74HC595BQ ,8-bit serial-in, serial or parallel-out shift register with output latches; 3-stateFEATURES DESCRIPTION• 8-bit serial input The 74HC/HCT595 are high-speed Si-gate CMOS devicesand are ..
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74HC595BQ
8-bit serial-in, serial or parallel-out shift register with output latches; 3-state
Philips Semiconductors Product specification
8-bit serial-in, serial or parallel-out shift
register with output latches; 3-state 74HC595; 74HCT595
FEATURES 8-bit serial input 8-bit serial or parallel output Storage register with 3-state outputs Shift register with direct clear 100 MHz (typical) shift out frequency ESD protection:
HBM EIA/JESD22-A114-A exceeds 2000V
MM EIA/JESD22-A115-A exceeds 200V.
APPLICATIONS Serial-to-parallel data conversion Remote control holding register.
DESCRIPTIONThe 74HC/HCT595 are high-speed Si-gate CMOSdevices
and are pin compatible with low power Schottky TTL
(LSTTL). They are specified in compliance with JEDEC
standard no. 7A.
The 74HC/HCT595isan 8-stage serial shift register witha
storage register and 3-state outputs. The shift register and
storage register have separate clocks.
Data is shifted on the positive-going transitions of the
SH_CP input. The data in each register is transferred to
the storage register on a positive-going transition of the
ST_CP input. If both clocks are connected together, the
shift register will always be one clock pulse ahead of the
storage register.
The shift register has a serial input (DS) and a serial
standard output (Q7’) for cascading. It is also provided
with asynchronous reset (active LOW) for all 8 shift
register stages. The storage register has8 parallel 3-state
bus driver outputs. Datain the storage register appearsat
the output whenever the output enable input (OE)is LOW.
QUICK REFERENCE DATAGND= 0 V; Tamb =25 °C; tr =tf= 6 ns.
Notes CPD is used to determine the dynamic power dissipation (PDin μW). =CPD× VCC2×fi× N+ Σ(CL× VCC2×fo) where:= input frequency in MHz;= output frequency in MHz;= output load capacitance in pF;
VCC= supply voltage in Volts;= total load switching outputs;
Σ(CL× VCC2×fo)= sum of the outputs. For 74HC595 the condition is VI= GNDto VCC.
For 74HCT595 the condition is VI= GNDto VCC− 1.5V.
Philips Semiconductors Product specification
8-bit serial-in, serial or parallel-out shift
register with output latches; 3-state 74HC595; 74HCT595
FUNCTION TABLESee note1.
Note H= HIGH voltage level;= LOW voltage level;= LOW-to-HIGH transition;= HIGH-to-LOW transition;= high-impedance OFF-state;
n.c.= no change;= don’t care.
ORDERING INFORMATION
Philips Semiconductors Product specification
8-bit serial-in, serial or parallel-out shift
register with output latches; 3-state 74HC595; 74HCT595
PINNING
Philips Semiconductors Product specification
8-bit serial-in, serial or parallel-out shift
register with output latches; 3-state 74HC595; 74HCT595
Philips Semiconductors Product specification
8-bit serial-in, serial or parallel-out shift
register with output latches; 3-state 74HC595; 74HCT595
Philips Semiconductors Product specification
8-bit serial-in, serial or parallel-out shift
register with output latches; 3-state 74HC595; 74HCT595
Philips Semiconductors Product specification
8-bit serial-in, serial or parallel-out shift
register with output latches; 3-state 74HC595; 74HCT595
RECOMMENDED OPERATING CONDITIONS
LIMITED VALUES accordance with the Absolute Maximum Rating System (IEC 60134); voltages are referencedto GND (ground=0 V).
Note For DIP16 packages: above 70 °C derate linearly with 12 mW/K.
For SO16 packages: above 70 °C derate linearly with 8 mW/K.
For SSOP16 packages: above 60 °C derate linearly with 5.5 mW/K.
For TSSOP16 packages: above 60 °C derate linearly with 5.5 mW/K.
For DHVQFN16 packages: above 60 °C derate linearly with 4.5 mW/K.
Philips Semiconductors Product specification
8-bit serial-in, serial or parallel-out shift
register with output latches; 3-state 74HC595; 74HCT595
CHARACTERISTICS
Type 74HCAt recommended operating conditions; voltages are referenced to GND (ground=0V).
Philips Semiconductors Product specification
8-bit serial-in, serial or parallel-out shift
register with output latches; 3-state 74HC595; 74HCT595
Note All typical values are measured at Tamb =25 °C.
Philips Semiconductors Product specification
8-bit serial-in, serial or parallel-out shift
register with output latches; 3-state 74HC595; 74HCT595
Type 74HCTAt recommended operating conditions; voltages are referenced to GND (ground=0 V); tr =tf=6 ns; CL =50pF.
Philips Semiconductors Product specification
8-bit serial-in, serial or parallel-out shift
register with output latches; 3-state 74HC595; 74HCT595
Notes All typical values are measured at Tamb =25 °C. The valueof additional quiescent supply current (ΔICC)fora unit loadof1is given here.To determine ΔICC per input,
multiply this value by the unit load coefficient per input pin: pin DS: 0.25 pins MR, SH_CP, ST_CP and OE: 1.50.
Philips Semiconductors Product specification
8-bit serial-in, serial or parallel-out shift
register with output latches; 3-state 74HC595; 74HCT595
CHARACTERISTICS
Family 74HCGND=0 V; tr =tf=6 ns; CL =50pF.
Philips Semiconductors Product specification
8-bit serial-in, serial or parallel-out shift
register with output latches; 3-state 74HC595; 74HCT595
