Datasheet revision history – Intel 83C51FA User Manual
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AUTOMOTIVE 80C51FA/83C51FA
AC TESTING INPUT, OUTPUT WAVEFORMS
270501±17
AC Inputs during testing are driven at V
CC
b
0.5V for a Logic ``1''
and 0.45V for a Logic ``0''. Timing measurements are made at V
IH
min for a Logic ``1'' and V
OL
max for a Logic ``0''.
FLOAT WAVEFORMS
270501±18
For timing purposes a port pin is no longer floating when a
100 mV change from load voltage occurs, and begins to float
when a 100 mV change from the loaded V
OH
/V
OL
level occurs.
I
OL
/I
OH t g
20 mA. This is for Ports 1, 2 and 3.
DATASHEET REVISION HISTORY
The following are key differences between this datasheet and the -007 version:
1. Product prefix variables are now indicated with an
x.
The following are key differences between this datasheet and the -006 version:
1. The ``preliminary'' status was dropped and replaced with production status (no label).
2. Trademarks were updated.
The following are key differences between the -006 and the -005 version of the datasheet:
1. Preliminary notice has been added to the Title page.
2. Figure 3 Pin Connections has been modified, RST pin is now RESET pin.
3. RST pin description is now RESET pin description.
4. Figure 6 I
CC
vs. Frequency has been corrected to show test conditions.
5. I
CC
Max spec has been corrected.
6. A.C. Characteristic table 1/T
CLCL
spec has been changed to have a Max frequency of 16 MHz.
The following are key differences between the -005 and the -004 version of the datasheet:
1. ``NC'' pin labels changed to ``Reserved'' in Figure 3.
2. Capacitor value for ceramic resonators deleted in Figure 4.
The following are the key differences between the -003 version of the 8XC51FA datasheet and the -004
version of the 80C51FA/83C51FA datasheet:
1. Removed references to EPROM from the 8XC51FA datasheet.
2. Revised Figure 4, ``Oscillator Connections''.
The following are the key differences between the -002 and the -003 version of this datasheet:
1. Dropped word ``maximum'' from I
OL
in the Absolute Maximum Rating table.
2. Dropped EA from I
LI
specification of the DC table.
3. Corrected TQVWH specification (from TTCLCL
-7
0 to TCLCL
-1
50).
4. Added note on external clock capacitance loading.
5. Changed the title to 80C51FA/83C51FA Event-Control CHMOS Single-Chip 8-Bit Microcontroller.
6. Added pin count to Figure 1.
7. Changed I
LI
to
g
10 μA.
8. Added I
CC
Power Down Mode 150 nA.
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