Z86E09 Datasheet, PDF (24/38 Pages) Zilog, Inc. – Z8 CMOS OTP Microcontrollers

Z86E02/E04/E08/E09 SL1995
Z8 CMOS OTP Microcontrollers
19
9. If the address location is not programmed after the 25th try, then the device is
failed.
10. If the address location shows that it is programmed, then the address location
is then overprogrammed with three times the total accumulated program time.
Figure 12. OPTION BIT PROGRAM AND VERIFY Functional Timing
5V
V_{CC 0V}
V_IH
CLEAR
V_IL
V_IH
EPM
V_IL
(CE) ^VIH
V_IL
V_PP ^VIH
V_IL
CLOCK ^VIH
V_IL
OE ^VIH
V_IL
PGM ^VIH
V_IL
3 x N x 1ms
Data
(Port 2)
Data In
Data
Out
Data In
Data Out
Table 12. OPTION BIT PROGRAM AND VERIFY Mode Conditions
EPROM Signal
D0–D3
D4–D7
GND
V_CC
CE
NC
18-Pin DIP/SOIC
Pins 15, 16, 17, 18
Pins 1, 2, 3, 4
Pin 14
Pin 5
Pin 7
Pin 6
20-Pin SSOP
Pins 17, 18, 19, 20
Pins 1, 2, 3, 4
Pins 15, 16
Pins 5, 6
Pin 8
Pin 7
Forced State
See Figure 12
See Figure 12
GND
5V
V_IL
No Connection
PS009201-0301
Programming Specification