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

  • RS Stock No. 171-3459
  • Mfr. Part No. 74VHC221AFT
  • Manufacturer Toshiba
Product overview and 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

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
Minimum Operating Temperature -40 °C
Width 4.4mm
Minimum Operating Supply Voltage 2 V
Automotive Standard AEC-Q100
Maximum Operating Supply Voltage 5.5 V
Maximum Operating Temperature +125 °C
Propagation Delay Test Condition 50pF
2400 In stock for delivery within 3 working days
Price Each (In a Pack of 50)
HK$ 1.613
(exc. GST)
Per unit
Per Pack*
50 - 50
100 - 450
500 - 950
1000 +
*price indicative
Packaging Options:
Related Products
Permanent pull loops for AMP-LATCH IDC ribbon cable ...
Permanent pull loops for AMP-LATCH IDC ribbon cable receptacle and pin connectors. These pull loops are made from natural colour PVC, 94-VTM-1 rating. For details of connectors that these pull loops can be used with please see additional data table. ...
These connectors provide fast reliable mass termination to ...
These connectors provide fast reliable mass termination to Speedbloc® ribbon cable without the need to separate individual wires before assembly. No cable stripping, soldering or expensive tooling is requiredFully compatible with conventional D connectors and accepts all standard locking systemsLow ...
From ERNI, this TMC series of sub-miniature d-built ...
From ERNI, this TMC series of sub-miniature d-built connectors are designed for use with ribbon cables. With 9, 15, 25, 37 pin connectors available, the series also offers appropriate strain relief and connector screws for reliable interfacing. The trapezoidal design ...
From 3M, this range of 101 Series Mini ...
From 3M, this range of 101 Series Mini D Ribbon (MDR) Connectors are .050" IDC Wiremount Shielded Plugs. The design of the 101 Series Mini D Ribbon (MDR) Connectors, provides IDC terminations for the individual cores and wiper-on-wiper contact. The ...