■ 제품필수정보

제조사	Toshiba
제조사품명	74VHC221AFT
간략설명	Toshiba 74VHC221AFT, 27 Dual Monostable Multivibrator 8mA, 16-Pin TSSOP

■ 제품사양

Logic Family = 74VHC Logic Function = Monostable Multivibrator
칩당 요소 수 = 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
장착형태 = Surface Mount
패키지 = TSSOP
핀수 = 16
크기 = 5 x 4.4 x 1mm
높이 = 1mm Length = 5mm Maximum Operating Supply Voltage = 5.5 V 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 k??CC ??3.0 V more than 1 k??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 voltagesWide 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