SN74AHC3G99-Q1 - Triple Configurable Logic Gate | TI Automotive
MPN: SN74AHC3G99-Q1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.85 | $0.85 |
| 10 | $0.76 | $7.60 |
| 100 | $0.68 | $68.00 |
| 500 | $0.61 | $305.00 |
| 1,000 | $0.55 | $550.00 |
Drop-in alternatives for SN74AHC3G99-Q1 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:
SN74AHC3G99
β Drop-Inπ Reference alternative (not in catalog)
SN74AHC3G99QPWRQ1
β Drop-Inπ Reference alternative (not in catalog)
74AHC3G99
β Drop-Inπ Reference alternative (not in catalog)
74VHC3G99
β Drop-Inπ Reference alternative (not in catalog)
SN74LVC3G99
β Drop-Inπ Reference alternative (not in catalog)
SN74AHC3G99-Q1 Maximum Ratings & Electrical Characteristics
| Number of Gates | 3 |
| Number of Inputs per Gate | 4 |
| Number of Outputs per Gate | 1 (3-state) |
| Supply Voltage Range | 2 V to 5.5 V |
| Logic Function | Y = (A β’ /C + B β’ C) β D |
| Output Type | 3-State |
| Input Type | Schmitt-Trigger |
| Maximum Propagation Delay | 7.5 ns at 5 V |
| Maximum Output Load Capacitance | 50 pF |
| Operating Temperature Range | -40Β°C to +125Β°C |
| Package | 20-TSSOP (PW) |
| Mounting Type | Surface Mount |
| Qualification | AEC-Q100 |
| RoHS Status | Compliant |
| Output Current | [DATA_NEEDED: Output current per channel] |
SN74AHC3G99-Q1 Pin Configuration
| Pin 1 | 1A β Input A of gate 1 |
| Pin 2 | 1B β Input B of gate 1 |
| Pin 3 | 1C β Input C of gate 1 |
| Pin 4 | 1D β Input D of gate 1 |
| Pin 5 | 1Y β Output Y of gate 1 (3-state) |
| Pin 6 | 2A β Input A of gate 2 |
| Pin 7 | 2B β Input B of gate 2 |
| Pin 8 | 2C β Input C of gate 2 |
| Pin 9 | 2D β Input D of gate 2 |
| Pin 10 | GND β Ground |
| Pin 11 | 2Y β Output Y of gate 2 (3-state) |
| Pin 12 | 3A β Input A of gate 3 |
| Pin 13 | 3B β Input B of gate 3 |
| Pin 14 | 3C β Input C of gate 3 |
| Pin 15 | 3D β Input D of gate 3 |
| Pin 16 | 3Y β Output Y of gate 3 (3-state) |
| Pin 17 | OE1 β Output enable for gate 1 (active low) |
| Pin 18 | OE2 β Output enable for gate 2 (active low) |
| Pin 19 | OE3 β Output enable for gate 3 (active low) |
| Pin 20 | VCC β Power supply |
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
SN74AHC3G99-Q1 is suitable for 6 applications: Automotive Body Control Module, Infotainment System, Industrial Automation, Signal Conditioning, Portable Electronics, Test and Measurement.
Automotive Body Control Module
The SN74AHC3G99-Q1 is ideal for automotive body control modules where multiple logic functions are needed in a compact, reliable package. Its AEC-Q100 qualification and wide operating temperature range (-40Β°C to +125Β°C) ensure reliable operation in harsh automotive environments. The Schmitt-trigger inputs provide noise immunity against electrical transients common in vehicles. The 3-state outputs allow bus sharing, reducing wiring complexity. With a supply voltage range of 2V to 5.5V, it interfaces directly with both 3.3V and 5V microcontrollers, simplifying system design. The configurable nature of the gates allows designers to implement various logic functions without additional components, saving board space and cost.
Recommended
Infotainment System
In infotainment systems, the SN74AHC3G99-Q1 provides flexible logic functions for signal routing and control. Its high-speed operation (7.5ns propagation delay at 5V) supports fast data processing, while the 3-state outputs enable efficient bus multiplexing. The device operates from 2V to 5.5V, allowing direct interface with various logic families used in audio, video, and display modules. The Schmitt-trigger inputs ensure clean signal reception even with noisy power supplies. The compact 20-TSSOP package fits space-constrained PCB layouts, and the automotive qualification ensures long-term reliability in the vehicle environment.
Recommended
Industrial Automation
The SN74AHC3G99-Q1 is well-suited for industrial automation systems that require robust logic functions in noisy environments. Its Schmitt-trigger inputs reject noise from motors and relays, ensuring reliable operation. The wide supply voltage range (2V to 5.5V) allows integration with various industrial sensors and controllers. The 3-state outputs enable multiple devices to share a common bus, simplifying wiring in distributed control systems. The device's high-speed performance (7.5ns) supports real-time control loops. Its AEC-Q100 qualification, while automotive-focused, also indicates high reliability suitable for industrial applications.
Recommended
Signal Conditioning
The SN74AHC3G99-Q1 can be used for signal conditioning in mixed-signal systems. Its configurable gates can implement functions like MUX, AND, OR, and XOR to route and condition digital signals. The Schmitt-trigger inputs clean up slow or noisy signals, improving signal integrity. The 3-state outputs allow the device to be disconnected from the bus when not in use, preventing contention. With a wide operating voltage range, it can interface between different logic levels, acting as a level translator. The high-speed operation ensures minimal signal delay, making it suitable for high-frequency applications.
Recommended
Portable Electronics
In portable electronics, the SN74AHC3G99-Q1 offers low power consumption and small footprint, ideal for battery-powered devices. Its wide supply voltage range (2V to 5.5V) allows operation from single-cell batteries. The configurable gates reduce component count, saving PCB area. The Schmitt-trigger inputs provide noise immunity, ensuring stable operation in portable environments. The 3-state outputs enable power saving by disconnecting unused circuits. The device's high-speed performance supports efficient data processing, while the automotive-grade reliability ensures long battery life and durability.
Recommended
Test and Measurement
The SN74AHC3G99-Q1 is used in test and measurement equipment for flexible logic implementation. Its configurable gates allow designers to adapt the logic function without redesigning the PCB. The high-speed operation (7.5ns) enables accurate signal processing in measurement instruments. The Schmitt-trigger inputs ensure reliable triggering on noisy signals. The 3-state outputs facilitate bus sharing in multi-channel systems. The wide supply voltage range supports various logic levels used in test equipment. The automotive-grade reliability ensures consistent performance in demanding test environments.
Recommended
Recommended Products Summary
Engineering reference data for SN74AHC3G99-Q1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | SN74AHC3G99 | 74AHC3G99 | 74VHC3G99 |
|---|---|---|---|---|
| Package | 20-TSSOP (PW) | 20-TSSOP (PW) | 20-TSSOP (PW) | 20-TSSOP (PW) |
| Brand | Texas Instruments | Texas Instruments | NXP Semiconductors | onsemi |
| Supply Voltage Range | 2V to 5.5V | 2V to 5.5V | 2V to 5.5V | 2V to 5.5V |
| Propagation Delay | 7.5ns at 5V | 7.5ns at 5V | 7.5ns at 5V | 5.5ns at 5V |
| Schmitt-Trigger Inputs | Yes | Yes | Yes | Yes |
| 3-State Outputs | Yes | Yes | Yes | Yes |
| AEC-Q100 Qualified | Yes | No | No | No |
| Operating Temperature Range | -40Β°C to +125Β°C | -40Β°C to +85Β°C | -40Β°C to +125Β°C | -40Β°C to +85Β°C |
Key Differentiators
- Automotive AEC-Q100 qualification (vs SN74AHC3G99)
- Schmitt-trigger inputs on all pins (vs 74VHC3G99)
- Wide supply voltage range (vs SN74LVC3G99)
Design Notes
Place a 0.1uF decoupling capacitor as close as possible to the VCC pin (pin 20) and GND pin (pin 10) to minimize power supply noise. Use a ground plane to reduce inductance and improve noise immunity. Keep traces short to minimize parasitic capacitance, especially for high-speed signals.
Do not exceed the maximum output load capacitance of 50pF to ensure full datasheet performance. Larger loads may cause signal degradation and increased propagation delay. Also, ensure that unused inputs are tied to VCC or GND to prevent floating inputs, which can cause excessive power consumption and unpredictable behavior.
The SN74AHC3G99-Q1 is a low-power CMOS device, so thermal issues are minimal. However, in high-temperature automotive environments, ensure adequate PCB heat dissipation by providing copper pour areas around the device. The operating temperature range is -40Β°C to +125Β°C, so verify that the junction temperature stays within limits under worst-case conditions.
Compliance Information
AEC-Q100 qualified per TI product page. RoHS compliant. REACH compliance assumed based on TI's global compliance.
