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TLC7733M

具有可編程時(shí)間延遲的 3.3V 系統(tǒng)的單電源監(jiān)控器; ? Power-On Reset Generator\n? Automatic Reset Generation After Voltage Drop\n? Precision Voltage Sensor\n? Temperature-Compensated Voltage Reference\n? Programmable Delay Time by External Capacitor\n? Supply Voltage Range . . . 2 V to 6 V\n? Defined RESET Output from VDD ≥ 1 V\n? Power-Down Control Support for Static RAM With Battery Backup\n? Maximum Supply Current of 16 μA\n? Power Saving Totem-Pole Outputs\n? Temperature Range . . . Up to ?55°C to 125°C;

The TLC77xx family of micropower supply voltage supervisors provide reset control, primarily in microcomputer and microprocessor systems.\nDuring power-on, RESET is asserted when VDD reaches 1 V. After minimum VDD (≥ 2 V) is established, the circuit monitors SENSE voltage and keeps the reset outputs active as long as SENSE voltage (VI(SENSE)) remains below the threshold voltage. An internal timer delays return of the output to the inactive state to ensure proper system reset. The delay time, td, is determined by an external capacitor:\n td = 2.1 × 104 × CT\nWhere\nCT is in faradstd is in seconds\nExcept for the TLC7701, which can be customized with two external resistors, each supervisor has a fixed sense threshold voltage set by an internal voltage divider. When SENSE voltage drops below the threshold voltage, the outputs become active and stay in that state until SENSEvoltage returns above threshold voltage and the delay time, td, has expired.\n In addition to the power-on-reset and undervoltage-supervisor function, the TLC77xx adds power-down control support for static RAM. When CONTROL is tied to GND, RESET will act as active high. The voltage monitor contains additional logic intended for control of static memories with battery backup during power failure. By driving the chip select (CS) of the memory circuit with the RESET output of the TLC77xx and with the CONTROL driven by the memory bank select signal (CSH1) of the microprocessor, the memory circuit is automatically disabled during a power loss. (In this application the TLC77xx power has to be supplied by the battery.)\nThe TLC77xxI is characterized for operation over a temperature range of ?40°C to 85°C; the TLC77xxQ is characterized for operation over a temperature range of ?40°C to 125°C; and the TLC77xxM is characterized for operation over the full Military temperature range of ?55°C to 125°C.\n The 3×3 mm DRB package is also available as a non-magnetic package for medical imaging application.\n \n

TLC7733M

MICROPOWER SUPPLY VOLTAGE SUPERVISORS

TLC7733M

Micropower Supply Voltage Supervisors

TLC7733MFK

MICROPOWER SUPPLY VOLTAGE SUPERVISORS

TLC7733MFKB

Micropower Supply Voltage Supervisors

TLC7733MFKB

Micropower Supply Voltage Supervisors

TLC7733MFKB

Micropower Supply Voltage Supervisors

TLC7733MFKB

Micropower Supply Voltage Supervisors

TLC7733MFKB

Micropower Supply Voltage Supervisors

TLC7733MJG

MICROPOWER SUPPLY VOLTAGE SUPERVISORS