MAX6302：+5V, Low-Power, µP Supervisory Circuits with Adjustable Reset/Watchdog

The MAX6301–MAX6304 low-power microprocessor (µP) supervisory circuits provide maximum adjustability for reset and watchdog functions. The reset threshold can be adjusted to any voltage above 1.22V, using external resistors. In addition, the reset and watchdog timeout periods are adjustable using external capacitors. A watchdog select pin extends the watchdog timeout period to 500x. The reset function features immunity to power-supply transients. These four devices differ only in the structure of their reset outputs (see the Selector Guide in the full data sheet). The MAX6301–MAX6304 are available in the space-saving 8-pin µMAX® package, as well as 8-pin PDIP and SO packages.

Key Features

Adjustable Reset Threshold
Adjustable Reset Timeout
Adjustable Watchdog Timeout
500x Watchdog Timeout Multiplier
4µA Supply Current
RESET or Active-Low RESET Output Options
Push-Pull or Open-Drain Output Options
Guaranteed Active-Low RESET Asserted At or Above VCC = 1V (MAX6301/MAX6303)
Power-Supply Transient Immunity
Watchdog Function can be Disabled
PDIP/SO/µMAX Packages Available

MAX6301, MAX6302, MAX6303, MAX6304: Typical Operating Circuit

Applications/Uses

Battery-Powered Computers/Controllers
Computers: Desktop, Workstation, Server
Critical µP Monitoring
Embedded Controllers
Intelligent Instruments
Medical Equipment
Portable Equipment
Set-Top Boxes

DataSheet

title	Download file
MAX6301-MAX6304 Data Sheet	MAX6301-MAX6304.pdf

Parametrics

Part Number	Reset Thresh. (V)	Reset Out	t_RESET	Watchdog Feature	Watchdog Timeout	Reset Thresh. Accur. (%)	I_CC (µA)	Package/Pins	Budgetary Price
Part Number	Reset Thresh. (V)	Reset Out	min	Watchdog Feature	Watchdog Timeout	@ +25°C	max	Package/Pins	See Notes
MAX6301	1.2 to 1.8 1.8 to 2.5 2.5 to 3.3 3.3 to 5.5	Active Low Open Drain	1ms to 15ms 15ms to 85ms 85ms to 300ms 300ms to 1s <1ms >1s Adjustable	Cap Adjustable Input (WDI)	1s to 2s <1s >2s Adjustable	2	7	µMAX/8 PDIP(N)/8 SOIC(N)/8	$2.36 @1k
MAX6302		Active High Open Drain						µMAX/8 PDIP(N)/8 SOIC(N)/8	$2.44 @1k
MAX6303		Active Low Push-Pull						µMAX/8 PDIP(N)/8 SOIC(N)/8	$2.36 @1k
MAX6304		Active High Push-Pull						µMAX/8 PDIP(N)/8 SOIC(N)/8	$1.74 @1k

Ordering Information

Part Number	Status	Recommended Replacement	Package	Temp	RoHS
MAX6302CPA	No Longer Available	MAX6302CPA+	PDIP(N),;8 pin;79.7 mm²	0°C to +70°C	No
MAX6302CPA+	Active		PDIP(N),;8 pin;79.7 mm²	0°C to +70°C	Lead Free
MAX6302CSA	No Longer Available	MAX6302CSA+	SOIC(N),;8 pin;30.9 mm²	0°C to +70°C	No
MAX6302CSA+	Active		SOIC(N),;8 pin;30.9 mm²	0°C to +70°C	Lead Free
MAX6302CSA+T	Active		SOIC(N),;8 pin;30.9 mm²	0°C to +70°C	Lead Free
MAX6302CSA-T	No Longer Available	MAX6302CSA+T	N.SO;8 pin	0°C to +70°C	See data sheet
MAX6302CUA	No Longer Available	MAX6302CUA+	µMAX,;8 pin;15.6 mm²	0°C to +70°C	No
MAX6302CUA+	Active		µMAX,;8 pin;15.6 mm²	0°C to +70°C	Lead Free
MAX6302CUA+T	Active		µMAX,;8 pin;15.6 mm²	0°C to +70°C	Lead Free
MAX6302CUA-T	No Longer Available	MAX6302CUA+T	uMAX;8 pin	0°C to +70°C	See data sheet
Part Number	Status	Recommended Replacement	Package	Temp	RoHS
MAX6302EPA	No Longer Available	MAX6302EPA+	PDIP(N),;8 pin;79.7 mm²	-40°C to +85°C	No
MAX6302EPA+	Active		PDIP(N),;8 pin;79.7 mm²	-40°C to +85°C	Lead Free
MAX6302ESA	No Longer Available	MAX6302ESA+	SOIC(N),;8 pin;30.9 mm²	-40°C to +85°C	No
MAX6302ESA+	Active		SOIC(N),;8 pin;30.9 mm²	-40°C to +85°C	Lead Free
MAX6302ESA+T	Active		SOIC(N),;8 pin;30.9 mm²	-40°C to +85°C	Lead Free
MAX6302ESA-T	No Longer Available	MAX6302ESA+T	N.SO;8 pin	-40°C to +85°C	See data sheet