74HC42N ,BCD to decimal decoder (1-of-10)INTEGRATED CIRCUITSDATA SHEETFor a complete data sheet, please also download:• The IC06 74HC/HCT/HC ..
74HC42N ,BCD to decimal decoder (1-of-10)GENERAL DESCRIPTIONinput can also be used as the data input in an 8-outputThe 74HC/HCT42 are high-s ..
74HC42N ,BCD to decimal decoder (1-of-10)FEATURES The 74HC/HCT42 decoders accept four active HIGH BCDinputs and provide 10 mutually exclusiv ..
74HC4316D ,Quad bilateral switchesINTEGRATED CIRCUITSDATA SHEETFor a complete data sheet, please also download:• The IC06 74HC/HCT/HC ..
74HC4316DB ,Quad bilateral switchesFEATURES The 74HC/HCT4316 have four independent analogswitches. Each switch has two input/output te ..
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74HC42N
BCD to decimal decoder (1-of-10)
Philips Semiconductors Product specification
BCD to decimal decoder (1-of-10) 74HC/HCT42
FEATURES Mutually exclusive outputs 1-of-8 demultiplexing capability Outputs disabled for input codes above nine Output capability: standard ICC category: MSI
GENERAL DESCRIPTIONThe 74HC/HCT42 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. 7A.
The 74HC/HCT42 decoders accept four active HIGH BCD
inputs and provide 10 mutually exclusive active LOW
outputs. The active LOW outputs facilitate addressing
other MSI circuits with active LOW input enables.
The logic design of the “42” ensures that all outputs are
HIGH when binary codes greater than nine are applied to
the inputs.
The most significant input (A3) produces an useful inhibit
function when the “42” is used as a 1-of-8 decoder. The A3
input can also be used as the data input in an 8-output
demultiplexer application.
QUICK REFERENCE DATAGND= 0 V; Tamb =25 °C; tr =tf= 6 ns
Notes CPD is used to determine the dynamic power dissipation (PD in μW): =CPD × VCC2× fi +∑ (CL× VCC2 × fo) where:= input frequency in MHz= output frequency in MHz
∑ (CL × VCC2 × fo)= sum of outputs= output load capacitance in pF
VCC= supply voltage in V For HC the condition is VI= GND to VCC
For HCT the condition is VI= GND to VCC − 1.5 V
ORDERING INFORMATIONSee “74HC/HCT/HCU/HCMOS Logic Package Information”.
Philips Semiconductors Product specification
BCD to decimal decoder (1-of-10) 74HC/HCT42
PIN DESCRIPTION
Philips Semiconductors Product specification
BCD to decimal decoder (1-of-10) 74HC/HCT42
FUNCTION TABLE
Note H= HIGH voltage level= LOW voltage level
Philips Semiconductors Product specification
BCD to decimal decoder (1-of-10) 74HC/HCT42
DC CHARACTERISTICS FOR 74HCFor the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
ICC category: MSI
AC CHARACTERISTICS FOR 74HCGND= 0 V; tr =tf= 6 ns; CL= 50 pF
DC CHARACTERISTICS FOR 74HCTFor the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
ICC category: MSI
Note to HCT typesThe value of additional quiescent supply current (ΔICC) for a unit load of 1 is given in the family specifications.
To determine ΔICC per input, multiply this value by the unit load coefficient shown in the table below.
AC CHARACTERISTICS FOR 74HCTGND= 0 V; tr =tf= 6 ns; CL= 50 pF
Philips Semiconductors Product specification
BCD to decimal decoder (1-of-10) 74HC/HCT42
AC WAVEFORMS
PACKAGE OUTLINESSee “74HC/HCT/HCU/HCMOS Logic Package Outlines”.
