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Texas Instruments 54F64FMQB — Discrete Semiconductors

54F64FMQB AND-OR-INVERT Gate, 11-Input, 14-CFlatPack

MPN54F64FMQB
End of Life

54F series AND-OR-INVERT gate, 11 inputs (4, 2, 3, 2), single circuit, single-ended output, 4.5V~5.5V supply, -55°C to 125°C, 14-CFlatPack, surface mount, Bulk package.

$2.94Ref. price · indicative, final on quote
Packaging14-CFlatPack
RoHSRoHS non-compliant
Series54F
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

54F64FMQB specifications
ParameterValue
Series54F
Logic typeAND/OR/INVERT Gate
Output typeSingle-Ended
MountingSurface Mount
Supply voltage4.5V ~ 5.5V
Current - output high, low20mA, 1mA
I/O channels11 Input (4, 2, 3, 2)
Operating temperature-55°C ~ 125°C
PackageBulk
Case14-CFlatPack
Number of circuits1
Schmitt trigger inputNo

Product details

Note that it is RoHS non-compliant — the hermetic ceramic package uses lead in the solder seal and termination finish. This part is exempt from RoHS for military/aerospace applications under the defense exemption, but it cannot be used in EU commercial/consumer products without a RoHS waiver.

Integration note: output drive and fan-out

The asymmetric output drive — 20mA source, 1mA sink — is typical of bipolar TTL logic. When driving CMOS inputs with high-impedance gates, the 1mA sink is plenty. But if the load is another bipolar TTL gate (input low current ~1.6mA per load), the 1mA sink limits fan-out to a single standard TTL load. Schmitt trigger input is not present (listed as No), so slow edges on the input signals need external hysteresis or a Schmidt-trigger gate upstream.

Frequently asked questions

Is 54F64FMQB RoHS compliant?

No, the 54F64FMQB is RoHS non-compliant. The hermetic ceramic package uses lead-based solder seal and termination finish, typical for military-grade hermetic parts.