INTEGRATED CIRCUITS DATA SHEET For a complete data sheet, please also download: • The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications • The IC06 74HC/HCT/HCU/HCMOS Logic Package Information • The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines 74HC/HCT573 Octal D-type transparent latch; 3-state Product specification File under Integrated Circuits, IC06 December 1990
Philips Semiconductors Product specification Octal D-type transparent latch; 3-state FEATURES GENERAL DESCRIPTION • Inputs and outputs on opposite sides of package allowing easy interface with microprocessors The 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.
Philips Semiconductors Product specification Octal D-type transparent latch; 3-state 74HC/HCT573 PIN DESCRIPTION PIN NO. SYMBOL NAME AND FUNCTION 2, 3, 4, 5, 6, 7, 8, 9 D0 to D7 data inputs 11 LE latch enable input (active HIGH) 1 OE 3-state output enable input (active LOW) 10 GND ground (0 V) 19, 18, 17, 16, 15, 14, 13, 12 Q0 to Q7 3-state latch outputs 20 VCC positive supply voltage Fig.1 Pin configuration. December 1990 Fig.2 Logic symbol. 3 Fig.3 IEC logic symbol.
Philips Semiconductors Product specification Octal D-type transparent latch; 3-state 74HC/HCT573 FUNCTION TABLE OPERATING MODES INPUTS OUTPUTS OE LE DN INTERNAL LATCHES enable and read register (transparent mode) L L H H L H L H L H latch and read register L L L L l h L H L H latch register and disable outputs H H L L l h L H Z Z Q0 to Q7 Notes 1.
Philips Semiconductors Product specification Octal D-type transparent latch; 3-state 74HC/HCT573 DC CHARACTERISTICS FOR 74HC For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”. Output capability: bus driver ICC category: MSI AC CHARACTERISTICS FOR 74HC GND = 0 V; tr = tf = 6 ns; CL = 50 pF Tamb (°C) TEST CONDITIONS 74HC SYMBOL PARAMETER −40 to +85 −40 to +125 min. min. +25 min. typ. max. max. UNIT V CC WAVEFORMS (V) max.
Philips Semiconductors Product specification Octal D-type transparent latch; 3-state 74HC/HCT573 DC CHARACTERISTICS FOR 74HCT For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”. Output capability: bus driver ICC category: MSI Note to HCT types The value of additional quiescent supply current (∆ICC) for a unit load of 1 is given in the family specifications. To determine ∆ICC per input, multiply this value by the unit load coefficient shown in the table below.
Philips Semiconductors Product specification Octal D-type transparent latch; 3-state 74HC/HCT573 AC WAVEFORMS (1) HC : VM = 50%; VI = GND to VCC. HCT: VM = 1.3 V; VI = GND to 3 V. (1) HC : VM = 50%; VI = GND to VCC. HCT: VM = 1.3 V; VI = GND to 3 V. Fig.6 Fig.7 Waveforms showing the data input (Dn) to output (Qn) propagation delays and the output transition times.
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