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ST7232A 数据表(PDF) 133 Page - STMicroelectronics |
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ST7232A 数据表(HTML) 133 Page - STMicroelectronics |
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133 / 157 page  ST7232A 133/157 CONTROL PIN CHARACTERISTICS (Cont’d) 12.9.2 ICCSEL/VPP Pin Subject to general operating conditions for VDD, fCPU, and TA unless otherwise specified. Figure 75. Two typical Applications with ICCSEL/VPP Pin 2) Notes: 1. Data based on design simulation and/or technology characteristics, not tested in production. 2. When ICC mode is not required by the application ICCSEL/VPP pin must be tied to VSS. Symbol Parameter Conditions Min Max Unit VIL Input low level voltage 1) FLASH versions VSS 0.2 V ROM versions VSS 0.3xVDD VIH Input high level voltage 1) FLASH versions VDD-0.1 12.6 ROM versions 0.7xVDD VDD IL Input leakage current VIN=VSS ±1 µA ICCSEL/VPP ST72XXX 10k Ω PROGRAMMING TOOL VPP ST72XXX 1 |
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