Intel 80C51FA Datasheet Revision History, Ac Testing Input, Output Waveforms, Float Waveforms

AUTOMOTIVE 80C51FA/83C51FA

AC TESTING INPUT, OUTPUT WAVEFORMS FLOAT WAVEFORMS

270501±17

AC Inputs during testing are driven at VCCb 0.5V for a Logic ``1'' and 0.45V for a Logic ``0''. Timing measurements are made at VIH min for a Logic ``1'' and VOL max for a Logic ``0''.

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 VOH/V OL level occurs. IOL/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 ICC vs. Frequency has been corrected to show test conditions.

5.ICC 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 IOL in the Absolute Maximum Rating table.

2.Dropped EA from ILI specification of the DC table.

3.Corrected TQVWH specification (from TTCLCL -70 to TCLCL -150).

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 ILI to g 10 μA.

8.Added ICC Power Down Mode 150 nA.

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