8XC51SL Datasheet, PDF (19/23 Pages) Intel Corporation – LOW VOLTAGE 8XC51SL KEYBOARD CONTROLLER

8XC51SL LOW VOLTAGE 8XC51SL
See Table 4 for proper input on these pins
Figure 8 Programming Verifying the OTP
272271 – 10
Figure 9 Programming Signal’s Waveforms
272271 – 11
PROGRAM VERIFY
Program verify may be done after each byte that is
programmed or after a block of bytes that is pro-
grammed In either case a complete verify of the
array will ensure that it has been programmed cor-
rectly
READING THE SIGNATURE BYTES
The 8XC51SL and Low Voltage 8XC51SL each have
three signature bytes in locations 30H 31H and
60H To read these bytes follow the procedure for
EPROM verify but activate the control lines provid-
ed in Table 4 for Read Signature Byte
Location
30H
31H
60H
87C51SL
89H
58H
BBH
Contents
83C51SL
Low Voltage
87C51SL
89H
89H
58H
58H
3BH
ABH
Low Voltage
83C51SL
89H
58H
2BH
19