Z86E09 Zilog, Z86E09 Datasheet - Page 26
Z86E09
Manufacturer Part Number
Z86E09
Description
(Z86E04/E08/E09) CMOS Z8 OTP Microcontrollers
Manufacturer
Zilog
Datasheet
1.Z86E09.pdf
(38 pages)
- Current page: 26 of 38
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Power-Down Procedure
PS009201-0301
Figure 13. OPTION BIT READ Mode Functional Timing
The following steps outline the power-down operation of the Z86E0x device.
1. Set up the I/O pins per Figure 14 and Table 13.
2. CE is raised to V
3. EPM is lowered to GND.
4. V
5. V
6. PGM is lowered to GND.
7. OE is lowered to GND.
8. CE is lowered to GND.
9. V
CLOCK
CLEAR
(Port 2)
PGM
EPM
Data
PP
CC
CC
X
V
V
OE
CE
OUT
CC
PP
is lowered to GND.
is lowered from 5.0V to 2.0V.
is lowered to GND.
V
V
V
V
V
V
V
V
V
V
V
V
V
V
5V
0V
IH
IH
IH
IH
IH
IH
IH
IL
IL
IL
IL
IL
IL
IL
Not connected
IH
.
P r o g r a m m i n g S p e c i f i c a t i o n
Invalid
Z8 CMOS OTP Microcontrollers
Z86E02/E04/E08/E09 SL1995
Data Out
Invalid
21
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