NXP Semiconductors.
Hex buffer/line driver; 3-state
Philips Electronics
Dual 4-bit binary ripple counter
NXP Semiconductors.
8-input NAND gate
Philips Electronics
Dual decade ripple counter
Philips Electronics
Hex buffer/line driver; 3-state
System Logic Semiconductor
Hex 3-State Noninverting Buffer with Separate 2-Bit and 4-Bit Sections
NXP Semiconductors.
Octal D-type flip-flop with data enable; positive-edge trigger