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CM1223

 The CM1223 is available with lead-free finishing.

2, 4 and 8 Channel Low Capacitance ESD Protection Arrays with Backdrive Protection

PRODUCT DESCRIPTION
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The CM1223 family of diode arrays has been designed to provide ESD protection for electronic components or sub-systems requiring minimal capacitive loading. These devices are ideal for protecting systems with high data and clock rates or for circuits requiring low capacitive loading. Each ESD channel consists of a pair of diodes in series which steer the positive or negative ESD current pulse to either the positive (VP) or negative (VN) supply rail. A Zener diode is embedded between VP and VN, absorbing positive ESD strikes and also providing ESD protection for the VP rail. An additional diode is added in this device to serve as backdrive current protection. The CM1223 protects against ESD pulses up to ±8kV per the IEC 61000-4-2 standard. In addition, all pins are protected from contact discharges of greater than ±15kV as outlined by the MIL-STD-883D (Method 3015) specification for Human Body Model (HBM) ESD.

These devices are particularly well-suited for protecting systems using high-speed ports such as USB2.0, IEEE1394 (Firewire®, iLink™), Serial ATA, DVI, HDMI and corresponding ports in removable storage, digital camcorders, DVD-RW drives and other applications where extremely low loading capacitance with ESD protection are required in a small package footprint.

The CM1223 family of devices are manufactured with RoHS-compliant, lead-free packaging.

Note: Some of the devices listed here have suggested replacements available. Please see additional information at the end of this page.

FEATURES

APPLICATIONS
  • 2, 4, and 8 channels of ESD protection with integrated backdrive protection on all lines
  • Provides ESD protection to IEC61000-4-2 Level 4
    • ±8kV contact discharge
    • ±15kV air discharge
  • Low channel input capacitance of 1.0pF typical
  • Minimal capacitance change with temperature and voltage
  • Channel I/O to GND capacitance difference of 0.02pF typical is ideal for differential signals
  • Mutual capacitance between signal pin and adjacent signal pin - 0.11pF (typical)
  • Zener diode protects supply rail and eliminates the need for external by-pass capacitors
  • Pin compatible with CM1213-02, -04, and -08
  • Each I/O pin can withstand over 1000 ESD strikes*
  • Available in SOT and MSOP packages
  • RoHS-compliant, lead-free packaging
  • USB2.0 ports at 480Mbps in desktop PCs, notebooks and peripherals
  • IEEE1394 Firewire®; ports at 400Mbps / 800Mbps
  • DVI ports, HDMI ports in notebooks, set top boxes, digital TVs, LCD displays
  • UDI and Displayport
  • Serial ATA ports in desktop PCs and hard disk drives
  • PCI Express ports
  • General purpose high-speed data line ESD protection* Standard test condition is IEC61000-4-2 level 4 test circuit with each pin subjected to ±8kV contact discharge for 1000 pulses. Discharges are timed at 1 second intervals and all 1000 strikes are completed in one continuous test run. The part is then subjected to standard production test to verify that all of the tested parameters are within spec after the 1000 strikes.

DATA SHEET(S)

 Part Number Datasheet
 CM1223-02SO, CM1223-02SR, CM1223-04MR, CM1223-04SO, CM1223-08MR Data Sheet (PDF - 1.47 MB)
Last Revision Date: 2009-10-15 — Issue C

PACKAGING, FINISHING & STATUS INFORMATION

Part Number PackageLead-Free
Finishing		Status
CM1223-02SR SOT143Active
CM1223-02SO SOT23-5Active
CM1223-04SO SOT23-6Active
CM1223-04MR MSOP-10Active
CM1223-08MR MSOP-10Active
Include CM1223 devices with OBSOLETE status

PRODUCT REPLACEMENT INFORMATION

The following End-of-life or Obsolete products have suggested replacements available from CMD.
Part Number Replacement
CM1223-02SS CM1223-02SR
CM1223-02ST CM1223-02SO
CM1223-04MS CM1223-04MR
CM1223-04ST CM1223-04SO
CM1223-08MS CM1223-08MR

Status Key

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