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TC1275 Datasheet(PDF) 1 Page - Microchip Technology |
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TC1275 Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 12 page  © 2002 Microchip Technology Inc. DS21383B-page 1 TC1275/TC1276/TC1277 Features • Precision VCC Monitor for 3.3V Systems • 100msec Minimum RESET, RESET Output Duration • Output Valid to VCC =1.2V •VCC Transient Immunity • Small 3-Pin SOT-23B Package • No External Components Applications • Computers • Embedded Systems • Battery Powered Equipment • Critical µP Power Supply Monitoring Device Selection Table NOTE: “x” denotes a suffix for VCC threshold (see table below). Package Type General Description The TC1275/TC1276/TC1277 are cost-effective system supervisor circuits designed to monitor VCC in digital systems and provide a reset signal to the host processor when necessary. No external components are required. The reset output is driven active within 20 µsec of VCC falling through the reset voltage threshold. RESET is maintained active for a minimum of 100msec after VCC rises above the reset threshold. The TC1277 has an active-high RESET output while the TC1275 and TC1276 have an active-low RESET output. TC1275 and TC1277 each have a complimentary output while the TC1276 has an open drain output. The output of the TC1275 and TC1276 is valid down to VCC =1.2V. The TC1277 is valid down to VCC = 1.8V. All three devices are available in a 3-Pin SOT-23B package. The TC1275/TC1276/TC1277 devices are optimized to reject fast transient glitches on the VCC line. Typical Operating Circuit Part Number Order Package Temp. Range TC1275-xENB Complimentary 3-Pin SOT-23B -40°C to +85°C TC1276-xENB Open Drain 3-Pin SOT-23B -40°C to +85°C TC1277-xENB Complimentary 3-Pin SOT-23B -40°C to +85°C Suffix Reset VCC Threshold (V) 53.06 10 2.88 20 2.55 VCC RESET *(RESET) GND TC1275-xENB TC1276-xENB TC1277-xENB 1 2 3 NOTE: 3-Pin SOT-23B is equivalent to JEDEC TO-236 *( ) is for TC1277 3-Pin SOT-23B TC1275 VCC VCC VCC RESET RESET Input GND GND Processor 1 2 3 3-Pin Reset Monitors for 3.3V Systems |
Similar Part No. - TC1275 |
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Similar Description - TC1275 |
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