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| MSM82C55A-2RS资料 | |
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MSM82C55A-2RS PDF Download |
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File Size : 116 KB
Manufacturer:OKI Description:This table reflects the DC limits used by Philips Semiconductors during its testing operations and conducted under the conditions set forth under the Recommended Operating Conditions table. VOH, for example, is guaranteed to be no less than 2.7V when tested with VCC = +4.75V, VIH = 2.0V, VIL = 0.8V, across the temperature range from 0 to 70C, and with an output current of IOH = C1.0mA. In this table, one sees the heritage of the original junction isolated Schottky family … VOL = 0.5V at IOL = 20mA. This gives the user a guaranteed worst-case Low state noise immunity of 0.3V. In the High state the noise immunity is 0.7V worst case. Although at first glance it would seem one-sided to have greater noise immunity in the High state than in the Low, this is a useful state of affairs. Because the impedance of an output in the High state is generally much higher than in the Low state, more noise immunity in the High state is needed. This is because the noise source couples noise onto the output connection of the device that output tries to pull the noise source down by sinking the energy to ground or to VCC depending on the state. The ability of the output to do that is determined by its output impedance. The lower half of the output stage is a very low-impedance transistor which can effectively pull the noise source down. Because of the higher impedance of the upper stage of the output, it is not as effective in shunting the noise energy to VCC, so that an extra 0.4V of noise immunity in the High state compensates for the higher impedance. The result is a nice balance of sink and drive current capabilities with the optimum amount of noise immunity in both states. |
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| 1PCS | 100PCS | 1K | 10K | ||
| 价 格 | |||||
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型 号：MSM82C55A-2RS 厂 家：OKI 封 装：DIP 批 号：09+ 数 量：1500 说 明：全新原装大量长期供应 |
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运 费： 所在地： 新旧程度： |
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| 联系人：林小姐 |
| 电 话：086-755-23815997 |
| 手 机：13632589437 |
| QQ：1097182423,2851921558 |
| MSN： |
| 传 真：0755-23815984 |
| EMail：joylin@hongbotong.com |
| 公司地址： 深圳市福田区深南中路3006号佳和大厦B座2007室 |
