DS2413 Maxim, DS2413 Datasheet - Page 17

• Manufacturer Part Number: DS2413
• Description: The DS2413 is a dual-channel programmable I/O 1-Wire® chip
• Manufacturer: Maxim

PIO ACCESS READ EXAMPLE
Read the state of the PIOs 3 times.
With only a single DS2413 connected to the bus master, the communication looks like this:
PIO ACCESS WRITE EXAMPLE
Set both PIOs to 0 and then set PIOA to 1. Both PIOs are pulled high to V
With only a single DS2413 connected to the bus master, the communication looks like this:
Note: Usually, the PIO pin state and PIO Output Latch State are the same. To read from a PIO, the PIO Output
Latch must be 1. If the PIO pin is then pulled low by a switch or external circuitry, the output latch state and pin
state are different.
PACKAGE INFORMATION
For the latest package outline information, go to www.maxim-ic.com/packages. Note that a “+”, “#”, or “-“ in the
package code indicates RoHS status only. Package drawings may show a different suffix character, but the
drawing pertains to the package regardless of RoHS status.
PACKAGE TYPE
MASTER MODE
MASTER MODE
6 TSOC
6 TDFN
RX
RX
RX
RX
RX
RX
RX
RX
RX
TX
TX
TX
TX
TX
TX
TX
TX
TX
TX
TX
TX
PACKAGE CODE
T633+2
D6+1
DATA (LSB FIRST)
DATA (LSB FIRST)
<3 data bytes>
(Presence)
(Presence)
(Presence)
(Presence)
(Reset)
(Reset)
(Reset)
(Reset)
CCh
CCh
FCh
AAh
FDh
AAh
5Ah
C3h
F5h
03h
F0h
02h
DOCUMENT NO.
21-0382
21-0137
17 of 18
Reset pulse
Presence pulse
Issue “Skip ROM” command
Issue “PIO Access Read” command
Read 3 PIO samples
Reset pulse
Presence pulse
Reset pulse
Presence pulse
Issue “Skip ROM” command
Issue “PIO Access Write” command
Write new PIO output state
Write inverted new PIO output state
Read confirmation byte
Read new PIO pin status
Write new PIO output state
Write inverted new PIO output state
Read confirmation byte
Read new PIO pin status
Reset pulse
Presence pulse
LAND PATTERN
CC
90-0321
90-0058
or V
PUP
COMMENTS
by a resistor.
COMMENTS