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Details for MIC1232MY by Microchip Technology
MIC1232
MIC1232MY
Buy Directly from Microchip Technology Inc (11455 in stock) $0.9500
Microprocessor Supervisor with Manual Reset, Watchdog Timer, 4.37V or 4.62V Thre
MIC1232MY image

MIC1232MY by Microchip Technology

Microprocessor Supervisor with Manual Reset, Watchdog Timer, 4.37V or 4.62V Thre
Features
Power OK/Reset time delay, 250ms min.
Watchdog timer, 150ms, 600ms, or 1.2s typical
Precision supply voltage monitor, select between 5% or 10% of supply voltage
Available in 8-pin surface mount (SO)
Debounced External reset input
Low supply current, <18µA typical
Description

The MIC1232 is a multifunction circuit which monitors microprocessor activity, external reset and power supplies in microprocessor based systems. The circuit functions include a watchdog time, power supply monitor, microprocessor reset, and manual pushbutton reset input.

The power supply line is monitored with a comparator and an internal voltage reference. /RST is forced low when an out-of-tolerance condition exists and remains asserted for at least 250ms after VCC rises above the threshold voltage (4.5V or 4.75V). The /RST pin will remain logic low with VCC as low as 1.4V.

The Watchdog input (/ST) monitors µP activity and will assert /RST if no µP activity has occurred with in the watchdog timeout period. The watchdog timeout period is selectable with nominal period of 150, 600, 1200 milliseconds.

Specifications
Product Type:
Supervisor
Watchdog Timer:
Yes
Operating Temp. Range (°C):
-40 to 85
Vcc Range (V):
4.5 - 5.5
Nominal Reset Voltage (V):
4.37, 4.62
Reset Type:
Active Low/High or High/Low
Output:
Push-Pull
Typical Reset Pulse Width (ms):
250
Typical Supply Current (µA):
18
Temperature Range:
-40C to +85C
Alternate Descriptions
VOLTAGE SUPERVISOR, 18UA, 5.5V, SOIC-8; Threshold Voltage:4.37V; No. of Supervisors / Monitors:1Monitors; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Reset Type:Active-High, Push-Pull / Active-Low, Open-Drain; Digital IC RoHS Compliant: Yes Newark Electronics
Processor Supervisor 4.74V 5V 8-Pin SOIC Tube Avnet America
Microprocessor Supervisor with Manual Reset Watchdog Timer 4.37V or 4.62V Thre Microchip Technology Inc
Processor Supervisor 4.74V 5V 8-Pin SOIC Tube Avnet Europe
MIC1232 Series 4.37 V 250 ms Surface Mount ╡P Supervisory Circuit - SOIC-8 Future Electronics
Similar Part
Similar Part
Details for MIC1232MY by Microchip Technology
MIC1232
MIC1232MY
Buy Directly from Microchip Technology Inc (11455 in stock) $0.9500
VOLTAGE SUPERVISOR 18UA 5.5V SOIC-8
MIC1232MY image

MIC1232MY by Microchip Technology

VOLTAGE SUPERVISOR 18UA 5.5V SOIC-8
Features
Active-high, push-pull reset output
Active-low, open-drain reset output
Available in Pb-Free 8-pin SOIC and PDIP packages
Debounced pushbutton reset input (/PBRST)
Dual complementary reset outputs
Low current: 18u00b5A (typ), 40u00b5A (max)
Power OK/Reset time delay: 250ms (min)
Selectable threshold (TOL): 5% or 10% of 5V
Selectable watchdog timer (TD): 150ms, 600ms, 1.2s
u201340u00b0C to +85u00b0C temperature rang
Part Information
MIC1232MY image
RoHS Compliant
Description
The MIC1232 is a low-current microprocessor supervisor for monitoring 5V systems. The device features logic selectable (TOL) reset thresholds of 5% or 10% of 5V; a pushbutton reset input (/PBRST); a watchdog timer with three-state selectable (TD) timeout periods of 150ms, 600ms, or 1.2s; a fixed reset timeout period of 250ms (min); and active-low open-drain reset (/RST) and active- high push-pull reset (RST) outputs. The /RST output maintains a valid reset condition for VCC as low as 1.4V. The MIC1232 asserts a reset condition if the supply voltage drops below the reset threshold, the pushbutton reset is asserted low, or the watchdog timer does not see a high-to-low transition on the watchdog timer input within the watchdog timer period. A reset condition is held for the reset timeout period of 250ms (min) after the pushbutton input is released or after the supply voltage increases above the reset threshold voltage. The MIC1232 is a drop-in replacement for the DS1232, MAX1232, and TC1232. It consumes a low 18µA (typ) of supply current, 40µA (max). This is one-tenth the max current of the DS1232, and one-quarter the max current of the MAX1232 and TC1232. It operates over the –40C to +85C temperature range and is available in the Pb-Free 8-pin SOIC and PDIP packages.
Specifications
Threshold Voltage:
4.37V
No. of Supervisors / Monitors:
1Monitors
Supply Voltage Min:
4.5V
Supply Voltage Max:
5.5V
Reset Type:
Active-High Push-Pull / Active-Low Open-Drain
Digital IC Case:
SOIC
No. of Pins:
8Pins
Delay Time:
610ms
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (27-Jun-2018)
Alternate Descriptions
VOLTAGE SUPERVISOR, 18UA, 5.5V, SOIC-8; Threshold Voltage:4.37V; No. of Supervisors / Monitors:1Monitors; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Reset Type:Active-High, Push-Pull / Active-Low, Open-Drain; Digital IC RoHS Compliant: Yes Newark Electronics
Processor Supervisor 4.74V 5V 8-Pin SOIC Tube Avnet America
Microprocessor Supervisor with Manual Reset Watchdog Timer 4.37V or 4.62V Thre Microchip Technology Inc
Processor Supervisor 4.74V 5V 8-Pin SOIC Tube Avnet Europe
MIC1232 Series 4.37 V 250 ms Surface Mount ╡P Supervisory Circuit - SOIC-8 Future Electronics