z8e001 ZiLOG Semiconductor, z8e001 Datasheet - Page 42
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z8e001
Manufacturer Part Number
z8e001
Description
Feature-rich Z8plus One-time Programmable Otp Microcontroller
Manufacturer
ZiLOG Semiconductor
Datasheet
1.Z8E001.pdf
(46 pages)
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Z8E001
Z8Plus OTP Microcontroller
INPUT PROTECTION
All I/O pins on the Z8E001 have diode input protection.
There is a diode from the I/O pad to V
41).
42
Figure 41. I/O Pin Diode Input Protection
PIN
V
V
CC
SS
CC
and V
SS
P R E L I M I N A R Y
(Figure
However, on the Z8E001, the RESET pin has only the input
protection diode from pad to V
The high-side input protection diode was removed on this
pin to allow the application of high voltage during the OTP
programming mode.
For better noise immunity in applications that are exposed
to system EMI, a clamping diode to V
be required to prevent entering the OTP programming mode
or to prevent high voltage from damaging this pin.
Figure 42. RESET Pin Input Protection
RESET
PIN
SS
V
SS
(Figure 42).
DS001101-Z8X0400
CC
from this pin can
ZiLOG