M74HC237

M74HC237 3 TO 8 LINE DECODER LATCH s HIGH SPEED: tPD = 16ns (TYP.) at VCC = 6V s LOW POWER DISSIPATION: ICC = 4µA(MAX.) at TA=25°C s HIGH NOISE IMMUNITY: )VNIH = VNIL = 28 % VCC (MIN.) t(ss SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 4mA (MIN) ucs BALANCED PROPAGATION DELAYS: dtPLH ≅ tPHL ro )s WIDE OPERATING VOLTAGE RANGE: P t(sVCC (OPR) = 2V to 6V s PIN AND FUNCTION COMPATIBLE WITH lete uc74 SERIES 237 so rodDESCRIPTION b PThe M74HC237 is an high speed CMOS 3 TO 8 LINE DECODER fabricated with silicon gate - O teC2MOS technology. ) leWhen GL goes from low to high, the address t(s opresent at the select inputs (A, B, C) is stored in sthe latches. As long as GL remains high no c baddress changes will be recognized. Output u Oenable controls, G1 and G2 control the state of the d -outputs independently of the select or DIP SOP TSSOP ORDER CODES PACKAGE TUBE DIP SOP TSSOP M74HC237B1R M74HC237M1R T&R M74HC237RM13TR M74HC237TTR latch-enable inputs. All of the outputs are low unless G1 is high and G2 is low. The M74HC237 is ideally suited for the implementation of glitch-free decoders in stored-address applications in bus oriented systems. All inputs are equipped with protection circuits against static discharge and transient excess voltage. OObbssoolleettee PPrrooduct(s)PIN CONNECTION AND IEC LOGIC SYMBOLS July 2001 1/11 M74HC237 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No SYMBOL NAME AND FUNCTION 1, 2, 3 A, B, C Data Inputs 4 GL Latch Enab...