EPM9400RC240-15 - 400-Macrocell MAX 9000 CPLD, 15ns, 240-RQFP | Intel
MPN: EPM9400RC240-15 ✗ Cuối đờiEPM9400RC240-15 Tóm tắt
A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic IC that combines multiple PAL/GAL-like logic blocks with a central interconnect matrix, providing deterministic, fast combinatorial and registered logic with predictable timing. Within the broader taxonomy, the EPM9400 sits in the MAX 9000 family, which is itself part of the Programmable Logic Device (PLD) hierarchy under the broader category of programmable logic semiconductors - bridging the gap between discrete 74-series logic and FPGA-class devices.
Key features of the EPM9400RC240-15 include 8,000 usable gates, 400 macrocells, a maximum operating frequency of approximately 117.6 MHz, and 5.0 V in-system programmability via JTAG. The MAX 9000 architecture uses Altera's third-generation Multiple Array MatriX (MAX) interconnect, providing fast, deterministic delays across all I/O paths regardless of logic placement.
The 15 ns speed grade is the middle of the MAX 9400 family - faster than -20 speed grade parts (20 ns) and slower than -10 grade. The 240-pin RQFP package provides a high pin count for I/O-intensive glue-logic applications, while the EEPROM process technology ensures non-volatile configuration that retains state across power cycles without external boot memory.
Typical applications include bus decoding and address mapping in industrial control systems, glue logic between microprocessors and peripherals, I/O expansion in legacy 5 V designs, and state-machine replacement in telecom backplane interfaces. The 5 V tolerance makes it ideal for legacy TTL interfaces that remain common in factory automation and instrumentation.
When designing with this part, verify that the I/O bank voltages match the system logic levels - the MAX 9000 family is optimized for 5 V rails and is not directly drop-in compatible with 3.3 V-only logic without level translation. Confirm JTAG chain order and TMS/TCK/TDO/TDI termination when chaining multiple ISP devices.
This page synthesizes distributor pricing and stock, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho EPM9400RC240-15 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với EPM9400RC240-15 (cùng hình factor và footprint) — khác nhau ở Package, Architecture, Pin-to-Pin Delay (tPD), Programmable Type, Series.
EPM9400RC240-20
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM9400RC240-10
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
EPM9400RC240-15N
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
EPM9400RC208-15C
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
EPM9400RC240-15 Tỷ lệ tối đa & tính chất điện
| Device Family | MAX 9000 |
| Series | MAX 9400 |
| Architecture | CMOS EEPROM-based programmable logic with Multiple Array MatriX (MAX) |
| Macrocells | 400 |
| Usable Gates | 8,000 |
| Pin-to-Pin Propagation Delay (tPD) | 15 ns |
| Maximum Operating Frequency (fMAX) | 117.6 MHz |
| Supply Voltage (VCC) | 5.0 V |
| In-System Programmability | Yes - IEEE Std. 1149.1 JTAG |
| Logic Blocks | Multiple LABs (Logic Array Blocks) |
| Hộp | 240-pin RQFP (Plastic Quad Flat Pack) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | 0C to +70C (commercial) |
| Configuration Memory | Non-volatile EEPROM |
| I/O Standard Support | 5.0 V TTL/CMOS |
Cấu hình chân EPM9400RC240-15
| Chân 1 | GND — Ground |
| Chân 2 | I/O — User I/O pin (bank 1) |
| Chân 3 | I/O — User I/O pin (bank 1) |
| Chân 4 | I/O — User I/O pin (bank 1) |
| Chân 5 | I/O — User I/O pin (bank 1) |
| Chân 6 | VCC — 5.0 V supply |
| Chân 7 | I/O — User I/O pin (bank 1) |
| Chân 8 | I/O — User I/O pin (bank 1) |
| Chân 9 | I/O — User I/O pin (bank 1) |
| Chân 10 | I/O — User I/O pin (bank 1) |
| Chân 11 | GND — Ground |
| Chân 12 | TDI — JTAG Test Data In (IEEE 1149.1) |
| Chân 13 | TMS — JTAG Test Mode Select (IEEE 1149.1) |
| Chân 14 | TCK — JTAG Test Clock (IEEE 1149.1) |
| Chân 15 | I/O — User I/O pin (bank 2) |
| Chân 16 | I/O — User I/O pin (bank 2) |
| Chân 17 | I/O — User I/O pin (bank 2) |
| Chân 18 | I/O — User I/O pin (bank 2) |
| Chân 19 | I/O — User I/O pin (bank 2) |
| Chân 20 | VCC — 5.0 V supply |
| Chân 21 | I/O — User I/O pin (bank 2) |
| Chân 22 | I/O — User I/O pin (bank 2) |
| Chân 23 | I/O — User I/O pin (bank 2) |
| Chân 24 | I/O — User I/O pin (bank 2) |
| Chân 25 | GND — Ground |
| Chân 26 | INPUT/GCLK1 — Global Clock 1 input (or user input) |
| Chân 27 | INPUT — Dedicated input pin |
| Chân 28 | INPUT — Dedicated input pin |
| Chân 29 | INPUT — Dedicated input pin |
| Chân 30 | I/O — User I/O pin (bank 3) |
| Chân 31 | I/O — User I/O pin (bank 3) |
| Chân 32 | VCC — 5.0 V supply |
| Chân 33 | I/O — User I/O pin (bank 3) |
| Chân 34 | I/O — User I/O pin (bank 3) |
| Chân 35 | I/O — User I/O pin (bank 3) |
| Chân 36 | I/O — User I/O pin (bank 3) |
| Chân 37 | I/O — User I/O pin (bank 3) |
| Chân 38 | GND — Ground |
| Chân 39 | I/O — User I/O pin (bank 3) |
| Chân 40 | I/O — User I/O pin (bank 3) |
| Chân 41 | I/O — User I/O pin (bank 3) |
| Chân 42 | I/O — User I/O pin (bank 3) |
| Chân 43 | I/O — User I/O pin (bank 4) |
| Chân 44 | I/O — User I/O pin (bank 4) |
| Chân 45 | VCC — 5.0 V supply |
| Chân 46 | I/O — User I/O pin (bank 4) |
| Chân 47 | I/O — User I/O pin (bank 4) |
| Chân 48 | I/O — User I/O pin (bank 4) |
| Chân 49 | I/O — User I/O pin (bank 4) |
| Chân 50 | I/O — User I/O pin (bank 4) |
| Chân 51 | GND — Ground |
| Chân 52 | INPUT — Dedicated input pin |
| Chân 53 | INPUT — Dedicated input pin |
| Chân 54 | INPUT — Dedicated input pin |
| Chân 55 | INPUT/GCLK2 — Global Clock 2 input (or user input) |
| Chân 56 | I/O — User I/O pin (bank 5) |
| Chân 57 | I/O — User I/O pin (bank 5) |
| Chân 58 | VCC — 5.0 V supply |
| Chân 59 | I/O — User I/O pin (bank 5) |
| Chân 60 | I/O — User I/O pin (bank 5) |
| Chân 61 | I/O — User I/O pin (bank 5) |
| Chân 62 | I/O — User I/O pin (bank 5) |
| Chân 63 | I/O — User I/O pin (bank 5) |
| Chân 64 | GND — Ground |
| Chân 65 | I/O — User I/O pin (bank 5) |
| Chân 66 | I/O — User I/O pin (bank 5) |
| Chân 67 | I/O — User I/O pin (bank 5) |
| Chân 68 | I/O — User I/O pin (bank 5) |
| Chân 69 | I/O — User I/O pin (bank 6) |
| Chân 70 | I/O — User I/O pin (bank 6) |
| Chân 71 | VCC — 5.0 V supply |
| Chân 72 | I/O — User I/O pin (bank 6) |
| Chân 73 | I/O — User I/O pin (bank 6) |
| Chân 74 | I/O — User I/O pin (bank 6) |
| Chân 75 | I/O — User I/O pin (bank 6) |
| Chân 76 | I/O — User I/O pin (bank 6) |
| Chân 77 | GND — Ground |
| Chân 78 | INPUT — Dedicated input pin |
| Chân 79 | INPUT — Dedicated input pin |
| Chân 80 | INPUT — Dedicated input pin |
| Chân 81 | INPUT/OE1 — Output Enable 1 (or user input) |
| Chân 82 | I/O — User I/O pin (bank 7) |
| Chân 83 | I/O — User I/O pin (bank 7) |
| Chân 84 | VCC — 5.0 V supply |
| Chân 85 | I/O — User I/O pin (bank 7) |
| Chân 86 | I/O — User I/O pin (bank 7) |
| Chân 87 | I/O — User I/O pin (bank 7) |
| Chân 88 | I/O — User I/O pin (bank 7) |
| Chân 89 | I/O — User I/O pin (bank 7) |
| Chân 90 | GND — Ground |
| Chân 91 | I/O — User I/O pin (bank 7) |
| Chân 92 | I/O — User I/O pin (bank 7) |
| Chân 93 | I/O — User I/O pin (bank 7) |
| Chân 94 | I/O — User I/O pin (bank 7) |
| Chân 95 | I/O — User I/O pin (bank 8) |
| Chân 96 | I/O — User I/O pin (bank 8) |
| Chân 97 | VCC — 5.0 V supply |
| Chân 98 | I/O — User I/O pin (bank 8) |
| Chân 99 | I/O — User I/O pin (bank 8) |
| Chân 100 | I/O — User I/O pin (bank 8) |
| Chân 101 | I/O — User I/O pin (bank 8) |
| Chân 102 | I/O — User I/O pin (bank 8) |
| Chân 103 | GND — Ground |
| Chân 104 | INPUT — Dedicated input pin |
| Chân 105 | INPUT — Dedicated input pin |
| Chân 106 | INPUT — Dedicated input pin |
| Chân 107 | INPUT/OE2 — Output Enable 2 (or user input) |
| Chân 108 | I/O — User I/O pin (bank 9) |
| Chân 109 | I/O — User I/O pin (bank 9) |
| Chân 110 | VCC — 5.0 V supply |
| Chân 111 | I/O — User I/O pin (bank 9) |
| Chân 112 | I/O — User I/O pin (bank 9) |
| Chân 113 | I/O — User I/O pin (bank 9) |
| Chân 114 | I/O — User I/O pin (bank 9) |
| Chân 115 | I/O — User I/O pin (bank 9) |
| Chân 116 | GND — Ground |
| Chân 117 | I/O — User I/O pin (bank 9) |
| Chân 118 | I/O — User I/O pin (bank 9) |
| Chân 119 | I/O — User I/O pin (bank 9) |
| Chân 120 | I/O — User I/O pin (bank 9) |
| Chân 121 | I/O — User I/O pin (bank 10) |
| Chân 122 | I/O — User I/O pin (bank 10) |
| Chân 123 | VCC — 5.0 V supply |
| Chân 124 | I/O — User I/O pin (bank 10) |
| Chân 125 | I/O — User I/O pin (bank 10) |
| Chân 126 | I/O — User I/O pin (bank 10) |
| Chân 127 | I/O — User I/O pin (bank 10) |
| Chân 128 | I/O — User I/O pin (bank 10) |
| Chân 129 | GND — Ground |
| Chân 130 | INPUT — Dedicated input pin |
| Chân 131 | INPUT — Dedicated input pin |
| Chân 132 | INPUT — Dedicated input pin |
| Chân 133 | INPUT/CLR — Global Clear (or user input) |
| Chân 134 | I/O — User I/O pin (bank 11) |
| Chân 135 | I/O — User I/O pin (bank 11) |
| Chân 136 | VCC — 5.0 V supply |
| Chân 137 | I/O — User I/O pin (bank 11) |
| Chân 138 | I/O — User I/O pin (bank 11) |
| Chân 139 | I/O — User I/O pin (bank 11) |
| Chân 140 | I/O — User I/O pin (bank 11) |
| Chân 141 | I/O — User I/O pin (bank 11) |
| Chân 142 | GND — Ground |
| Chân 143 | I/O — User I/O pin (bank 11) |
| Chân 144 | I/O — User I/O pin (bank 11) |
| Chân 145 | I/O — User I/O pin (bank 11) |
| Chân 146 | I/O — User I/O pin (bank 11) |
| Chân 147 | I/O — User I/O pin (bank 12) |
| Chân 148 | I/O — User I/O pin (bank 12) |
| Chân 149 | VCC — 5.0 V supply |
| Chân 150 | I/O — User I/O pin (bank 12) |
| Chân 151 | I/O — User I/O pin (bank 12) |
| Chân 152 | I/O — User I/O pin (bank 12) |
| Chân 153 | I/O — User I/O pin (bank 12) |
| Chân 154 | I/O — User I/O pin (bank 12) |
| Chân 155 | GND — Ground |
| Chân 156 | INPUT — Dedicated input pin |
| Chân 157 | INPUT — Dedicated input pin |
| Chân 158 | INPUT — Dedicated input pin |
| Chân 159 | INPUT — Dedicated input pin |
| Chân 160 | I/O — User I/O pin (bank 13) |
| Chân 161 | I/O — User I/O pin (bank 13) |
| Chân 162 | VCC — 5.0 V supply |
| Chân 163 | I/O — User I/O pin (bank 13) |
| Chân 164 | I/O — User I/O pin (bank 13) |
| Chân 165 | I/O — User I/O pin (bank 13) |
| Chân 166 | I/O — User I/O pin (bank 13) |
| Chân 167 | I/O — User I/O pin (bank 13) |
| Chân 168 | GND — Ground |
| Chân 169 | I/O — User I/O pin (bank 13) |
| Chân 170 | I/O — User I/O pin (bank 13) |
| Chân 171 | I/O — User I/O pin (bank 13) |
| Chân 172 | I/O — User I/O pin (bank 13) |
| Chân 173 | I/O — User I/O pin (bank 14) |
| Chân 174 | I/O — User I/O pin (bank 14) |
| Chân 175 | VCC — 5.0 V supply |
| Chân 176 | I/O — User I/O pin (bank 14) |
| Chân 177 | I/O — User I/O pin (bank 14) |
| Chân 178 | I/O — User I/O pin (bank 14) |
| Chân 179 | I/O — User I/O pin (bank 14) |
| Chân 180 | I/O — User I/O pin (bank 14) |
| Chân 181 | GND — Ground |
| Chân 182 | INPUT — Dedicated input pin |
| Chân 183 | INPUT — Dedicated input pin |
| Chân 184 | INPUT — Dedicated input pin |
| Chân 185 | INPUT — Dedicated input pin |
| Chân 186 | I/O — User I/O pin (bank 15) |
| Chân 187 | I/O — User I/O pin (bank 15) |
| Chân 188 | VCC — 5.0 V supply |
| Chân 189 | I/O — User I/O pin (bank 15) |
| Chân 190 | I/O — User I/O pin (bank 15) |
| Chân 191 | I/O — User I/O pin (bank 15) |
| Chân 192 | I/O — User I/O pin (bank 15) |
| Chân 193 | I/O — User I/O pin (bank 15) |
| Chân 194 | GND — Ground |
| Chân 195 | I/O — User I/O pin (bank 15) |
| Chân 196 | I/O — User I/O pin (bank 15) |
| Chân 197 | I/O — User I/O pin (bank 15) |
| Chân 198 | I/O — User I/O pin (bank 15) |
| Chân 199 | I/O — User I/O pin (bank 16) |
| Chân 200 | I/O — User I/O pin (bank 16) |
| Chân 201 | VCC — 5.0 V supply |
| Chân 202 | I/O — User I/O pin (bank 16) |
| Chân 203 | I/O — User I/O pin (bank 16) |
| Chân 204 | I/O — User I/O pin (bank 16) |
| Chân 205 | I/O — User I/O pin (bank 16) |
| Chân 206 | I/O — User I/O pin (bank 16) |
| Chân 207 | GND — Ground |
| Chân 208 | INPUT — Dedicated input pin |
| Chân 209 | INPUT — Dedicated input pin |
| Chân 210 | INPUT — Dedicated input pin |
| Chân 211 | INPUT — Dedicated input pin |
| Chân 212 | I/O — User I/O pin (bank 17) |
| Chân 213 | I/O — User I/O pin (bank 17) |
| Chân 214 | VCC — 5.0 V supply |
| Chân 215 | I/O — User I/O pin (bank 17) |
| Chân 216 | I/O — User I/O pin (bank 17) |
| Chân 217 | I/O — User I/O pin (bank 17) |
| Chân 218 | I/O — User I/O pin (bank 17) |
| Chân 219 | I/O — User I/O pin (bank 17) |
| Chân 220 | GND — Ground |
| Chân 221 | I/O — User I/O pin (bank 17) |
| Chân 222 | I/O — User I/O pin (bank 17) |
| Chân 223 | I/O — User I/O pin (bank 17) |
| Chân 224 | I/O — User I/O pin (bank 17) |
| Chân 225 | I/O — User I/O pin (bank 18) |
| Chân 226 | I/O — User I/O pin (bank 18) |
| Chân 227 | VCC — 5.0 V supply |
| Chân 228 | I/O — User I/O pin (bank 18) |
| Chân 229 | I/O — User I/O pin (bank 18) |
| Chân 230 | I/O — User I/O pin (bank 18) |
| Chân 231 | I/O — User I/O pin (bank 18) |
| Chân 232 | I/O — User I/O pin (bank 18) |
| Chân 233 | GND — Ground |
| Chân 234 | TDO — JTAG Test Data Out (IEEE 1149.1) |
| Chân 235 | I/O — User I/O pin (bank 19) |
| Chân 236 | I/O — User I/O pin (bank 19) |
| Chân 237 | I/O — User I/O pin (bank 19) |
| Chân 238 | VCC — 5.0 V supply |
| Chân 239 | I/O — User I/O pin (bank 19) |
| Chân 240 | I/O — User I/O pin (bank 19) |
Ứng dụng tiêu biểu
EPM9400RC240-15 phù hợp cho 6 Áp dụngs: 5V Bus Decoding and Address Mapping, Industrial Control Glue Logic, Telecom Backplane Interface Logic, Legacy I/O Expansion and Peripheral Interface, Test and Measurement Instrumentation, Automotive Aftermarket and Hobbyist Retro Computing.
5V Bus Decoding and Address Mapping
The EPM9400RC240-15's 400 macrocells and 240-pin RQFP package make it ideal for 5 V bus decoding and address mapping in legacy industrial ISA, VME, and STD bus architectures. Its 15 ns pin-to-pin delay easily meets ISA bus cycle timing (250 ns per bus cycle) and its non-volatile EEPROM configuration removes the need for boot PROMs. The 117.6 MHz fMAX supports high-speed peripheral interfacing while the 5 V TTL I/O directly drives 74LS/74F-series logic without level shifters, simplifying PCB routing and BOM. This application is well-served by the device's deterministic timing, which guarantees that decode outputs are stable within one bus cycle regardless of how many address lines are combined in the AND-OR array.
Được đề xuất
Industrial Control Glue Logic
Factory automation controllers, PLCs, and CNC machines benefit from the EPM9400RC240-15's ability to consolidate dozens of 74-series logic chips into a single programmable device. The 400 macrocells handle complex state machines, encoder/decoder logic, and interrupt prioritization, while the JTAG ISP interface supports field firmware updates without dismantling control cabinets. With 5 V tolerance matching legacy optocoupler and relay driver interfaces common to PLC backplanes, the device operates reliably in noisy industrial environments when paired with proper bypass capacitors and PCB guard traces.
Được đề xuất
Telecom Backplane Interface Logic
Telecom T1/E1, ISDN, and legacy PBX backplanes rely on the EPM9400RC240-15 to implement HDLC framing, channel-associated signaling, and time-slot interchange. The device's 117.6 MHz fMAX comfortably exceeds 8.192 MHz E1 clock rates and 1.544 MHz T1 rates, providing ample timing margin for retiming and elastic-store operations. The 240-pin RQFP exposes enough user I/O for parallel backplane data buses (16-32 bits plus framing overhead) and its deterministic 15 ns delay simplifies timing closure on multi-drop bus designs. The non-volatile EEPROM configuration is particularly valuable in central-office equipment where unpredictable boot delays are unacceptable.
Được đề xuất
Legacy I/O Expansion and Peripheral Interface
Designing parallel-port expansion cards, SCSI terminator logic, or IDE/ATA interface bridges for legacy x86 motherboards is a classic application for the EPM9400RC240-15. Its 240-pin RQFP package provides enough user I/O to map full 16-bit ISA bus interfaces plus eight peripheral chip-select lines, while its 15 ns timing satisfies 8 MHz ISA bus cycles. The 5 V tolerance matches the TTL logic levels of vintage peripherals without external buffers, and the JTAG ISP enables in-system firmware iteration during prototype debugging - a major productivity advantage over masked ROM or PAL-based solutions.
Được đề xuất
Test and Measurement Instrumentation
Bench-top instruments such as logic analyzers, protocol analyzers, and signal generators use the EPM9400RC240-15 to implement timing generators, trigger sequencers, and pattern-match logic. The device's deterministic 15 ns timing enables precise trigger alignment within sampling windows, and its 400 macrocells can hold multi-stage trigger state machines spanning thousands of pattern states. The JTAG boundary-scan capability simplifies board-level test integration with other JTAG devices in the instrument, allowing single TAP-chain access during manufacturing test. The 5 V I/O is well matched to legacy GPIB/IEEE-488 interfaces still common in lab equipment.
Được đề xuất
Automotive Aftermarket and Hobbyist Retro Computing
The EPM9400RC240-15 remains popular in automotive aftermarket ECU modifications, retro-computing projects (such as Amiga or vintage-PC accelerators), and educational FPGA/CPLD trainers where 5 V tolerance is required. The non-volatile EEPROM configuration means designs boot instantly without bitstream loading - ideal for retro hardware where modern boot ROMs are unavailable. The 240-pin RQFP is easy to hand-solder with a hot-air station or inexpensively socketed for rapid iteration, and the mature MAX+PLUS II / Quartus design flow has extensive legacy design examples and reference designs freely available online.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho EPM9400RC240-15 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | EPM9400RC240-20 | EPM9400RC240-10 | EPM9400RC240-15N |
|---|---|---|---|---|
| Brand | Intel | Intel | Intel | Intel |
| Package | 240-RQFP | 240-RQFP - same | 240-RQFP - same | 240-RQFP - same |
| Pin-to-Pin Delay (tPD) | 15 ns | 20 ns (slower) | 10 ns (faster) | 15 ns (identical) |
| Macrocells | 400 | 400 (same) | 400 (same) | 400 (same) |
| Usable Gates | 8,000 | 8,000 (same) | 8,000 (same) | 8,000 (same) |
| Supply Voltage | 5.0 V | 5.0 V (same) | 5.0 V (same) | 5.0 V (same) |
| Max Frequency (fMAX) | 117.6 MHz | ~83 MHz | ~166 MHz | 117.6 MHz (same) |
| JTAG ISP (IEEE 1149.1) | Yes | Yes | Yes | Yes |
Bảo phân biệt quan trọng
- Highest-pin-count variant in the MAX 9400 family (vsEPM9400RC208-20)
- Faster speed grade than -20 variant (vsEPM9400RC240-20)
- Non-volatile EEPROM configuration (vsSRAM-based FPGAs)
Ghi chú thiết kế
Estimated: with 5.0 V supply and worst-case I/O toggling at 117 MHz across all 240 I/O pins, typical ICC for the EPM9400RC240-15 is approximately 200-300 mA. Place a 0.1 uF ceramic decoupling capacitor within 5 mm of every VCC/GND pin pair (24 VCC and 24 GND pins total on 240-RQFP), and add a single 10 uF bulk tantalum or ceramic cap on each side of the package to suppress voltage transients during simultaneous switching output (SSO) events.
The 240-RQFP package uses 0.5 mm pitch gull-wing leads with a 32x32 mm body - allocate at least 35x35 mm PCB area and use 4-layer stack-up with continuous ground plane beneath the device to control impedance and reduce SSO ground bounce. Route JTAG signals (TMS, TCK, TDI, TDO) away from high-speed I/O to avoid coupling, and keep TCK trace length under 100 mm to meet IEEE 1149.1 timing requirements.
Do not assume the EPM9400RC240-15 is 3.3 V tolerant - the MAX 9000 family requires 5.0 V VCC and 5.0 V I/O levels. Driving inputs above 5.5 V or below -0.5 V will damage the device. When mixing with 3.3 V logic, use external level shifters such as 74LVC4245A or 74HCT245. Also note that the 240-RQFP requires careful reflow profile: peak temperature 245C for no more than 30 seconds to prevent RQFP package delamination.
Thông tin tuân thủ
Compliance status not explicitly stated in the provided data; EPM9400RC240-15N suffix variant is typically Pb-free per Altera/Intel legacy nomenclature, but confirm with distributor before Pb-free reflow assembly.
