TC1271RERCTR Microchip Technology, TC1271RERCTR Datasheet

IC RESET MONITOR 2.63V SOT143-4

TC1271RERCTR

Manufacturer Part Number
TC1271RERCTR
Description
IC RESET MONITOR 2.63V SOT143-4
Manufacturer
Microchip Technology
Type
Simple Reset/Power-On Resetr
Datasheet

Specifications of TC1271RERCTR

Number Of Voltages Monitored
1
Output
Push-Pull, Totem Pole
Reset
Active High
Reset Timeout
140 ms Minimum
Voltage - Threshold
2.63V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-143, SOT-143B, TO-253AA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TC1271RERCTR
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Features:
• Precision V
• Manual Reset Input
• 140 ms Minimum RESET, Reset Output Duration
• RESET Output Valid to V
• Low 7 µA Supply Current
• V
• Small 4-Pin SOT-143 Package
• No External Components
• Replacement for MAX811/812 and Offers a Lower
Applications:
• Computers
• Embedded Systems
• Battery Powered Equipment
• Critical µP Power Supply Monitoring
Typical Operating Circuit
© 2007 Microchip Technology Inc.
V
and 5.0V Nominal Supplies
Threshold Voltage Option
CC
CC
Button
Push
Transient Immunity
CC
MR
Monitor for 1.8V, 2.7V, 3.0V, 3.3V
TC1270
GND
V
CC
RESET
CC
= 1.0V (TC1270)
4-Pin Reset Monitors
Reset
Input
(Active Low)
Processor
GND
V
CC
TC1270/TC1271
General Description
The TC1270 and TC1271 are cost-effective system
supervisor circuits designed to monitor V
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 20 µs (4 µs for
F version) of V
threshold. Reset is maintained active for a minimum of
140 ms after V
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 V
are available in a 4-Pin SOT-143 package.
The TC1270/TC1271 devices are optimized to reject
fast transient glitches on the V
current of 7 µA (V
suitable for battery powered applications.
Package Type
TC1270 RESET
TC1271 (RESET)
CC
CC
rises above the reset threshold. The
GND
CC
falling through the reset voltage
= 3.3V) makes these devices
2
1
TC1270
TC1271
CC
CC
= 1V. Both devices
line. Low supply
DS21381D-page 1
4
CC
3
V
in digital
MR
CC

Related parts for TC1271RERCTR

TC1271RERCTR Summary of contents

Page 1

... CC MR RESET Push Button TC1270 GND © 2007 Microchip Technology Inc. TC1270/TC1271 4-Pin Reset Monitors General Description The TC1270 and TC1271 are cost-effective system supervisor circuits designed to monitor V 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 ...

Page 2

... -40°C to +85°C A TC127_R +25° -40°C to +85°C A TC127_F +25° -40°C to +85° – 125 mV L/M/R/S/T TH(MAX) V > TC127_L/M CC TH(MAX) V > TC127_R/S/T/F CC TH(MAX) V > TC127_L/M CC TH(MAX) V > TC127_R/S/T/F CC TH(MAX 150 µA; SOURCE ≤ TH(MIN) © 2007 Microchip Technology Inc. ...

Page 3

... RESET Output Voltage Low OL (TC1270) V RESET Output Voltage High OH (TC1270) Note 1: Production testing done RESET output for TC1270, Reset output for TC1271. © 2007 Microchip Technology Inc. = 3.3V for T/S versions +25°C. (Note 1). A Min Typ Max Units — — 0.2 V — ...

Page 4

... Normalized Reset Threshold vs. Temperature 1.0030 1.0020 1.0010 1.0000 TC127xL/M 0.9990 0.9980 0.9970 0.9960 0.9950 0.9940 60 -40 85 Supply Current vs.Temperature (No Load, TC127xL/ - TEMPERATURE (°C) Power-Down Reset Delay vs. Temperature (TC127xL/M/R/S/T) L 100 200 mV OD R/S 200 100 - TEMPERATURE (° - TEMPERATURE (°C) © 2007 Microchip Technology Inc. ...

Page 5

... CC TRIP device will remain in Reset for the Reset delay timer (T ). After that time expires, the RESET pin will be RST driven to the low state. © 2007 Microchip Technology Inc. Table 3-1. Description Ground RESET output remains low while V CC and for at least 140 ms min. after V ...

Page 6

... RESET = 1.0V. CC GND FIGURE 4-3: Reset I/O. (Figure 4-2). This (100 kΩ will be suitable for most TC1270 RESET R1 100k GND Ensuring RESET Valid to Buffered RESET Buffer To Other System Components V CC μP 4.7k RESET GND Interfacing to Bidirectional © 2007 Microchip Technology Inc. ...

Page 7

... Taping Form Device Marking Pin 1 Standard Reel Component Orientation Package Carrier Width (W) 4-Pin SOT-143 8 mm © 2007 Microchip Technology Inc. TC1270/TC1271 Part Number TC1270LERCTR TC1270MERCTR TC1270TERCTR TC1270SERCTR TC1270RERCTR TC1270FERCTR Part Number TR TC1271LERC TR TC1271MERC ...

Page 8

... L1 0.54 REF φ 0° c 0.08 b1 0. NOM MAX 4 – 1.22 0.90 1.07 – 0.15 – 2.64 1.30 1.40 2.90 3.05 0.50 0.60 – 8° – 0.20 – 0.94 – 0.54 Microchip Technology Drawing C04-031B © 2007 Microchip Technology Inc. ...

Page 9

... Updated package outline drawing. • Section 1.0 “Electrical Characteristics”: Refo- matted table. Revision C (June 2006) • Enhanced SOT-143 Packaging Information. Revision B (May 2002) • Undocumented changes. Revision A (March 2002) • Original Release of this Document. © 2007 Microchip Technology Inc. TC1270/TC1271 DS21381D-page 9 ...

Page 10

... TC1270/TC1271 NOTES: DS21381D-page 10 © 2007 Microchip Technology Inc. ...

Page 11

... Plastic small outline transistor (RC) SOT-143, 4 lead, (tape and reel). © 2007 Microchip Technology Inc. TC1270/TC1271 XX Examples: Package a) TC1270LERCTR: b) TC1270MERCTR: c) TC1270TERCTR: d) TC1270SERCPBTR: 2.93V e) TC1270SERCTR: f) TC1270RERCTR: g) TC1270FERCTR: a) TC1271LERCTR: b) TC1271MERCTR: c) TC1271TERCTR: d) TC1271SERCTR: e) TC1271RERCTR: f) TC1271FERCTR: . 4.63V 4.38V 3.08V 2.93V 2.63V 1.75V 4.63V 4.38V 3.08V 2.93V 2.63V 1.75V DS21381D-page 11 ...

Page 12

... TC1270/TC1271 NOTES: DS21381D-page 12 © 2007 Microchip Technology Inc. ...

Page 13

... Select Mode, Smart Serial, SmartTel, Total Endurance, UNI/O, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...

Page 14

... Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2007 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...

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