| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| SN74LS688DWR | Texas Instruments | $1.3146 | Identity Comparator, LS Series, 8-Bit, Inverted Output, TTL, PDSO20 | SN74LS688DW vs SN74LS688DWR |
| SN74LS688DW | onsemi | Check for Price | Identity Comparator, LS Series, 8-Bit, Inverted Output, TTL, PDSO20 | SN74LS688DW vs SN74LS688DW |
| SN74LS688DWRE4 | Texas Instruments | Check for Price | Identity Comparator, LS Series, 8-Bit, Inverted Output, TTL, PDSO20 | SN74LS688DW vs SN74LS688DWRE4 |
| SN74LS688DW | Rochester Electronics LLC | Check for Price | Identity Comparator, LS Series, 8-Bit, Inverted Output, TTL, PDSO20 | SN74LS688DW vs SN74LS688DW |
| SN74LS688DWE4 | Texas Instruments | Check for Price | Identity Comparator, LS Series, 8-Bit, Inverted Output, TTL, PDSO20 | SN74LS688DW vs SN74LS688DWE4 |
| SN74LS688DWG4 | Texas Instruments | Check for Price | Identity Comparator, LS Series, 8-Bit, Inverted Output, TTL, PDSO20 | SN74LS688DW vs SN74LS688DWG4 |
| SN74LS688DWRG4 | Texas Instruments | Check for Price | Identity Comparator, LS Series, 8-Bit, Inverted Output, TTL, PDSO20 | SN74LS688DW vs SN74LS688DWRG4 |
| SN74LS688DWR2 | onsemi | Check for Price | Identity Comparator, LS Series, 8-Bit, Inverted Output, TTL, PDSO20 | SN74LS688DW vs SN74LS688DWR2 |
Part Details for SN74LS688DW by Texas Instruments
Results Overview of SN74LS688DW by Texas Instruments
- Distributor Offerings: (4 listings)
- Number of FFF Equivalents: (8 replacements)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (10 options)
- CAD Models: (Available)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
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.
Applications
Consumer Electronics
Aerospace and Defense
Energy and Power Systems
Healthcare
SN74LS688DW Information
SN74LS688DW 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.
Available Datasheets
| Part # | Manufacturer | Description | Datasheet |
|---|---|---|---|
| SN74LS688DW | Texas Instruments | 8-Bit Identity/Magnitude Comparators (P=Q) with Enable 20-SOIC 0 to 70 | |
| SN74LS688DWR | Texas Instruments | 8-Bit Identity/Magnitude Comparators (P=Q) with Enable 20-SOIC 0 to 70 |
Price & Stock for SN74LS688DW
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
|
DISTI #
296-34027-5-ND
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DigiKey | IC ID COMPARATOR 8BIT 20-SOIC Container: Tube |
0 Tube |
|
Buy Now | |
|
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Quest Components | IC,IDENTITY COMPARATOR,LS-TTL,SOP,20PIN,PLASTIC | 29 |
|
$2.3925 / $3.2625 | Buy Now |
|
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Quest Components | IC,IDENTITY COMPARATOR,LS-TTL,SOP,20PIN,PLASTIC | 15 |
|
$1.6313 / $3.2625 | Buy Now |
|
|
Rochester Electronics | Identity Comparator, LS Series, 8-Bit, Inverted Output, TTL, PDSO20 RoHS: Compliant Status: Obsolete Min Qty: 1 | 25 |
|
$1.7200 / $2.1500 | Buy Now |
US Tariff Estimator: SN74LS688DW by Texas Instruments
Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.
SN74LS688DW CAD Models
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SN74LS688DW Part Data Attributes
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SN74LS688DW
Texas Instruments
Buy Now
Datasheet
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Compare Parts:
SN74LS688DW
Texas Instruments
Identity Comparator, LS Series, 8-Bit, Inverted Output, TTL, PDSO20
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| Rohs Code | Yes | |
| Part Life Cycle Code | Obsolete | |
| Part Package Code | SOIC | |
| Pin Count | 20 | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.60 | |
| Additional Feature | Cascadable | |
| Family | Ls | |
| JESD-30 Code | R-PDSO-G20 | |
| JESD-609 Code | e4 | |
| Length | 12.8 Mm | |
| Load Capacitance (CL) | 45 Pf | |
| Logic IC Type | Identity Comparator | |
| Max I(ol) | 0.024 A | |
| Moisture Sensitivity Level | 1 | |
| Number of Bits | 8 | |
| Number of Functions | 8 | |
| Number of Terminals | 20 | |
| Operating Temperature-Max | 70 °C | |
| Operating Temperature-Min | ||
| Output Characteristics | Totem-Pole | |
| Output Polarity | Inverted | |
| Package Body Material | Plastic/Epoxy | |
| Package Code | SOP | |
| Package Equivalence Code | SOP20,.4 | |
| Package Shape | Rectangular | |
| Package Style | Small Outline | |
| Packing Method | Tube | |
| Peak Reflow Temperature (Cel) | 260 | |
| Power Supply Current-Max (ICC) | 65 Ma | |
| Prop. Delay@Nom-Sup | 23 Ns | |
| Propagation Delay (tpd) | 23 Ns | |
| Qualification Status | Not Qualified | |
| Schmitt Trigger | Yes | |
| Seated Height-Max | 2.65 Mm | |
| Supply Voltage-Max (Vsup) | 5.25 V | |
| Supply Voltage-Min (Vsup) | 4.85 V | |
| Supply Voltage-Nom (Vsup) | 5 V | |
| Surface Mount | Yes | |
| Technology | Ttl | |
| Temperature Grade | Commercial | |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | |
| Terminal Form | Gull Wing | |
| Terminal Pitch | 1.27 Mm | |
| Terminal Position | Dual | |
| Time@Peak Reflow Temperature-Max (s) | 30 | |
| Width | 7.5 Mm |
Alternate Parts for SN74LS688DW
This table gives cross-reference parts and alternative options found for SN74LS688DW. 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 SN74LS688DW, 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.
SN74LS688DW Frequently Asked Questions (FAQ)
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The maximum clock frequency of the SN74LS688DW is 25 MHz.
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The SN74LS688DW requires a single 5V power supply, and it's recommended to use a decoupling capacitor of 0.1uF to 1uF between VCC and GND to ensure proper power supply decoupling.
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The propagation delay of the SN74LS688DW is typically around 10-15 ns, but it can vary depending on the operating conditions and load capacitance.
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No, the SN74LS688DW is designed to operate at 5V, and it's not recommended to use it in a 3.3V system. Using it at a lower voltage may affect its performance and reliability.
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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).