DS80C400_09 Datasheet, PDF (21/97 Pages) Maxim Integrated Products – Network Microcontroller

DS80C400 Network Microcontroller
NONMULTIPLEXED, 9-CYCLE DATA MEMORY CE0-7 WRITE
PORT 4 – CE0  3
PORT 6 – CE4  7
PORT 4/6 ADDRESS
PORT 7
A16 -A21
A16 -A21
A16 -A21
A16 -A21
OW PIN TIMING CHARACTERISTICS (Note 1)
(V_CC3 = 3.0V to 3.6V, V_CC1 = 1.8V ±10%, T_A = -40°C to +85°C.)
PARAMETER
Transmit Reset Pulse Low Time
(Note 2)
Transmit Reset Pulse High Time
(Note 2)
Wait Time for Transmit of Presence
Pulse (Notes 2, 3)
Wait Time for Absence of Presence
Pulse (Notes 2, 4)
Presence Pulse Width (Note 2)
Presence Pulse Sampling Time
(Note 2)
Read/Write Data Time Slot
Low Time for Write 1
Low Time for Write 0
Write Data Sampling Time
Read Data Sampling Time
SYMBOL
t_RSTL
t_RSTH
t_PDH
t_PDHCNT
t_PDL
t_PDS
t_SLOT
t_LOW1
t_LOW0
t_WDV
t_RDV
STANDARD
MIN
MAX
500.8
626
508.8
636
15
60
60
75
60
240
24
31
68.8
86
4.8
6
62.4
78
15
60
12
15
OVERDRIVE
MIN
MAX
50.4
63
59.2
74
2
6
6.4
8
8
24
2.4
4
12
15
0.8
1
8
10
2
6
1.6
2
LONGLINE
MIN
MAX
500.8
626
508.8
636
15
60
60
75
60
240
30.4
38
68.8
86
7.2
9
62.4
78
25
60
20
25
UNITS
s
s
s
s
s
s
s
s
s
s
s
Note 1: Specifications to -40°C are guaranteed by design and not production tested.
Note 2: In PMM mode, the master pulls the line low after the first 15s for the remainder of the standard speed 1-Wire routine.
Note 3: This parameter quantifies the wait time for the slave devices to respond to the reset pulse and is dependent on the slave device timing.
Note 4: This parameter quantifies the wait time for the case when no presence pulse detected.
Note 5: The maximum timing figures shown apply only when an exact 1-Wire clock frequency can be achieved from the microcontroller input
clock.
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