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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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Status
Active: In Production.

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)		 ISUPPLY
(mA)		 VSUPPLY
(V)		 VSUPPLY
(V)		 Package/Pins Smallest Available Pckg.
(mm2)		 Price
max min max max w/pins See Notes
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
 30.9 $0.63 @1k
ICM7556  0.5
CDIP(N)/14
PDIP(N)/14
SOIC(N)/14
 158.4 $0.84 @1k
See All Counters and Timers (12)

Diagram
ICM7555, ICM7556: Pin Configuration
Pin Configuration

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

    Design Guides
  		• Signal Routing & Protection (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 Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    ICM7555IJA+    
    		Active

    Land Pattern: Not Available

    		-20°C to +85°C See data sheet
    ICM7555IJA    
    		Active CDIP(N);8 pin;82.6 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    
    		Active CDIP(N);8 pin;82.6 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    
    		Active CDIP(N);8 pin;82.6 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    
    		Active DICE SALES;NA pin;0 mm²

    Land Pattern: Not Applicable
    Use pkgcode/variation: DICE*
    		See data sheet
    ICM7555MTV    
    		Active TO99;8 pin;88.4 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    
    		Active TO99;8 pin;88.4 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
    ICM7555ITV    
    		Active TO99;8 pin;88.4 mm²
    Outline Drawing: 21-0022 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: T99-8*
    		-20°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICM7555IPA    
    		Active PDIP(N);8 pin;79.7 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    
    		Active PDIP(N);8 pin;79.7 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+  
    		Active PDIP(N);8 pin;79.7 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    
    		Active SOIC(N);8 pin;30.9 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    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    ICM7555ESA+  
    		Active SOIC(N);8 pin;30.9 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    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    ICM7555ISA    
    		Active SOIC(N);8 pin;30.9 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    
    		Active

    Land Pattern: Not Available

    		-20°C to +85°C See data sheet
    ICM7555ISA+  
    		Active SOIC(N);8 pin;30.9 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    
    		Active SOIC(N);8 pin;30.9 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 Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    ICM7556MJD+    
    		Active

    Land Pattern: Not Available

    		-55°C to +125°C See data sheet
    ICM7556MJD    
    		Active CDIP(N);14 pin;162.1 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    
    		Active CDIP(N);14 pin;162.1 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    
    		Active DICE SALES;NA pin;0 mm²

    Land Pattern: Not Applicable
    Use pkgcode/variation: DICE*
    		See data sheet
    ICM7556IPD    
    		Active PDIP(N);14 pin;158.4 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    
    		Active PDIP(N);14 pin;158.4 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+  
    		Active PDIP(N);14 pin;158.4 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    
    		Active SOIC(N);14 pin;54.2 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    
    		Active SOIC(N);14 pin;54.2 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+  
    		Active SOIC(N);14 pin;54.2 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    
    		Active SOIC(N);14 pin;54.2 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: 2009-11-06


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