74HC688DB NRND

8-bit magnitude comparator

The 74HC688 is an 8-bit magnitude comparator. It performs comparisons of two 8-bit binary or BCD words. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

Not recommended for new designs (NRND).

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74HC688DB 74HC688DB,118 935188760118 SOT339-1 Order product
74HC688DB 74HC688DB,112 935188760112 SOT339-1 Order product

Features

  • Compare two 8-bit words
  • Wide supply voltage range from 2.0 to 6.0 V
  • CMOS input levels
  • Complies with JEDEC standard: no. 7A
  • ESD protection:
    • HBM JESD22-A114-F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V
  • Multiple package options
  • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

Target applications

Parametrics

Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)No of bitsPower dissipation considerationsTamb (Cel)Rth(j-a) (K/W)Ψth(j-top) (K/W)Package name
74HC688DB
NRND
Not for design in2.0 - 6.0CMOS+/- 5.2178low-40~12513640.0SSOP20

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackageOutline versionReflow-/Wave solderingPacking
74HC688DB
NRND
74HC688DB,118
( 9351 887 60118 )
ActiveHC688
SSOP20
(SOT339-1)
SOT339-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateMSLMSL leadfree
74HC688DB
NRND
74HC688DB,11874HC688DBweek 17, 200511
Quality and reliability disclaimer

Documentation (7)

File nameTitleTypeDate
74HC6888-bit magnitude comparatorData sheet2018-07-04
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
D12_PC_sch_ver2_0-Design support1998-04-22
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT339-1_118SSOP20; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118Packing2015-10-02
SOT339-1plastic, shrink small outline package; 20 leads; 0.65 mm pitch; 7.2 mm x 5.3 mm x 2 mm bodyOutline drawing2018-10-18

Support

If you are in need of design/technical support, let us know and fill in the answer form, we'll get back to you shortly.

Models

File nameTitleTypeDate
D12_PC_sch_ver2_0-Design support1998-04-22

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
74HC688DB74HC688DB,118935188760118Reel 13" Q1/T1Order product
74HC688DB74HC688DB,112935188760112Bulk PackOrder product

Sample

As a Nexperia customer you can order samples via our sales organization or directly via our Online Sample Store: https://extranet.nexperia.com.

Sample orders normally take 2-4 days for delivery.

If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples.