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参数资料
| 型号： | 74LCX32BQX |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 11/11页 |
| 文件大小： | 0K |
| 描述： | IC GATE OR QUAD 2INP LV 14-DQFN |
| 标准包装： | 1 |
| 系列： | 74LCX |
| 逻辑类型： | 或门 |
| 电路数： | 4 |
| 输入数： | 2 |
| 电源电压： | 2 V ~ 3.6 V |
| 电流 - 静态（最大值）： | 10µA |
| 输出电流高，低： | 24mA，24mA |
| 逻辑电平 - 低： | 0.7 V ~ 0.8 V |
| 逻辑电平 - 高： | 1.7 V ~ 2 V |
| 额定电压和最大 CL 时的最大传播延迟： | 5.5ns @ 3.3V，50pF |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | 14-DQFN |
| 封装/外壳： | 14-WFQFN 裸露焊盘 |
| 包装： | 标准包装 |
| 产品目录页面： | 1210 (CN2011-ZH PDF) |
| 其它名称： | 74LCX32BQXDKR |
9/14
BD5632NUX, BD5634NUX, BD5638NUX
www.rohm.com
2010.06 - Rev.A
2010 ROHM Co., Ltd. All rights reserved.
Technical Note
●
About the thermal design by the IC
Characteristics of an IC have a great deal to do with the temperature at which it is used, and exceeding absolute maximum
ratings may degrade and destroy elements. Careful consideration must be given to the heat of the IC from the two
standpoints of immediate damage and long-term reliability of operation. Pay attention to points such as the following.
Since a maximum junction temperature (TjMAX.)or operating temperature range (Topr) is shown in the absolute maximum
ratings of the IC, to reference the value, find it using the Pd-Ta characteristic (temperature derating curve). If an input signal
is too great when there is insufficient radiation, TSD (thermal shutdown) may operate. TSD, which operates at a chip
temperature of approximately +180deg, is canceled when this goes below approximately +100deg. Since TSD operates
persistently with the purpose of preventing chip damage, be aware that long-term use in the vicinity that TSD affects
decrease IC reliability.
Temperature Derating Curve
Power dissipation values vary according to the board on which the IC is mounted. The Power dissipation of this IC when
mounted on a multilayer board designed to radiate is greater than the values in the graph above.
Reference Data
VSON008X2030
1.0
0.5
0.0
0
25
50
75
100
125
150
Ambient Temperature Ta (deg)
Power
Diss
ip
at
ion
Pd(W
）
0.52W
Measurement conditions: IC unit and Rohm standard board mount
board size : 70mm×70mm x 1.6mm 1layer
θ
ja =
240.4 deg/W
85
Note) Values are actual measurements and are not guaranteed.
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