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5962-8950302CA +BOM

Low-Power Dual LinCMOS™ Timer

Hersteller:

Texas Instruments, Inc
Herstellerteil #:

5962-8950302CA
Datenblatt:

5962-8950302CA Datenblatt (PDF)
Function:

General-purpose timer
Iq (typ) (mA):

0.13
Rating:

Military
Operating Temperature Range (°C):

-55 to 125
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Email: [email protected]

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Tel: +852 95804164

5962-8950302CA Allgemeine Beschreibung

The TLC556 series are monolithic timing circuits fabricated using the TI LinCMOS^TM process, which provides full compatibility with CMOS, TTL, and MOS logic and operates at frequencies up to 2MHz. Accurate time delays and oscillations are possible with smaller, less-expensive timing capacitors than the NE556 because of the high input impedance. Power consumption is low across the full range of power supply voltages.

Like the NE556, the TLC556 has a trigger level approximately one-third of the supply voltage and

a threshold level approximately two-thirds of the supply voltage. These levels can be altered by use of the control voltage terminal. When the trigger input falls below the trigger level, the flip-flop is set and the output goes high. If the trigger input is above the trigger level and the threshold input is above the threshold level, the flip-flop is reset and the output is low. The reset input can override all other inputs and can be used to initiate a new timing cycle. If the reset input is low, the flip-flop is reset and the output is low. Whenever the output is low, a low-impedance path is provided between the discharge terminal and ground.

While the CMOS output is capable of sinking over 100 mA and sourcing over 10 mA, the TLC556 exhibits greatly reduced supply-current spikes during output transitions. This minimizes the need for the large decoupling capacitors required by the NE556.

These devices have internal electrostatic-discharge (ESD) protection circuits that prevent catastrophic failures at voltages up to 2000 V as tested under MIL-STD-883C, Method 3015. However, care should be exercised in handling these devices, as exposure to ESD may result in degradation of the device parametric performance.

All unused inputs should be tied to an appropriate logic level to prevent false triggering.

The TLC556C is characterized for operation from 0°C to 70°C. The TLC556I is characterized for operation from -40°C to 85°C. The TLC556M is characterized for operation over the full military temperature range of -55°C to 125°C

Hauptmerkmale

Very Low Power Consumption.2 mW Typ at V_DD = 5 V
Capable of Operation in Astable Mode
CMOS Output Capable of Swinging Rail to Rail
High Output-Current Capability
Sink 100 mA Typ
Source 10 mA Typ
Output Fully Compatible With CMOS, TTL, and MOS
Low Supply Current Reduces Spikes During Output Transitions
Single-Supply Operation From 2 V to 15 V
Functionally interchangeable With the NE556; Has Same Pinout

LinCMOS is a trademark of Texas Instruments Incorporated.

Spezifikationen

Function	General-purpose timer	Iq (typ) (mA)	0.13
Rating	Military	Operating temperature range (°C)	-55 to 125
Supply voltage (max) (V)	15	Supply voltage (min) (V)	2

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