Download Datasheets TC1270 Device 
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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



TC1270/71 Datasheet


Download TC1270/71 Datasheet


In Production

Specification Chart

Vcc Range (V)

Reset Voltages

Reset Type


Min. Reset Pulse Width (ms)

Typical Supply Current (A)

1.2 to 5.5


Active low

CMOS push/pull



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), 2008-2015 - download datasheets