Congratulations On Your Successful Submission
Submission Failure
SN54221J
Dual Monostable Multivibrators With Schmitt-trigger Inputs
SN54221J
Dual Monostable Multivibrators With Schmitt-trigger Inputs
-
Manufacturer Part # : SN54221J
-
Package/Case: CDIP-16
-
Brand: Texas Instruments
-
Product Categories : Multivibrators
Quality Assurance
Quality Assurance
All parts procured from our supply chain network undergo a rigorous incoming inspection process. This meticulous inspection ensures that the parts received by our customers are authentic and meet the required standards. Additionally, we maintain detailed records of these inspections to ensure transparency and traceability throughout the supply chain.
Certification
We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.
Shipping & Payment
Shipping & Payment
About Shipping
We generally ship orders within a few business days through reliable shipping carriers such as FedEx, SF, UPS, or DHL. We also have support for other shipping methods. If you would like to inquire about specific shipping details or costs, please don't hesitate to reach out to us.
About Payment
We accept various payment methods, including VISA, MasterCard, UnionPay, Western Union, PayPal, and other channels.
If you have a specific payment method in mind or would like to inquire about rates and other details, please feel free to contact us.
WireTransfer
Paypal
CreditCard
WesternUnion
MoneyGram
Service & Packaging
Service & Packaging
About After Sales Service
All Parts Extended Quality Guarantee
Initiate the application within 90 days from the shipment date.
Confirm the return or exchange with our staff.
Maintain the goods in their original condition as received.
Lastly, please note that the eligibility for return or exchange of goods is subject to an assessment of the actual condition of the returned items. We will evaluate the received goods before finalizing the return or exchange process. If you have any inquiries or require further assistance regarding returns or exchanges, please don't hesitate to contact us at [email protected]
About packaging
Regarding packaging, our products are carefully packed in anti-static bags to provide ESD anti-static protection. The outer packaging is durable with secure closure. We support various packaging methods such as Tape and Reel, Cut Tape, Tube, or Tray.
Example
Tape and Reel
Cut Tape
Tube or Tray
SN54221J DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
The '221 and 'LS221 devices are monolithic dual multivibrators with performance characteristics virtually identical to those of the '121 devices. Each multivibrator features a negative-transition- triggered input and a positive-transition-triggered input, either of which can be used as an inhibit input.
Pulse triggering occurs at a particular voltage level and is not directly related to the transition time of the input pulse. Schmitt-trigger input circuitry (TTL hysteresis) for B input allows jitter-free triggering from inputs with transition rates as slow as 1 V/s, providing the circuit with excellent noise immunity, typically of 1.2 V. A high immunity to VCC noise, typically of 1.5 V, is also provided by internal latching circuitry.
Once fired, the outputs are independent of further transitions of the A and B inputs and are a function of the timing components, or the output pulses can be terminated by the overriding clear. Input pulses can be of any duration relative to the output pulse. Output pulse length can be varied from 35 ns to the maximums shown in the above table by choosing appropriate timing components. With Rext = 2 k and Cext = 0, an output pulse typically of 30 ns is achieved, which can be used as a dc-triggered reset signal. Output rise and fall times are TTL compatible and independent of pulse length. Typical triggering and clearing sequences are shown as a part of the switching characteristics waveforms.
Pulse-width stability is achieved through internal compensation and is virtually independent of VCC and temperature. In most applications, pulse stability is limited only by the accuracy of external timing components.
Jitter-free operation is maintained over the full temperature and VCC ranges for more than six decades of timing capacitance (10 pF to 10 µF) and more than one decade of timing resistance (2 k can be used. Also, the range of jitter-free output pulse widths is extended if VCC is held to 5 V and free-air temperature is 25°C. Duty cycles as high as 90% are achieved when using maximum recommended RT. Higher duty cycles are available if a certain amount of pulse-width jitter is allowed.
The variance in output pulse width from device to device typically is less than ±0.5% for given external timing components. An example of this distribution for the '221 is shown in Figure 3. Variations in output pulse width versus supply voltage and temperature for the '221 are shown in Figures 4 and 5, respectively.
Pin assignments for these devices are identical to those of the SN54123/SN74123 or SN54LS123/SN74LS123 so that the '221 or 'LS221 devices can be substituted for those products in systems not using the retrigger by merely changing the value of Rext and/or Cext; however, the polarity of the capacitor must be changed.
Key Features
- Signal integrity preserved
- Durability tested for extreme conditions
- Compact design with high performance
- Fully compliant with industry standards
- Simplified integration supported
- Innovative architecture showcased
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Number of channels | 2 | Supply voltage (min) (V) | 4.75 |
| Supply voltage (max) (V) | 5.25 | Technology family | TTL |
| Input type | Schmitt-Trigger | Output type | Push-Pull |
| Supply current (µA) | 36000 | IOL (max) (mA) | 16 |
| IOH (max) (mA) | -0.8 | Features | Standard speed (tpd > 50ns) |
| Operating temperature range (°C) | -55 to 125 | Rating | Military |
Recommend Parts
-
![SN74HC595PWR]()
Counter Shift Registers 8-Bit Shift Register
Brand: Texas Instruments Package/Case: TSSOP (PW)-16
7,828 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![SN7407N]()
This PDIP-14 packaged component is designed for use as a buffer, driver, or transceiver in electronic circuits
Brand: Texas Instruments Package/Case: PDIP (N)-14
3,124 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![SN7407DR]()
2,098 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![SN7406DR]()
7,040 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![SN74HC14PWR]()
5,043 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![SN74HC14N]()
5,106 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![SN54LS08J]()
Logic Gates Military 4-ch, 2-input, 4.5-V to 5.5-V bipolar AND gates 14-CDIP -55 to 125
Brand: Texas Instruments Package/Case: CDIP (J)-14
4,601 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![SN74LS00N]()
5,587 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![SN5407J]()
3,097 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![SN5404J]()
7,285 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![SN74LVC1G126DBVR]()
Buffers & Line Drivers Single Bus Buffer
Brand: Texas Instruments Package/Case: SOT-23 (DBV)-5
6,705 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![SN74AHC1G08DCKR]()
3,005 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![SN74HC573AN]()
3,858 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![SN74LV273APWR]()
4,694 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![SN74LVTH244APWR]()
Buffers & Line Drivers Tri-State ABT Octal
Brand: Texas Instruments Package/Case: TSSOP (PW)-20
5,611 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
![SN74LVC1G74DCTR]()
3,393 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
