TC74ACT540,541P/F/FT
TOSHIBA CMOS Digital Integrated Circuit
Silicon Monolithic
TC74ACT540P,TC74ACT540F,TC74ACT540FT
TC74ACT541P,TC74ACT541F,TC74ACT541FT
Octal Bus Buffer
TC74ACT540P/F/FT
TC74ACT541P/F/FT
Inverting, 3-State
Outputs
Non-Inverting,
3-State Outputs
The TC74ACT540/TC74ACT541 are advanced high speed
CMOS OCTAL BUS BUFFERs fabricated with silicon gate and
double-layer metal wiring C2MOS technology.
They achieve the high speed operation similar to equivalent
Bipolar Schottky TTL while maintaining the CMOS low power
dissipation.
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.
The TC74ACT540 is an inverting type, and the TC74ACT541 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.
TC74ACT540P, TC74ACT541P
TC74ACT540F, TC74ACT541F
TC74ACT540FT, TC74ACT541FT
Features
•
High speed: tpd = 4.3 ns (typ.) at VCC = 5 V
•
Low power dissipation: ICC = 8 μA (max) at Ta = 25°C
•
Compatible with TTL outputs
: VIL = 0.8 V (max) VIH = 2.0 V (min)
•
•
Symmetrical output impedance
: |IOH| = IOL = 24 mA (min)
Capability of driving 50 Ω transmission lines.
Balanced propagation delays: tpLH ∼ tpHL
−
•
Pin and function compatible with 74F540/541
Weight
DIP20-P-300-2.54A
SOP20-P-300-1.27A
TSSOP20-P-0044-0.65A
1
: 1.30 g (typ.)
: 0.22 g (typ.)
: 0.08 g (typ.)
2007-10-01
