EPM7512BQC208-7 - MAX 7000B CPLD 512 Macro Cells | Altera
MPN: EPM7512BQC208-7 ✗ Cuối đờiEPM7512BQC208-7 Tóm tắt
A CPLD (Complex Programmable Logic Device) is a programmable logic IC that combines multiple logic blocks, macrocells, and a programmable interconnect array on a single die, allowing designers to implement custom digital logic without fabricating an ASIC. Within the logic IC hierarchy, a CPLD sits between simple PLDs (PAL/GAL) and FPGAs: CPLDs offer deterministic timing, non-volatile EEPROM configuration, and instant-on operation, while FPGAs provide higher logic density at the cost of external configuration memory. The MAX 7000B family is built on Altera's second-generation Multiple Array MatriX (MAX) architecture using high-performance 2.5 V CMOS EEPROM technology.
Key differentiators of the EPM7512BQC208-7 include its 512 macrocells (the highest density in the MAX 7000B family), 176 user I/O pins, 7 ns propagation delay, and EEPROM-based in-system programmability (ISP) that retains configuration without a battery or boot PROM. The 2.5 V core supply reduces dynamic power versus 5 V MAX 7000S devices while remaining tolerant of legacy 3.3 V system interfaces.
The device uses a Multiple Array MatriX architecture with logic array blocks (LABs) feeding a programmable interconnect array, giving predictable, fixed pin-to-pin delays independent of routing. Each macrocell provides programmable flip-flops, product-term logic, and I/O registers, enabling state machines, bus interfaces, and glue logic to be integrated into one device.
Typical applications include legacy industrial control boards, PCI/ISA bus bridging, address decoding and chip-select generation, instrumentation glue logic, and replacement of discrete 74-series logic. The 208-pin PQFP footprint is shared across the MAX 7000B family, allowing density migration without PCB redesign.
When designing with this CPLD, note that the -7 speed grade is the fastest commercial grade in the family; the -10 and -15 grades trade speed for lower cost. Because the device is EEPROM-based, it is configured at power-up with no external configuration device, simplifying board bring-up compared with SRAM-based FPGAs.
This page synthesizes distributor availability, drop-in speed-grade alternatives, and practical design notes for the EPM7512BQC208-7 that are not consolidated in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho EPM7512BQC208-7 — 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 EPM7512BQC208-7 (cùng hình factor và footprint) — khác nhau ở Operating Temperature, Programmable Type, Device Type, Package Code, Propagation Delay (tPD).
EPM7512BQC208-10
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM7512BQC208-5
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM7512BQC208-7 Tỷ lệ tối đa & tính chất điện
| Family | MAX 7000B |
| Device Type | Complex Programmable Logic Device (CPLD) |
| Macrocells | 512 |
| Usable Gates | 10,000 |
| User I/O Pins | 176 |
| Maximum Internal Frequency | 90.1 MHz |
| Propagation Delay (tPD) | 7 ns |
| Supply Voltage (Core) | 2.375 V to 2.625 V (2.5 V nominal) |
| Programmable Type | In-System Programmable (ISP), EEPROM-based |
| Hộp | 208-pin PQFP (28x28 mm) |
| Package Code | FQFP |
| Terminal Form | Gull Wing |
| Nhiệt độ hoạt động | 0C to 90C (commercial) |
| Kiểu lắp đặt | Surface Mount |
| Logic Family | CMOS |
| ECCN | 3A991 |
| Configuration Retention | Non-volatile (no external configuration device required) |
Cấu hình chân EPM7512BQC208-7
| Chân 1 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 2 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 3 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 4 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 5 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 6 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 7 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 8 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 9 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 10 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 11 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 12 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 13 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 14 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 15 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 16 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 17 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 18 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 19 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 20 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 21 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 22 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 23 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 24 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 25 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 26 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 27 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 28 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 29 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 30 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 31 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 32 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 33 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 34 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 35 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 36 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 37 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 38 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 39 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 40 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 41 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 42 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 43 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 44 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 45 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 46 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 47 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 48 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 49 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 50 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 51 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 52 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 53 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 54 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 55 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 56 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 57 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 58 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 59 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 60 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 61 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 62 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 63 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 64 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 65 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 66 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 67 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 68 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 69 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 70 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 71 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 72 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 73 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 74 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 75 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 76 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 77 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 78 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 79 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 80 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 81 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 82 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 83 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 84 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 85 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 86 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 87 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 88 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 89 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 90 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 91 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 92 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 93 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 94 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 95 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 96 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 97 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 98 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 99 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 100 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 101 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 102 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 103 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 104 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 105 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 106 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 107 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 108 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 109 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 110 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 111 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 112 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 113 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 114 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 115 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 116 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 117 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 118 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 119 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 120 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 121 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 122 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 123 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 124 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 125 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 126 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 127 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 128 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 129 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 130 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 131 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 132 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 133 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 134 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 135 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 136 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 137 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 138 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 139 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 140 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 141 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 142 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 143 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 144 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 145 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 146 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 147 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 148 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 149 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 150 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 151 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 152 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 153 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 154 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 155 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 156 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 157 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 158 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 159 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 160 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 161 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 162 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 163 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 164 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 165 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 166 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 167 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 168 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 169 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 170 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 171 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 172 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 173 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 174 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 175 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 176 | I/O — User I/O pin (per MAX 7000B 208-pin PQFP pinout) |
| Chân 177 | VCCINT — 2.5 V core power supply |
| Chân 178 | GND — Ground |
| Chân 179 | VCCIO — I/O power supply |
| Chân 180 | GND — Ground |
| Chân 181 | VCCINT — 2.5 V core power supply |
| Chân 182 | GND — Ground |
| Chân 183 | VCCIO — I/O power supply |
| Chân 184 | GND — Ground |
| Chân 185 | VCCINT — 2.5 V core power supply |
| Chân 186 | GND — Ground |
| Chân 187 | VCCIO — I/O power supply |
| Chân 188 | GND — Ground |
| Chân 189 | VCCINT — 2.5 V core power supply |
| Chân 190 | GND — Ground |
| Chân 191 | VCCIO — I/O power supply |
| Chân 192 | GND — Ground |
| Chân 193 | VCCINT — 2.5 V core power supply |
| Chân 194 | GND — Ground |
| Chân 195 | VCCIO — I/O power supply |
| Chân 196 | GND — Ground |
| Chân 197 | VCCINT — 2.5 V core power supply |
| Chân 198 | GND — Ground |
| Chân 199 | VCCIO — I/O power supply |
| Chân 200 | GND — Ground |
| Chân 201 | VCCINT — 2.5 V core power supply |
| Chân 202 | GND — Ground |
| Chân 203 | VCCIO — I/O power supply |
| Chân 204 | GND — Ground |
| Chân 205 | TDI — JTAG test data input |
| Chân 206 | TDO — JTAG test data output |
| Chân 207 | TMS — JTAG test mode select |
| Chân 208 | TCK — JTAG test clock |
Ứng dụng tiêu biểu
EPM7512BQC208-7 phù hợp cho 6 Áp dụngs: Legacy Industrial Control Boards, PCI/ISA Bus Bridging and Interface Logic, Instrumentation Glue Logic and Address Decoding, Replacement of Discrete 74-Series Logic, Test and Measurement Equipment Control, Legacy Board Repair and Obsolescence Management.
Legacy Industrial Control Boards
The EPM7512BQC208-7 fits legacy industrial control boards because its 512 macrocells and 176 user I/O pins can absorb the discrete 74-series glue logic, address decoders, and state machines that populate older controller cards. Its 2.5 V core and EEPROM-based configuration mean the board powers up instantly with no external configuration PROM, which matters in factory equipment that must resume operation immediately after a power interruption. The 7 ns pin-to-pin delay and 90.1 MHz internal frequency provide deterministic timing for handshake and interlock logic. Because the 208-pin PQFP footprint is shared across the MAX 7000B family, a board can be re-spun with a different density without changing the land pattern. The main trade-off is that the 2.5 V core requires a dedicated regulator rail alongside legacy 5 V and 3.3 V supplies.
Được đề xuất
PCI/ISA Bus Bridging and Interface Logic
The EPM7512BQC208-7 is well suited to PCI and ISA bus bridging because its 176 user I/O pins can directly interface a 32-bit local bus to peripheral devices while implementing wait-state generation, byte swapping, and chip-select decoding in programmable logic. The 7 ns propagation delay supports the tight setup and hold windows of legacy parallel buses, and the 512 macrocells provide enough product terms for complex address decode without external PALs. EEPROM configuration means the bridge logic is live immediately at power-up, avoiding the configuration latency of SRAM-based FPGAs. Designers should note that the 2.5 V core requires level shifting when interfacing 5 V PCI signaling, and that the -10 speed grade may be marginal for the fastest bus cycles, making the -7 grade the safer choice for full-speed operation.
Được đề xuất
Instrumentation Glue Logic and Address Decoding
In instrumentation designs the EPM7512BQC208-7 consolidates address decoding, chip-select generation, and read/write strobe logic that would otherwise require dozens of 74-series packages. Its 512 macrocells allow multiple peripheral decoders to be implemented in one device, reducing board area and improving reliability by eliminating inter-package routing. The 7 ns pin-to-pin delay keeps decode paths short enough for fast microprocessor buses, and the 90.1 MHz internal frequency supports simple state machines for ADC/DAC sequencing. Because the device is EEPROM-based, calibration and configuration data are retained without a battery. The trade-off is static power: the 2.5 V CMOS core draws quiescent current even when idle, so battery-powered instruments should evaluate the power budget carefully.
Được đề xuất
Replacement of Discrete 74-Series Logic
The EPM7512BQC208-7 replaces large banks of discrete 74-series logic by integrating counters, shift registers, multiplexers, and glue gates into a single 208-pin PQFP device. With 512 macrocells and 176 user I/O pins, a single CPLD can absorb the equivalent of dozens of SSI/MSI packages, shrinking board area and reducing assembly cost. The 7 ns propagation delay is comparable to fast 74-series logic, so timing behavior is preserved, and the EEPROM configuration means no boot device is needed. Engineers migrating from discrete logic should account for the 2.5 V core supply and the need to re-verify timing closure, since CPLD routing introduces fixed but nonzero delays that differ from discrete gate propagation.
Được đề xuất
Test and Measurement Equipment Control
The EPM7512BQC208-7 is used in test and measurement equipment to implement trigger logic, timing generators, and instrument control state machines. Its 90.1 MHz internal frequency and 7 ns pin-to-pin delay allow precise event sequencing, while 176 user I/O pins can drive front-panel controls, relays, and measurement front ends directly. The non-volatile EEPROM configuration ensures the instrument is operational immediately at power-on, which is important for automated test cells that cannot wait for FPGA configuration. Because the MAX 7000B family is an older line, designers should plan for long-term supply by stocking the -7 grade or qualifying the pin-compatible -10 grade as a fallback for non-critical timing paths.
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Legacy Board Repair and Obsolescence Management
The EPM7512BQC208-7 is frequently sourced for repair and obsolescence management of legacy boards where the 208-pin PQFP footprint is fixed and redesign is not economical. Because the MAX 7000B family is no longer in active production, the -7 grade is obtained through independent and aftermarket channels, and buyers should verify date codes and authenticity. The pin-compatible EPM7512BQC208-10 and EPM7512BQC208-5 grades provide fallback options when the -7 is unavailable, since all three share the same die and package. For long-term support, engineers should archive the original JEDEC programming file and confirm that any substitute grade still meets the board's timing margins before committing to volume purchases.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho EPM7512BQC208-7 — 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 | EPM7512BQC208-10 | EPM7512BQC208-5 | EPM7512BFC256-7 |
|---|---|---|---|---|
| Package | 208-pin PQFP (28x28 mm) | 208-pin PQFP (28x28 mm) - same | 208-pin PQFP (28x28 mm) - same | 256-pin FBGA - different |
| Brand | Altera | Altera | Altera | Altera |
| Propagation Delay (tPD) | 7 ns | 10 ns | 5 ns | 7 ns |
| Macrocells | 512 | 512 | 512 | 512 |
| Core Supply Voltage | 2.375 V to 2.625 V | 2.375 V to 2.625 V | 2.375 V to 2.625 V | 2.375 V to 2.625 V |
| Operating Temperature | 0C to 90C (commercial) | 0C to 90C (commercial) | 0C to 90C (commercial) | 0C to 90C (commercial) |
| Configuration Type | EEPROM-based, in-system programmable | EEPROM-based, in-system programmable | EEPROM-based, in-system programmable | EEPROM-based, in-system programmable |
Bảo phân biệt quan trọng
- Fastest commercial speed grade in the MAX 7000B 208-pin PQFP family (vsEPM7512BQC208-10)
- Highest macrocell density in the MAX 7000B family (vsEPM7256BQC208-7)
- Non-volatile EEPROM configuration with instant-on operation (vsEPM7512BFC256-7)
Ghi chú thiết kế
The EPM7512BQC208-7 requires a 2.5 V core supply within 2.375 V to 2.625 V. Decouple each VCCINT pin with a 0.1 uF ceramic capacitor placed as close to the pin as possible, plus at least one 10 uF bulk capacitor per supply rail. Because the MAX 7000B core is CMOS, dynamic current scales with switching frequency and the number of toggling macrocells; estimate the worst-case ICC from the datasheet ICC vs frequency curve and size the regulator with at least 30% margin. Do not share the 2.5 V rail with noisy switching regulators without additional LC filtering.
The 208-pin PQFP has a 0.5 mm lead pitch, so use a solder mask-defined land pattern and reflow profile per the manufacturer datasheet. Route all VCCINT and VCCIO pins to solid power planes rather than daisy-chaining, and place a 0.1 uF decoupling capacitor within 2 mm of every power pin. Keep the JTAG signals (TCK, TMS, TDI, TDO) short and referenced to a continuous ground plane; TCK in particular should be treated as a clock net with controlled impedance to avoid programming failures. Provide a ground via adjacent to each decoupling capacitor.
A common mistake when substituting speed grades is assuming the -10 part will always work in a -7 socket. The EPM7512BQC208-10 is pin-compatible but 43% slower in pin-to-pin delay (10 ns vs 7 ns), so any design operating near the 90.1 MHz limit or with tight external bus timing may fail. Always re-run static timing analysis with the slower grade's derated tPD and tSU/tCO values before committing to a substitution. Also verify that the programming file targets the correct device density, since the MAX 7000B family shares a footprint but not a JEDEC file across densities.
Thông tin tuân thủ
Compliance data for the EPM7512BQC208-7 was not present in the verified web data. The part carries ECCN 3A991 per distributor data. Confirm RoHS/REACH status with the manufacturer or distributor before design release.
