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CM1223 Datasheet(PDF) 1 Page - ON Semiconductor |
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CM1223 Datasheet(HTML) 1 Page - ON Semiconductor |
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1 / 19 page  Industry First Low Capacitance ESD Protection Arrays w/Backdrive Protection CM1223 ©2010 SCILLC. All rights reserved. Publication Order Number: April 2010 – Rev.4 CM1223/D Features • Two, four, and eight 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 at 0.11pF (typical) • Zener diode protects supply rail and eliminates the need for external bypass 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 Applications • 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 display ports • Serial ATA ports in desktop PCs and hard disk drives • PCI Express ports • General purpose high-speed data line ESD protection Product Description The CM1223 family of diode arrays are designed to provide ESD protection for electronic components or subsystems 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 (V P) or negative (VN) supply rail. A Zener diode is embedded between V P and V N, to absorb positive ESD strikes and provide ESD protection for the V P rail. An additional diode is integrated 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, as well as 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. Block Diagram |
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