AUTOMOTIVE 87C5487C54-20

DATA SHEET REVISION HISTORY

The following are key differences between this data sheet and the -003 version of the data sheet

1 The data sheet has been revised to include the 20 MHz 87C54 The title was changed from 87C54 to

87C5487C54-20

2 RST pin in Figure 3 has been changed to RESET pin

5 87C54-20 AC Timings have been added to the External Memory Characteristics Table

The following are key differences between this data sheet and the -002 version of the data sheet

1 ‘‘NC’’ pin labels changed to ‘‘Reserved’’ in Figure 3

2 Capacitor value for ceramic resonators deleted in Figure 4

3 Replaced A0 – A15 with P10 – P17 P20 – P25 (EPROM programming and verification waveforms)

4 Replaced D0 – D7 with P0 (EPROM programming and verification waveforms)

The following are the key differences between the -001 and the -002 versions of this data sheet

1 The RST description has been modified to clarify the reset operation when the oscillator is not running

2 Figure 4 (Oscillator Connections) has been changed for Ceramic Resonators

3 A description of RFI Reduction Mode has been added

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