74AHCT594D,112 NXP

74AHC594 74AHCT594 8-bit shift register with output register Rev. 02 9 June 2008 Product data sheet 1. General description The 74AHC594 74AHCT594 is a high-speed Si-gate CMOS device and is pin compatible with Low-Power Schottky TTL (LSTTL). It is specied in compliance with JEDEC standard No. 7-A. The 74AHC594 74AHCT594 is an 8-bit, non-inverting, serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. Separate clocks (SHCP and STCP) and direct overriding clears (SHR and STR) are provided on both the shift and storage registers. A serial output (Q7S) is provided for cascading purposes. Both the shift and storage register clocks are positive-edge triggered. If the user wishes to connect both clocks together, the shift register will always be one count pulse ahead of the storage register. 2. Features n Balanced propagation delays n All inputs have Schmitt-trigger actions n Inputs accept voltages higher than V CC n Wide supply voltage range from 2.0 V to 5.5 V n 8-bit serial-in, parallel-out shift register with storage n Independent direct overriding clears on shift and storage registers n Independent clocks for shift and storage registers n Latch-up performance exceeds 100 mA per JESD78 Class II n Input levels: u For 74AHC594: CMOS level u For 74AHCT594: TTL level n ESD protection: u HBM EIA/JESD22-A114E exceeds 2000 V u MM EIA/JESD22-A115-A exceeds 200 V u CDM EIA/JESD22-C101C exceeds 1000 V n Multiple package options n Specied from - 40 C to +85 C and from - 40 C to +125 C 3. Applications n Serial-to parallel data conversion n Remote control holding register74AHC594 74AHCT594 NXP Semiconductors 8-bit shift register with output register 4. Ordering information Table 1. Ordering information Type number Package Temperature range Name Description Version 74AHC594 74AHC594D - 40 C to +125 C SO16 plastic small outline package 16 leads SOT109-1 body width 3.9 mm 74AHC594DB - 40 C to +125 C SSOP16 plastic shrink small outline package 16 leads SOT338-1 body width 5.3 mm 74AHC594PW - 40 C to +125 C TSSOP16 plastic thin shrink small outline package 16 leads SOT403-1 body width 4.4 mm 74AHC594BQ - 40 C to +125 C DHVQFN16 plastic dual in-line compatible thermal enhanced very SOT763-1 thin quad at package no leads 16 terminals body 2.5 3.5 0.85 mm 74AHCT594 74AHCT594D - 40 C to +125 C SO16 plastic small outline package 16 leads SOT109-1 body width 3.9 mm 74AHCT594DB - 40 C to +125 C SSOP16 plastic shrink small outline package 16 leads SOT338-1 body width 5.3 mm 74AHCT594PW - 40 C to +125 C TSSOP16 plastic thin shrink small outline package 16 leads SOT403-1 body width 4.4 mm 74AHCT594BQ - 40 C to +125 C DHVQFN16 plastic dual in-line compatible thermal enhanced very SOT763-1 thin quad at package no leads 16 terminals body 2.5 3.5 0.85 mm 5. Functional diagram 14 DS 11 SHCP 8-STAGE SHIFT REGISTER 10 SHR 9 Q7S 12 STCP 8-BIT STORAGE REGISTER 13 STR 15 1 234567 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 mbc320 Fig 1. Functional diagram 74AHC AHCT594 2 NXP B.V. 2008. All rights reserved. Product data sheet Rev. 02 9 June 2008 2 of 22