LTC1232CS8#TR datasheet, PDF - EEWORLD Datasheet

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LTC1232CS8#TR: DescriptionProcessor Supervisor 4.62V 1 Active High/Active Low/Open Drain Automotive 8-Pin SOIC N T/R; File Size107KB，8 Pages; ManufacturerADI; Websitehttps://www.analog.com

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LTC1232CS8#TR Overview

Processor Supervisor 4.62V 1 Active High/Active Low/Open Drain Automotive 8-Pin SOIC N T/R

LTC1232CS8#TR Parametric

Parameter Name	Attribute value
EU restricts the use of certain hazardous substances	Not Compliant
ECCN (US)	EAR99
Part Status	Unconfirmed
HTS	8542.39.00.01
SVHC	Yes
SVHC Exceeds Threshold	Yes
Number of Supervisors	1
Maximum Reset Active Time (ms)	1000
Output Driver	Active High/Active Low/Open Drain
Minimum Reset Threshold Voltage (V)	4.5
Typical Reset Threshold Voltage (V)	4.62
Maximum Reset Threshold Voltage (V)	4.74
Monitored Voltage (V)	4.37\|4.62
Minimum Operating Supply Voltage (V)	4.5
Typical Operating Supply Voltage (V)	5
Maximum Operating Supply Voltage (V)	5.5
Maximum Supply Current (uA)	2000
Maximum Power Dissipation (mW)	500
Power Fail Detection	No
Watchdog Timer	Yes
Manual Reset	Yes
Chip Enable Signals	No
Battery Backup Switching	No
Minimum Operating Temperature (°C)	0
Maximum Operating Temperature (°C)	70
Supplier Temperature Grade	Commercial
Packaging	Tape and Reel
Type	Voltage Supervisory
Pin Count	8
Standard Package Name	SOP
Supplier Package	SOIC N
Mounting	Surface Mount
Package Height	1.5(Max)
Package Length	5(Max)
Package Width	3.99(Max)
PCB changed	8
Lead Shape	Gull-wing

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LTC1232

Microprocessor

Supervisory Circuits

FEATURES

■

DESCRIPTIO

Guaranteed

Reset Assertion at V

= 1V

8-Pin SO Plastic Package

2.0mA Maximum Supply Current

4.62V/4.37V Precision Voltage Monitor

Power OK/Reset Time Delay: 600ms

Minimum External Component Count

Superior Upgrade for DS1232

The LTC

1232 provides power supply monitoring,

watchdog timing and external reset for microprocessor

systems. A precise internal voltage reference and

comparator circuit monitor the power supply line. When

an out-of-tolerance condition occurs, the reset outputs

are forced to active states. The RST output is guaranteed

to remain logic low even with V

as low as 1V.

The LTC1232 has an internal watchdog timer which forces

the reset outputs to active states when the Strobe input is

not forced low prior to a preset time-out period. The

watchdog timing can be set to operate on time-out periods

of typically 150ms, 600ms or 1.2 seconds.

The LTC1232 performs push-button reset control.

The LTC1232 debounces the push-button input

and guarantees an active reset pulse width of 250ms

minimum.

, LTC and LT are registered trademarks of Linear Technology Corporation.

APPLICATIO S

■

Critical

µP

Power Monitoring

Intelligent Instruments

Computers and Controllers

Automotive Systems

TYPICAL APPLICATIO

RST Output Voltage vs

Supply Voltage

5V DC

PB RST

5V DC

100k

MPU

(e.g. 6805)

I/O LINE

RESET

RST OUTPUT VOLTAGE (V)

LTC1232

TOL

GND

RST

LTC1232 • TA01

SUPPLY VOLTAGE (V)

LTC1232 • TA02

sn1232 1232fas

LTC1232CS8#TR Related Products

	LTC1232CS8#TR	LTC1232CN8#PBF	LTC1232CN8	LTC1232CS8#PBF	LTC1232CS8#TRPBF	LTC1232CS8	LTC1232IS8#PBF	LTC1232IS8#TR	LTC1232IS8#TRPBF	LTC1232IS8
Description	Processor Supervisor 4.62V 1 Active High/Active Low/Open Drain Automotive 8-Pin SOIC N T/R	Processor Supervisor 4.62V 1 Active High/Active Low/Open Drain Automotive 8-Pin PDIP N Tube	Processor Supervisor 4.62V 1 Active High/Active Low/Open Drain Automotive 8-Pin PDIP N	Processor Supervisor 4.62V 1 Active High/Active Low/Open Drain Automotive 8-Pin SOIC N Tube	Processor Supervisor 4.62V 1 Active High/Active Low/Open Drain Automotive 8-Pin SOIC N T/R	Processor Supervisor 4.62V 1 Active High/Active Low/Open Drain Automotive 8-Pin SOIC N	Processor Supervisor 4.62V 1 Active High/Active Low/Open Drain Automotive 8-Pin SOIC N Tube	Processor Supervisor 4.62V 1 Active High/Active Low/Open Drain Automotive 8-Pin SOIC N T/R	Processor Supervisor 4.62V 1 Active High/Active Low/Open Drain Automotive 8-Pin SOIC N T/R	Processor Supervisor 4.62V 1 Active High/Active Low/Open Drain Automotive 8-Pin SOIC N
EU restricts the use of certain hazardous substances	Not Compliant	-	Not Compliant	Compliant	Compliant	Not Compliant	Compliant	Not Compliant	Compliant	Not Compliant
ECCN (US)	EAR99	-	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
Part Status	Unconfirmed	-	Unconfirmed	Active	Active	Unconfirmed	Active	Unconfirmed	Active	Unconfirmed
HTS	8542.39.00.01	-	8542.39.00.01	8542.39.00.01	8542.39.00.01	8542.39.00.01	8542.39.00.01	8542.39.00.01	8542.39.00.01	8542.39.00.01
Number of Supervisors	1	-	1	1	1	1	1	1	1	1
Maximum Reset Active Time (ms)	1000	-	1000	1000	1000	1000	1000	1000	1000	1000
Output Driver	Active High/Active Low/Open Drain	-	Active High/Active Low/Open Drain	Active High/Active Low/Open Drain	Active High/Active Low/Open Drain	Active High/Active Low/Open Drain	Active High/Active Low/Open Drain	Active High/Active Low/Open Drain	Active High/Active Low/Open Drain	Active High/Active Low/Open Drain
Minimum Reset Threshold Voltage (V)	4.5	-	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5
Typical Reset Threshold Voltage (V)	4.62	-	4.62	4.62	4.62	4.62	4.62	4.62	4.62	4.62
Maximum Reset Threshold Voltage (V)	4.74	-	4.74	4.74	4.74	4.74	4.74	4.74	4.74	4.74
Monitored Voltage (V)	4.37\|4.62	-	4.62\|4.37	4.37\|4.62	4.37\|4.62	4.37\|4.62	4.37\|4.62	4.62\|4.37	4.62\|4.37	4.37\|4.62
Minimum Operating Supply Voltage (V)	4.5	-	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5
Typical Operating Supply Voltage (V)	5	-	5	5	5	5	5	5	5	5
Maximum Operating Supply Voltage (V)	5.5	-	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5
Maximum Supply Current (uA)	2000	-	2000	2000	2000	2000	2000	2000	2000	2000
Maximum Power Dissipation (mW)	500	-	500	500	500	500	500	500	500	500
Power Fail Detection	No	-	No	No	No	No	No	No	No	No
Watchdog Timer	Yes	-	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Manual Reset	Yes	-	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Chip Enable Signals	No	-	No	No	No	No	No	No	No	No
Battery Backup Switching	No	-	No	No	No	No	No	No	No	No
Maximum Operating Temperature (°C)	70	-	70	70	70	70	85	85	85	85
Supplier Temperature Grade	Commercial	-	Commercial	Commercial	Commercial	Commercial	Industrial	Industrial	Industrial	Industrial
Packaging	Tape and Reel	-	-	Tube	Tape and Reel	-	Tube	Tape and Reel	Tape and Reel	-
Type	Voltage Supervisory	-	Voltage Supervisory	Voltage Supervisory	Voltage Supervisory	Voltage Supervisory	Voltage Supervisory	Voltage Supervisory	Voltage Supervisory	Voltage Supervisory
Pin Count	8	-	8	8	8	8	8	8	8	8
Standard Package Name	SOP	-	DIP	SOP	SOP	SOP	SOP	SOP	SOP	SOP
Supplier Package	SOIC N	-	PDIP N	SOIC N	SOIC N	SOIC N	SOIC N	SOIC N	SOIC N	SOIC N
Mounting	Surface Mount	-	Through Hole	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package Height	1.5(Max)	-	3.3	1.5(Max)	1.5(Max)	1.5(Max)	1.5(Max)	1.5(Max)	1.5(Max)	1.5(Max)
Package Length	5(Max)	-	10.16(Max)	5(Max)	5(Max)	5(Max)	5(Max)	5(Max)	5(Max)	5(Max)
Package Width	3.99(Max)	-	6.48	3.99(Max)	3.99(Max)	3.99(Max)	3.99(Max)	3.99(Max)	3.99(Max)	3.99(Max)
PCB changed	8	-	8	8	8	8	8	8	8	8
Lead Shape	Gull-wing	-	Through Hole	Gull-wing	Gull-wing	Gull-wing	Gull-wing	Gull-wing	Gull-wing	Gull-wing

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