EPM7512BQC208-5 - MAX 7000B CPLD 512 Macro 176 IO | Altera
MPN: EPM7512BQC208-5 ✗ Cuối đờiEPM7512BQC208-5 Tóm tắt
A CPLD (Complex Programmable Logic Device) is a programmable logic IC that combines multiple logic array blocks and macrocells with non-volatile configuration memory, allowing designers to implement glue logic, state machines, and bus interfaces without an external configuration device. In the logic IC hierarchy, a CPLD sits between simple PLDs (PAL/GAL) and FPGAs: CPLDs offer deterministic, single-cycle timing and instant-on operation, while FPGAs offer higher logic density. The MAX 7000B family is the 2.5 V evolution of the industry-standard MAX 7000 architecture.
Key features include 512 macrocells organized into 16 logic array blocks, 176 user I/O pins, a 163.9 MHz internal frequency (5 ns tPD), and EEPROM configuration that retains the design without power. The 2.5 V core reduces dynamic power versus 5 V MAX 7000S devices, and the device supports IEEE 1149.1 JTAG boundary-scan for in-system programming and board-level test.
The MAX 7000B architecture uses a programmable interconnect array (PIA) to route all logic signals, giving fully deterministic pin-to-pin delays independent of routing. Each macrocell provides a flip-flop with individual clock, clear, and preset, plus programmable output slew-rate and open-drain options. The 208-pin PQFP package provides 176 I/O with a 0.5 mm lead pitch.
Typical applications include PCI/ISA bus glue logic, DSP and microcontroller interface logic, memory controllers, and industrial control state machines. The 5 ns delay and 163.9 MHz operation suit address decoding and handshake logic where predictable timing matters more than raw gate count.
When designing with this device, note that the -5 speed grade is the fastest MAX 7000B grade and that the 2.5 V core requires level-compatible I/O planning for 3.3 V or 5 V peripherals. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho EPM7512BQC208-5 — 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 EPM7512BQC208-5 (cùng hình factor và footprint) — khác nhau ở Operating Temperature, Package, Programmable Type, Propagation Delay (tPD), Device Type.
EPM7512BQC208-10
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM7512BFC256-7
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM7512BFI256-7
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM7512AEQC208-7
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
EPM7512AEQC208-10
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
EPM7512BQC208-5 Tỷ lệ tối đa & tính chất điện
| Family | MAX 7000B |
| Device Type | EEPROM-based Complex Programmable Logic Device (CPLD) |
| Macrocells | 512 |
| Usable Gates | 10,000 |
| User I/O Pins | 176 |
| Logic Array Blocks | 16 |
| Propagation Delay (tPD) | 5 ns |
| Internal Frequency | 163.9 MHz |
| Supply Voltage (VCCINT) | 2.375 V to 2.625 V (2.5 V nominal) |
| Programmable Type | In System Programmable (ISP) |
| Configuration Memory | EEPROM (non-volatile) |
| Hộp | 208-pin PQFP (28x28 mm) |
| Package Code | FQFP / S-PQFP-G208 |
| Terminal Pitch | 0.5 mm |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | 0C to 70C (commercial) |
| JTAG Support | IEEE 1149.1 boundary-scan |
| Speed Grade | -5 (fastest MAX 7000B grade) |
Cấu hình chân EPM7512BQC208-5
| Chân 1 | I/O — General-purpose user I/O (Bank 1) |
| Chân 2 | I/O — General-purpose user I/O (Bank 1) |
| Chân 3 | I/O — General-purpose user I/O (Bank 1) |
| Chân 4 | I/O — General-purpose user I/O (Bank 1) |
| Chân 5 | I/O — General-purpose user I/O (Bank 1) |
| Chân 6 | I/O — General-purpose user I/O (Bank 1) |
| Chân 7 | I/O — General-purpose user I/O (Bank 1) |
| Chân 8 | I/O — General-purpose user I/O (Bank 1) |
| Chân 9 | I/O — General-purpose user I/O (Bank 1) |
| Chân 10 | I/O — General-purpose user I/O (Bank 1) |
| Chân 11 | I/O — General-purpose user I/O (Bank 1) |
| Chân 12 | I/O — General-purpose user I/O (Bank 1) |
| Chân 13 | I/O — General-purpose user I/O (Bank 1) |
| Chân 14 | I/O — General-purpose user I/O (Bank 1) |
| Chân 15 | I/O — General-purpose user I/O (Bank 1) |
| Chân 16 | I/O — General-purpose user I/O (Bank 1) |
| Chân 17 | I/O — General-purpose user I/O (Bank 1) |
| Chân 18 | I/O — General-purpose user I/O (Bank 1) |
| Chân 19 | I/O — General-purpose user I/O (Bank 1) |
| Chân 20 | I/O — General-purpose user I/O (Bank 1) |
| Chân 21 | I/O — General-purpose user I/O (Bank 1) |
| Chân 22 | I/O — General-purpose user I/O (Bank 1) |
| Chân 23 | I/O — General-purpose user I/O (Bank 1) |
| Chân 24 | I/O — General-purpose user I/O (Bank 1) |
| Chân 25 | I/O — General-purpose user I/O (Bank 1) |
| Chân 26 | I/O — General-purpose user I/O (Bank 1) |
| Chân 27 | I/O — General-purpose user I/O (Bank 1) |
| Chân 28 | I/O — General-purpose user I/O (Bank 1) |
| Chân 29 | I/O — General-purpose user I/O (Bank 1) |
| Chân 30 | I/O — General-purpose user I/O (Bank 1) |
| Chân 31 | I/O — General-purpose user I/O (Bank 1) |
| Chân 32 | I/O — General-purpose user I/O (Bank 1) |
| Chân 33 | I/O — General-purpose user I/O (Bank 1) |
| Chân 34 | I/O — General-purpose user I/O (Bank 1) |
| Chân 35 | I/O — General-purpose user I/O (Bank 1) |
| Chân 36 | I/O — General-purpose user I/O (Bank 1) |
| Chân 37 | I/O — General-purpose user I/O (Bank 1) |
| Chân 38 | I/O — General-purpose user I/O (Bank 1) |
| Chân 39 | I/O — General-purpose user I/O (Bank 1) |
| Chân 40 | I/O — General-purpose user I/O (Bank 1) |
| Chân 41 | I/O — General-purpose user I/O (Bank 1) |
| Chân 42 | I/O — General-purpose user I/O (Bank 1) |
| Chân 43 | I/O — General-purpose user I/O (Bank 1) |
| Chân 44 | I/O — General-purpose user I/O (Bank 1) |
| Chân 45 | I/O — General-purpose user I/O (Bank 1) |
| Chân 46 | I/O — General-purpose user I/O (Bank 1) |
| Chân 47 | I/O — General-purpose user I/O (Bank 1) |
| Chân 48 | I/O — General-purpose user I/O (Bank 1) |
| Chân 49 | I/O — General-purpose user I/O (Bank 1) |
| Chân 50 | I/O — General-purpose user I/O (Bank 1) |
| Chân 51 | I/O — General-purpose user I/O (Bank 1) |
| Chân 52 | I/O — General-purpose user I/O (Bank 1) |
| Chân 53 | VCCINT — 2.5 V core power supply |
| Chân 54 | GND — Ground |
| Chân 55 | I/O — General-purpose user I/O (Bank 2) |
| Chân 56 | I/O — General-purpose user I/O (Bank 2) |
| Chân 57 | I/O — General-purpose user I/O (Bank 2) |
| Chân 58 | I/O — General-purpose user I/O (Bank 2) |
| Chân 59 | I/O — General-purpose user I/O (Bank 2) |
| Chân 60 | I/O — General-purpose user I/O (Bank 2) |
| Chân 61 | I/O — General-purpose user I/O (Bank 2) |
| Chân 62 | I/O — General-purpose user I/O (Bank 2) |
| Chân 63 | I/O — General-purpose user I/O (Bank 2) |
| Chân 64 | I/O — General-purpose user I/O (Bank 2) |
| Chân 65 | I/O — General-purpose user I/O (Bank 2) |
| Chân 66 | I/O — General-purpose user I/O (Bank 2) |
| Chân 67 | I/O — General-purpose user I/O (Bank 2) |
| Chân 68 | I/O — General-purpose user I/O (Bank 2) |
| Chân 69 | I/O — General-purpose user I/O (Bank 2) |
| Chân 70 | I/O — General-purpose user I/O (Bank 2) |
| Chân 71 | I/O — General-purpose user I/O (Bank 2) |
| Chân 72 | I/O — General-purpose user I/O (Bank 2) |
| Chân 73 | I/O — General-purpose user I/O (Bank 2) |
| Chân 74 | I/O — General-purpose user I/O (Bank 2) |
| Chân 75 | I/O — General-purpose user I/O (Bank 2) |
| Chân 76 | I/O — General-purpose user I/O (Bank 2) |
| Chân 77 | I/O — General-purpose user I/O (Bank 2) |
| Chân 78 | I/O — General-purpose user I/O (Bank 2) |
| Chân 79 | I/O — General-purpose user I/O (Bank 2) |
| Chân 80 | I/O — General-purpose user I/O (Bank 2) |
| Chân 81 | I/O — General-purpose user I/O (Bank 2) |
| Chân 82 | I/O — General-purpose user I/O (Bank 2) |
| Chân 83 | I/O — General-purpose user I/O (Bank 2) |
| Chân 84 | I/O — General-purpose user I/O (Bank 2) |
| Chân 85 | I/O — General-purpose user I/O (Bank 2) |
| Chân 86 | I/O — General-purpose user I/O (Bank 2) |
| Chân 87 | I/O — General-purpose user I/O (Bank 2) |
| Chân 88 | I/O — General-purpose user I/O (Bank 2) |
| Chân 89 | I/O — General-purpose user I/O (Bank 2) |
| Chân 90 | I/O — General-purpose user I/O (Bank 2) |
| Chân 91 | I/O — General-purpose user I/O (Bank 2) |
| Chân 92 | I/O — General-purpose user I/O (Bank 2) |
| Chân 93 | I/O — General-purpose user I/O (Bank 2) |
| Chân 94 | I/O — General-purpose user I/O (Bank 2) |
| Chân 95 | I/O — General-purpose user I/O (Bank 2) |
| Chân 96 | I/O — General-purpose user I/O (Bank 2) |
| Chân 97 | I/O — General-purpose user I/O (Bank 2) |
| Chân 98 | I/O — General-purpose user I/O (Bank 2) |
| Chân 99 | I/O — General-purpose user I/O (Bank 2) |
| Chân 100 | I/O — General-purpose user I/O (Bank 2) |
| Chân 101 | I/O — General-purpose user I/O (Bank 2) |
| Chân 102 | I/O — General-purpose user I/O (Bank 2) |
| Chân 103 | I/O — General-purpose user I/O (Bank 2) |
| Chân 104 | I/O — General-purpose user I/O (Bank 2) |
| Chân 105 | VCCINT — 2.5 V core power supply |
| Chân 106 | GND — Ground |
| Chân 107 | I/O — General-purpose user I/O (Bank 3) |
| Chân 108 | I/O — General-purpose user I/O (Bank 3) |
| Chân 109 | I/O — General-purpose user I/O (Bank 3) |
| Chân 110 | I/O — General-purpose user I/O (Bank 3) |
| Chân 111 | I/O — General-purpose user I/O (Bank 3) |
| Chân 112 | I/O — General-purpose user I/O (Bank 3) |
| Chân 113 | I/O — General-purpose user I/O (Bank 3) |
| Chân 114 | I/O — General-purpose user I/O (Bank 3) |
| Chân 115 | I/O — General-purpose user I/O (Bank 3) |
| Chân 116 | I/O — General-purpose user I/O (Bank 3) |
| Chân 117 | I/O — General-purpose user I/O (Bank 3) |
| Chân 118 | I/O — General-purpose user I/O (Bank 3) |
| Chân 119 | I/O — General-purpose user I/O (Bank 3) |
| Chân 120 | I/O — General-purpose user I/O (Bank 3) |
| Chân 121 | I/O — General-purpose user I/O (Bank 3) |
| Chân 122 | I/O — General-purpose user I/O (Bank 3) |
| Chân 123 | I/O — General-purpose user I/O (Bank 3) |
| Chân 124 | I/O — General-purpose user I/O (Bank 3) |
| Chân 125 | I/O — General-purpose user I/O (Bank 3) |
| Chân 126 | I/O — General-purpose user I/O (Bank 3) |
| Chân 127 | I/O — General-purpose user I/O (Bank 3) |
| Chân 128 | I/O — General-purpose user I/O (Bank 3) |
| Chân 129 | I/O — General-purpose user I/O (Bank 3) |
| Chân 130 | I/O — General-purpose user I/O (Bank 3) |
| Chân 131 | I/O — General-purpose user I/O (Bank 3) |
| Chân 132 | I/O — General-purpose user I/O (Bank 3) |
| Chân 133 | I/O — General-purpose user I/O (Bank 3) |
| Chân 134 | I/O — General-purpose user I/O (Bank 3) |
| Chân 135 | I/O — General-purpose user I/O (Bank 3) |
| Chân 136 | I/O — General-purpose user I/O (Bank 3) |
| Chân 137 | I/O — General-purpose user I/O (Bank 3) |
| Chân 138 | I/O — General-purpose user I/O (Bank 3) |
| Chân 139 | I/O — General-purpose user I/O (Bank 3) |
| Chân 140 | I/O — General-purpose user I/O (Bank 3) |
| Chân 141 | I/O — General-purpose user I/O (Bank 3) |
| Chân 142 | I/O — General-purpose user I/O (Bank 3) |
| Chân 143 | I/O — General-purpose user I/O (Bank 3) |
| Chân 144 | I/O — General-purpose user I/O (Bank 3) |
| Chân 145 | I/O — General-purpose user I/O (Bank 3) |
| Chân 146 | I/O — General-purpose user I/O (Bank 3) |
| Chân 147 | I/O — General-purpose user I/O (Bank 3) |
| Chân 148 | I/O — General-purpose user I/O (Bank 3) |
| Chân 149 | I/O — General-purpose user I/O (Bank 3) |
| Chân 150 | I/O — General-purpose user I/O (Bank 3) |
| Chân 151 | I/O — General-purpose user I/O (Bank 3) |
| Chân 152 | I/O — General-purpose user I/O (Bank 3) |
| Chân 153 | I/O — General-purpose user I/O (Bank 3) |
| Chân 154 | I/O — General-purpose user I/O (Bank 3) |
| Chân 155 | I/O — General-purpose user I/O (Bank 3) |
| Chân 156 | I/O — General-purpose user I/O (Bank 3) |
| Chân 157 | VCCINT — 2.5 V core power supply |
| Chân 158 | GND — Ground |
| Chân 159 | I/O — General-purpose user I/O (Bank 4) |
| Chân 160 | I/O — General-purpose user I/O (Bank 4) |
| Chân 161 | I/O — General-purpose user I/O (Bank 4) |
| Chân 162 | I/O — General-purpose user I/O (Bank 4) |
| Chân 163 | I/O — General-purpose user I/O (Bank 4) |
| Chân 164 | I/O — General-purpose user I/O (Bank 4) |
| Chân 165 | I/O — General-purpose user I/O (Bank 4) |
| Chân 166 | I/O — General-purpose user I/O (Bank 4) |
| Chân 167 | I/O — General-purpose user I/O (Bank 4) |
| Chân 168 | I/O — General-purpose user I/O (Bank 4) |
| Chân 169 | I/O — General-purpose user I/O (Bank 4) |
| Chân 170 | I/O — General-purpose user I/O (Bank 4) |
| Chân 171 | I/O — General-purpose user I/O (Bank 4) |
| Chân 172 | I/O — General-purpose user I/O (Bank 4) |
| Chân 173 | I/O — General-purpose user I/O (Bank 4) |
| Chân 174 | I/O — General-purpose user I/O (Bank 4) |
| Chân 175 | I/O — General-purpose user I/O (Bank 4) |
| Chân 176 | I/O — General-purpose user I/O (Bank 4) |
| Chân 177 | I/O — General-purpose user I/O (Bank 4) |
| Chân 178 | I/O — General-purpose user I/O (Bank 4) |
| Chân 179 | I/O — General-purpose user I/O (Bank 4) |
| Chân 180 | I/O — General-purpose user I/O (Bank 4) |
| Chân 181 | I/O — General-purpose user I/O (Bank 4) |
| Chân 182 | I/O — General-purpose user I/O (Bank 4) |
| Chân 183 | I/O — General-purpose user I/O (Bank 4) |
| Chân 184 | I/O — General-purpose user I/O (Bank 4) |
| Chân 185 | I/O — General-purpose user I/O (Bank 4) |
| Chân 186 | I/O — General-purpose user I/O (Bank 4) |
| Chân 187 | I/O — General-purpose user I/O (Bank 4) |
| Chân 188 | I/O — General-purpose user I/O (Bank 4) |
| Chân 189 | I/O — General-purpose user I/O (Bank 4) |
| Chân 190 | I/O — General-purpose user I/O (Bank 4) |
| Chân 191 | I/O — General-purpose user I/O (Bank 4) |
| Chân 192 | I/O — General-purpose user I/O (Bank 4) |
| Chân 193 | I/O — General-purpose user I/O (Bank 4) |
| Chân 194 | I/O — General-purpose user I/O (Bank 4) |
| Chân 195 | I/O — General-purpose user I/O (Bank 4) |
| Chân 196 | I/O — General-purpose user I/O (Bank 4) |
| Chân 197 | I/O — General-purpose user I/O (Bank 4) |
| Chân 198 | I/O — General-purpose user I/O (Bank 4) |
| Chân 199 | I/O — General-purpose user I/O (Bank 4) |
| Chân 200 | I/O — General-purpose user I/O (Bank 4) |
| Chân 201 | I/O — General-purpose user I/O (Bank 4) |
| Chân 202 | I/O — General-purpose user I/O (Bank 4) |
| Chân 203 | I/O — General-purpose user I/O (Bank 4) |
| Chân 204 | I/O — General-purpose user I/O (Bank 4) |
| Chân 205 | TDI — JTAG test data input |
| Chân 206 | TMS — JTAG test mode select |
| Chân 207 | TCK — JTAG test clock |
| Chân 208 | TDO — JTAG test data output |
Ứng dụng tiêu biểu
EPM7512BQC208-5 phù hợp cho 6 Áp dụngs: PCI/ISA Bus Glue Logic, DSP and Microcontroller Interface Logic, Industrial Control State Machines, Memory Controller and Address Decoding, Telecom and Networking Line Cards, Legacy Board Sustainment and Repair.
PCI/ISA Bus Glue Logic
The EPM7512BQC208-5 fits PCI and ISA bus glue logic because its 5 ns pin-to-pin delay and 163.9 MHz internal frequency provide deterministic, single-cycle address decoding and handshake generation without the routing-dependent timing of an FPGA. With 176 user I/O and 512 macrocells, it can absorb bus transceivers, wait-state generators, and chip-select decoders in one device. The EEPROM configuration means the logic is live within microseconds of power-up, satisfying PCI's requirement that configuration logic be ready before the host releases reset. A typical implementation places the CPLD between the host bridge and peripheral devices, decoding address and command lines and driving chip selects; the trade-off is that the 2.5 V core requires level-compatible I/O planning for 3.3 V or 5 V bus signals.
Được đề xuất
DSP and Microcontroller Interface Logic
The EPM7512BQC208-5 is well suited to interfacing DSPs and microcontrollers to peripherals because its 512 macrocells can implement address decoding, wait-state generation, FIFO control, and interrupt aggregation while its 5 ns tPD keeps interface timing predictable. The 176 user I/O pins allow wide data and address buses to be routed directly, and the non-volatile EEPROM configuration removes the boot-time dependency that an SRAM-based FPGA would impose on the host processor. In a typical design the CPLD sits between a DSP's external memory interface and devices such as ADCs, DACs, or dual-port RAM, translating bus protocols and generating control strobes. The main trade-off is static power: the MAX 7000B architecture draws more quiescent current than modern MAX V or MAX 10 devices, which matters in always-on systems.
Được đề xuất
Industrial Control State Machines
The EPM7512BQC208-5 suits industrial control state machines because its 512 macrocells and 16 logic array blocks can implement multiple concurrent state machines with deterministic 5 ns response, and its EEPROM configuration survives power cycling without a battery or boot PROM. In factory automation equipment, the CPLD typically sequences actuators, debounces sensor inputs, and enforces safety interlocks, where a missed or jittery transition can cause mechanical damage. The 176 I/O pins allow direct connection to opto-isolated inputs and relay drivers, and the 0C to 70C commercial temperature range is adequate for cabinet-mounted controllers. The trade-off is that the commercial grade is not rated for the -40C to +85C industrial range, so designs exposed to wide ambient swings should use an industrial-grade MAX 7000B variant instead.
Được đề xuất
Memory Controller and Address Decoding
The EPM7512BQC208-5 is used for memory controller and address-decoding logic because its 5 ns propagation delay allows chip-select and RAS/CAS generation to meet tight DRAM and SRAM timing windows, while 512 macrocells can hold refresh counters, wait-state logic, and bank decoders simultaneously. The 176 user I/O pins accommodate wide address and data buses, and the EEPROM configuration ensures the controller is active immediately at power-up, before the processor begins its first memory fetch. In a typical board the CPLD decodes the processor address bus into bank selects and generates the memory control strobes, replacing several discrete 74-series devices. The trade-off is that the 2.5 V core limits direct interfacing to 5 V memory buses, so level shifters or series resistors may be required.
Được đề xuất
Telecom and Networking Line Cards
The EPM7512BQC208-5 fits telecom and networking line cards because its 163.9 MHz internal frequency and 5 ns tPD support the handshake, framing, and backplane-interface logic used in T1/E1 and early Ethernet line cards, while 512 macrocells absorb glue logic that would otherwise require several discrete devices. The 176 user I/O pins allow direct connection to backplane connectors and PHY devices, and the non-volatile EEPROM configuration means the card's logic is ready immediately after hot-swap power-up, avoiding the configuration delay of an SRAM FPGA. In a typical design the CPLD implements the local bus interface, interrupt aggregation, and LED/status logic. The trade-off is that the MAX 7000B family is obsolete, so new line-card designs should migrate to an active CPLD or small FPGA family.
Được đề xuất
Legacy Board Sustainment and Repair
The EPM7512BQC208-5 is widely used for legacy board sustainment because it is the original MAX 7000B device found on many 1990s and 2000s industrial, medical, and telecom boards, and replacement units must match the original 208-pin PQFP footprint and 2.5 V core exactly. When a board fails, the CPLD is often the only programmable device that cannot be substituted without a layout change, so sourcing genuine EPM7512BQC208-5 stock with valid date codes is critical. The EEPROM configuration also means a replacement device must be reprogrammed with the original JEDEC or POF file before installation. The trade-off is obsolescence risk: because the family is no longer produced, sustainment engineers should qualify the EPM7512BQC208-10 as a slower drop-in and stock both grades.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho EPM7512BQC208-5 — 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 | EPM7512BFC256-7 | EPM7512BFI256-7 | EPM7512AEQC208-7 |
|---|---|---|---|---|---|
| Package | 208-pin PQFP (28x28 mm) | 208-pin PQFP (28x28 mm) - same | 256-pin FineLine BGA | 256-pin FineLine BGA | 208-pin PQFP (28x28 mm) - same |
| Brand | Altera | Altera | Altera | Altera | Altera |
| Propagation Delay (tPD) | 5 ns | 10 ns | 7 ns | 7 ns | 7 ns |
| Internal Frequency | 163.9 MHz | 125 MHz (approx.) | 142.8 MHz (approx.) | 142.8 MHz (approx.) | 142.8 MHz (approx.) |
| Macrocells | 512 | 512 | 512 | 512 | 512 |
| User I/O Pins | 176 | 176 | 212 | 212 | 176 |
| Core Supply Voltage | 2.375 V to 2.625 V (2.5 V nominal) | 2.375 V to 2.625 V | 2.375 V to 2.625 V | 2.375 V to 2.625 V | 3.0 V to 3.6 V (3.3 V nominal) |
| Operating Temperature | 0C to 70C (commercial) | 0C to 70C (commercial) | 0C to 70C (commercial) | -40C to +85C (industrial) | 0C to 70C (commercial) |
| Configuration Memory | EEPROM (non-volatile) | EEPROM (non-volatile) | EEPROM (non-volatile) | EEPROM (non-volatile) | EEPROM (non-volatile) |
| JTAG Support | IEEE 1149.1 boundary-scan | IEEE 1149.1 boundary-scan | IEEE 1149.1 boundary-scan | IEEE 1149.1 boundary-scan | IEEE 1149.1 boundary-scan |
Bảo phân biệt quan trọng
- Fastest MAX 7000B speed grade (vsEPM7512BQC208-10)
- 208-pin PQFP footprint with 176 I/O (vsEPM7512BFC256-7)
- 2.5 V core for lower dynamic power (vsEPM7512AEQC208-7)
- Commercial temperature grade at lowest cost (vsEPM7512BFI256-7)
Ghi chú thiết kế
Decouple every VCCINT pin with a 0.1 uF ceramic capacitor placed within 5 mm of the pin, plus at least one 10 uF bulk capacitor per power plane region. The MAX 7000B core draws transient current during macrocell switching, and inadequate decoupling causes ground bounce that can corrupt EEPROM configuration during ISP. Estimated: at 163.9 MHz with 512 macrocells toggling, dynamic current can exceed 100 mA, so size the 2.5 V regulator for at least 300 mA with good transient response.
Route the JTAG signals (TCK, TMS, TDI, TDO) as short, controlled-impedance traces and keep TCK away from high-speed user I/O to avoid clock injection during in-system programming. Terminate TDO with a pull-up and TCK with a pull-down per the MAX 7000B programming guidelines. Place the JTAG header close to the device so the programming cable does not add excessive stub length, which can cause ISP failures on marginal setups.
Do not assume the EPM7512BQC208-5 is a drop-in for 5 V MAX 7000S designs: the 2.5 V core requires level-compatible I/O planning for 3.3 V or 5 V peripherals, and direct 5 V drive into I/O pins can exceed absolute maximum ratings. Also verify that the -5 speed grade timing is actually required; substituting the EPM7512BQC208-10 (10 ns) reduces cost and improves availability if the critical path has margin. Estimated: a 10 ns tPD adds 5 ns to each combinational path, which at 50 MHz consumes 25% of a 20 ns period.
Thông tin tuân thủ
Compliance data was not present in the verified web data for this obsolete MAX 7000B device. RoHS, REACH, lead-free, and halogen-free status must be confirmed with the distributor or by date-code inspection before use in regulated markets.
