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| Z86E09 Datasheet, PDF (12/38 Pages) Zilog, Inc. – Z8 CMOS OTP Microcontrollers | |||
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Z86E02/E04/E08/E09 SL1995
Z8 CMOS OTP Microcontrollers
7
Figure 6. Unlock Sequence
IRESET
VCC
5V
0V
VIH
CLEAR VIL
EPM
VIH
VIL
XIN (CE)
VIH
VIL
VIH
VPP VIL
VIH
CLOCK VIL
OE
VIH
VIL
PGM
VIH
VIL
Port 27
VIH
VIL
1
Port 26
VIH
VIL
Port 25
VIH
VIL
Port 24
VIH
VIL
Port 23
VIH
VIL
Port 22
VIH
VIL
Port 21
VIH
VIL
Port 20
VIH
VIL
XOUT
No Connection
Note:
1. The device enters EPROM mode at this point when XIN goes Low.
PS009201-0301
Programming Specification
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