74LS39   데이터시트

Fairchild Semiconductor

Dual 4-Bit Decade Counter

Motorola => Freescale

DUAL DECADE COUNTER; DUAL 4-STAGE BINARY COUNTER LOW POWER SCHOTTKY

Motorola => Freescale

DUAL DECADE COUNTER; DUAL 4-STAGE BINARY COUNTER LOW POWER SCHOTTKY

Fairchild Semiconductor

Dual 4-Bit Binary Counter

Motorola => Freescale

4-bit shift register with 3-state outputs