M54HC137D1 数据手册 ( 数据表 ) - STMicroelectronics

DESCRIPTION
The M54HC137 is an high speed CMOS 3 TO 8 LINE DECODER/LATCH (INVERTING) fabricated with silicon gate C2MOS technology.
This device is a 3 to 8 line decoder with latches on the three address inputs. When GL goes from low to high, the addresses present at the select inputs (A, B, and C) is stored in the latches. As long as GL remains high no address changes will be recognized. Output enable pins G1 and G2, control the state of the outputs independently of the select or latch-enable inputs. All the outputs are high unless G1 is high and G2 is low. The 54HC137 is ideally suited for the implementation of glitch-free decoders in stored-address application in bus oriented systems.
All inputs are equipped with protection circuits against static discharge and transient excess voltage.

■ HIGH SPEED: tPD =18ns (TYP.) at VCC = 6V
■ LOW POWER DISSIPATION: ICC = 2µA (MAX.) at TA=25°C
■ HIGH NOISE IMMUNITY: VNIH = VNIL = 28% VCC (MIN.)
■ SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 4mA (MIN)
■ BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL
■ WIDE OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V
■ PIN AND FUNCTION COMPATIBLE WITH 54 SERIES 137
■ SPACE GRADE-1: ESA SCC QUALIFIED
■ 50 krad QUALIFIED, 100 krad AVAILABLE ON REQUEST
■ NO SEL UNDER HIGH LET HEAVY IONS IRRADIATION
■ DEVICE FULLY COMPLIANT WITH SCC-9205-013