74HC299-Q100

8-bit universal shift register; 3-state

The 74HC299-Q100 is an 8-bit universal shift register with 3-state outputs. It contains eight edge-triggered D-type flip-flops and the interstage logic necessary to perform synchronous shift-right, shift-left, parallel load and hold operations. The type of operation is determined by the mode select inputs S0 and S1. Pins I/O0 to I/O7 are flip-flop 3-state buffer outputs which allow them to operate as data inputs in parallel load mode. The serial outputs Q0 and Q7 are used for expansion in serial shifting of longer words. A LOW signal on the asynchronous master reset input MR overrides the Sn and clock CP inputs and resets the flip-flops. All other state changes are initiated by the rising edge of the clock pulse. Inputs can change when the clock is either state, provided that the recommended set-up and hold times are observed. A HIGH signal on the 3-state output enable inputs OE1 or OE2 disables the 3-state buffers and the I/On outputs assume a high-impedance OFF-state. In this condition, the shift, hold, load and reset operations can still occur. The 3-state buffers are also disabled by HIGH signals on both S0 and S1, when in preparation for a parallel load operation. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications.

Features

  • Automotive product qualification in accordance with AEC-Q100 (Grade 1)
    • Specified from -40 °C to +85 °C and from -40 °C to +125 °C
  • CMOS input levels
  • Multiplexed inputs/outputs provide improved bit density
  • Four operating modes:
    • Shift left
    • Shift right
    • Hold (store)
    • Load data
  • Operates with output enable or at high-impedance OFF-state
  • 3-state outputs drive bus lines directly
  • Cascadable for n-bit word lengths
  • ESD protection:
    • MIL-STD-883, method 3015 exceeds 2000 V
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V (C = 200 pF, R = 0 Ω)

Parametrics

Type numberProduct statusVCC (V)Logic switching levelsPower dissipation considerationsTamb (°C)Rth(j-a) (K/W)Rth(j-c) (K/W)Package name
74HC299D-Q100Production2.0 - 6.0+/- 7.8low-40~1256338SO20

Package

Type numberPackageOutline versionReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74HC299D-Q100
SO20
(SOT163-1)
SOT163-1Reel 13" Q1/T1ActiveStandard Marking74HC299D-Q100J
( 9356 909 63118 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateMSLMSL leadfree
74HC299D-Q10074HC299D-Q100J74HC299D-Q10011
Quality and reliability disclaimer

Documentation (8)

File nameTitleTypeDate
74HC299_Q1008-bit universal shift register; 3-stateData sheet2020-03-02
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
Nexperia_Selection_guide_2020Nexperia Selection Guide 2020Selection guide2020-01-31
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SOT163-1_118SO20; Reel pack for SMD, 13"; Q1/T1 product orientationPacking2020-02-14
SOT163-1_115Tape reel SMD; standard product orientation 12NC ending 115Packing2013-04-25
SOT163-1plastic, small outline package; 20 leads; 1.27 mm pitch; 12.8 mm x 7.5 mm x 2.65 mm bodyOutline drawing2018-10-18
SOT163-1_518SO20; Reel dry pack for SMD, 13"; Q1/T1 product orientationPacking2020-02-14

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