TC74VHC9541P Datasheet, PDF (1/10 Pages) Toshiba Semiconductor – Octal Universal Schmitt Buffer with 3-State Outputs

TC74VHC9541P/FT/FK
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74VHC9541P,TC74VHC9541FT,TC74VHC9541FK
Octal Universal Schmitt Buffer with 3-State Outputs
The TC74VHC9541 is an ultra-high-speed octal Schmitt buffer
fabricated using silicon-gate CMOS technology. The
TC74VHC9541 combines low power consumption of CMOS with
Schottky TTL speeds.
The outputs can be put in the high-impedance state by placing
a logic HIGH on the Enable ( G ) input. The CONT input
determines the logical inversion of data. A logic LOW on the
CONT input configures the TC74VHC9541 as an inverter; a logic
HIGH on the CONT input configures the TC74VHC9541 as a
buffer.
All the inputs have hysteresis between the positive-going and
negative-going thresholds. Thus the TC74VHC9541 is capable of
squaring up transitions of slowly changing input signals and
provides an improved noise immunity.
Additionally, all the inputs have a newly developed protection
circuit without a diode returned to V_CC. This enables the inputs
to be tolerant of up to 5 volts even when power supply is down.
The input power-down protection capability makes the
TC74VHC9541 ideal for a wide range of applications, such as
interfacing between different voltages, voltage translation from 5
V to 3 V and battery back-up circuits.
Features
• High speed: t_pd = 5.0 ns (typ.) (V_CC = 5 V)
• Low supply current: I_CC = 4 μA (max) (Ta = 25°C)
• High noise immunity: V_NIH = V_NIL = 28% V_CC (min)
• All inputs are provided with power-down protection.
• Symmetrical rise and fall delays: t_pLH ≈ t_pHL
• Wide operating voltage range: V_{CC (opr)} = 2 to 5.5 V
• Pin-compatible with TC74VHC540 and TC74VHC541
TC74VHC9541P
TC74VHC9541FT
TC74VHC9541FK
Weight
DIP20-P-300-2.54A:
1.30 g (typ.)
TSSOP20-P-0044-0.65A: 0.08 g (typ.)
VSSOP20-P-0030-0.50: 0.03 g (typ.)
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2009-02-01