ZLF645S2864GP0001 Maxim Integrated, ZLF645S2864GP0001 Datasheet - Page 36
![no-image](/images/no-image-200.jpg)
ZLF645S2864GP0001
Manufacturer Part Number
ZLF645S2864GP0001
Description
8-bit Microcontrollers - MCU Crimzon Flash Infrared MCU
Manufacturer
Maxim Integrated
Datasheet
1.ZLF645E0H4864G2204.pdf
(201 pages)
Specifications of ZLF645S2864GP0001
Core
Z8
Data Bus Width
8 bit
Maximum Clock Frequency
8 MHz
Program Memory Size
64 KB
Data Ram Size
1 KB
Operating Supply Voltage
2 V to 3.6 V
Interface Type
UART
Number Of Programmable I/os
5
Number Of Timers
2 x 8 bit, 1 x 16 bit
Processor Series
ZLF645
Program Memory Type
Flash
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PS026408-1208
Port 4
Note:
Comparator Inputs
Comparator Outputs
In ANALOG mode, P31 and P32 have a comparator front end. The comparator reference
is supplied by P33 and P
corresponding IRQ1 are diverted to the Stop Mode Recovery sources (excluding P31, P32,
and P33) as displayed in
the Port 3 input register, which then generates IRQ1.
Comparators are powered down by entering STOP mode. For P30:P33 to be used as an
SMR source, these inputs must be placed into DIGITAL mode.
The comparators can be programmed to output on P34 and P37 by setting bit 0 of the
PCON register.
Port 4 is an 8-bit bidirectional CMOS-compatible I/O port. Its eight I/O lines can be
independently configured under software control as inputs or outputs. Port 4 is always
available for I/O operation. A flash programming option bit is available to connect eight
pull-up transistors on this port. Bits programmed as outputs are globally programmed as
either push/pull or open-drain. The POR function resets with the eight bits of Port 4
[P47:40] configured as inputs.
Figure 9
REF1
Figure 11
. In ANALOG mode, the P33 internal data latch and its
on page 24. In DIGITAL mode, P33 is used as bit 3 of
on page 29 displays the Port 4 configuration.
Product Specification
Port 4
28
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