74HCT540D,74HCT541D CMOS Digital Integrated Circuits Silicon Monolithic 74HCT540D,74HCT541D 1. Functional Description Octal Bus Buffer 74HCT540D: INVERTING, 3-STATE OUTPUTS 74HCT541D: NON-INVERTING, 3-STATE OUTPUTS 2. General The 74HCT540D/74HCT541D are high speed CMOS OCTAL BUS BUFFERs fabricated with silicon gate C2MOS technology. These devices may be used as a level converter for interfacing TTL or NMOS to High Speed CMOS. The inputs are compatible with TTL, NMOS and CMOS output voltage levels. They achive the high speed operation similar to equivalent LSTTL while maintaing the CMOS low power dissipation. The 74HCT540D is an inverting type, and the 74HCT541D is a non-inverting type. When either G1 or G2 are high, the terminal outputs are in the high-impedance state. All inputs are equipped with protection circuits against static discharge or transient excess voltage. 3. Features (1) Wide operating temperature range: T = -40 to 125 (Note 1) opr (2) High speed: t = 9 ns (typ.) at V = 5.5 V pd CC (3) Low power dissipation: I = 4.0 A (max) at T = 25 CC a (4) Compatible with TTL outputs: V = 0.8 V(max) IL V = 2.0 V(min) IH (5) Wide interfacing ability: LSTTL, NMOS, CMOS (6) Balanced propagation delays: t t PLH PHL Note 1: Operating Range spec of T = -40 to 125 is applicable only for the products which manufactured after opr July 2020. 4. Packaging SOIC20 Start of commercial production 2020-07 2016-2020 2020-11-17 1 Toshiba Electronic Devices & Storage Corporation Rev.3.074HCT540D,74HCT541D 5. Pin Assignment 74HCT540D 74HCT541D 6. Marking 74HCT540D 74HCT541D 7. IEC Logic Symbol 74HCT540D 74HCT541D 2016-2020 2020-11-17 2 Toshiba Electronic Devices & Storage Corporation Rev.3.0