Philips 74HCT243
The 74HC/HCT243 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. They are designed for 4-line asynchronous 2-way data communications between data buses.| Part No. | 74HCT243 |
|---|---|
| Datasheet | 74HCT243 Download |
| Manufacturer |  Philips |
| Description | Quad bus transceiver |
| Buy | Stock & Price |
FEATURES
● Non-inverting 3-state outputs● 2-way asynchronous data bus communication
● Output capability: bus driver
● ICC category: MSI
GENERAL DESCRIPTION
7A. 74HC/HCT243 The 74HC/HCT243 are quad bus transceivers featuring non-inverting 3-state bus compatible outputs in both send and receive directions. The output enable inputs (OEA and OEB) can be used to isolate the buses. The “243” is similar to the “242” but has non-inverting (true) outputs. QUICK REFERENCE DATA GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns TYPICAL SYMBOL tPHL/ tPLH PARAMETER propagation delay An to Bn; Bn to An input capacitance input/output capacitance power dissipation capacitance per transceiver notes 1 and 2 CONDITIONS HC CL = 15 pF; VCC = 5 V 6 HCT 11 ns UNIT CI CI/O CPD Notes 3.5 10 26 3.5 10 34 pF pF pF 1. CPD is used to determine the dynamic power dissipation (PD in µW): PD = CPD × VCC2 × fi + ∑ (CL × VCC2 × fo) where: fi = input frequency in MHz fo = output frequency in MHz ∑ (CL × VCC2 × fo) = sum of outputs CL = output load capacitance in pF VCC = supply voltage in V 2.
