tle4998c Infineon Technologies Corporation, tle4998c Datasheet - Page 15

• Manufacturer Part Number: tle4998c
• Description: Tle4998c-programming Guide
• Manufacturer: Infineon Technologies Corporation

3.3
Table 7
Parameter
V
V
OUT data out high level
OUT data out low level
OUT data in high level
OUT data in low level
OUT data input current
V
V
Data in setup time
Data in hold time
Data out settling time
Time between frames
1) Prevent over-/ underswing during Vdd switching to avoid unexpected sensor behavior (e.g. undervoltage
2) Corresponds to the open drain specification in the data sheet.
3) Capability of external driver, especially during initial interface access (to overwrite device output).
4) Excact bitrates depend also on several further conditions, like length of cables (inductors) and the electrical
5) In interface mode, EMC influences or Vdd drops during and between frames may cause internally to stop the
Application Note
dd
dd
dd
dd
sensor reset).
behavior of the used programming device/setup. Furthermore the desired customer margins for the timing and
voltage levels may limit the bitrate even more. In case of problems try the typical recommended bitrate first and
optimize the timing based on measurements using the given system. Also temperatures outside the allowed
temperature range for the EEPROM programming are not considered in the above recommendation.
interface mode due to safety reasons; a power cycle is needed to allow interface access again.
clock high level
clock low level
clock high time
clock low time
Timing and Electrical Parameters for Programming
Electrical levels and interface timing
Symbol
V
V
V
V
V
V
I
t
t
t
t
t
t
CH
CL
SU
HLD
SET
MIN
O
dd,CLKHI
dd,CLKLOW
O,OHIGH
O,OLOW
O,IHIGH
O,ILOW
Limit Values
min.
9
4.8
-
-
50% V
-0.2
-5
2.5
2.5
1.5
2.3
-
10.0
13
dd
typ.
10
5.0
-
-
-
0.0
-
50
50
2.0
3.0
1.0
-
TLE4998C-Programming Guide
Interface Access Details - Part II
max.
11
5.2
-
-
V
0.1
5
-
-
-
-
1.7
-
dd
Unit Notes
V
V
V
V
V
V
mA
µs
µs
µs
µs
µs
µs
1)
this is V
2)
3)
exact bitrate
tbd
to rising V
after rising V
after rising V
5)
Rev 1.0, 2009-02
4)
dd
1)
dd
dd
dd