Toshiba 74VHC221AFT Dual Monostable Multivibrator 8mA, 16-Pin TSSOP

  • RS Stock No. 171-3330
  • Mfr. Part No. 74VHC221AFT
  • Manufacturer Toshiba
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

The 74VHC123A/221AFT 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). A low level at the CLR input breaks this state. Limits for CX and RX are:External capacitor, CX: No limit External resistor, RX: VCC = 2.0 V more than 5 kΩ CC ≥ 3.0 V more than 1 kΩ An input protection circuit ensures that 0 to 5.5 V can be applied to the input pins without regard to the supply voltage. This device can be used to interface 5 V to 3 V systems and two supply systems such as battery back up. This circuit prevents device destruction due to mismatched supply and input voltages

Wide operating temperature range: Topr = -40 to 125 
High speed: Propagation delay time = 8.1 ns (typ.) at VCC = 5 V
Low power dissipation:
Standby state: 4.0 μA (max) at Ta = 25 
Active state: 750 μA (max) at Ta = 25 
High noise immunity: VNIH = VNIL = 28 % VCC (min)
Power-down protection is provided on all inputs.
Balanced propagation delays: tPLH ≈ tPHL
Wide operating voltage range: VCC(opr) = 2.0 V to 5.5 V
Pin and function compatible with 74HC123,74HC221 type

Specifications
Attribute Value
Logic Family 74VHC
Logic Function Monostable Multivibrator
Number of Elements per Chip 27
Maximum High Level Output Current -8mA
Maximum Low Level Output Current 8mA
Minimum Pulse Width 5 ns
Maximum Propagation Delay Time @ Maximum CL 24.5ns
Maximum Quiescent Current 80µA
Mounting Type Surface Mount
Package Type TSSOP
Pin Count 16
Dimensions 5 x 4.4 x 1mm
Height 1mm
Length 5mm
Maximum Operating Supply Voltage 5.5 V
Width 4.4mm
Minimum Operating Supply Voltage 2 V
Minimum Operating Temperature -40 °C
Propagation Delay Test Condition 50pF
Maximum Operating Temperature +125 °C
Automotive Standard AEC-Q100
Temporarily out of stock - back order for despatch 21/04/2020, delivery within 4 working days from despatch date
Price Each (On a Reel of 2500)
MYR 0.524
units
Per unit
Per Reel*
2500 - 2500
MYR0.524
MYR1,310.00
5000 +
MYR0.486
MYR1,215.00
*price indicative
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