HIGH SPEED: tPD = 4ns (TYP.) at VCC = 5V LOW POWER DISSIPATION: ICC at TA=25°C HIGH NOISE IMMUNITY: VNIH = V NIL 28 % VCC (MIN.) 50 TRANSMISSION LINE DRIVING CAPABILITY SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 24mA (MIN) BALANCED PROPAGATION DELAYS: tPLH tPHL OPERATING VOLTAGE RANGE: VCC (OPR) to 6V PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 158 IMPROVED LATCH-UP IMMUNITY

DESCRIPTION The is an advanced high-speed CMOS QUAD 2-CHANNEL MULTIPLEXER (INVERTING) fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS tecnology. It consists of four 2-input digital multiplexer with common select and strobe inputs. is an inverting

multiplexer. When the STROBE input is held high selection of data is inhibit and all the outputs become high. The SELECT decoding determines whether the or B inputs get routed to their corresponding Y outputs. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.

PIN No SYMBOL SELECT to 4Y STROBE GND VCC NAME AND FUNCTION Common Data Select Inputs Data Inputs From Source A Data Inputs From Source B Multiplexer Outputs Strobe Input Ground (0V) Positive Supply Voltage

Symbol VCC VI VO IIK IOK IO Tstg TL Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Current Storage Temperature Lead Temperature (10 sec) Parameter Value -0.5 to VCC -0.5 to VCC +150 300 Unit mA °C

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied.

Symbol VCC VI VO Top dt/dv Supply Voltage Input Voltage Output Voltage Operating Temperature Input Rise and Fall Time VCC or 5.5V (note 1) Parameter Value 0 to VCC 0 to VCC 125 8 Unit V °C ns/V