EPM7512BQC208-5 - MAX 7000B CPLD 512 Macro 176 IO | Altera
MPN: EPM7512BQC208-5 β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $52.96 | $52.96 |
| 10 | $49.78 | $497.80 |
| 100 | $45.02 | $4,502.00 |
| 500 | $41.31 | $20,655.00 |
| 1,000 | $38.66 | $38,660.00 |
Drop-in alternatives for EPM7512BQC208-5 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
EPM7512BQC208-10
β Drop-Inβ In Stock
$19.4 / Unit
View Datasheet βEPM7512BFC256-7
β Drop-Inβ In Stock
Contact for price
View Datasheet βEPM7512BFI256-7
β Drop-Inβ In Stock
$62 / Unit
View Datasheet βEPM7512AEQC208-7
β Drop-Inπ Reference alternative (not in catalog)
EPM7512AEQC208-10
β Drop-Inπ Reference alternative (not in catalog)
EPM7512BQC208-5 Maximum Ratings & Electrical Characteristics
| 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) |
| Package | 208-pin PQFP (28x28 mm) |
| Package Code | FQFP / S-PQFP-G208 |
| Terminal Pitch | 0.5 mm |
| Mounting Type | Surface Mount |
| Operating Temperature | 0C to 70C (commercial) |
| JTAG Support | IEEE 1149.1 boundary-scan |
| Speed Grade | -5 (fastest MAX 7000B grade) |
EPM7512BQC208-5 Pin Configuration
| Pin 1 | I/O β General-purpose user I/O (Bank 1) |
| Pin 2 | I/O β General-purpose user I/O (Bank 1) |
| Pin 3 | I/O β General-purpose user I/O (Bank 1) |
| Pin 4 | I/O β General-purpose user I/O (Bank 1) |
| Pin 5 | I/O β General-purpose user I/O (Bank 1) |
| Pin 6 | I/O β General-purpose user I/O (Bank 1) |
| Pin 7 | I/O β General-purpose user I/O (Bank 1) |
| Pin 8 | I/O β General-purpose user I/O (Bank 1) |
| Pin 9 | I/O β General-purpose user I/O (Bank 1) |
| Pin 10 | I/O β General-purpose user I/O (Bank 1) |
| Pin 11 | I/O β General-purpose user I/O (Bank 1) |
| Pin 12 | I/O β General-purpose user I/O (Bank 1) |
| Pin 13 | I/O β General-purpose user I/O (Bank 1) |
| Pin 14 | I/O β General-purpose user I/O (Bank 1) |
| Pin 15 | I/O β General-purpose user I/O (Bank 1) |
| Pin 16 | I/O β General-purpose user I/O (Bank 1) |
| Pin 17 | I/O β General-purpose user I/O (Bank 1) |
| Pin 18 | I/O β General-purpose user I/O (Bank 1) |
| Pin 19 | I/O β General-purpose user I/O (Bank 1) |
| Pin 20 | I/O β General-purpose user I/O (Bank 1) |
| Pin 21 | I/O β General-purpose user I/O (Bank 1) |
| Pin 22 | I/O β General-purpose user I/O (Bank 1) |
| Pin 23 | I/O β General-purpose user I/O (Bank 1) |
| Pin 24 | I/O β General-purpose user I/O (Bank 1) |
| Pin 25 | I/O β General-purpose user I/O (Bank 1) |
| Pin 26 | I/O β General-purpose user I/O (Bank 1) |
| Pin 27 | I/O β General-purpose user I/O (Bank 1) |
| Pin 28 | I/O β General-purpose user I/O (Bank 1) |
| Pin 29 | I/O β General-purpose user I/O (Bank 1) |
| Pin 30 | I/O β General-purpose user I/O (Bank 1) |
| Pin 31 | I/O β General-purpose user I/O (Bank 1) |
| Pin 32 | I/O β General-purpose user I/O (Bank 1) |
| Pin 33 | I/O β General-purpose user I/O (Bank 1) |
| Pin 34 | I/O β General-purpose user I/O (Bank 1) |
| Pin 35 | I/O β General-purpose user I/O (Bank 1) |
| Pin 36 | I/O β General-purpose user I/O (Bank 1) |
| Pin 37 | I/O β General-purpose user I/O (Bank 1) |
| Pin 38 | I/O β General-purpose user I/O (Bank 1) |
| Pin 39 | I/O β General-purpose user I/O (Bank 1) |
| Pin 40 | I/O β General-purpose user I/O (Bank 1) |
| Pin 41 | I/O β General-purpose user I/O (Bank 1) |
| Pin 42 | I/O β General-purpose user I/O (Bank 1) |
| Pin 43 | I/O β General-purpose user I/O (Bank 1) |
| Pin 44 | I/O β General-purpose user I/O (Bank 1) |
| Pin 45 | I/O β General-purpose user I/O (Bank 1) |
| Pin 46 | I/O β General-purpose user I/O (Bank 1) |
| Pin 47 | I/O β General-purpose user I/O (Bank 1) |
| Pin 48 | I/O β General-purpose user I/O (Bank 1) |
| Pin 49 | I/O β General-purpose user I/O (Bank 1) |
| Pin 50 | I/O β General-purpose user I/O (Bank 1) |
| Pin 51 | I/O β General-purpose user I/O (Bank 1) |
| Pin 52 | I/O β General-purpose user I/O (Bank 1) |
| Pin 53 | VCCINT β 2.5 V core power supply |
| Pin 54 | GND β Ground |
| Pin 55 | I/O β General-purpose user I/O (Bank 2) |
| Pin 56 | I/O β General-purpose user I/O (Bank 2) |
| Pin 57 | I/O β General-purpose user I/O (Bank 2) |
| Pin 58 | I/O β General-purpose user I/O (Bank 2) |
| Pin 59 | I/O β General-purpose user I/O (Bank 2) |
| Pin 60 | I/O β General-purpose user I/O (Bank 2) |
| Pin 61 | I/O β General-purpose user I/O (Bank 2) |
| Pin 62 | I/O β General-purpose user I/O (Bank 2) |
| Pin 63 | I/O β General-purpose user I/O (Bank 2) |
| Pin 64 | I/O β General-purpose user I/O (Bank 2) |
| Pin 65 | I/O β General-purpose user I/O (Bank 2) |
| Pin 66 | I/O β General-purpose user I/O (Bank 2) |
| Pin 67 | I/O β General-purpose user I/O (Bank 2) |
| Pin 68 | I/O β General-purpose user I/O (Bank 2) |
| Pin 69 | I/O β General-purpose user I/O (Bank 2) |
| Pin 70 | I/O β General-purpose user I/O (Bank 2) |
| Pin 71 | I/O β General-purpose user I/O (Bank 2) |
| Pin 72 | I/O β General-purpose user I/O (Bank 2) |
| Pin 73 | I/O β General-purpose user I/O (Bank 2) |
| Pin 74 | I/O β General-purpose user I/O (Bank 2) |
| Pin 75 | I/O β General-purpose user I/O (Bank 2) |
| Pin 76 | I/O β General-purpose user I/O (Bank 2) |
| Pin 77 | I/O β General-purpose user I/O (Bank 2) |
| Pin 78 | I/O β General-purpose user I/O (Bank 2) |
| Pin 79 | I/O β General-purpose user I/O (Bank 2) |
| Pin 80 | I/O β General-purpose user I/O (Bank 2) |
| Pin 81 | I/O β General-purpose user I/O (Bank 2) |
| Pin 82 | I/O β General-purpose user I/O (Bank 2) |
| Pin 83 | I/O β General-purpose user I/O (Bank 2) |
| Pin 84 | I/O β General-purpose user I/O (Bank 2) |
| Pin 85 | I/O β General-purpose user I/O (Bank 2) |
| Pin 86 | I/O β General-purpose user I/O (Bank 2) |
| Pin 87 | I/O β General-purpose user I/O (Bank 2) |
| Pin 88 | I/O β General-purpose user I/O (Bank 2) |
| Pin 89 | I/O β General-purpose user I/O (Bank 2) |
| Pin 90 | I/O β General-purpose user I/O (Bank 2) |
| Pin 91 | I/O β General-purpose user I/O (Bank 2) |
| Pin 92 | I/O β General-purpose user I/O (Bank 2) |
| Pin 93 | I/O β General-purpose user I/O (Bank 2) |
| Pin 94 | I/O β General-purpose user I/O (Bank 2) |
| Pin 95 | I/O β General-purpose user I/O (Bank 2) |
| Pin 96 | I/O β General-purpose user I/O (Bank 2) |
| Pin 97 | I/O β General-purpose user I/O (Bank 2) |
| Pin 98 | I/O β General-purpose user I/O (Bank 2) |
| Pin 99 | I/O β General-purpose user I/O (Bank 2) |
| Pin 100 | I/O β General-purpose user I/O (Bank 2) |
| Pin 101 | I/O β General-purpose user I/O (Bank 2) |
| Pin 102 | I/O β General-purpose user I/O (Bank 2) |
| Pin 103 | I/O β General-purpose user I/O (Bank 2) |
| Pin 104 | I/O β General-purpose user I/O (Bank 2) |
| Pin 105 | VCCINT β 2.5 V core power supply |
| Pin 106 | GND β Ground |
| Pin 107 | I/O β General-purpose user I/O (Bank 3) |
| Pin 108 | I/O β General-purpose user I/O (Bank 3) |
| Pin 109 | I/O β General-purpose user I/O (Bank 3) |
| Pin 110 | I/O β General-purpose user I/O (Bank 3) |
| Pin 111 | I/O β General-purpose user I/O (Bank 3) |
| Pin 112 | I/O β General-purpose user I/O (Bank 3) |
| Pin 113 | I/O β General-purpose user I/O (Bank 3) |
| Pin 114 | I/O β General-purpose user I/O (Bank 3) |
| Pin 115 | I/O β General-purpose user I/O (Bank 3) |
| Pin 116 | I/O β General-purpose user I/O (Bank 3) |
| Pin 117 | I/O β General-purpose user I/O (Bank 3) |
| Pin 118 | I/O β General-purpose user I/O (Bank 3) |
| Pin 119 | I/O β General-purpose user I/O (Bank 3) |
| Pin 120 | I/O β General-purpose user I/O (Bank 3) |
| Pin 121 | I/O β General-purpose user I/O (Bank 3) |
| Pin 122 | I/O β General-purpose user I/O (Bank 3) |
| Pin 123 | I/O β General-purpose user I/O (Bank 3) |
| Pin 124 | I/O β General-purpose user I/O (Bank 3) |
| Pin 125 | I/O β General-purpose user I/O (Bank 3) |
| Pin 126 | I/O β General-purpose user I/O (Bank 3) |
| Pin 127 | I/O β General-purpose user I/O (Bank 3) |
| Pin 128 | I/O β General-purpose user I/O (Bank 3) |
| Pin 129 | I/O β General-purpose user I/O (Bank 3) |
| Pin 130 | I/O β General-purpose user I/O (Bank 3) |
| Pin 131 | I/O β General-purpose user I/O (Bank 3) |
| Pin 132 | I/O β General-purpose user I/O (Bank 3) |
| Pin 133 | I/O β General-purpose user I/O (Bank 3) |
| Pin 134 | I/O β General-purpose user I/O (Bank 3) |
| Pin 135 | I/O β General-purpose user I/O (Bank 3) |
| Pin 136 | I/O β General-purpose user I/O (Bank 3) |
| Pin 137 | I/O β General-purpose user I/O (Bank 3) |
| Pin 138 | I/O β General-purpose user I/O (Bank 3) |
| Pin 139 | I/O β General-purpose user I/O (Bank 3) |
| Pin 140 | I/O β General-purpose user I/O (Bank 3) |
| Pin 141 | I/O β General-purpose user I/O (Bank 3) |
| Pin 142 | I/O β General-purpose user I/O (Bank 3) |
| Pin 143 | I/O β General-purpose user I/O (Bank 3) |
| Pin 144 | I/O β General-purpose user I/O (Bank 3) |
| Pin 145 | I/O β General-purpose user I/O (Bank 3) |
| Pin 146 | I/O β General-purpose user I/O (Bank 3) |
| Pin 147 | I/O β General-purpose user I/O (Bank 3) |
| Pin 148 | I/O β General-purpose user I/O (Bank 3) |
| Pin 149 | I/O β General-purpose user I/O (Bank 3) |
| Pin 150 | I/O β General-purpose user I/O (Bank 3) |
| Pin 151 | I/O β General-purpose user I/O (Bank 3) |
| Pin 152 | I/O β General-purpose user I/O (Bank 3) |
| Pin 153 | I/O β General-purpose user I/O (Bank 3) |
| Pin 154 | I/O β General-purpose user I/O (Bank 3) |
| Pin 155 | I/O β General-purpose user I/O (Bank 3) |
| Pin 156 | I/O β General-purpose user I/O (Bank 3) |
| Pin 157 | VCCINT β 2.5 V core power supply |
| Pin 158 | GND β Ground |
| Pin 159 | I/O β General-purpose user I/O (Bank 4) |
| Pin 160 | I/O β General-purpose user I/O (Bank 4) |
| Pin 161 | I/O β General-purpose user I/O (Bank 4) |
| Pin 162 | I/O β General-purpose user I/O (Bank 4) |
| Pin 163 | I/O β General-purpose user I/O (Bank 4) |
| Pin 164 | I/O β General-purpose user I/O (Bank 4) |
| Pin 165 | I/O β General-purpose user I/O (Bank 4) |
| Pin 166 | I/O β General-purpose user I/O (Bank 4) |
| Pin 167 | I/O β General-purpose user I/O (Bank 4) |
| Pin 168 | I/O β General-purpose user I/O (Bank 4) |
| Pin 169 | I/O β General-purpose user I/O (Bank 4) |
| Pin 170 | I/O β General-purpose user I/O (Bank 4) |
| Pin 171 | I/O β General-purpose user I/O (Bank 4) |
| Pin 172 | I/O β General-purpose user I/O (Bank 4) |
| Pin 173 | I/O β General-purpose user I/O (Bank 4) |
| Pin 174 | I/O β General-purpose user I/O (Bank 4) |
| Pin 175 | I/O β General-purpose user I/O (Bank 4) |
| Pin 176 | I/O β General-purpose user I/O (Bank 4) |
| Pin 177 | I/O β General-purpose user I/O (Bank 4) |
| Pin 178 | I/O β General-purpose user I/O (Bank 4) |
| Pin 179 | I/O β General-purpose user I/O (Bank 4) |
| Pin 180 | I/O β General-purpose user I/O (Bank 4) |
| Pin 181 | I/O β General-purpose user I/O (Bank 4) |
| Pin 182 | I/O β General-purpose user I/O (Bank 4) |
| Pin 183 | I/O β General-purpose user I/O (Bank 4) |
| Pin 184 | I/O β General-purpose user I/O (Bank 4) |
| Pin 185 | I/O β General-purpose user I/O (Bank 4) |
| Pin 186 | I/O β General-purpose user I/O (Bank 4) |
| Pin 187 | I/O β General-purpose user I/O (Bank 4) |
| Pin 188 | I/O β General-purpose user I/O (Bank 4) |
| Pin 189 | I/O β General-purpose user I/O (Bank 4) |
| Pin 190 | I/O β General-purpose user I/O (Bank 4) |
| Pin 191 | I/O β General-purpose user I/O (Bank 4) |
| Pin 192 | I/O β General-purpose user I/O (Bank 4) |
| Pin 193 | I/O β General-purpose user I/O (Bank 4) |
| Pin 194 | I/O β General-purpose user I/O (Bank 4) |
| Pin 195 | I/O β General-purpose user I/O (Bank 4) |
| Pin 196 | I/O β General-purpose user I/O (Bank 4) |
| Pin 197 | I/O β General-purpose user I/O (Bank 4) |
| Pin 198 | I/O β General-purpose user I/O (Bank 4) |
| Pin 199 | I/O β General-purpose user I/O (Bank 4) |
| Pin 200 | I/O β General-purpose user I/O (Bank 4) |
| Pin 201 | I/O β General-purpose user I/O (Bank 4) |
| Pin 202 | I/O β General-purpose user I/O (Bank 4) |
| Pin 203 | I/O β General-purpose user I/O (Bank 4) |
| Pin 204 | I/O β General-purpose user I/O (Bank 4) |
| Pin 205 | TDI β JTAG test data input |
| Pin 206 | TMS β JTAG test mode select |
| Pin 207 | TCK β JTAG test clock |
| Pin 208 | TDO β JTAG test data output |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
EPM7512BQC208-5 is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for EPM7512BQC208-5 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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 |
Key Differentiators
- Fastest MAX 7000B speed grade (vs EPM7512BQC208-10)
- 208-pin PQFP footprint with 176 I/O (vs EPM7512BFC256-7)
- 2.5 V core for lower dynamic power (vs EPM7512AEQC208-7)
- Commercial temperature grade at lowest cost (vs EPM7512BFI256-7)
Design Notes
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.
Compliance Information
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.
