Active 4000B XOR in a 14-SOIC footprint
The CD4070BM96 is a Texas Instruments 4000B-series CMOS quad 2-input XOR gate in a 14-SOIC package. It integrates four independent exclusive-OR gates on a single die, each with two inputs, and is rated for a 3V to 18V supply range and -55°C to 125°C operating temperature.
What the key ratings mean for your bench or BOM
Quiescent current is 1 µA maximum — the CMOS construction draws negligible supply current when the outputs are static, which matters for battery-powered or power-sensitive logic sections where a 74HC part might pull an order of magnitude more. Output drive is 3.4 mA source and 3.4 mA sink at rated supply — this is typical of the 4000B family and drives one or two standard CMOS loads directly, but it will not fan out to a TTL input without a buffer or pull-up. Propagation delay is 100 ns maximum at 15V supply into a 50 pF load — the 4000B series is slower than the 74HC or 74AC families, so this part is suited for control and status signals where timing margins are generous, not for a high-speed data path. Input logic levels are supply-ratiometric: low is 1.5V to 4V, high is 3.5V to 11V across the 3-18V range — the thresholds track VDD, so the gate works with a 3.3V microcontroller output at the low end and a 12V sensor signal at the high end without a level translator.
Where this 4000B XOR gate fits in a system
The 4000B series is a standard CMOS logic family used in industrial control, instrumentation, and mixed-voltage systems where the wide supply range (3-18V) and low quiescent current are more important than raw speed. A quad XOR serves as a digital comparator, parity generator, or controlled inverter — the four gates share the same VDD and GND pins, so the 14-SOIC footprint replaces four discrete XOR packages on the board.
Sourcing posture and lifecycle reality
Texas Instruments lists the CD4070BM96 as Active with RoHS3 compliance — no NRND or EOL flag. The part is quoted to order against the BOM quantity through independent distribution; availability and current pricing are confirmed at RFQ time.