MAX6387XS26D7-T中文资料(3)

a negative-going pulse applied to VCC, starting above theactual reset threshold and ending below it by the magni-tude indicated (reset comparator overdrive). The graphindicates the typical maximum pulse width a negative-going VCCtransient may have without causing a resetpulse to be issued. As the magnitude of the transientincreases (goes farther below the reset threshold), themaximum allowable pulse width decreases. A 0.1µFcapacitor mounted as close as possible to VCCprovidesadditional transient immunity.

The MAX6381–MAX6390 are guaranteed to operateproperly down to VCC= 1V. In applications that requirevalid reset levels down to VCC= 0, a pulldown resistor toactive-low outputs (push/pull only, Figure 2) and apullup resistor to active-high outputs (push/pull only) willensure that the reset line is valid while the reset outputcan no longer sink or source current. This scheme does

Ensuring a Valid RESETOutput Down to VCC= 0

_______________________________________________________________________________________7

SC70, Single/Dual Low-Voltage, Low-Power µP Reset CircuitsMAX6381–MAX6390

Pin Configurations (continued)

*MRis for MAX6384/MAX6385/MAX6386/MAX6390**RESET IN is for MAX6387/MAX6388/MAX6389( ) are for MAX6382/MAX6385/MAX6388

Chip Information

TRANSISTOR COUNT: 647PROCESS: BiCMOS

8

SC70, Single/Dual Low-Voltage, Low-Power µP Reset Circuits

Ordering Information

Note:Insert reset threshold suffix (see Reset Threshold table)after "XR" or "XS". Insert reset timeout delay (see Reset TimeoutDelay table) after "D" to complete the part number. Samplestock is generally held on standard versions only (see

Standard Versions table). Standard versions have an orderincrement requirement of 2500 pieces. Nonstandard versionshave an order increment requirement of 10,000 pieces.Contact factory for availability of nonstandard versions.*MAX6390 is available with D4 or D7 timing only.

_______________________________________________________________________________________9

MAX6381–MAX6390

SC70, Single/Dual Low-Voltage, Low-Power µP Reset CircuitsMAX6381–MAX6390

Package Information

10______________________________________________________________________________________

SC70, Single/Dual Low-Voltage, Low-Power µP Reset Circuits

Package Information (continued)

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses areimplied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600____________________11©2001 Maxim Integrated Products

Printed USA

is a registered trademark of Maxim Integrated Products.

MAX6381–MAX6390

百度搜索“77cn”或“免费范文网”即可找到本站免费阅读全部范文。收藏本站方便下次阅读，免费范文网，提供经典小说公务员考试MAX6387XS26D7-T中文资料(3)在线全文阅读。