83CXXX

UNISONIC TECHNOLOGIES CO., LTD 83CXXX Preliminary CMOS IC 4-PIN µP VOLTAGE MONITORS WITH MANUAL RESET INPUT DESCRIPTION The UTC 83CXXX is a microprocessor supervisory circuit. It has an active-low RESET and push-pull outputs. The circuit can assert a reset signal as long as the VCC power supplies voltage dropping below a preset threshold and it keep the reset signal for at least 140ms when VCC has risen above the reset threshold. The reset threshold can be operated with multi-supply voltages. The UTC 83CXXX provides the circuit with perfect reliability and low cost through eliminating external components and adjustments when applied with +5V, +3.3V, +3.0V power supply The UTC 83CXXX also provide a de-bounced manual reset input. The reset comparator can work despite of fast transients on VCC, and the outputs are guaranteed to be in the right logic state while VCC is down to 1V. In applications, the UTC 83CXXX is suitable for computers, intelligent instruments, controllers, critical microprocessor and microcomputer power monitors, portable or battery-powered equipment, automotive. FEATURES * +3V, +3.3V, and +5V power-supply voltages * Full temperature rated * Supply current: 5µA * Available in configuration: push-pull RESET output * 140ms minimum power-on reset pulse width * Guaranteed reset to VCC = +1V * Power supply transient Immunity * Eliminating external components * Manual reset input * Halogen Free ORDERING INFORMATION Ordering Number Package 83CXXXG-AD4- R SOT-143 Note: XXX: Output Voltage, refer to Marking Information. 83CXXXG-AD4-R (1) Packing Type (2) Package Type (3) Halogen Free (4) Output Voltage Code (1) R: Tape Reel (2) AD4: SOT-143 (3) G: Halogen Free (4) XXX: Refer to Marking Information Packing Tape Reel www.unisonic.com.tw Copyright © 2009 Unisonic Technologies Co., Ltd 1 of 6 QW-R502-353.a 83CXXX MARKING INFORMATION PACKAGE VOLTAGE CODE Preliminary CMOS IC MARKING SOT-143 B: 2.93V C: 3.08V PIN CONFIGURATION PIN DESCRIPTION PIN NO 1 2 PIN NAME GND RESET DESCRIPTION Ground RESET output remains low while VCC is below the reset threshold, and for at least 140ms after VCC rises above the reset threshold. Manual reset input. A logic low on MR asserts reset. Reset remains asserted as long as MR is low and for at least 140ms after MR returns high, This active-low input has an internal 20kΩ pull-up resistor. It can be driven from a TTL or CMOS-logic line, or shorted to ground with a switch. Leave open if unused. Supply voltage (+5V, +3.3V, +3.0V) 3 MR 4 VCC UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 6 QW-R502-353.a 83CXXX PARAMETER Terminal Voltage (respect to GND) Push-Pull RESET Voltage Open Drain Input Current Preliminary CMOS IC ABSOLUTE MAXIMUM RATING SYMBOL VCC VRESET ICC IOUT RATINGS -0.3 ~ +6.0 -0.3 ~ (VCC+0.3) -0.3 ~ +6.0 20 20 Output Current ( RESET ) Power Dissipation (Ta =+70°C) 320 mW PD Derated Above 70°C 4 mW/°C Operating Temperature TOPR -40~+105 °C Storage Temperature Range TSTG -65~+150 °C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. UNIT V V V mA mA ELECTRICAL CHARACTERISTICS (VCC = full range, Ta =-40°C~+105°C. Typical values are at Ta=25°C, unless otherwise specified) 83C293 (2.93V) (VCC= 3.3V) PARAMETER SYMBOL VCC VIH VIL VTH ICC IOL IOH VCC Range MR Input Threshold Reset Threshold Supply Current RESET Output Current (push-pull active low) Low High TEST CONDITIONS Ta=0°C~+70°C Ta=-40°C~+105°C VCC>VTH(MAX) Ta=25°C VCCVTH(MAX) Ta=25°C VCC