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74HC4015D
Dual 4-bit serial-in/parallel-out shift register
Philips Semiconductors Product specification
Dual 4-bit serial-in/parallel-out shift
register 74HC/HCT4015
FEATURES Output capability: standard ICC category: MSI
GENERAL DESCRIPTIONThe 74HC/HCT4015 are high-speed Si-gate CMOS
devices and are pin compatible with the “4015” of the
“4000B” series. They are specified in compliance with
JEDEC standard no. 7A.
The 74HC/HCT4015 are dual edge-triggered 4-bit static
shift registers (serial-to-parallel converters). Each shift
register has a serial data input (1D and 2D), a clock input
(1CP and 2CP), four fully buffered parallel outputs (1Q0 to
1Q3 and 2Q0 to 2Q3) and an overriding asynchronous
master reset (1MR and 2MR). Information present on nD
is shifted to the first register position, and all data in the
register is shifted one position to the right on the
LOW-to-HIGH transition of nCP.
A HIGH on nMR clears the register and forces nQ0 to nQ3
to LOW, independent of nCP and nD.
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
Dual 4-bit serial-in/parallel-out shift register 74HC/HCT4015
PIN DESCRIPTION
Philips Semiconductors Product specification
Dual 4-bit serial-in/parallel-out shift register 74HC/HCT4015
FUNCTION TABLE
Notes H= HIGH voltage level= LOW voltage level= don’t care= LOW-to-HIGH clock transition= HIGH-to-LOW clock transition= number of clock pulse transitions= either HIGH or LOW
APPLICATIONS Serial-to-parallel converter Buffer stores General purpose register
Philips Semiconductors Product specification
Dual 4-bit serial-in/parallel-out shift register 74HC/HCT4015
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
Philips Semiconductors Product specification
Dual 4-bit serial-in/parallel-out shift register 74HC/HCT4015
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
