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M54HCT27

ST Microelectronics
Part Number M54HCT27
Manufacturer ST Microelectronics
Description TRIPLE 3-INPUT NOR GATE
Published Apr 26, 2005
Detailed Description M54HCT27 M74HCT27 TRIPLE 3-INPUT NOR GATE . . . . . . . HIGH SPEED tPD = 9 ns (TYP.) AT VCC = 5 V LOW POWER DISSIPATIO...
Datasheet PDF File M54HCT27 PDF File

M54HCT27
M54HCT27

Overview
M54HCT27 M74HCT27 TRIPLE 3-INPUT NOR GATE .
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HIGH SPEED tPD = 9 ns (TYP.
) AT VCC = 5 V LOW POWER DISSIPATION ICC = 1 µA (MAX.
) AT TA = 25 °C COMPATIBLE WITH TTL OUTPUTS VIH = 2V (MIN.
) VIL = 0.
8V (MAX) OUTPUT DRIVE CAPABILITY 10 LSTTL LOADS SYMMETRICAL OUTPUT IMPEDANCE IOH = IOL = 4 mA (MIN.
) BALANCED PROPAGATION DELAYS tPLH = tPHL PIN AND FUNCTION COMPATIBLE WITH 54/74LS27 B1R (Plastic Package) F1R (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) DESCRIPTION The M54/74HCT27 is a high speed CMOS TRIPLE 3-INPUT NOR GATE fabricated in silicon gate C2MOS technology.
It has the same high speed performance of LSTTL combined with true CMOS low power consumption.
The internal circuit is composed of 3 stages including buffered output, which gives high noise immunity and a stable output.
All inputs are equipped with protection circuits against static discharge and transient excess voltage.
This integrated circuit has input and output characteristics that are fully compatible with 54/74 LSTTL logic families.
M54/74HCT devices are designed to directly interface HSC2MOS systems with TTL and NMOS components.
They are also plug in replacements for LSTTL devices giving a reduction of power consumption.
INPUT AND OUTPUT EQUIVALENT CIRCUIT ORDER CODES : M54HCT27F1R M74HCT27M1R M74HCT27B1R M74HCT27C1R PIN CONNECTIONS (top view) NC = No Internal Connection February 1993 1/9 M54/M74HCT27 TRUTH TABLE A L H X X B L X H X C L X X H Y H L L L IEC Logic Symbol PIN DESCRIPTION PIN No 1, 3, 9 2, 4, 10 13, 5, 11 12, 6, 8 7 14 SYMBOL 1A to 3A 1B to 3B 1C to 3C 1Y to 3Y GND VCC NAME AND FUNCTION Data Inputs Data Inputs Data Inputs Data Outputs Ground (0V) Positive Supply Voltage LOGIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol VCC VI VO IIK IOK ICC IO or IGND PD Tstg TL Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Source Sink Current Per Output Pin DC VCC or Ground Current Power Dissipation Storage T...


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