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TC74VHC221AFK - Dual Monostable Multivibrator

Download the TC74VHC221AFK datasheet PDF. This datasheet also covers the TC74VHC123 variant, as both devices belong to the same dual monostable multivibrator family and are provided as variant models within a single manufacturer datasheet.

General Description

2.

The TC74VHC123A/221A are high speed CMOS MONOSTABLE MULTIVIBRATOR fabricated with silicon gate C2MOS technology.

Key Features

  • (Note) (1) High speed: Propagation delay time = 8.1 ns (typ. ) at VCC = 5.0 V (2) Low power dissipation: Standby state: 4.0 µA (max) at Ta = 25  Active state: 750 µA (max) at Ta = 25  (3) High noise immunity: VNIH = VNIL = 28 % VCC (min) (4) Power-down protection is provided on all inputs. (5) Balanced propagation delays: tPLH ≈ tPHL (6) Wide operating voltage range: VCC(opr) = 2.0 to 5.5 V (7) Pin and function compatible with TC74HC123A,TC74HC221A type. Note: In the case of using only one circ.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (TC74VHC123_ToshibaSemiconductor.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Toshiba

Part Number Description
TC74VHC221AF Dual Monostable Multivibrator
TC74VHC221AFN DUAL MONOSTABLE MULTIVIBRATOR
TC74VHC221AFT DUAL MONOSTABLE MULTIVIBRATOR
TC74VHC20F Dual 4-Input NAND Gate
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
TC74VHC123AF/AFK,TC74VHC221AF/AFK CMOS Digital Integrated Circuits Silicon Monolithic TC74VHC123AF,TC74VHC123AFK, TC74VHC221AF,TC74VHC221AFK 1. Functional Description • Dual Monostable Multivibrator TC74VHC123AF/AFK: Retriggerable TC74VHC221AF/AFK: Non-Retriggerable 2. General The TC74VHC123A/221A are high speed CMOS MONOSTABLE MULTIVIBRATOR fabricated with silicon gate C2MOS technology. There are two trigger inputs, A input (negative edge), and B input (positive edge). These inputs are valid for a slow rise/fall time signal (tr = tf = 1 s) as they are schmitt trigger inputs. This device may also be triggered by using CLR input (positive edge). After triggering, the output stays in a MONOSTABLE state for a time period determined by the external resistor and capacitor (RX, CX).