QuickView

Technical Documents

Ordering Info

More Information

User Comments (0)

All

Data Sheet

FULL DATA SHEET (PDF, 608kB) Download   E-Mail

Description

The MAX7387/MAX7388 replace ceramic resonators, crystals, and supervisory functions for microcontrollers in 3.3V and 5V applications. The MAX7387/MAX7388 provide a clock source together with integrated reset, watchdog, and power-fail functions. The watchdog timer is pin programmable and provides watchdog timeout values in the 16ms to 2048ms range. The power-fail output provides early warning of power failure. The power-fail threshold on the MAX7388 is internally set. The MAX7387 also provides a separate watchdog output that is used as a status indicator or to control safety-critical system elements. The MAX7387/MAX7388 clock outputs are factory programmed to a frequency in the 1MHz to 16MHz range. Four standard frequencies are available. Other frequencies are available upon request. The maximum operating supply current is 5.5mA (max) with a clock frequency of 12MHz. Unlike typical crystal and ceramic resonator oscillator circuits, the MAX7387/MAX7388 are resistant to EMI, vibration, and operate reliably at high temperatures. The high-output drive current and absence of high-impedance nodes make the oscillator invulnerable to dirty or humid operating conditions. The MAX7387/MAX7388 are available in 10-pin and 8-pin µMAX® packages. The MAX7387/MAX7388 standard operating temperature range is from -40°C to +125°C.

Key Features		Applications/Uses
Robust Microcontroller Clock and Supervisor in a Single Package Integrated Reset, Watchdog, and Power-Fail Functions Pin-Programmable Watchdog Timeout +2.7V to +5.5V Operation Factory-Trimmed Oscillator Reset Valid Down to 1.1V Supply Voltage ±10mA Clock-Output Drive Current ±4% Total Accuracy for -40°C to +125°C ±2.75% Total Accuracy for 0°C to +85°C -40°C to +125°C Temperature Range 8- and 10-Pin µMAX Surface-Mount Package 5.5mA Operating Current (12MHz) 1MHz to 16MHz Factory Preset Frequency		Appliances and Controls Automotive Handheld Products Microcontroller Systems Portable Equipment White Goods

Diagram

Typical Application Circuit

Application Notes

Application Note 3582: Replacing Crystals and Ceramic Resonators with Silicon Oscillators - MAX7387, MAX7388

Evaluation Kits

none

Design Guides

Microprocessor Supervisory (PDF) System Timing & Control (PDF)

Reliability Reports

Show FIT data for: MAX7387 MAX7388 Request Reliability Report for: MAX7387 MAX7388

Software/Models

none

Ordering Information
Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * 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.
Devices: 1-36 of 36
MAX7387	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX7387CSAC				-40°C to +125°C	See data sheet
MAX7387CMAC				-40°C to +125°C	See data sheet
MAX7387CMVB-T				-40°C to +125°C	See data sheet
MAX7387CSWB-T				-40°C to +125°C	See data sheet
MAX7387CMRD-T				-40°C to +125°C	See data sheet
MAX7387CMTP-T				-40°C to +125°C	See data sheet
MAX7387CMVB			uMAX;10 pin; Dwg: 21-0061 (PDF) Use pkgcode/variation: U10-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX7387CMRD			uMAX;10 pin; Dwg: 21-0061 (PDF) Use pkgcode/variation: U10-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX7387CMTP			uMAX;10 pin; Dwg: 21-0061 (PDF) Use pkgcode/variation: U10-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX7387CSVB-T				-40°C to +125°C	See data sheet
MAX7387CSTP-T				-40°C to +125°C	See data sheet
MAX7387CSTP			uMAX;10 pin; Dwg: 21-0061 (PDF) Use pkgcode/variation: U10-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX7387CSRD			uMAX;10 pin; Dwg: 21-0061 (PDF) Use pkgcode/variation: U10-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX7387CMWB-T				-40°C to +125°C	See data sheet
MAX7387CSVB			uMAX;10 pin; Dwg: 21-0061 (PDF) Use pkgcode/variation: U10-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX7387CSWB			uMAX;10 pin; Dwg: 21-0061 (PDF) Use pkgcode/variation: U10-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX7387CMWB			uMAX;10 pin; Dwg: 21-0061 (PDF) Use pkgcode/variation: U10-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX7387CSRD-T				-40°C to +125°C	See data sheet
MAX7388	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX7388CMAC				-40°C to +125°C	See data sheet
MAX7388CSAC				-40°C to +125°C	See data sheet
MAX7388CSTP-T				-40°C to +125°C	See data sheet
MAX7388CSVB			uMAX;8 pin; Dwg: 21-0036 (PDF) Use pkgcode/variation: U8-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX7388CSVB-T				-40°C to +125°C	See data sheet
MAX7388CSWB			uMAX;8 pin; Dwg: 21-0036 (PDF) Use pkgcode/variation: U8-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX7388CSWB-T				-40°C to +125°C	See data sheet
MAX7388CSTP			uMAX;8 pin; Dwg: 21-0036 (PDF) Use pkgcode/variation: U8-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX7388CSRD-T				-40°C to +125°C	See data sheet
MAX7388CSRD			uMAX;8 pin; Dwg: 21-0036 (PDF) Use pkgcode/variation: U8-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX7388CMWB-T				-40°C to +125°C	See data sheet
MAX7388CMWB			uMAX;8 pin; Dwg: 21-0036 (PDF) Use pkgcode/variation: U8-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX7388CMVB-T				-40°C to +125°C	See data sheet
MAX7388CMVB			uMAX;8 pin; Dwg: 21-0036 (PDF) Use pkgcode/variation: U8-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX7388CMTP-T				-40°C to +125°C	See data sheet
MAX7388CMRD-T				-40°C to +125°C	See data sheet
MAX7388CMRD			uMAX;8 pin; Dwg: 21-0036 (PDF) Use pkgcode/variation: U8-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX7388CMTP			uMAX;8 pin; Dwg: 21-0036 (PDF) Use pkgcode/variation: U8-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis

More Information

New Product Press Release 2006-02-17  Product Ad: Download

Related Products

MAX7391 Speed-Switching Clock Generator with Power Fail MAX7387, MAX7388 System Monitoring Oscillator with Watchdog and Power Fail MAX7389, MAX7390 Microcontroller Clock Generator with Watchdog

Didn't Find What You Need?

Next Day Product Selection Assistance from Applications Engineers Parametric Search Applications Help

QuickView

Technical Documents

Ordering Info

More Information

Description   Key Features   Applications/Uses   Key Specifications   Diagram

Data Sheet   Application Notes   Design Guides   Engineering Journals   Reliability Reports   Software/Models   Evaluation Kits

Price and Availability   Samples   Buy Online   Package Information   Lead-Free Information

Related Products   Notes and Comments   Evaluation Kits