Single-gate logic devices target automotive applications including infotainment and ADAS

04-11-2020 | Diodes Inc | Automotive Technologies

Diodes Incorporated has expanded its portfolio of automotive-compliant logic devices. The 74AHC1GxxQ (standard CMOS) and 74AHCT1GxxQ (TTL compatible) devices are AEC-Q100 grade 1 qualified, manufactured in IATF 16949 certified facilities, and are PPAP capable.


Single-gate logic is employed extensively in automotive systems, wherever a signal must to be gated, buffered or inverted. The new devices provide two-input single-gate solutions for AND, OR, XOR, NAND, and NOR gates as well as inverters and buffers. The inverters are offered with and without Schmitt trigger inputs while the buffers provide three-state outputs with active-high or active-low output enable.


The CMOS compatible 74AHC1GxxQ devices function from a supply voltage of between 2V and 5.5V, while the TTL compatible 7A4HCT1GxxQ devices operate from a supply voltage of between 4.5V and 5.5V. Propagation delays are typically between 4.5ns for the CMOS Inverter (74AHC1G04QSE-7) and 5.9ns for the TTL compatible Schmitt Trigger Inverter (74AHCT1G14QSE-7).


The devices join the company’s growing portfolio of automotive '1G' logic devices – incorporating its 74LVC1GxxQ family – making logic products the largest category of AEC-Q100 qualified products available from them. The company, for high reliability, has determined to utilise die dedicated to automotive-compliant devices, removing circuitry under the bond pad and using gold bond wires.


The families are available now in both SOT25 and SOT353 packages.

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