DUAL MONOSTABLE MULTIVIBRATOR
TC74VHC123,221AF/AFN/AFT/AFK
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74VHC123AF,TC74VHC123AFN,TC74V...
Description
TC74VHC123,221AF/AFN/AFT/AFK
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74VHC123AF,TC74VHC123AFN,TC74VHC123AFT,TC74VHC123AFK TC74VHC221AF,TC74VHC221AFN,TC74VHC221AFT,TC74VHC221AFK
Dual Monostable Multivibrator TC74VHC123AF/AFN/AFT/AFK Retriggerble TC74VHC221AF/AFN/AFT/AFK Non-Retriggerble
Note: xxxFN (JEDEC SOP) is not available in Japan.
TC74VHC123AF, TC74VHC221AF
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). 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 VCC ≥ 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.
Features
High speed: tpd = 8.1 ns (typ.) at VCC = 5 V Low power dissipation
Standby state: 4 μA (max...
Similar Datasheet