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74HC688D

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.

Features and benefits

  • 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

Parametrics

Type number Product status VCC (V) Logic switching levels Output drive capability (mA) tpd (ns) Nr of bits Power dissipation considerations Tamb (°C) Rth(j-a) (K/W) Ψth(j-top) (K/W) Rth(j-c) (K/W) Package name
74HC688D Production 2.0 - 6.0 CMOS ± 5.2 17 8 low -40~125 82 24.3 58 SO20

PCB Symbol, Footprint and 3D Model

Model Name Description

Package

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
74HC688D 74HC688D,653
(933713900653)
Active 74HC688D SOT163-1
SO20
(SOT163-1)
SOT163-1 WAVE_BG-BD-1
Not available

Environmental information

Type number Orderable part number Chemical content RoHS RHF-indicator
74HC688D 74HC688D,653 74HC688D rohs rhf rhf
Quality and reliability disclaimer

Documentation (9)

File name Title Type Date
74HC688 8-bit magnitude comparator Data sheet 2021-07-16
AN11044 Pin FMEA 74HC/74HCT family Application note 2019-01-09
SOT163-1 3D model for products with SOT163-1 package Design support 2020-01-22
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
D12_PC_sch_ver2_0 D12_PC_sch_ver2_0 Other type 2023-09-12
SOT163-1 plastic, small outline package; 20 leads; 1.27 mm pitch; 12.8 mm x 7.5 mm x 2.65 mm body Package information 2022-06-20
74HC688D_Nexperia_Product_Reliability 74HC688D Nexperia Product Reliability Quality document 2023-05-29
HCT_USER_GUIDE HC/T User Guide User manual 1997-10-31
WAVE_BG-BD-1 Wave soldering profile Wave soldering 2021-09-08

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 name Title Type Date
SOT163-1 3D model for products with SOT163-1 package Design support 2020-01-22

PCB Symbol, Footprint and 3D Model

Model Name Description

Ordering, pricing & availability

Type number Orderable part number Ordering code (12NC) Status Packing Packing Quantity Buy online
74HC688D 74HC688D,653 933713900653 Active SOT163-1_653 2,000 Order 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.

How does it work?

The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74HC688D 74HC688D,653 933713900653 SOT163-1 Order product