87C51F Intel Corporation, 87C51F Datasheet - Page 18

• Manufacturer Part Number: 87C51F
• Description: CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
• Manufacturer: Intel Corporation

AUTOMOTIVE 87C51FA FB FC FC-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 87C51FB 87C51FC to the 87C51FA 87C51FB 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
4 The I
5 The 20 MHz I
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
The following are the key differences between the previous 87C51FB data sheet versions and this new data
sheet (rev-001)
10 The Float Waveforms diagram has been revised for greater clarity
11 Table 4 EPROM Programming Modes has been modified included logic levels for P3 3 and three pro-
12 The Encryption Array section now states that six address lines are used to select a byte from the Encryp-
13 The I
18
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 P1 0– P1 7 P2 0– P2 5 (EPROM programming and verification waveforms)
4 Replaced D0 – D7 with P0 (EPROM programming and verification waveforms)
5 Combined the 87C51FB and 87C51FC data sheets
1 The data sheet has been revised from a 83C51FB 87C51FB to an 87C51FB data sheet only
2 The data sheet has been revised to specify AC and DC parameters to V
3 The 87C51FB is now offered in a 3 5 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
7 V
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
87C51FC-20 and includes the 20 MHz 87C51FC
5V
gram lock bits
tion Array instead of five
75 mA
OH1
g
CC
PP
10%
I
IL
specification has been corrected in the D C Characteristics section
specification in the EPROM Programming and Verification Characteristics has been increased to
I
TL
CC
and I
max values have been added
CC
DC Characteristics have been revised
CC
e
5V
g
20% instead of V
CC
e