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Z86E72 Datasheet(PDF) 55 Page - Zilog, Inc.

No. de Pieza. Z86E72
Descripción  OTP IR MICROCONTROLLERS
Descarga  74 Pages
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Fabricante  ZILOG [Zilog, Inc.]
Página de inicio  http://www.zilog.com
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Z86E72 Datasheet(HTML) 55 Page - Zilog, Inc.

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Z86E72/E73
OTP IR Microcontrollers
DS96LVO1100
P R E L I M I N A R Y
1-55
1
Low Voltage Protection. An on-board Voltage Compara-
tor checks that VCC is at the required level to ensure cor-
rect operation of the device. Reset is globally driven if VCC
is below VLV (Low Voltage). The minimum operating volt-
age varies with the temperature and operating frequency,
while VLV varies with temperature only.
Software Selectable Options. There are four Software
Selectable Options to choose from which corresponds to
the ROM based parts mask options. Register (F0) EH OTP
byte is where these options are controlled; these options
are:
Note: The RC oscillator Xtal1/2 option is invoked during
OTP programming as a user-selectable item.
The Low Voltage trip voltage (VLV) is less than 3.0V under
the following conditions:
Maximum (VLV) Conditions:
TA = 0°C, +70°C Internal clock frequency equal to or less
than 8.0 MHz
Note: The internal clock frequency is one-half the external
clock frequency.
The device functions normally above 3.0V under all condi-
tions. The minimum functionality point below 3V is to be
defined. The VLV is a function of temperature and process
parameters.
Bit Name
Reg(0F)EH
Port 0 Pull-ups (lower nibble)
On/Off
Port 0 Pull-ups (upper nibble)
On/Off
Port 2 Pull-ups
On/Off
Mouse/Normal
M/N
Figure 45. Typical Z86E7X Low Voltage
vs Temperature at 8 MHz
0
15
25
35
45
55
T
B
D
VLV
Temperature


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