DS80C400 Maxim, DS80C400 Datasheet - Page 23

• Manufacturer Part Number: DS80C400
• Description: The DS80C400 network microcontroller offers the highest integration available in an 8051 device
• Manufacturer: Maxim

(V
Note 1: Specifications to -40°C are guaranteed by design and not production tested.
Note 2: There is no OWSTP timing difference for sending out and receiving bits within a byte. The difference comes when the last bit of the byte
Note 3: When performing a read versus a write time slot, the master provides the same active time for write 1 and write 0. However, the
Note 4: This parameter is the time delay until the master begins to monitor the OW pin level. If the line is already high, then OWSTP is enabled.
Note 5: The very first bit in a byte has an extended turn-off time of 4µs because of the order of states that the 1-Wire master state machine
OWSTP
OWSTP PIN TIMING
Active Time for Presence Detect
Active Time for Presence Detect Recovery
Active Time for Write 1 Recovery (Notes 2, 3)
Active Time for Write 0 Recovery (Notes 2, 3)
Delay Time for Presence Detect
Delay Time for Presence Detect Recovery (Note 4)
Delay Time for Write 1/Write 0 Recovery
Turn-Off Time for 1-Wire Reset
Turn-Off Time for Write 1/Write 0 (Note 5)
CC3
= 3.0V to 3.6V, V
has been completely sent. At this point, the signal is either enabled continuously until the next reset or time slot begins, or enabled only
for active time write 1 or write 0.
Schmitt-triggered input from the OW line is sensed every 1µs for a high value. If OW is high, the OWSTP signal is enabled. If the OW
line is low, the OWSTP signal remains disabled until a high state is sensed. In all write time slots, a high is sensed immediately.
If not, it waits to enable OWSTP until the next state machine clock (1µs or 50ns) after the OW line recovers.
must go through.
PIN TIMING CHARACTERISTICS (Note 1)
PARAMETER
CC1
= 1.8V ±10%, T
A
= -40°C to +85°C.)
SYMBOL
t
t
t
t
t
t
t
t
t
DLY1
DLY2
DLY3
OFF1
OFF2
23 of 97
ON1
ON2
ON3
ON4
399.2
51.2
MIN
6.4
6.4
0.8
0.8
1.6
0.8
STANDARD
8
MAX
499
10
64
8
8
1
1
2
1
MIN
31.2
0.8
7.2
0.8
0.8
0.8
1.6
0.8
OVERDRIVE
8
MAX
10
39
1
9
1
1
1
2
1
UNITS
µs
µs
µs
µs
µs
µs
µs
µs
µs