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ICM7249

Features: • Hour Meter Requires Only 4 Parts Total• Micropower Operation: < 1mA at 2.8V (Typ)• 10 Year Operation On One Lithium Cell. 21/2 Year Battery Life with Display Connected• Directly Drives 51/2 Digit LCD• 14 Programmable Modes of Operation• Times Hrs....

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SeekIC No. : 004370640 Detail

ICM7249: Features: • Hour Meter Requires Only 4 Parts Total• Micropower Operation: < 1mA at 2.8V (Typ)• 10 Year Operation On One Lithium Cell. 21/2 Year Battery Life with Display Connect...

ICM7249 Data Sheet

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Part Number:
ICM7249
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• Hour Meter Requires Only 4 Parts Total
• Micropower Operation: < 1mA at 2.8V (Typ)
• 10 Year Operation On One Lithium Cell. 21/2 Year Battery Life with Display Connected
• Directly Drives 51/2 Digit LCD
• 14 Programmable Modes of Operation
• Times Hrs., 0.1 Hrs., 0.01 Hrs., 0.1 Mins.
• Counts 1's, 10's, 100's, 1000's
• Dual Function Input Circuit- Selectable Debounce for Counter- High-Pass Filter for Timer
• Direct AC Line Triggering with Input Resistor
• Winking "Timer Active" Display Output
• Display Test Feature


Application

• AC or DC Hour Meters
• AC or DC Totalizers
• Portable Battery Powered Equipment
• Long Range Service Meters


Pinout

Connection Diagram


Specifications

Supply Voltage (VDD - VSS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
Input Voltage, Pins 43 - 48 (Note 1) . . (VSS - 0.3V) to (VDD + 0.3V)


Description

The ICM7249 Timer/Counter is intended for long-term battery-supported industrial applications. The ICM7249 typically draws 1mA during active timing or counting, due to Intersil' special low-power design techniques. This allows more than 10 years of continuous operation without battery replacement. The chip offers four timing modes, eight counting modes and four test modes.

The ICM7249 is a 48 lead device, powered by a single DC voltage source and controlled by a 32.768kHz quartz crystal.No other external components are required. Inputs to the chip are TTL-compatible and outputs drive standard direct drive LCD segments.




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