74HC164D Nexperia

74HC164 74HCT164 8-bit serial-in, parallel-out shift register Rev. 7 13 June 2013 Product data sheet 1. General description The 74HC164 74HCT164 is an 8-bit serial-in/parallel-out shift register. The device features two serial data inputs (DSA and DSB), eight parallel data outputs (Q0 to Q7). Data is entered serially through DSA or DSB and either input can be used as an active HIGH enable for data entry through the other input. Data is shifted on the LOW-to-HIGH transitions of the clock (CP) input. A LOW on the master reset input (MR) clears the register and forces all outputs LOW, independently of other 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 74HC164: CMOS level For 74HCT164: TTL level Gated serial data inputs Asynchronous master reset 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 C to +85 C and 40 C to +125 C.74HC164 74HCT164 NXP Semiconductors 8-bit serial-in, parallel-out shift register 3. Ordering information Table 1. Ordering information Type number Package Temperature range Name Description Version 74HC164N 40 C to +125 C DIP14 plastic dual in-line package 14 leads (300 mil) SOT27-1 74HCT164N 74HC164D 40 C to +125 C SO14 plastic small outline package 14 leads body width SOT108-1 3.9 mm 74HCT164D 74HC164DB 40 C to +125 C SSOP14 plastic shrink small outline package 14 leads body SOT337-1 width 5.3 mm 74HCT164DB 74HC164PW 40 C to +125 C TSSOP14 plastic thin shrink small outline package 14 leads SOT402-1 body width 4.4 mm 74HCT164PW 74HC164BQ 40 C to +125 C DHVQFN14 plastic dual in-line compatible thermal enhanced very SOT762-1 thin quad flat package no leads 14 terminals 74HCT164BQ body 2.5 3 0.85 mm 4. Functional diagram SRG8 8 C1/ 9 R 1 3 & 1D 2 4 5 3 Q0 DSA 1 6 4 Q1 2 DSB 5 Q2 10 6 Q3 11 10 Q4 CP 8 11 Q5 12 12 Q6 13 MR 9 13 Q7 001aac423 001aac424 Fig 1. Logic symbol Fig 2. IEC logic symbol 1 DSA 2 DSB 8-BIT SERIALIN/PARALLELOUT 8 CP SHIFT REGISTER 9 MR 314151601213 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 001aac425 Fig 3. Logic diagram 74HC HCT164 All information provided in this document is subject to legal disclaimers. NXP B.V. 2013. All rights reserved. Product data sheet Rev. 7 13 June 2013 2 of 20