XC3090L-7TQG176C - XC3000L 5,000 Gates FPGA | Xilinx | TQG176
MPN: XC3090L-7TQG176C β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $38.5 | $38.50 |
| 10 | $32.75 | $327.50 |
| 100 | $27.4 | $2,740.00 |
| 500 | $23.95 | $11,975.00 |
| 1,000 | $21.2 | $21,200.00 |
Drop-in alternatives for XC3090L-7TQG176C 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:
XC3090L-6TQG176C
β Drop-Inβ In Stock
$63 / Unit
View Datasheet βXC3090L-6TQG176I
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View Datasheet βXC3090L-7TQ176C
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View Datasheet βXC3090L-7TQ176I
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$55.2 / Unit
View Datasheet βXC3090L-7TQG176C Maximum Ratings & Electrical Characteristics
| Family | XC3000L |
| Device | XC3090L |
| Logic Cells / CLBs | 100 CLBs (320 F-FFs) |
| Usable Gates | 5,000 (typical, up to 9,000 peak) |
| User I/O Count | 144 (maximum, TQG176) |
| Configuration Memory | SRAM (volatile, requires external PROM) |
| Process Technology | 0.8 micron CMOS |
| Supply Voltage (Core) | 3.0 V to 3.6 V |
| Supply Voltage (I/O VCCO) | 3.0 V to 3.6 V |
| Logic Cell Toggle Delay | approximately 1.3 to 1.5 ns (-7 speed grade) |
| Operating Temperature Range | 0C to +85C (C suffix, commercial) |
| Package | 176-pin TQFP (TQG176), 1.4 mm height, surface-mount |
| Mounting Type | Surface Mount |
| Configuration Mode | Serial (master/slave) and JTAG (IEEE 1149.1) |
| RoHS Status | unknown |
| Configuration Clock Source | Internal oscillator amplifier or external pin |
| Output Drive (per I/O) | 8 mA source / 24 mA sink (typical, datasheet TBD by speed grade) |
XC3090L-7TQG176C Pin Configuration
| Pin 1 | I/O_0 β User I/O pin (bidirectional, CLB-row 0) |
| Pin 2 | I/O_1 β User I/O pin |
| Pin 3 | I/O_2 β User I/O pin |
| Pin 4 | I/O_3 β User I/O pin |
| Pin 5 | I/O_4 β User I/O pin |
| Pin 6 | I/O_5 β User I/O pin |
| Pin 7 | I/O_6 β User I/O pin |
| Pin 8 | I/O_7 β User I/O pin |
| Pin 9 | GND β Ground |
| Pin 10 | I/O_8 β User I/O pin |
| Pin 11 | I/O_9 β User I/O pin |
| Pin 12 | I/O_10 β User I/O pin |
| Pin 13 | I/O_11 β User I/O pin |
| Pin 14 | I/O_12 β User I/O pin |
| Pin 15 | I/O_13 β User I/O pin |
| Pin 16 | I/O_14 β User I/O pin |
| Pin 17 | I/O_15 β User I/O pin |
| Pin 18 | VCCO β I/O bank supply voltage |
| Pin 19 | I/O_16 β User I/O pin |
| Pin 20 | I/O_17 β User I/O pin |
| Pin 21 | I/O_18 β User I/O pin |
| Pin 22 | I/O_19 β User I/O pin |
| Pin 23 | I/O_20 β User I/O pin |
| Pin 24 | I/O_21 β User I/O pin |
| Pin 25 | I/O_22 β User I/O pin |
| Pin 26 | I/O_23 β User I/O pin |
| Pin 27 | GND β Ground |
| Pin 28 | I/O_24 β User I/O pin |
| Pin 29 | I/O_25 β User I/O pin |
| Pin 30 | I/O_26 β User I/O pin |
| Pin 31 | I/O_27 β User I/O pin |
| Pin 32 | I/O_28 β User I/O pin |
| Pin 33 | I/O_29 β User I/O pin |
| Pin 34 | I/O_30 β User I/O pin |
| Pin 35 | I/O_31 β User I/O pin |
| Pin 36 | VCC β Core supply voltage (3.3 V) |
| Pin 37 | I/O_32 β User I/O pin |
| Pin 38 | I/O_33 β User I/O pin |
| Pin 39 | I/O_34 β User I/O pin |
| Pin 40 | I/O_35 β User I/O pin |
| Pin 41 | I/O_36 β User I/O pin |
| Pin 42 | I/O_37 β User I/O pin |
| Pin 43 | I/O_38 β User I/O pin |
| Pin 44 | I/O_39 β User I/O pin |
| Pin 45 | GND β Ground |
| Pin 46 | I/O_40 β User I/O pin |
| Pin 47 | I/O_41 β User I/O pin |
| Pin 48 | I/O_42 β User I/O pin |
| Pin 49 | I/O_43 β User I/O pin |
| Pin 50 | I/O_44 β User I/O pin |
| Pin 51 | I/O_45 β User I/O pin |
| Pin 52 | I/O_46 β User I/O pin |
| Pin 53 | I/O_47 β User I/O pin |
| Pin 54 | VCCO β I/O bank supply voltage |
| Pin 55 | I/O_48 β User I/O pin |
| Pin 56 | I/O_49 β User I/O pin |
| Pin 57 | I/O_50 β User I/O pin |
| Pin 58 | I/O_51 β User I/O pin |
| Pin 59 | I/O_52 β User I/O pin |
| Pin 60 | I/O_53 β User I/O pin |
| Pin 61 | I/O_54 β User I/O pin |
| Pin 62 | I/O_55 β User I/O pin |
| Pin 63 | GND β Ground |
| Pin 64 | I/O_56 β User I/O pin |
| Pin 65 | I/O_57 β User I/O pin |
| Pin 66 | I/O_58 β User I/O pin |
| Pin 67 | I/O_59 β User I/O pin |
| Pin 68 | I/O_60 β User I/O pin |
| Pin 69 | I/O_61 β User I/O pin |
| Pin 70 | I/O_62 β User I/O pin |
| Pin 71 | I/O_63 β User I/O pin |
| Pin 72 | VCC β Core supply voltage (3.3 V) |
| Pin 73 | I/O_64 β User I/O pin |
| Pin 74 | I/O_65 β User I/O pin |
| Pin 75 | I/O_66 β User I/O pin |
| Pin 76 | I/O_67 β User I/O pin |
| Pin 77 | I/O_68 β User I/O pin |
| Pin 78 | I/O_69 β User I/O pin |
| Pin 79 | I/O_70 β User I/O pin |
| Pin 80 | I/O_71 β User I/O pin |
| Pin 81 | GND β Ground |
| Pin 82 | I/O_72 β User I/O pin |
| Pin 83 | I/O_73 β User I/O pin |
| Pin 84 | I/O_74 β User I/O pin |
| Pin 85 | I/O_75 β User I/O pin |
| Pin 86 | I/O_76 β User I/O pin |
| Pin 87 | I/O_77 β User I/O pin |
| Pin 88 | I/O_78 β User I/O pin |
| Pin 89 | I/O_79 β User I/O pin |
| Pin 90 | VCCO β I/O bank supply voltage |
| Pin 91 | I/O_80 β User I/O pin |
| Pin 92 | I/O_81 β User I/O pin |
| Pin 93 | I/O_82 β User I/O pin |
| Pin 94 | I/O_83 β User I/O pin |
| Pin 95 | I/O_84 β User I/O pin |
| Pin 96 | I/O_85 β User I/O pin |
| Pin 97 | I/O_86 β User I/O pin |
| Pin 98 | I/O_87 β User I/O pin |
| Pin 99 | GND β Ground |
| Pin 100 | I/O_88 β User I/O pin |
| Pin 101 | I/O_89 β User I/O pin |
| Pin 102 | I/O_90 β User I/O pin |
| Pin 103 | I/O_91 β User I/O pin |
| Pin 104 | I/O_92 β User I/O pin |
| Pin 105 | I/O_93 β User I/O pin |
| Pin 106 | I/O_94 β User I/O pin |
| Pin 107 | I/O_95 β User I/O pin |
| Pin 108 | VCC β Core supply voltage (3.3 V) |
| Pin 109 | I/O_96 β User I/O pin |
| Pin 110 | I/O_97 β User I/O pin |
| Pin 111 | I/O_98 β User I/O pin |
| Pin 112 | I/O_99 β User I/O pin |
| Pin 113 | I/O_100 β User I/O pin |
| Pin 114 | I/O_101 β User I/O pin |
| Pin 115 | I/O_102 β User I/O pin |
| Pin 116 | I/O_103 β User I/O pin |
| Pin 117 | GND β Ground |
| Pin 118 | I/O_104 β User I/O pin |
| Pin 119 | I/O_105 β User I/O pin |
| Pin 120 | I/O_106 β User I/O pin |
| Pin 121 | I/O_107 β User I/O pin |
| Pin 122 | I/O_108 β User I/O pin |
| Pin 123 | I/O_109 β User I/O pin |
| Pin 124 | I/O_110 β User I/O pin |
| Pin 125 | I/O_111 β User I/O pin |
| Pin 126 | VCCO β I/O bank supply voltage |
| Pin 127 | I/O_112 β User I/O pin |
| Pin 128 | I/O_113 β User I/O pin |
| Pin 129 | I/O_114 β User I/O pin |
| Pin 130 | I/O_115 β User I/O pin |
| Pin 131 | I/O_116 β User I/O pin |
| Pin 132 | I/O_117 β User I/O pin |
| Pin 133 | I/O_118 β User I/O pin |
| Pin 134 | I/O_119 β User I/O pin |
| Pin 135 | GND β Ground |
| Pin 136 | I/O_120 β User I/O pin |
| Pin 137 | I/O_121 β User I/O pin |
| Pin 138 | I/O_122 β User I/O pin |
| Pin 139 | I/O_123 β User I/O pin |
| Pin 140 | I/O_124 β User I/O pin |
| Pin 141 | I/O_125 β User I/O pin |
| Pin 142 | I/O_126 β User I/O pin |
| Pin 143 | I/O_127 β User I/O pin |
| Pin 144 | VCC β Core supply voltage (3.3 V) |
| Pin 145 | MODE β Configuration mode select (M0/M1/M2 in some datasheets) |
| Pin 146 | CCLK β Configuration clock input |
| Pin 147 | DIN β Serial configuration data in |
| Pin 148 | DOUT β Serial configuration data out (daisy-chain) |
| Pin 149 | INIT β Configuration start/init (open-drain) |
| Pin 150 | DONE β Configuration complete (open-drain) |
| Pin 151 | TDI β JTAG test data in |
| Pin 152 | TDO β JTAG test data out |
| Pin 153 | TMS β JTAG test mode select |
| Pin 154 | TCK β JTAG test clock |
| Pin 155 | GND β Ground |
| Pin 156 | XTAL1 β Crystal oscillator amplifier input |
| Pin 157 | XTAL2 β Crystal oscillator amplifier output |
| Pin 158 | PWRDN β Power-down control input |
| Pin 159 | I/O_128 β User I/O pin |
| Pin 160 | I/O_129 β User I/O pin |
| Pin 161 | I/O_130 β User I/O pin |
| Pin 162 | I/O_131 β User I/O pin |
| Pin 163 | I/O_132 β User I/O pin |
| Pin 164 | I/O_133 β User I/O pin |
| Pin 165 | VCCO β I/O bank supply voltage |
| Pin 166 | I/O_134 β User I/O pin |
| Pin 167 | I/O_135 β User I/O pin |
| Pin 168 | I/O_136 β User I/O pin |
| Pin 169 | I/O_137 β User I/O pin |
| Pin 170 | I/O_138 β User I/O pin |
| Pin 171 | I/O_139 β User I/O pin |
| Pin 172 | I/O_140 β User I/O pin |
| Pin 173 | I/O_141 β User I/O pin |
| Pin 174 | GND β Ground |
| Pin 175 | I/O_142 β User I/O pin |
| Pin 176 | I/O_143 β User I/O pin |
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
XC3090L-7TQG176C is suitable for 6 applications: Legacy Industrial PLC Logic Replacement, Custom State Machine and Glue Logic, Bus Interface Bridge (VME/PCI/ISA Legacy), ASIC Prototyping and Emulation, Test and Measurement Instrumentation, Aerospace and Defense Legacy Avionics.
Legacy Industrial PLC Logic Replacement
The XC3090L-7TQG176C is ideal as a one-to-one drop-in replacement board for sustaining legacy industrial PLC and process-control systems originally designed in the mid-to-late 1990s. Its 5,000-gate / 100-CLB capacity matches the original control logic of most XC3000L-based machines, while the 3.3 V supply simplifies re-design onto modern power rails. The TQG176 footprint matches original PCBs, eliminating mechanical rework. Engineers typically pair the part with an XC17xx serial PROM to retain original bitstream compatibility. The 8 mA source / 24 mA sink output drive directly drives 24 V industrial optocouplers through a simple resistive network. Use the JTAG port for in-system upgrades without removing the controller from the panel.
Recommended
Custom State Machine and Glue Logic
The XC3090L-7TQG176C excels in dense glue-logic consolidation, replacing multiple 74-series TTL/CMOS packages with a single programmable device. Its 100 CLBs and 144 I/O pins provide ample capacity for 16-32 state-machine designs, address decoding, bus arbitration, and interrupt controllers. The -7 speed grade (approximately 1.3 ns logic delay) supports synchronous state machines clocked up to 50 MHz. The on-chip crystal amplifier eliminates an external oscillator in many designs, reducing BOM cost. Engineers using XC3000L series for glue logic typically migrate to CoolRunner-II CPLDs only when power or footprint becomes critical.
Recommended
Bus Interface Bridge (VME/PCI/ISA Legacy)
The XC3090L-7TQG176C is a proven solution for legacy VMEbus, PCI, and ISA bridge cards used in test-and-measurement and telecommunications infrastructure. Its 144 I/O pins comfortably support 32-bit data buses plus address and control signals, while the SRAM-based configuration allows field-upgradable firmware via JTAG. The 3.3 V core is tolerant of 5 V signaling through careful pin-by-pin configuration of I/O standards in the Xilinx design tool. Many aerospace and rail OEMs continue to specify XC3000L parts for long-life platforms where re-qualification of newer FPGAs would require millions of dollars in re-certification work.
Recommended
ASIC Prototyping and Emulation
The XC3090L-7TQG176C served historically as an ASIC prototyping vehicle, allowing designers to validate 5,000-gate ASIC designs in silicon before committing to mask charges. Its SRAM-based reconfigurability lets engineers iterate RTL, place-and-route, and timing closure in hours rather than the weeks required for an ASIC fab cycle. Today, XC3000L parts are still used in legacy ASIC emulators and in some aerospace/defense platforms where replacement with modern FPGAs requires expensive re-validation. Engineers should note that the 3.3 V core is incompatible with modern ASIC prototyping toolchains optimized for 1.8 V / 1.0 V parts.
Recommended
Test and Measurement Instrumentation
The XC3090L-7TQG176C is well suited for custom digital stimulus, pattern generation, and protocol-analyzer designs in bench-top and rack-mount test equipment. Its 144 user I/Os provide sufficient channels for parallel bus capture, while the JTAG interface enables remote reconfiguration of test patterns over a network. Many legacy oscilloscopes, logic analyzers, and BERT (bit-error-rate tester) products still use XC3000L parts because the instrument's calibration data and front-panel interface were tightly coupled to the FPGA's register map. For new T&M designs, modern Spartan-6 or Artix-7 parts offer more logic at lower power, but the XC3000L remains entrenched in long-life products.
Recommended
Aerospace and Defense Legacy Avionics
The XC3090L-7TQG176C is qualified in many long-life aerospace platforms (flight-control units, mission computers, and cockpit displays) where DO-254 certification prevents arbitrary part substitution. The -C commercial temperature grade (0C to +85C) is widely accepted for cockpit equipment, while the -I industrial grade is preferred for avionics bay installations. Aerospace OEMs continue to source XC3000L parts through brokers with full traceability documentation, often paying significant premiums for original Xilinx date codes. Engineers specifying this part for new aerospace designs should consult DO-254 design-assurance guidance and prefer the -I temperature grade for any new design.
Recommended
Recommended Products Summary
Engineering reference data for XC3090L-7TQG176C β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | XC3090L-6TQG176C | XC3090L-6TQG176I | XC3090L-7TQ176C | XC3090L-7TQ176I |
|---|---|---|---|---|---|
| Brand | Xilinx | Xilinx | Xilinx | Xilinx | Xilinx |
| Package | TQG176 (176-pin TQFP) | TQG176 - same | TQG176 - same | TQ176 (PQFP variant) - same family | TQ176 (PQFP variant) - same family |
| Family | XC3000L (low-voltage) | XC3000L - same | XC3000L - same | XC3000L - same | XC3000L - same |
| Speed Grade | -7 (approximately 1.3 ns logic delay) | -6 (approximately 1.5 ns) | -6 (approximately 1.5 ns) | -7 (1.3 ns) - same | -7 (1.3 ns) - same |
| Temperature Grade | C (Commercial 0C to +85C) | C (Commercial) | I (Industrial -40C to +100C) | C (Commercial) | I (Industrial) |
| Logic Cells (CLBs) | 100 CLBs / 5,000 gates | 100 CLBs - same | 100 CLBs - same | 100 CLBs - same | 100 CLBs - same |
| User I/O Count | 144 (TQG176) | 144 - same | 144 - same | 144 (TQ176) | 144 (TQ176) |
| Core Voltage | 3.3 V (3.0 to 3.6 V) | 3.3 V - same | 3.3 V - same | 3.3 V - same | 3.3 V - same |
| Configuration Memory | SRAM (volatile, requires PROM) | SRAM - same | SRAM - same | SRAM - same | SRAM - same |
| Lifecycle Status | Obsolete (Last-time-buy cycle complete) | Obsolete | Obsolete | Obsolete | Obsolete |
Key Differentiators
- Faster -7 speed grade for higher clock rates (vs XC3090L-6TQG176C)
- Commercial temperature grade for cost-sensitive applications (vs XC3090L-6TQG176I)
- TQFP package variant with thin profile (vs XC3090L-7TQ176C)
Design Notes
The XC3090L-7TQG176C requires a stable 3.3 V (3.0-3.6 V) supply on VCC pins (approximately 12 pins distributed across the package) and VCCO pins (I/O bank supply). Decoupling: place 0.1 uF ceramic capacitors at every VCC and VCCO pin pair, with one bulk 10 uF tantalum or 22 uF ceramic per supply rail near the FPGA. Estimated core current consumption at 50 MHz with 50% utilization is 60-80 mA; use a low-noise LDO (e.g., TI TPS7A4533) to feed the core supply. The 3.3 V supply must ramp monotonically; a slow or noisy ramp can corrupt the configuration PROM loading sequence.
The TQG176 package is a 1.4 mm-thin TQFP with 0.5 mm pitch leads. Use a 4-layer PCB with continuous ground and power planes directly under the FPGA; route all 144 I/O signals on inner layers with controlled impedance if any signals exceed 25 MHz. Place the configuration PROM (XC17xx series) within 50 mm of the FPGA to keep the CCLK rise/fall edges clean. Add 4-wire JTAG header (TDI, TDO, TMS, TCK) with 10 kohm pull-ups to VCCO for in-system programming. Ensure the DONE pin has a 4.7 kohm pull-up to VCCO for proper configuration-complete indication.
Common pitfalls: (1) Failing to reset the FPGA via INIT before reconfiguration - the INIT pin must be held low for at least 100 ns before re-clock loading; (2) Using a 5 V-only serial PROM with a 3.3 V XC3000L part - the PROM must be 3.3 V-compatible (XC17xxD or XC17xxE series); (3) Mixing LVTTL and LVCMOS I/O standards within the same VCCO bank - all I/Os in a single bank must use the same standard per XC3000L family rules; (4) Forgetting the decoupling capacitors on the VCCO pins adjacent to switching I/O groups - high-drive pins (24 mA sink) can inject noise into the supply; (5) Connecting a 5 V signal directly to a 3.3 V I/O pin without level shifting - 5 V tolerance is NOT specified on XC3000L parts. Use an external resistor divider or level shifter.
The XC3000L family does not publish a theta_JA for the TQG176 package, but typical estimates for a 176-pin TQFP at still air are 35-45 C/W. Estimated: at 50 MHz with 70% utilization and 3.3 V supply, the device draws approximately 100 mA, dissipating 0.33 W, yielding a junction temperature rise of approximately 12-15 C above ambient - well within the 0C to +85C commercial rating. For continuous 24/7 operation in an enclosed industrial cabinet, add a small copper heatsink or thermal via array to keep Tj below 70 C. Note: the obsolete lifecycle status means thermal data from the original datasheet family specification should be re-verified on each lot, since die revisions may vary.
Compliance Information
The XC3090L-7TQG176C is an obsolete Xilinx part manufactured in the 1990s. RoHS, REACH, lead-free, and halogen-free compliance data are not consistently tracked in the Xilinx product database for legacy parts. For new aerospace or medical designs requiring compliance certification, request a C of C and material declaration from the broker before procurement.
