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CM1224
2 and 4-Channel
Low Capacitance
ESD Protection Arrays
Product Description
The CM1224 family of diode arrays has been 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
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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 (V N ) supply rail. A Zener diode is
embedded between V P and V N , offering two advantages. First, it
protects the V CC rail against ESD strikes, and second, it eliminates the
need for a bypass capacitor that would otherwise be needed for
absorbing positive ESD strikes to ground. The CM1224 will protect
SOT ? 143 SOT23 ? 6
SR SUFFIX SO SUFFIX
CASE 318A CASE 527AJ
BLOCK DIAGRAM
V P CH4
MSOP 10
MR SUFFIX
CASE 846AE
V P CH3
against ESD pulses up to ± 8 kV per the IEC 61000 ? 4 ? 2 standard.
These devices are particularly well ? suited for protecting systems
using high ? speed ports such as USB 2.0, IEEE1394 (Firewire ? ,
iLink t ), 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.
CH1
V N
CM1224 ? 02SR
CH2
CH1 V N CH2
CM1224 ? 04SO
CM1224 ? 04MR
MSOP ? 10
The CM1224 family of devices has lead ? free finishing in a small
package footprint.
Features
? Two or Four Channels of ESD Protection
? Provides ESD Protection to IEC61000 ? 4 ? 2 Level 4
± 8 kV Contact Discharge
? Low Channel Input Capacitance of 0.7 pF Typical
? Minimal Capacitance Change with Temperature and Voltage
? Channel Input Capacitance Matching of 0.02 pF Typical is Ideal for
Differential Dignals
? Zener Diode Protects Supply Rail and Eliminates the Need for
External By ? pass Capacitors
? Low Clamping Voltage (V CLAMP ) at 10 V
? Low Dynamic Resistance (R DYN ) at 1.08 W
? Each I/O Pin Can Withstand Over 1000 ESD Strikes
? Available in SOT and MSOP Lead ? free Packages
? These Devices are Pb ? Free and are RoHS Compliant
MARKING DIAGRAM
L242 M G L244 M G L243 M G
G G G
1
SOT143 ? 4 SOT23 ? 6
L24x = Specific Device Code
M = Date Code
G = Pb ? Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
Device Package Shipping
CM1224 ? 02SR SOT143 ? 4 3000/Tape & Reel
(Pb ? Free)
CM1224 ? 04SO SOT23 ? 6 3000/Tape & Reel
(Pb ? Free)
Applications
? USB2.0 Ports at 480 Mbps in desktop PCs, Notebooks and Peripherals
? IEEE1394 Firewire ? Ports at 400 Mbps / 800 Mbps
? DVI Ports, HDMI Ports in Notebooks, Set Top Boxes, Digital TVs,
LCD Displays
CM1224 ? 04MR MSOP ? 10 4000/Tape & Reel
(Pb ? Free)
?For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
? Serial ATA Ports in Desktop PCs and Hard Disk Drives
? PCI Express Ports ? General Purpose High ? speed Data Line ESD Protection
? Semiconductor Components Industries, LLC, 2012
July, 2012 ? Rev. 5
1
Publication Order Number:
CM1224/D
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相关代理商/技术参数
CM1224-04MR 功能描述:ESD 抑制器 4-ch. 0.7pF Ultra Lo RoHS:否 制造商:STMicroelectronics 通道:8 Channels 击穿电压:8 V 电容:45 pF 端接类型:SMD/SMT 封装 / 箱体:uQFN-16 功率耗散 Pd: 工作温度范围:- 40 C to + 85 C
CM1224-04SO 功能描述:ESD 抑制器 4-ch. 0.7pF Ultra Lo RoHS:否 制造商:STMicroelectronics 通道:8 Channels 击穿电压:8 V 电容:45 pF 端接类型:SMD/SMT 封装 / 箱体:uQFN-16 功率耗散 Pd: 工作温度范围:- 40 C to + 85 C
CM1224K 制造商:CML 制造商全称:Chicago Miniature Lamp,inc 功能描述:R-12 Single Contact Bayonet Base
CM1225 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:4-Channel Low Capacitance ESD Protection Arrays
CM-1225 功能描述:机架和机柜配件 1.75"X19" CBL/PANEL RoHS:否 制造商:Bivar 产品:Rack Accessories 面板空间: 颜色:Black
CM1225-04DE 功能描述:ESD 抑制器 4-ch ESD Protection 0.7pF Capacitance RoHS:否 制造商:STMicroelectronics 通道:8 Channels 击穿电压:8 V 电容:45 pF 端接类型:SMD/SMT 封装 / 箱体:uQFN-16 功率耗散 Pd: 工作温度范围:- 40 C to + 85 C
CM1226-04DE 功能描述:ESD 抑制器 4-ch ESD Protection 0.7pF Capacitance RoHS:否 制造商:STMicroelectronics 通道:8 Channels 击穿电压:8 V 电容:45 pF 端接类型:SMD/SMT 封装 / 箱体:uQFN-16 功率耗散 Pd: 工作温度范围:- 40 C to + 85 C
CM-1227 功能描述:机架和机柜配件 3.5"X19" CBL/PANEL RoHS:否 制造商:Bivar 产品:Rack Accessories 面板空间: 颜色:Black