Texas Instruments TLC551CP
- Part Number:
- TLC551CP
- Manufacturer:
- Texas Instruments
- Ventron No:
- 5217530-TLC551CP
- Description:
- LinCMOS™ Timer
- Datasheet:
- tlc551
- FunctionGeneral-purpose timer
- Iq (typ) (mA)0.17
- RatingCatalog
- Operating temperature range (°C)0 to 70
- Supply voltage (max) (V)15
- Supply voltage (min) (V)1
The TLC551 is a monolithic timing circuit fabricated using the TI LinCMOSTM
timer is fully compatible with CMOS, TTL, and MOS logic and operates at frequencies up to 2 MHz. Compared to the NE555 timer, this device uses smaller timing capacitors because of its high input impedance. As a result, more accurate time delays and oscillations are possible. Power consumption is low across the full range of power supply voltage.
Like the NE555, the TLC551 has a trigger level equal to approximately one-third of the supply voltage and a threshold level equal to approximately two-thirds of the supply voltage. These levels can be altered by use of the control voltage terminal (CONT). When the trigger input (TRIG) falls below the trigger level, the flip-flop is set and the output goes high. If TRIG is above the trigger level and the threshold input (THRES) is above the threshold level, the flip-flop is reset and the output is low. The reset input (RESET) can override all other inputs and can be used to initiate a new timing cycle. If RESET is low, the flip-flop is reset and the output is low. Whenever the output is low, a low-impedance path is provided between DISCH and GND. All unused inputs should be tied to an appropriate logic level to prevent false triggering.
While the CMOS output is capable of sinking over 100 mA and sourcing over 10 mA, the TLC551 exhibits greatly reduced supply-current spikes during output transitions. This minimizes the need for the large decoupling capacitors required by the NE555.
The TLC551C is characterized for operation from 0°C to 7
Standard Timer Single 0掳C 70掳C 8-Pin PDIP Tube
IC OSC SINGLE TIMER 1.8MHZ 8-DIP
Ic, Timer, Smd, Pdip8, 551; Frequency:1.8Mhz; Supply Voltage Min:1V; Supply Voltage Max:15V; Digital Ic Case:Dip; No. Of Pins:8Pins; Operating Temperature Min:-55°C; Operating Temperature Max:125°C; Product Range:-; Msl:-; Svhc:No Rohs Compliant: Yes |TEXAS INSTRUMENTS TLC551CP
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