74HCT594D

8-bit shift register with output register

The 74HC594; 74HCT594 is an 8-bit serial-in/serial or parallel-out shift register with a storage register. Separate clock and reset inputs are provided on both shift and storage registers. The device features a serial input (DS) and a serial output (Q7S) to enable cascading. Data is shifted on the LOW-to-HIGH transitions of the SHCP input, and the data in the shift register is transferred to the storage register on a LOW-to-HIGH transition of the STCP input. If both clocks are connected together, the shift register will always be one clock pulse ahead of the storage register. A LOW level on one of the two register reset pins (SHR and STR) will clear the corresponding register. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74HCT594D 74HCT594D,118 935043390118 SOT109-1 Order product
74HCT594D 74HCT594D,112 935043390112 SOT109-1 Order product

Features

  • Synchronous serial input and output
  • Complies with JEDEC standard No.7A
  • 8-bit parallel output
  • Shift and storage registers have independent direct clear and clocks
  • Independent clocks for shift and storage registers
  • 100 MHz (typical)
  • Input levels:
    • For 74HC594: CMOS level
    • For 74HCT594: TTL level
  • Multiple package options
  • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

Target applications

  • Serial-to parallel data conversion
  • Remote control holding register

Parametrics

Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)fmax (MHz)No of bitsPower dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74HCT594DProduction4.5 - 5.5TTL± 6151008low-40~125866.945.1SO16

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackageOutline versionReflow-/Wave solderingPacking
74HCT594D74HCT594D,118
( 9350 433 90118 )
Active74HCT594D
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Reel 13" Q1/T1
74HCT594D,112
( 9350 433 90112 )
Active74HCT594DBulk Pack

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFEFRIFRMTBF (hour)MSLMSL leadfree
74HCT594D74HCT594D,11874HCT594D84.96.621.51E811
74HCT594D74HCT594D,11274HCT594D84.96.621.51E811
Quality and reliability disclaimer

Documentation (7)

File nameTitleTypeDate
74HC_HCT5948-bit shift register with output registerData sheet2017-03-17
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT109-1_118SO16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118Packing2013-04-24
SOT109-1plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.35 mm bodyOutline drawing2018-10-18

Support

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Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
74HCT594D74HCT594D,118935043390118Reel 13" Q1/T1Order product
74HCT594D74HCT594D,112935043390112Bulk PackOrder product

Sample

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