DS2430AP+ Dallas Semiconductor, DS2430AP+ Datasheet - Page 4

• Manufacturer Part Number: DS2430AP+
• Description: 1-W EEPROM 256B, TSOC
• Manufacturer: Dallas Semiconductor

Specifications of DS2430AP+

• Capacitance, Input: 800 pF
• Capacitance, Output: 800 pF
• Current, Operating: 5 μA
• Data Retention: 10 yrs.
• Density: 256
• Interface: 1-Wire
• Memory Type: EEPROM
• Organization: 1K×1
• Package Type: TSOC
• Temperature, Operating: -40 to +85 °C
• Voltage, Input, High: 2.2 V
• Voltage, Input, Low: 0.8 V
• Voltage, Output, High: 6 V
• Voltage, Output, Low: 0.4 V
• Voltage, Supply: 2.8 to 6 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

NOTES:
1) All voltages are referenced to ground.
2) V
3) Input load is to ground.
4) An additional reset or communication sequence cannot begin until the reset high time has expired.
5) Read data setup time refers to the time the host must pull the 1-Wire bus low to read a bit. Data is
6) V
7) Capacitance on the data pin could be 800pF when power is first applied. If a 5kΩ resistor is used to
8) The Reset Low Time (t
9) Under certain low voltage conditions V
10) The Copy Scratchpad takes 10ms maximum, during which the voltage on the 1-Wire bus must not fall
11) Depending on the 1-Wire communication speed and the bus load characteristics, the optimal pullup
12) The optimal sampling point for the master is as close as possible to the end time of the 15μs t
13) The duration of the low pulse sent by the master should be a minimum of 1μs with a maximum value
guaranteed to be valid within 1μs of this falling edge.
pull up the data line to V
normal communications.
otherwise it could mask or conceal interrupt pulses.
guarantee a Presence Pulse.
below 2.8V.
resistor value will be in the 1.5kΩ to 5kΩ range.
period without exceeding t
time for the pullup resistor to recover to a high level. For a Read-Zero Time slot, it ensures that a read
will occur before the fastest 1-Wire device(s) releases the line.
as short as possible to allow time for the pullup resistor to recover the line to a high level before the 1-
Wire device samples in the case of a Write-One Time or before the master samples in the case of a
Read-One Time.
PUP
IH
is a function of the external pullup resistor and V
= external pullup voltage.
RSTL
PUP
RDV
) should be restricted to a maximum of 960μs, to allow interrupt signaling;
, 5μs after power has been applied the parasite capacitance will not affect
. For the case of a Read-One Time slot, this maximizes the amount of
ILMAX
16 of 16
may have to be reduced to as much as 0.5V to always
PUP
.
RDV