74HCT273N,652

74HC273 74HCT273 Octal D-type flip-flop with reset positive-edge trigger Rev. 4 10 June 2013 Product data sheet 1. General description The 74HC273 74HCT273 is an octal positive-edge triggered D-type flip-flop. The device features clock (CP) and master reset (MR) inputs. The outputs Qn will assume the state of their corresponding Dn inputs that meet the set-up and hold time requirements on the LOW-to-HIGH clock (CP) transition. A LOW on MR forces the outputs LOW independently of clock and data inputs. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of V . CC 2. Features and benefits Input levels: For 74HC273: CMOS level For 74HCT273: TTL level Common clock and master reset Eight positive edge-triggered D-type flip-flops Complies with JEDEC standard no. 7A ESD protection: HBM JESD22-A114F exceeds 2000 V MM JESD22-A115-A exceeds 200 V. Multiple package options Specified from 40 Cto+85 C and from 40 Cto+125 C 3. Ordering information Table 1. Ordering information Type number Package Temperature range Name Description Version 74HC273N 40 C to +125 C DIP20 plastic dual in-line package 20 leads (300 mil) SOT146-1 74HCT273N 74HC273D 40 C to +125 C SO20 plastic small outline package 20 leads body width 7.5 mm SOT163-1 74HCT273D 74HC273DB 40 C to +125 C SSOP20 plastic shrink small outline package 20 leads body width SOT339-1 5.3 mm 74HCT273DB74HC273 74HCT273 NXP Semiconductors Octal D-type flip-flop with reset positive-edge trigger Table 1. Ordering information continued Type number Package Temperature range Name Description Version 74HC273PW 40 C to +125 C TSSOP20 plastic thin shrink small outline package 20 leads body SOT360-1 width 4.4 mm 74HCT273PW 74HC273BQ 40 C to +125 C DHVQFN20 plastic dual in-line compatible thermal enhanced very thin SOT764-1 quad flat package no leads 20 terminals 74HCT273BQ body 2.5 4.5 0.85 mm 4. Functional diagram 11 CP C1 1 R MR 11 3 2 D0 1D Q0 D0 Q0 CP 3 2 3 2 D1 Q1 D0 Q0 4 5 4 5 D1 Q1 4 5 D2 Q2 D1 Q1 7 6 7 6 7 6 D3 Q3 D2 Q2 FF1 D2 Q2 8 9 D4 TO Q4 8 9 8 9 13 12 D3 Q3 D3 Q3 FF8 D5 Q5 13 12 13 12 14 15 D4 Q4 D4 Q4 D6 Q6 17 16 14 15 14 15 D5 Q5 D7 Q7 D5 Q5 18 19 17 16 D6 Q6 17 16 MR D6 Q6 18 19 1 D7 Q7 CP 18 19 MR 11 D7 Q7 001aae055 1 mna763 mna764 Fig 1. Functional diagram Fig 2. Logic symbol Fig 3. IEC logic symbol 74HC HCT273 All information provided in this document is subject to legal disclaimers. NXP B.V. 2013. All rights reserved. Product data sheet Rev. 4 10 June 2013 2 of 21