Texas Instruments TPUL2T323/TPUL2T323-Q1 Monostable Multivibrators
Texas Instruments TPUL2T323/TPUL2T323-Q1 Dual Monostable Multivibrators contain two independent extended-pulse-width RC-configurable retriggerable monostable multivibrators designed for 1.5V to 5.5V operation. The output pulse duration is configured by selecting external resistance and capacitance values, resulting in an approximate output pulse width of two ≅ 1000 × R × C.
The Texas Instruments TPUL2T323/TPUL2T323-Q1 features three inputs, allowing for rising edge (T) and falling edge (/T) triggers and a clear input (/CLR) that can be used asynchronously to stop an active output pulse. All inputs include Schmitt-trigger architecture, enabling slow input transition rates and enhancing noise immunity. The TPUL2T323-Q1 devices are AEC-Q100 qualified for automotive applications.
Features
- RC configurable from 10ms to 880s
- Single-supply voltage translator
- Up translation
- 1.2V to 1.8V
- 1.5V to 2.5V
- 1.8V to 3.3V
- 3.3V to 5.0V
- Down translation
- 5.0V, 3.3V, 2.5V to 1.8V
- 5.0V, 3.3V to 2.5V
- 5.0V to 3.3V
- Up translation
- Extended pulse width functionality reduces the capacitor value required for long pulse widths by a factor of 1000
- For pulses less than 10ms, use
- 1% typical, 10% maximum pulse width variation
- Wide operating range of 1.5V to 5.5V
- Inputs accept voltages up to 5.5V
- TTL-compatible with 4.5V to 5.5V supply
- Schmitt-trigger architecture on all inputs
Applications
- Demodulate a digital Amplitude Shift Keying (ASK) signal
- Reset a system for a fixed period of time
- Generate a positive fixed-width digital pulse
- Detect a digital signal rising edge
- Detect a digital signal falling edge
- Debounce a switch
Datasheets
Functional Block Diagram
Associated Multivibrators
Texas Instruments TPUL2G123/-Q1 Dual RC-Timed Mono Multivibrators
Features two independent devices designed for 1.5V to 5.5V operation.