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SN75121N The Texas Instruments SN75121N is a dual line driver designed for digital data transmission. It operates within a 0°C to 70°C temperature range and uses a single 5V supply.
Mfr Part #:

SN75121N

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments SN75121N is a dual line driver designed for digital data transmission. It operates within a 0°C to 70°C temperature range and uses a single 5V supply.
✓ Total Stock: 26,815 pcs
$ Price Range: $3.28

SN75121N Available from 3 distributors

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
25,829 pcs
On Request
25829 pcs On Request 1 On Request On Request On Request On Request On Request
Partservice ✓
Non-Authorised Inventory information
836 pcs
On Request
836 pcs On Request 1 On Request On Request On Request On Request On Request
Hybrid Electronics ✓
Non-Authorised Inventory information
150 pcs
On Request
150 pcs On Request 1 On Request On Request 0827 On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

SN75121N Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Mounting Type
Number of Drivers
Operating Temperature
Output Current
Supplier Device Package
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Type
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SN75121N Description

Short technical summary and product information.

The SN75121N from Texas Instruments is a dual line driver designed for reliable digital data transmission over various line types, including coaxial cable, strip line, or twisted pair, with impedances ranging from 50 to 500 Ω. This component is compatible with standard TTL logic and operates from a single 5V supply.

 

Key electrical characteristics include a high-speed propagation delay of 20 ns maximum at a 15 pF load capacitance. The device provides a 2.4V output at an IOH of -75 mA. Its uncommitted emitter-follower output structure is suitable for party-line applications, enabling wired-OR logic configurations. Output short-circuit protection is integrated via an internal clamping network.

 

The SN75121N is characterized for operation within an ambient temperature range of 0°C to 70°C. It is supplied in a 16-pin PDIP package, designed for through-hole mounting. The gating inputs are configured in conventional TTL, allowing for controlled power-up and power-down sequences to prevent line noise introduction.

SN75121N Quick Information

Product Type: Dual Line Driver
Series: SN75121N
Canonical Name: SN75121N Dual Line Driver
Subcategory: Drivers, Receivers, Transceivers

SN75121N Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

SN75121N Estimated Pricing

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1+ $3.28 $3.28

Estimated market price range - modelled values for guidance only, not live distributor offers.

SN75121N Features

  • Dual line driver for data transmission.
  • Operates over 50 to 500 Ohm lines.
  • TTL compatible with single 5V supply.
  • High-speed propagation delay of 20ns.
  • Through-hole mounting in 16-PDIP package.

SN75121N Applications

  • Suitable for digital data transmission lines.
  • Used in party-line communication systems.
  • Ideal for coaxial cable and twisted pair wiring.
  • Compatible with TTL logic and 5V systems.
  • Designed for high-speed signal driving applications.

SN75121N FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating temperature range for the SN75121N?

The operating temperature range is 0°C to 70°C.

What is the supply voltage for the SN75121N?

The operating voltage is 4.75V to 5.25V.

What type of package is the SN75121N supplied in?

The SN75121N is supplied in a 16-PDIP package.

How is the SN75121N mounted?

The SN75121N is designed for through-hole mounting.

What is the propagation delay of the SN75121N?

The high-speed propagation delay is a maximum of 20 ns at a 15 pF load.

What is the output voltage at a specific current for the SN75121N?

The output is 2.4V at an IOH of -75 mA.

What line impedances can the SN75121N drive?

The SN75121N is designed for digital data transmission over lines with impedances from 50 to 500 Ω.

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