The MAX6365–MAX6368 supervisory circuits simplify power-supply monitoring, battery-backup control functions, and memory write protection in microprocessor (µP) systems. The circuits significantly improve the size, accuracy, and reliability of modern systems with an ultra-small integrated solution.
These devices perform four basic system functions:
Provide a µP reset output during VCC supply power-up, power-down, and brownout conditions.
Internally control VCC to backup-battery switching to maintain data or low-power operation for CMOS RAM, CMOS µPs, real-time clocks, and other digital logic when the main supply fails.
Provide memory write protection through internal chip-enable gating during supply or processor faults.
Include one of the following options: a manual reset input (MAX6365), a watchdog timer function (MAX6366), a battery-on output (MAX6367), or an auxiliary user-adjustable reset input (MAX6368).
The MAX6365–MAX6368 operate from VCC supply voltages as low as 1.2V. The factory preset reset threshold voltages range from 2.32V to 4.63V (see Ordering Information). In addition, each part is offered in three reset output versions: push-pull active low, open-drain active low, or open-drain active high (see Selector Guide). The MAX6365–MAX6368 are available in miniature 8-pin SOT23 packages.
Key Features
Applications/Uses
Low +1.2V Operating Supply Voltage (VCC or VBATT)
Precision Monitoring of +5.0, +3.3V, +3.0V, and
+2.5V Power-Supply Voltages
On-Board Gating of Chip-Enable Signals, 1.5ns Propagation Delay
Debounced Manual Reset Input (MAX6365)
Watchdog Timer, 1.6s Timeout (MAX6366)
Battery-On Output Indicator (MAX6367)
Auxiliary User-Adjustable RESET IN (MAX6368)
Low 10µA Quiescent Supply Current
Three Available Output Structures
Push-Pull active-low RESET
Open-Drain active-low RESET
Open-Drain RESET
RESET/active-low RESET Valid Down to 1.2V Guaranteed
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
MAX6365H
Free Sample
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
Temp
RoHS/Lead-Free? Materials Analysis
MAX6365HKA44
SOT;8 pin;9 mm²
Outline Drawing: 21-0078 (PDF)
Land Pattern: 90-0176 (PDF)
Use pkgcode/variation: K8SN-1*
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