74HC573D ,Octal D-type transparent latch; 3-stateINTEGRATED CIRCUITSDATA SHEETFor a complete data sheet, please also download:• The IC06 74HC/HCT/HC ..
74HC573DB ,74HC/HCT573; Octal D-type transparent latch; 3-stateINTEGRATED CIRCUITSDATA SHEETFor a complete data sheet, please also download:• The IC06 74HC/HCT/HC ..
74HC573DB ,74HC/HCT573; Octal D-type transparent latch; 3-stateapplications. A latch enable (LE) input and an output enable (OE) input are common to all latches.W ..
74HC573N ,Octal D-type transparent latch; 3-stateINTEGRATED CIRCUITSDATA SHEETFor a complete data sheet, please also download:• The IC06 74HC/HCT/HC ..
74HC573PW ,74HC/HCT573; Octal D-type transparent latch; 3-stateINTEGRATED CIRCUITSDATA SHEETFor a complete data sheet, please also download:• The IC06 74HC/HCT/HC ..
74HC574D ,74HC/HCT574; Octal D-type flip-flop; positive edge-trigger; 3-stateLogic diagram74HC_HCT574 All information provided in this document is subject to legal disclaimers. ..
74LVX86 ,Low Voltage Quad 2-Input Exclusive-OR Gateapplications5V systems to 3V systems. Guaranteed simultaneous switching noise level anddynamic thre ..
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74HC573BQ-74HC573D-74HC573DB-74HC573N-74HC573PW-74HCT573DB-74HCT573N-74HCT573PW
74HC/HCT573; Octal D-type transparent latch; 3-state
Philips Semiconductors Product specification
Octal D-type transparent latch; 3-state 74HC/HCT573
FEATURES Inputs and outputs on opposite
sides of package allowing easy
interface with microprocessors Useful as input or output port for
microprocessors/microcomputers 3-state non-inverting outputs for
bus oriented applications Common 3-state output enable
input Functionally identical to the “563”
and “373” Output capability: bus driver ICC category: MSI
GENERAL DESCRIPTIONThe 74HC/HCT573 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/HCT573 are octal D-type
transparent latches featuring
separate D-type inputs for each latch
and 3-state outputs for bus oriented
applications.
A latch enable (LE) input and an
output enable (OE) input are common
to all latches.
The “573” consists of eight D-type
transparent latches with 3-state true
outputs. When LE is HIGH, data at
the Dn inputs enter the latches. In this
condition the latches are transparent,
i.e. a latch output will change state
each time its corresponding D-input
changes.
When LE is LOW the latches store the
information that was present at the
D-inputs a set-up time preceding the
HIGH-to-LOW transition of LE.
When OE is LOW, the contents of the
8 latches are available at the outputs.
When OE is HIGH, the outputs go to
the high impedance OFF-state.
Operation of the OE input does not
affect the state of the latches.
The “573” is functionally identical to
the “563” and “373”, but the “563” has
inverted outputs and the “373” has a
different pin arrangement.
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; fo= 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
Octal D-type transparent latch; 3-state 74HC/HCT573
PIN DESCRIPTION
Philips Semiconductors Product specification
Octal D-type transparent latch; 3-state 74HC/HCT573
FUNCTION TABLE
Notes H= HIGH voltage level= HIGH voltage level one set-up time prior to the HIGH-to-LOW
LE transition= LOW voltage level= LOW voltage level one set-up time prior to the HIGH-to-LOW
LE transition= high impedance OFF-state
Philips Semiconductors Product specification
Octal D-type transparent latch; 3-state 74HC/HCT573
DC CHARACTERISTICS FOR 74HCFor the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: bus driver
ICC category: MSI
AC CHARACTERISTICS FOR 74HCGND= 0 V; tr =tf= 6 ns; CL= 50 pF
Philips Semiconductors Product specification
Octal D-type transparent latch; 3-state 74HC/HCT573
DC CHARACTERISTICS FOR 74HCTFor the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: bus driver
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
