74VHCT240A

Features:

 High Speed: t_PD = 5.6 ns (typ) at V_CC = 5V
 Power down protection is provided on inputs and outputs
 Low power dissipation: ICC = 4 A (max) @ T_A = 25°C
 Pin and function compatible with 74HCT240


Pinout




Specifications

Supply Voltage (V_CC) ...........................................................-0.5V to +7.0V
DC Input Voltage (V_IN)......................................................... -0.5V to +7.0V
DC Output Voltage (V_OUT)
(Note 3)....................................................................... -0.5V to VCC + 0.5V
(Note 4)................................................................................-0.5V to +7.0V
Input Diode Current (I_IK).................................................................-20 mA
Output Diode Current (I_OK) (Note 5).............................................. ±20 mA
DC Output Current (I_OUT) ...............................................................±25 mA
DC VCC/GND Current (I_CC)............................................................. ±75 mA
Storage Temperature (T_STG)............................................-65°C to +150°C
Lead Temperature (T_L)
(Soldering, 10 seconds) ...................................................................260°C


Description

The 74VHCT240A is an advanced high speed CMOS octal bus transceiver fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. The VHCT240A is an inverting 3-STATE buffer having two active-LOW output enables. This device is designed to be used as 3-STATE memory address drivers, clock drivers, and bus oriented transmitter/receivers. Protection circuits ensure that 0V to 7V can be applied to the input and output (Note 1) pins without regard to the supply voltage. These circuits prevent device destruction due to mismatched supply and input/output voltages. This 74VHCT240A can be used to interface 5V to 3V systems and two supply systems such as battery back up.