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TP87C51FA 데이터시트(PDF) 3 Page - Intel Corporation |
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TP87C51FA 데이터시트(HTML) 3 Page - Intel Corporation |
3 / 18 page AUTOMOTIVE 87C51FAFBFCFC-20 range of b40 Cto a85 C ambient For the automo- tive temperature range option operational charac- teristics are guaranteed over the temperature range of b40 Cto a125 C ambient The automotive ex- tended and commercial temperature versions of the MCS-51 product families are available with or with- out burn-in options As shown in Figure 2 temperature burn-in and package options are identified by a one- or two-letter prefix to the part number PIN DESCRIPTIONS VCC Supply voltage VSS Circuit ground VSS1 Secondary ground (in PLCC only) Provided to reduce ground bounce and improve power supply by-passing NOTE This pin is NOT a substitute for VSS pin (pin 22) Port 0 Port 0 is an 8-bit open drain bidirectional IO port As an output port each pin can sink several LS TTL inputs Port 0 pins that have 1’s written to them float and in that state can be used as high-im- pedance inputs 270961 – 2 Example AN87C51FAFBFC indicates an automotive temperature range version of the 87C51FAFBFC in a PLCC package with 16 Kbyte32 Kbyte EPROM program memory Figure 2 Package Options Table 1 Temperature Options Temperature Temperature Operating Burn-In Classification Designation Temperature Options C Ambient Extended T b 40 to a85 Standard L b 40 to a85 Extended Automotive A b 40 to a125 Standard B b 40 to a125 Extended 3 |
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