se98pw NXP Semiconductors, se98pw Datasheet - Page 24

• Manufacturer Part Number: se98pw
• Description: Se98 So-dimm Smbus/i2c-bus Temperature Sensor
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 25.
V
The AC specifications fully meet or exceed SMBus 2.0 specifications, but allow the bus to interface with the I
to 400 kHz.
[1]
[2]
[3]
[4]
SE98_2
Product data sheet
Symbol
f
t
t
t
t
t
t
t
t
t
t
t
t
SCL
LOW
HIGH
BUF
HD;STA
HD;DAT
SU;DAT
SU;STA
SU;STO
r
f
f(o)
to(SMBus)
DD
Fig 19. AC timing diagram
= 3.0 V to 3.6 V; T
Delay from SDA START to first SCL HIGH-to-LOW transition.
Delay from SCL HIGH-to-LOW transition to SDA edges.
Delay from SCL LOW-to-HIGH transition to restart SDA.
LOW period to reset SMBus.
SDA
SCL
SMBus AC characteristics
Parameter
SCL clock frequency
LOW period of the SCL clock
HIGH period of the SCL clock
bus free time between a STOP and
START condition
hold time (repeated) START condition
data hold time
data set-up time
set-up time for a repeated START
condition
set-up time for STOP condition
rise time of both SDA and SCL signals
fall time of both SDA and SCL signals
output fall time
SMBus time-out time
P
t
BUF
amb
S
= 20 C to +120 C; unless otherwise specified. These specifications are guaranteed by design.
t
HD;STA
t
LOW
t
HD;DAT
t
r
Rev. 02 — 7 January 2008
Conditions
10 % to 10 %
90 % to 90 %
10 % of SDA to
90 % of SCL
t
SU;DAT
t
HIGH
t
f
t
SU;STA
SO-DIMM SMBus/I
S
[1]
[2]
[3]
[4]
Min
0
1.3
0.6
4.7
4.7
300
250
250
0.6
-
-
-
25
t
HD;STA
2
C-bus temperature sensor
Typ
-
-
-
-
-
-
-
-
-
-
-
-
-
t
SU;STO
© NXP B.V. 2008. All rights reserved.
Max
400
-
-
-
-
-
-
-
-
300
300
250
35
2
002aab235
C-bus from DC
SE98
P
Unit
kHz
ns
ns
ns
ns
ns
ns
ms
24 of 32
s
s
s
s
s