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Logic / Arithmetic Circuits / CD74HCT688E
Datasheets
CD74HCT688E by:
Texas Instruments
General Electric Solid State
Harris Semiconductor
Intersil Corporation
RCA
Rochester Electronics LLC
Texas Instruments
Thomson Consumer Electronics
Not Found

8-Bit Identity/Magnitude Comparators (P=Q) with Enable 20-PDIP -55 to 125

Part Details for CD74HCT688E by Texas Instruments

Results Overview of CD74HCT688E by Texas Instruments

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

CD74HCT688E Information

CD74HCT688E by Texas Instruments is an Arithmetic Circuit.
Arithmetic Circuits are under the broader part category of Logic Components.

Digital logic governs the behavior of signals in electronic circuits, enabling complex decisions based on simple binary inputs (yes/no). Logic components perform operations from these signals. Read more about Logic Components on our Logic part category page.

Price & Stock for CD74HCT688E

Part # Distributor Description Stock Price Buy
DISTI # 296-2131-5-ND
DigiKey IC COMPARATOR IDENTITY 8B 20DIP Min Qty: 1 Lead time: 6 Weeks Container: Tube 616
In Stock
  • 1 $0.9600
  • 20 $0.6340
  • 40 $0.5907
  • 100 $0.5450
  • 260 $0.5083
  • 500 $0.4883
  • 1,000 $0.4707
  • 2,500 $0.4522
  • 5,000 $0.4410
$0.4410 / $0.9600 Buy Now
DISTI # 595-CD74HCT688E
Mouser Electronics Logic Comparators 8-Bit Magnitude RoHS: Compliant 1345
  • 1 $0.9600
  • 10 $0.6340
  • 20 $0.5900
  • 100 $0.5450
  • 260 $0.5080
  • 500 $0.4880
  • 1,000 $0.4830
  • 4,000 $0.4410
  • 8,000 $0.4190
$0.4190 / $0.9600 Buy Now
DISTI # V99:2348_07247969
Arrow Electronics Identity Comparator 8-Bit Push-Pull Inverting 20-Pin PDIP Tube RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 6 Weeks Date Code: 2123 Americas - 484
  • 1 $0.5939
  • 10 $0.4722
  • 100 $0.4325
  • 500 $0.4202
  • 1,000 $0.4088
  • 2,500 $0.3968
  • 5,000 $0.3868
$0.3868 / $0.5939 Buy Now
DISTI # 69883882
Verical Identity Comparator 8-Bit Push-Pull Inverting 20-Pin PDIP Tube RoHS: Compliant Min Qty: 15 Package Multiple: 1 Date Code: 2123 Americas - 484
  • 15 $0.3968
  • 5,000 $0.3868
$0.3868 / $0.3968 Buy Now
Bristol Electronics   149
RFQ
Bristol Electronics   124
RFQ
Quest Components IC,MAGNITUDE COMPARATOR,HCT-CMOS,DIP,20PIN,PLASTIC 70
  • 1 $0.8898
  • 7 $0.7415
  • 21 $0.5339
$0.5339 / $0.8898 Buy Now
Quest Components IC,MAGNITUDE COMPARATOR,HCT-CMOS,DIP,20PIN,PLASTIC 36
  • 1 $0.7700
  • 7 $0.6160
  • 33 $0.4620
$0.4620 / $0.7700 Buy Now
Quest Components IC,MAGNITUDE COMPARATOR,HCT-CMOS,DIP,20PIN,PLASTIC 4
  • 1 $1.6015
  • 4 $1.2812
$1.2812 / $1.6015 Buy Now
Rochester Electronics CD74HCT688 8-Bit Identity/Magnitude Comparators (P=Q) with Enable RoHS: Not Compliant Status: Active Min Qty: 1 395
  • 1 $0.4431
  • 25 $0.4342
  • 100 $0.4165
  • 500 $0.3988
  • 1,000 $0.3766
$0.3766 / $0.4431 Buy Now
DISTI # CD74HCT688E
TME IC: digital, 8bit,comparator, THT, DIP20, HCT, 4.5÷5.5VDC Min Qty: 1 517
  • 1 $0.9350
  • 20 $0.7950
  • 40 $0.7360
  • 100 $0.6540
  • 260 $0.5720
  • 500 $0.5210
  • 1,000 $0.4720
  • 2,500 $0.4470
$0.4470 / $0.9350 Buy Now
ComSIT USA Magnitude Comparator, HCT Series, 8-Bit, Inverted Output, CMOS, PDIP20 RoHS: Compliant ECCN: EAR99 Stock DE - 240
Stock ES - 21
Stock US - 0
Stock MX - 0
Stock CN - 0
Stock HK - 0
RFQ
LCSC AB 34ns4.5V50pF 4.5V5.5V 8 PDIP-20 Digital Comparators ROHS 110
  • 1 $0.6258
  • 10 $0.5340
  • 30 $0.4682
  • 100 $0.4147
  • 500 $0.3978
  • 1,000 $0.3871
$0.3871 / $0.6258 Buy Now
Win Source Electronics IC COMPARATOR IDENTITY 8B 20DIP 577
  • 40 $1.3550
  • 90 $1.1120
  • 140 $1.0770
  • 195 $1.0420
  • 250 $1.0070
  • 335 $0.9030
$0.9030 / $1.3550 Buy Now

Part Details for CD74HCT688E

CD74HCT688E CAD Models

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CD74HCT688E Part Data Attributes

Parametric Data
CD74HCT688E Texas Instruments
Buy Now Datasheet
Compare Parts:
CD74HCT688E Texas Instruments 8-Bit Identity/Magnitude Comparators (P=Q) with Enable 20-PDIP -55 to 125
Select a part to compare:
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer TEXAS INSTRUMENTS INC
Part Package Code DIP
Pin Count 20
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Samacsys Manufacturer Texas Instruments
Additional Feature CASCADABLE
Family HCT
JESD-30 Code R-PDIP-T20
JESD-609 Code e4
Length 25.4 mm
Load Capacitance (CL) 50 pF
Logic IC Type MAGNITUDE COMPARATOR
Max I(ol) 0.004 A
Number of Bits 8
Number of Functions 8
Number of Terminals 20
Operating Temperature-Max 125 °C
Operating Temperature-Min -55 °C
Output Polarity INVERTED
Package Body Material PLASTIC/EPOXY
Package Code DIP
Package Equivalence Code DIP20,.3
Package Shape RECTANGULAR
Package Style IN-LINE
Packing Method TUBE
Power Supply Current-Max (ICC) 0.08 mA
Prop. Delay@Nom-Sup 42 ns
Propagation Delay (tpd) 51 ns
Qualification Status Not Qualified
Seated Height-Max 5.08 mm
Supply Voltage-Max (Vsup) 5.5 V
Supply Voltage-Min (Vsup) 4.5 V
Supply Voltage-Nom (Vsup) 5 V
Surface Mount NO
Technology CMOS
Temperature Grade MILITARY
Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form THROUGH-HOLE
Terminal Pitch 2.54 mm
Terminal Position DUAL
Width 7.62 mm

Alternate Parts for CD74HCT688E

This table gives cross-reference parts and alternative options found for CD74HCT688E. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of CD74HCT688E, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
74HCT688NB Nexperia Check for Price Identity Comparator CD74HCT688E vs 74HCT688NB
5962-8685701RA Intersil Corporation Check for Price HCT SERIES, 8-BIT MAGNITUDE COMPARATOR, INVERTED OUTPUT, CDIP20 CD74HCT688E vs 5962-8685701RA
MM74HCT688J National Semiconductor Corporation Check for Price IC HCT SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, CDIP20, DIP-20, Arithmetic Circuit CD74HCT688E vs MM74HCT688J
TC74HCT688AP Toshiba America Electronic Components Check for Price IC HCT SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDIP20, 0.300 INCH, 2.54 MM PITCH, PLASTIC, DIP-20, Arithmetic Circuit CD74HCT688E vs TC74HCT688AP
GD54HCT688 Goldstar Electron Co Ltd Check for Price Identity Comparator, HCT Series, 8-Bit, Inverted Output, CMOS, PDIP20, CD74HCT688E vs GD54HCT688
Part Number Manufacturer Composite Price Description Compare
74HCT688N NXP Semiconductors Check for Price IC HCT SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDIP20, PLASTIC, DIP-20, Arithmetic Circuit CD74HCT688E vs 74HCT688N
CD74HCT688EX Harris Semiconductor Check for Price Identity Comparator, HCT Series, 8-Bit, Inverted Output, CMOS, PDIP20 CD74HCT688E vs CD74HCT688EX
5962-8685701RA Texas Instruments Check for Price 8-Bit Identity/Magnitude Comparators (P=Q) with Enable 20-CDIP -55 to 125 CD74HCT688E vs 5962-8685701RA
CD54HCT688F3A Texas Instruments $16.2933 8-Bit Identity/Magnitude Comparators (P=Q) with Enable 20-CDIP -55 to 125 CD74HCT688E vs CD54HCT688F3A
GD54HCT688J Goldstar Electron Co Ltd Check for Price Identity Comparator, HCT Series, 8-Bit, Inverted Output, CMOS, CDIP20, CD74HCT688E vs GD54HCT688J
GD74HCT688 Goldstar Electron Co Ltd Check for Price Identity Comparator, HCT Series, 8-Bit, Inverted Output, CMOS, PDIP20, CD74HCT688E vs GD74HCT688
933671010652 NXP Semiconductors Check for Price IC HCT SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDIP20, PLASTIC, DIP-20, Arithmetic Circuit CD74HCT688E vs 933671010652
CD74HCT688ME4 Texas Instruments Check for Price 8-Bit Identity/Magnitude Comparators (P=Q) with Enable 20-SOIC -55 to 125 CD74HCT688E vs CD74HCT688ME4
74HCT688PW,118 NXP Semiconductors Check for Price 74HC(T)688 - 8-bit magnitude comparator TSSOP2 20-Pin CD74HCT688E vs 74HCT688PW,118
HD74HCT688P-E Renesas Electronics Corporation Check for Price HCT SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDIP20, DP-20N CD74HCT688E vs HD74HCT688P-E

CD74HCT688E Related Parts

CD74HCT688E Frequently Asked Questions (FAQ)

  • The CD74HCT688E can handle clock frequencies up to 40 MHz.

  • The CD74HCT688E requires a power supply voltage (VCC) of 4.5V to 5.5V, and it is recommended to use a decoupling capacitor of 0.1uF to 1uF between VCC and GND to ensure proper power supply decoupling.

  • The CD74HCT688E can tolerate input voltages up to 7V, but it is recommended to keep the input voltage within the recommended operating range of 4.5V to 5.5V to ensure reliable operation.

  • The output enable (OE) pin is active-low, meaning that the outputs are enabled when OE is low (GND) and disabled when OE is high (VCC).

  • The propagation delay of the CD74HCT688E is typically around 10ns to 15ns, depending on the operating conditions and load capacitance.