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Maxim > Products > [Timekeeping, Timers, and Counters]  [LED Lighting and LCD Display ICs] 
ICM7555, ICM7556
Low-Power, General-Purpose Timer


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Data Sheet
FULL DATA SHEET (PDF, 3MB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Key Specifications:   Counters and Timers
Part Number Features Outputs Type Output Type Speed (MHz) Supply Current (max) (mA) Supply Voltage (min) (V) Supply Voltage (max) (V) Package Smallest Available Package (max w/pins) (mm2) Price**
ICM7555 
•Improved Second Source
•RC Oscillator or External Clock
 Logic RC Monostable or Astable CMOS 0.5 0.25 2 16.5 CDIP(N)/8
PDIP(N)/8
SOIC(N)/8
TO99/8 		31 $0.63 @ 1k
ICM7556  0.5 CDIP(N)/14
PDIP(N)/14
SOIC(N)/14 		54 $0.84 @ 1k
See All Counters and Timers (12)
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.

Application Notes
  		• Application Note 50: Proximity Detector Features Ultrasonic Transducers - ICM7555
  		• Application Note 426: One-Hour Battery Charger Has Switch-Mode PWM Control - ICM7556
  		• Application Note 4380: Reference Design for a 3S3P Rear Combination Lamp (RCL) LED Driver - ICM7555

    Evaluation Kits
    none

    Design Guides
  		• Mux & Switch (PDF)
  		• Real-Time Clocks (PDF)

    Reliability Reports
  		• Reliability Report: ICM7555.pdf
  		• Show FIT data for:
  		• Request Reliability Report for:

    Software/Models
  		• ICM7555 Macromodel
  		• ICM7555 Orcad Library
  		• ICM7555ASTABLE Test Circuit File
  		• ICM7555MONOSTABLE Test Circuit File

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * 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: 1-30 of 30

    ICM7555 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    ICM7555IJA+  


    Land Pattern: Not Available

    		-20°C to +85°C See data sheet
    ICM7555IJA  
    		CDIP(N);8 pin;83 mm²
    Outline Drawing: 21-0045 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: J8-2*
    		-20°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICM7555MJA  
    		CDIP(N);8 pin;83 mm²
    Outline Drawing: 21-0045 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: J8-2*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    ICM7555MJA/HR  
    		CDIP(N);8 pin;83 mm²
    Outline Drawing: 21-0045 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: J8-2*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    ICM7555I/D  


    Land Pattern: Not Available

    		See data sheet
    ICM7555ITV  
    		TO99;8 pin;88 mm²
    Outline Drawing: 21-0022 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: G99-8*
    		-20°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICM7555MTV  
    		TO99;8 pin;88 mm²
    Outline Drawing: 21-0022 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: G99-8*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    ICM7555MTV/HR  
    		TO99;8 pin;88 mm²
    Outline Drawing: 21-0022 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: G99-8*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    ICM7555IPA  
    		PDIP(N);8 pin;80 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8-1*
    		-20°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICM7555IPA-2  
    		PDIP(N);8 pin;80 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8-1*
    		-20°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICM7555IPA+  
    		PDIP(N);8 pin;80 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8+1*
    		-20°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICM7555ESA  
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICM7555ESA-T  
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICM7555ESA+  
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICM7555ESA+T  
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICM7555ISA  
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-2*
    		-20°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICM7555ISA-T  
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-2*
    		-20°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICM7555ISA+  
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+2*
    		-20°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICM7555ISA+T  
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+2*
    		-20°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICM7556 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    ICM7556MJD+  


    Land Pattern: Not Available

    		-55°C to +125°C See data sheet
    ICM7556MJD  
    		CDIP(N);14 pin;162 mm²
    Outline Drawing: 21-0045 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: J14-3*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    ICM7556MJD/HR  
    		CDIP(N);14 pin;162 mm²
    Outline Drawing: 21-0045 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: J14-3*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    ICM7556I/D  


    Land Pattern: Not Available

    		See data sheet
    ICM7556IPD  
    		PDIP(N);14 pin;158 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P14-3*
    		-20°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICM7556IPD-2  
    		PDIP(N);14 pin;158 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P14-3*
    		-20°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICM7556IPD+  
    		PDIP(N);14 pin;158 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P14+3*
    		-20°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICM7556ISD  
    		SOIC(N);14 pin;54 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0112 (PDF)
    Use pkgcode/variation: S14-1*
    		-20°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICM7556ISD-T  
    		SOIC(N);14 pin;54 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0112 (PDF)
    Use pkgcode/variation: S14-1*
    		-20°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICM7556ISD+  
    		SOIC(N);14 pin;54 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0112 (PDF)
    Use pkgcode/variation: S14+1*
    		-20°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICM7556ISD+T  
    		SOIC(N);14 pin;54 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0112 (PDF)
    Use pkgcode/variation: S14+1*
    		-20°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

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    Document Ref.: 19-0481; Rev 2; 1992-11-01
    This page last modified: 2006-04-26


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