Z86E7216PSG Zilog, Z86E7216PSG Datasheet - Page 30
![IC 16K OTP ZIRC 40-DIP](/photos/6/57/65796/269-40-dip_sml.jpg)
Z86E7216PSG
Manufacturer Part Number
Z86E7216PSG
Description
IC 16K OTP ZIRC 40-DIP
Manufacturer
Zilog
Series
Z8®r
Datasheet
1.Z86E7216PSC.pdf
(102 pages)
Specifications of Z86E7216PSG
Core Processor
Z8
Core Size
8-Bit
Speed
16MHz
Peripherals
LVD, POR, WDT
Number Of I /o
31
Program Memory Size
16KB (16K x 8)
Program Memory Type
OTP
Ram Size
748 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
40-DIP (0.620", 15.75mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Connectivity
-
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Z86E72/73
OTP Microcontroller
26
dictated by the I/O direction to Port 0 of the upper nibble P07–P04. The lower nib-
ble must have the same direction as the upper nibble.
For external memory references, Port 0 can provide address bits A11–A8 (lower
nibble) or A15–A8 (lower and upper nibble) depending on the required address
space. If the address range requires 12 bits or less, the upper nibble of Port 0 can
be programmed independently as I/O while the lower nibble is used for address-
ing. If one or both nibbles are needed for I/O operation, they must be configured
by writing to the Port 0 mode register. After a hardware reset, Port 0 is configured
as an input port.
Port 0 is set in the High-Impedance Mode if selected as an address output state
along with Port 1 and the control signals /AS, /DS, and R//W.
A software option is available to program 0.4 V
CMOS trip inputs on P00–P03.
DD
This allows direct interface to mouse/trackball IR sensors.
Ω
±
An optional 200
50% K
resistive transistor pull-up is available as a software
option of all Port 0 bits with nibble select.
These pull-ups are disabled when configured (bit by bit) as an output. See
Figure
14.
PS008704-0507
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