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Home - Analog & Interface Products - Power Management - CPU/System Supervisors - TC1270 Device, download datasheet

Download Datasheets TC1270 Device


The TC1270 and TC1271 are cost-effective system supervisor circuits designed to monitor VCC in digital systems and provide a reset signal to the host processor when necessary. A manual reset input is provided to override the reset monitor, and is suitable for use as a push-button reset. No external components are required. The reset output is driven active within 20sec (4sec for F version) of VCC falling through the reset voltage threshold. RESET is maintained active for a minimum of 140msec after VCC rises above the reset threshold. The TC1271 has an active-high RESET output while the TC1270 has an active-low RESET output. The output of the TC1270 is valid down to VCC = 1V. Both devices are available in a 4-Pin SOT-143 package. The TC1270/1 are optimized to reject fast transient glitches on the VCC line. Low supply current of 7A (VCC = 3.3V) makes these devices suitable for battery powered applications.

Datasheet and Other Documentation

Detailed Content

Lit. Number

Download

 

TC1270/71 Datasheet

21381a

Download TC1270/71 Datasheet

Status

In Production

Specification Chart

Vcc Range (V)

Reset Voltages

Reset Type

Output

Min. Reset Pulse Width (ms)

Typical Supply Current (A)

1.2 to 5.5

4.63,4.38,3.08,2.93,2.63,1.75

Active low

CMOS push/pull

280

7

Additional Features

Precision VCC Monitor for 1.8V, 2.7V, 3.0V, 3.3V, 5.0V
Nominal Supplies
Manual Reset Input, 140msec Minimum RESET
RESET Output Duration
RESET Output Valid to VCC = 1.0V (TC1270)
VCC Transient Immunity
No External Components
Replacement for MAX811/812 and Offers a Lower Threshold Voltage Option

Package Options

4 SOT-143(OT)



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