BUY HCF4011 https://www.utsource.net/itm/p/30276.html
DECADE UP-DOWN COUNTER/DECODER/LATCH/DRIVER
Description: The HCF4011 is a quad 2-input NAND gate integrated circuit.
Features:
Low power consumption
High noise immunity
High speed operation
Low power Schottky TTL compatible
Outputs source/sink 24 mA
Wide supply voltage range
Low input current
High noise immunity
Low input current
High speed operation
Low power Schottky TTL compatible
Outputs source/sink 24 mA
Wide supply voltage range
Applications:
Logic gates
Flip-flops
Counters
Data selectors/multiplexers
Decoders/demultiplexers
Address decoding
Bus drivers
Signal routing
(For reference only)