SE97 Datasheet, PDF (43/54 Pages) NXP Semiconductors – DDR memory module temp sensor with integrated SPD, 3.3 V

NXP Semiconductors
SE97
DDR memory module temp sensor with integrated SPD, 3.3 V
[9] The write cycle time is the time elapsed between the STOP command (following the write instruction) and the completion of the internal
write cycle. During the internal write cycle, SDA is released by the slave and the device does not acknowledge external commands.
SCL
t_BUF
SDA
P
S
t_LOW
t_r
t_f
t_HD;STA
t_HD;DAT
t_HIGH
t_SU;DAT
t_SU;STA
S
V_IH
V_IL
t_HD;DAT
t_SU;STO
V_IH
V_IL
P
SCL
SDA
t_SU;STO
STOP
condition
S = START condition
P = STOP condition
Fig 39. AC waveforms
t_W
write cycle
t_SU;STA
START
condition
V_IH
V_IL
V_IH
V_IL
002aae750
SE97_5
Product data sheet
Rev. 05 — 6 August 2009
© NXP B.V. 2009. All rights reserved.
43 of 54