74LV573DB,118 NXP

74LV573 Octal D-type transparent latch 3-state Rev. 03 15 April 2009 Product data sheet 1. General description The 74LV573 is a low-voltage Si-gate CMOS device that is pin and function compatible with 74HC573 and 74HCT573. The 74LV573 consists of eight D-type transparent latches, featuring separate D-type inputs for each latch and 3-state true outputs for bus-oriented applications. A latch enable (LE) input and an output enable (OE) input are common to all internal latches. When LE is HIGH, data at the Dn inputs enters the latches. In this condition, the latches are transparent, that is, a latch output will change each time its corresponding D-input changes. When LE is LOW, the latches store the information that was present at the D-inputs one set-up time preceding the HIGH-to-LOW transition of LE. When OE is LOW, the contents of the eight 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 74LV573 is functionally identical to the 74LV373, but has a different pin arrangement. 2. Features n Wide operating voltage: 1.0 V to 5.5 V n Optimized for low voltage applications: 1.0 V to 3.6 V n Accepts TTL input levels between V = 2.7 V and V = 3.6 V CC CC n Typical output ground bounce < 0.8 V at V = 3.3 V and T = 25 C CC amb n Typical HIGH-level output voltage (V ) undershoot: > 2 V at V = 3.3 V and OH CC T =25 C amb n Inputs and outputs on opposite sides of package allowing easy interface with microprocessors n Useful as input or output port for microprocessors n Common 3-state output enable input n ESD protection: u HBM JESD22-A114E exceeds 2000 V u MM JESD22-A115-A exceeds 200 V n Multiple package options n Specied from - 40 Cto+85 C and from - 40 C to +125 C74LV573 NXP Semiconductors Octal D-type transparent latch 3-state 3. Ordering information Table 1. Ordering information Type number Package Temperature range Name Description Version 74LV573N - 40 C to +125 C DIP20 plastic dual in-line package 20 leads (300 mil) SOT146-1 74LV573D - 40 C to +125 C SO20 plastic small outline package 20 leads SOT163-1 body width 7.5 mm 74LV573DB - 40 C to +125 C SSOP20 plastic shrink small outline package 20 leads SOT339-1 body width 5.3 mm 74LV573PW - 40 C to +125 C TSSOP20 plastic thin shrink small outline package 20 leads SOT360-1 body width 4.4 mm 4. Functional diagram 11 C1 1 EN1 1 2 19 1D OE 2 19 D0 Q0 3 18 3 18 D1 Q1 4 17 4 17 D2 Q2 5 16 5 16 D3 Q3 6 15 6 15 D4 Q4 7 14 D5 Q5 7 14 8 13 D6 Q6 8 13 9 12 D7 Q7 9 12 LE 11 mna807 mna808 Fig 1. Logic symbol Fig 2. IEC logic symbol 74LV573 3 NXP B.V. 2009. All rights reserved. Product data sheet Rev. 03 15 April 2009 2 of 18