Mfr Part #:

CD74HC221E

The Texas Instruments CD74HC221E is a dual monostable multivibrator featuring 2 channels and a propagation delay of 18 ns. It operates within a voltage range of 2V to 6V and a temperature range of -55°C to 125°C.

✓ Total Stock: 3,665 pcs

$ Price Range: $0.37

CD74HC221E Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Components Technology Group, Inc. ✓ Non-Authorised Inventory information	3,665 pcs On Request	3665 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

CD74HC221E Description

Short technical summary and product information.

The CD74HC221E from Texas Instruments is a high-speed CMOS logic dual monostable multivibrator. It features two independent circuits, each capable of producing a precisely controlled output pulse width determined by external resistor and capacitor components.

Key electrical characteristics include a propagation delay of 18 ns, an operating voltage range of 2V to 6V, and a wide operating temperature range from -55°C to 125°C. The device supports standard CMOS input types and push-pull output types, with specified output currents (IOL/IOH) of 5.2mA. It also includes Schmitt trigger inputs on the B inputs for improved noise immunity.

This multivibrator is available in a 16-PDIP through-hole package, making it suitable for breadboarding and through-hole PCB assembly. The "HC" designation indicates its high-speed CMOS technology family, offering significant power reduction compared to LSTTL logic.

Applications for the CD74HC221E include pulse generation, timing circuits, and waveform shaping where precise and stable pulse durations are required. Its dual-channel design allows for independent timing control of two separate pulse outputs.

CD74HC221E Quick Information

Product Type: Dual Monostable Multivibrator

Series: CD74HC

Canonical Name: Texas Instruments CD74HC221E Dual Monostable Multivibrator

Subcategory: Multivibrators

CD74HC221E Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

CD74HC221E Estimated Pricing

Qty	Low	High
1+	$0.37	$0.37

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

CD74HC221E Features

Dual monostable multivibrator with reset.
High-speed CMOS logic family (HC).
Wide operating voltage from 2V to 6V.
Wide operating temperature range -55°C to 125°C.
18 ns propagation delay.

CD74HC221E Applications

Pulse generation and timing circuits.
Waveform shaping applications.
Control and sequencing logic.
Delay generation circuits.

CD74HC221E FAQs

7 frequently asked questions generated from this part’s specifications.

What is the operating voltage range of the CD74HC221E?

2V to 6V.

What is the package type of the CD74HC221E?

16-PDIP (16-DIP, 0.300" body width) with through-hole mounting.

What is the operating temperature range?

-55°C to 125°C.

What is the propagation delay of the CD74HC221E?

18 ns.

What logic type is the CD74HC221E?

Monostable multivibrator.

How many channels does the CD74HC221E have?

2 channels.

Does the CD74HC221E have Schmitt trigger inputs?

Yes.

Category	Multivibrators
Manufacturer Name	Texas Instruments
Current	5.2mA, 5.2mA
Features	High speed (tpd 10-50ns), Positive input clamp diode
Independent Circuits	2
Input Type	Standard CMOS
Logic Type	Monostable
Mounting Type	Through Hole
Number of Channels	2
Operating Temperature	-55°C ~ 125°C
Operating Temperature Range	-55°C to 125°C
Operating Voltage	2V ~ 6V
Output Type	Push-Pull
Propagation Delay	18 ns
SVHC Present	Not Present
Schmitt Trigger Input	Yes
Supplier Device Package	16-PDIP
Supplier Package	16-PDIP
Supply Current	80 µA
Voltage	2 V ~ 6 V