LM75A_4 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 04 — 10 July 2007 16 of 24
NXP Semiconductors
LM75A
Digital temperature sensor and thermal watchdog
12. Dynamic characteristics
[1] These specifications are guaranteed by design and not tested in production.
[2] The data hold time minimum value is 10 ns for the SCL clock period of 10 µs or higher.
Table 18. I
2
C-bus interface dynamic characteristics
[1]
V
CC
= 2.8 V to 5.5 V; T
amb
=
−
55
°
C to +125
°
C; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
T
CLK
SCL clock period see Figure 12 2.5 - - µs
t
HIGH
HIGH period of the SCL clock 0.6 - - µs
t
LOW
LOW period of the SCL clock 1.3 - - µs
t
HD;STA
hold time (repeated) START condition 100 - - ns
t
SU;DAT
data set-up time 100 - - ns
t
HD;DAT
data hold time
[2]
0--ns
t
SU;STO
set-up time for STOP condition 100 - - ns
t
f
fall time SDA and OS outputs;
C
L
= 400 pF; I
OL
=3mA
- 250 - ns
Fig 12. Timing diagram
002aad031
T
CLK
t
HIGH
t
HD;STA
t
SU;DAT
t
HD;DAT
t
LOW
t
SU;STO
SCL
SDA
