conditions with moderate toggle rates, so high-utilization designs may require airflow. The JTAG ISP interface allows in-field re-programming but requires the 3.3V VCCIO rail to be stable during ISP cycles.
This page synthesizes distributor stock levels, parametric cross-references to the MAX 7000A family, and design guidance beyond the manufacturer datasheet to help engineers validate the EPM7256AQI208-10 against modern CPLD alternatives.
کے لیے ڈراپ اِن متبادل EPM7256AQI208-10 — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں EPM7256AQI208-10 (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, RoHS Status, Operating Temperature, Maximum Internal Frequency, User I/O Pins.
EPM7256AQC208-7
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →EPM7256AEQC208-5N
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →EPM7256AQC208-10
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہ📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
EPM7256AEFC256-7
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہ📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
EPM7256AEQI208-7N
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →EPM3256AQC208-10N
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →EPM7256AQI208-10 زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Family | MAX 7000A |
| Macrocells | 256 |
| Logic Array Blocks (LABs) | 16 |
| Usable Gates | 5,000 |
| User I/O Pins | 68 |
| Pin-to-Pin Propagation Delay | 10 ns |
| Maximum Internal Frequency | 93.5 MHz |
| Maximum Counter Frequency | 227.3 MHz |
| Supply Voltage (Core) | 3.3 V |
| I/O Logic Compatibility | 5.0 V, 3.3 V, 2.5 V (MultiVolt) |
| پیکیج | PQFP-208 |
| Programmability | EEPROM, in-system via JTAG (IEEE 1149.1) |
| آپریٹنگ درجہ حرارت | -40C to +85C (industrial) |
| Process Technology | CMOS, EEPROM-based |
| RoHS اسٹیٹس | Compliant (lead-free per distributor data) |
EPM7256AQI208-10 پن کنفیگریشن
| پن 1 | I/O — User I/O - bank 1 |
| پن 2 | I/O — User I/O - bank 1 |
| پن 3 | I/O — User I/O - bank 1 |
| پن 4 | I/O — User I/O - bank 1 |
| پن 5 | I/O — User I/O - bank 1 |
| پن 6 | GND — Ground |
| پن 7 | I/O — User I/O - bank 1 |
| پن 8 | I/O — User I/O - bank 1 |
| پن 9 | I/O — User I/O - bank 1 |
| پن 10 | I/O — User I/O - bank 1 |
| پن 11 | I/O — User I/O - bank 1 |
| پن 12 | VCCIO1 — I/O bank 1 supply voltage |
| پن 13 | I/O — User I/O - bank 1 |
| پن 14 | I/O — User I/O - bank 1 |
| پن 15 | I/O — User I/O - bank 1 |
| پن 16 | I/O — User I/O - bank 1 |
| پن 17 | I/O — User I/O - bank 1 |
| پن 18 | GND — Ground |
| پن 19 | I/O — User I/O - bank 1 |
| پن 20 | I/O — User I/O - bank 1 |
| پن 21 | I/O — User I/O - bank 1 |
| پن 22 | I/O — User I/O - bank 1 |
| پن 23 | I/O — User I/O - bank 1 |
| پن 24 | VCCIO1 — I/O bank 1 supply voltage |
| پن 25 | I/O — User I/O - bank 1 |
| پن 26 | I/O — User I/O - bank 1 |
| پن 27 | I/O — User I/O - bank 1 |
| پن 28 | I/O — User I/O - bank 1 |
| پن 29 | I/O — User I/O - bank 1 |
| پن 30 | GND — Ground |
| پن 31 | I/O — User I/O - bank 1 |
| پن 32 | I/O — User I/O - bank 1 |
| پن 33 | I/O — User I/O - bank 1 |
| پن 34 | I/O — User I/O - bank 1 |
| پن 35 | I/O — User I/O - bank 1 |
| پن 36 | VCCIO1 — I/O bank 1 supply voltage |
| پن 37 | I/O — User I/O - bank 1 |
| پن 38 | I/O — User I/O - bank 1 |
| پن 39 | I/O — User I/O - bank 1 |
| پن 40 | I/O — User I/O - bank 1 |
| پن 41 | I/O — User I/O - bank 1 |
| پن 42 | GND — Ground |
| پن 43 | I/O — User I/O - bank 1 |
| پن 44 | I/O — User I/O - bank 1 |
| پن 45 | I/O — User I/O - bank 1 |
| پن 46 | I/O — User I/O - bank 1 |
| پن 47 | I/O — User I/O - bank 1 |
| پن 48 | VCCIO1 — I/O bank 1 supply voltage |
| پن 49 | I/O — User I/O - bank 1 |
| پن 50 | I/O — User I/O - bank 1 |
| پن 51 | I/O — User I/O - bank 1 |
| پن 52 | I/O — User I/O - bank 1 |
| پن 53 | I/O — User I/O - bank 1 |
| پن 54 | GND — Ground |
| پن 55 | I/O — User I/O - bank 2 |
| پن 56 | I/O — User I/O - bank 2 |
| پن 57 | I/O — User I/O - bank 2 |
| پن 58 | I/O — User I/O - bank 2 |
| پن 59 | I/O — User I/O - bank 2 |
| پن 60 | VCCIO2 — I/O bank 2 supply voltage |
| پن 61 | I/O — User I/O - bank 2 |
| پن 62 | I/O — User I/O - bank 2 |
| پن 63 | I/O — User I/O - bank 2 |
| پن 64 | I/O — User I/O - bank 2 |
| پن 65 | I/O — User I/O - bank 2 |
| پن 66 | GND — Ground |
| پن 67 | I/O — User I/O - bank 2 |
| پن 68 | I/O — User I/O - bank 2 |
| پن 69 | I/O — User I/O - bank 2 |
| پن 70 | I/O — User I/O - bank 2 |
| پن 71 | I/O — User I/O - bank 2 |
| پن 72 | VCCIO2 — I/O bank 2 supply voltage |
| پن 73 | I/O — User I/O - bank 2 |
| پن 74 | I/O — User I/O - bank 2 |
| پن 75 | I/O — User I/O - bank 2 |
| پن 76 | I/O — User I/O - bank 2 |
| پن 77 | I/O — User I/O - bank 2 |
| پن 78 | GND — Ground |
| پن 79 | TDI — JTAG Test Data In |
| پن 80 | TMS — JTAG Test Mode Select |
| پن 81 | TCK — JTAG Test Clock |
| پن 82 | VCC — Core supply voltage (3.3V) |
| پن 83 | TDO — JTAG Test Data Out |
| پن 84 | GND — Ground |
| پن 85 | I/O — User I/O - bank 3 |
| پن 86 | I/O — User I/O - bank 3 |
| پن 87 | I/O — User I/O - bank 3 |
| پن 88 | I/O — User I/O - bank 3 |
| پن 89 | I/O — User I/O - bank 3 |
| پن 90 | VCCIO3 — I/O bank 3 supply voltage |
| پن 91 | I/O — User I/O - bank 3 |
| پن 92 | I/O — User I/O - bank 3 |
| پن 93 | I/O — User I/O - bank 3 |
| پن 94 | I/O — User I/O - bank 3 |
| پن 95 | I/O — User I/O - bank 3 |
| پن 96 | GND — Ground |
| پن 97 | I/O — User I/O - bank 3 |
| پن 98 | I/O — User I/O - bank 3 |
| پن 99 | I/O — User I/O - bank 3 |
| پن 100 | I/O — User I/O - bank 3 |
| پن 101 | I/O — User I/O - bank 3 |
| پن 102 | VCCIO3 — I/O bank 3 supply voltage |
| پن 103 | I/O — User I/O - bank 3 |
| پن 104 | I/O — User I/O - bank 3 |
| پن 105 | I/O — User I/O - bank 3 |
| پن 106 | I/O — User I/O - bank 3 |
| پن 107 | I/O — User I/O - bank 3 |
| پن 108 | GND — Ground |
| پن 109 | I/O — User I/O - bank 3 |
| پن 110 | I/O — User I/O - bank 3 |
| پن 111 | I/O — User I/O - bank 3 |
| پن 112 | I/O — User I/O - bank 3 |
| پن 113 | I/O — User I/O - bank 3 |
| پن 114 | VCCIO3 — I/O bank 3 supply voltage |
| پن 115 | I/O — User I/O - bank 3 |
| پن 116 | I/O — User I/O - bank 3 |
| پن 117 | I/O — User I/O - bank 3 |
| پن 118 | I/O — User I/O - bank 3 |
| پن 119 | I/O — User I/O - bank 3 |
| پن 120 | GND — Ground |
| پن 121 | GCLK2 — Global clock input 2 |
| پن 122 | OE2 — Output enable 2 |
| پن 123 | I/O — User I/O - bank 4 |
| پن 124 | I/O — User I/O - bank 4 |
| پن 125 | I/O — User I/O - bank 4 |
| پن 126 | I/O — User I/O - bank 4 |
| پن 127 | I/O — User I/O - bank 4 |
| پن 128 | VCCIO4 — I/O bank 4 supply voltage |
| پن 129 | I/O — User I/O - bank 4 |
| پن 130 | I/O — User I/O - bank 4 |
| پن 131 | I/O — User I/O - bank 4 |
| پن 132 | I/O — User I/O - bank 4 |
| پن 133 | I/O — User I/O - bank 4 |
| پن 134 | GND — Ground |
| پن 135 | I/O — User I/O - bank 4 |
| پن 136 | I/O — User I/O - bank 4 |
| پن 137 | I/O — User I/O - bank 4 |
| پن 138 | I/O — User I/O - bank 4 |
| پن 139 | I/O — User I/O - bank 4 |
| پن 140 | VCCIO4 — I/O bank 4 supply voltage |
| پن 141 | I/O — User I/O - bank 4 |
| پن 142 | I/O — User I/O - bank 4 |
| پن 143 | I/O — User I/O - bank 4 |
| پن 144 | I/O — User I/O - bank 4 |
| پن 145 | I/O — User I/O - bank 4 |
| پن 146 | GND — Ground |
| پن 147 | I/O — User I/O - bank 4 |
| پن 148 | I/O — User I/O - bank 4 |
| پن 149 | I/O — User I/O - bank 4 |
| پن 150 | I/O — User I/O - bank 4 |
| پن 151 | I/O — User I/O - bank 4 |
| پن 152 | VCCIO4 — I/O bank 4 supply voltage |
| پن 153 | I/O — User I/O - bank 4 |
| پن 154 | I/O — User I/O - bank 4 |
| پن 155 | I/O — User I/O - bank 4 |
| پن 156 | I/O — User I/O - bank 4 |
| پن 157 | I/O — User I/O - bank 4 |
| پن 158 | GND — Ground |
| پن 159 | I/O — User I/O - bank 4 |
| پن 160 | I/O — User I/O - bank 4 |
| پن 161 | I/O — User I/O - bank 4 |
| پن 162 | I/O — User I/O - bank 4 |
| پن 163 | I/O — User I/O - bank 4 |
| پن 164 | VCCIO4 — I/O bank 4 supply voltage |
| پن 165 | I/O — User I/O - bank 4 |
| پن 166 | I/O — User I/O - bank 4 |
| پن 167 | I/O — User I/O - bank 4 |
| پن 168 | I/O — User I/O - bank 4 |
| پن 169 | I/O — User I/O - bank 4 |
| پن 170 | GND — Ground |
| پن 171 | I/O — User I/O - bank 4 |
| پن 172 | I/O — User I/O - bank 4 |
| پن 173 | I/O — User I/O - bank 4 |
| پن 174 | I/O — User I/O - bank 4 |
| پن 175 | I/O — User I/O - bank 4 |
| پن 176 | VCCIO4 — I/O bank 4 supply voltage |
| پن 177 | I/O — User I/O - bank 4 |
| پن 178 | I/O — User I/O - bank 4 |
| پن 179 | I/O — User I/O - bank 4 |
| پن 180 | I/O — User I/O - bank 4 |
| پن 181 | I/O — User I/O - bank 4 |
| پن 182 | GND — Ground |
| پن 183 | GCLK1 — Global clock input 1 |
| پن 184 | OE1 — Output enable 1 |
| پن 185 | I/O — User I/O - bank 1 |
| پن 186 | I/O — User I/O - bank 1 |
| پن 187 | I/O — User I/O - bank 1 |
| پن 188 | I/O — User I/O - bank 1 |
| پن 189 | I/O — User I/O - bank 1 |
| پن 190 | VCCIO1 — I/O bank 1 supply voltage |
| پن 191 | I/O — User I/O - bank 1 |
| پن 192 | I/O — User I/O - bank 1 |
| پن 193 | I/O — User I/O - bank 1 |
| پن 194 | I/O — User I/O - bank 1 |
| پن 195 | I/O — User I/O - bank 1 |
| پن 196 | GND — Ground |
| پن 197 | I/O — User I/O - bank 1 |
| پن 198 | I/O — User I/O - bank 1 |
| پن 199 | I/O — User I/O - bank 1 |
| پن 200 | I/O — User I/O - bank 1 |
| پن 201 | I/O — User I/O - bank 1 |
| پن 202 | VCCIO1 — I/O bank 1 supply voltage |
| پن 203 | I/O — User I/O - bank 1 |
| پن 204 | I/O — User I/O - bank 1 |
| پن 205 | I/O — User I/O - bank 1 |
| پن 206 | I/O — User I/O - bank 1 |
| پن 207 | I/O — User I/O - bank 1 |
| پن 208 | GND — Ground |
عام استعمالات
EPM7256AQI208-10 کے لیے موزوں ہے 6 ایپلیکیشنs: Industrial Control Glue Logic, Peripheral Bus Interface Bridging, Address Decoding and Chip-Select Generation, Motor Control State Machines, Legacy Telecom Backplane Glue Logic, Microcontroller I/O Expansion.
Industrial Control Glue Logic
The EPM7256AQI208-10's 256 macrocells and 68 I/O pins make it ideal for industrial control boards where deterministic 10ns timing and instant-on EEPROM configuration are required. Its MultiVolt I/O lets it interface to legacy 5V sensors and 3.3V microcontrollers on the same PCB without level shifters. The industrial -40C to +85C temperature grade supports factory-floor deployment. With 227.3 MHz counter frequency, it can drive high-speed encoder and PWM control loops while the JTAG ISP interface enables in-field firmware updates during commissioning.
تجویز کردہ
Peripheral Bus Interface Bridging
The 68 user I/O pins of the EPM7256AQI208-10 enable direct bridging between legacy peripheral buses (ISA, VME, PC/104) and modern 3.3V processor buses, eliminating the need for multiple discrete glue-logic chips. Its 10ns pin-to-pin delay ensures deterministic bus-arbitration and chip-select generation timing across the full industrial temperature range. The non-volatile EEPROM configuration means no boot-PROM is required, reducing BOM cost and board footprint in embedded computing designs.
تجویز کردہ
Address Decoding and Chip-Select Generation
The EPM7256AQI208-10 is well suited to generating chip-select signals for memory-mapped peripherals in 16-bit and 32-bit embedded systems, with 256 macrocells providing ample capacity for complex address maps. Its 10ns propagation delay matches the access-time budgets of most SRAM, Flash, and peripheral devices used in industrial controllers. The MultiVolt I/O permits direct interface to 5V memory banks from a 3.3V processor without external buffers, simplifying board layout.
تجویز کردہ
Motor Control State Machines
The EPM7256AQI208-10's deterministic timing and 227.3 MHz internal counter frequency enable precise PWM and stepper-motor state-machine implementation in industrial motor-control applications. Its 68 I/O pins easily accommodate multi-axis encoder inputs, Hall-sensor feedback, and PWM outputs for 3-phase inverter control. The industrial temperature range supports under-hood and factory-cabinet environments where ambient temperatures can exceed 70C during operation.
تجویز کردہ
Legacy Telecom Backplane Glue Logic
Telecom backplanes often require 5V-tolerant I/O and deterministic timing for TDM bus arbitration and clock-distribution functions - exactly the role the EPM7256AQI208-10 was designed for. Its 256 macrocells handle full backplane address decoding while 68 I/O pins support multiple TDM framers and serializers. The JTAG ISP interface allows board-level diagnostics without removing the part, critical for high-availability telecom infrastructure.
تجویز کردہ
Microcontroller I/O Expansion
The EPM7256AQI208-10 can serve as a high-density I/O expander for microcontrollers that lack sufficient GPIO pins, providing 68 additional user I/O with deterministic read/write timing. The JTAG interface allows firmware updates without reprogramming the host microcontroller, simplifying field maintenance. MultiVolt I/O enables direct interface to 5V microcontrollers or 3.3V ARM Cortex-M devices on the same board.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا EPM7256AQI208-10 — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | EPM7256AQC208-7 | EPM7256AEQC208-5N | EPM3256AQC208-10N | EPM7256AEQI208-7N |
|---|---|---|---|---|---|
| Package | PQFP-208 | PQFP-208 (same) | PQFP-208 (same) | PQFP-208 (same) | PQFP-208 (same) |
| Brand | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) |
| Pin-to-Pin Delay | 10 ns | 7 ns (-30%) | 5 ns (-50%) | 10 ns (same) | 7 ns (-30%) |
| Macrocells | 256 | 256 (same) | 256 (same) | 256 (same) | 256 (same) |
| User I/O Pins | 68 | 68 (same) | 68 (same) | 68 (same) | 68 (same) |
| Operating Temperature | -40C to +85C (industrial) | 0C to +70C (commercial) | 0C to +70C (commercial) | 0C to +70C (commercial) | -40C to +85C (industrial) |
| Maximum Counter Frequency | 227.3 MHz | 285.7 MHz | 333.3 MHz | 227.3 MHz | 285.7 MHz |
| Core Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND |
| Family | MAX 7000A | MAX 7000A | MAX 7000AE | MAX 3000A | MAX 7000AE |
اہم امتیازی خصوصیات
- Industrial temperature range with full -40C to +85C operation (بمقابلہEPM7256AQC208-7)
- Largest macrocell density in MAX 7000A PQFP-208 line (بمقابلہEPM7256AETI144-7N)
- MultiVolt I/O for 5V/3.3V/2.5V mixed-voltage interfacing (بمقابلہEPM3256AQC208-10N)
ڈیزائن نوٹس
The EPM7256AQI208-10 requires a stable 3.3V core supply (VCC) and four independent I/O bank supplies (VCCIO1-VCCIO4) which may be set to 2.5V, 3.3V, or 5.0V depending on the logic family being interfaced. Decoupling: place one 0.1uF ceramic capacitor near each VCC and VCCIO pin, plus a bulk 10-100uF tantalum or polymer capacitor at the board's power entry. Estimated: with 68 I/O toggling at 10 MHz and 50% utilization, I/O current draw is approximately 100-200 mA on the VCCIO rails; budget the 3.3V regulator accordingly. During JTAG ISP, all VCCIO rails must remain stable to prevent programming errors.
The PQFP-208 plastic package has a typical theta-JA of approximately 25-35 C/W depending on PCB copper area. Estimated: at 100 mA I/O current with all banks driving 5V outputs into 50pF loads at 10 MHz, internal dissipation can reach 0.5-1.0W, producing a 12-35C junction-temperature rise above ambient at room temperature. For full industrial -40C to +85C operation, ensure the design includes at least 4 square inches of ground-plane copper under the PQFP to keep junction temperatures within spec. Avoid placing the CPLD near board-edge heat sinks or other high-power devices.
Place the EPM7256AQI208-10 close to its associated microcontrollers or bus devices to minimize signal-trace lengths; keep high-speed GCLK traces under 25mm to avoid reflections. Use controlled-impedance routing (typically 50-ohm microstrip or stripline) for GCLK1, GCLK2, and any clock-distribution outputs above 50 MHz. Separate analog and digital ground planes if mixing 5V analog signals into the I/O banks, joining them only at a single star-point near the CPLD's GND pins. Reserve JTAG pins (TDI, TMS, TCK, TDO) on a dedicated header or test pad for in-system programming access.
Do not exceed the absolute-maximum VCCIO voltage of 5.5V on any I/O bank or the part may suffer permanent damage. Note that the 10ns pin-to-pin delay is the worst-case over the full industrial temperature range; designs targeting the highest commercial-temperature timing margins should specify the 7ns -7 speed grade (EPM7256AQC208-7). When migrating from commercial-grade MAX 7000A parts, ensure the new device's MultiVolt I/O bank voltages match the legacy circuit - the 'E' suffix variants (e.g., EPM7256AEQC208-5N) have enhanced MultiVolt features that differ subtly from the non-'E' parts. Always confirm pinout compatibility before substituting between PQFP-208 and FineLine BGA packages.
تعمیل کی معلومات
RoHS-compliant per distributor listings (Altera-Price.com confirms lead-free / RoHS status). AEC-Q100 automotive qualification not specified - this is an industrial-grade part. REACH and halogen-free status not explicitly stated in verified data; consult Intel product declaration for confirmation.
