AUTOMOTIVE 87C51FAFBFCFC-20

DATA SHEET REVISION HISTORY

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

1 The data sheet has been revised from the 87C51FB87C51FC to the 87C51FA87C51FB87C51FC

87C51FC-20 and includes the 20 MHz 87C51FC

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

3 Reference to Application Note AP-486 was added on page 5

6 20 MHz 87C51FC timings information were added to the External Program Memory Characteristics table

DATA SHEET REVISION HISTORY

The following are key differences between this data sheet and the -001 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)

5 Combined the 87C51FB and 87C51FC data sheets

The following are the key differences between the previous 87C51FB data sheet versions and this new data

sheet (rev-001)

1 The data sheet has been revised from a 83C51FB87C51FB to an 87C51FB data sheet only

3 The 87C51FB is now offered in a 35 MHz – 20 MHz version

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

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

6 A description of RFI Reduction Mode has been added

8 Note 1 of the DC Characteristics has been clarified

9 The External Clock Drive diagram has been modified to include 16 MHz and 20 MHz device types

10 The Float Waveforms diagram has been revised for greater clarity

11 Table 4 EPROM Programming Modes has been modified included logic levels for P33 and three pro-

gram lock bits

12 The Encryption Array section now states that six address lines are used to select a byte from the Encryp-

tion Array instead of five

75 mA

18