ET
AS
Te
ch
nic
al D
ata
XE
TK
-S
31
.0
-
Us
er
G
uid
e
37
7.9
Electrical Characteristics
7.9.1
ECU Interface Characteristics
Parameter
Symbol
Condition
1)
Min
Typ
Max
Unit
ECU Standby RAM Output Voltage (1.25 V selected)
VDDSTBY
max. 500
mA load
1.19
1.25
1.31
V
ECU Standby RAM Output Voltage (1.30 V selected)
VDDSTBY
max. 500
mA load
1.23
1.3
1.34
V
VDDPSTBY Output Voltage
VDDPSTBY
max. 80
mA load
3.14
3.3
3.46
V
Cal_Wakeup Output Voltage
CAL_WAKEUP
Ubatt = 6
V to 36
V,
load = 0 to 50
mA
Ubatt -
1
V
Ubatt
V
ECU Power Supply Supervision Voltage (3.3 V selected)
VDDP
ECU on
2.48
2.58
2.68
V
ECU off
2.33
2.43
2.53
V
IDDP
VDDP = 3.3
V
200
µA
ECU Power Supply Supervision Voltage (5.0V selected)
VDDP
ECU on
2.98
3.08
3.18
ECU off
2.83
IDDP
VDDP = 5.0
V
300
µA
ECU Standby RAM Supervision
VDDSTBY /
VDDSTBY_SENSE
VDDSTBY
1.02
1.12
1.22
V
VDDSTBY
1
1.1
1.2
V
IDDSTBY
VDDSTBY = 1.25
V
73
µA
1)
: VDDP
ECU Power Supply off
ECU Power Supply on
VDDP
ECU Power Supply on
ECU Power Supply off
VDDSTBY
ECU Standby RAM Power off
ECU Standby RAM Power on
VDDSTBY
ECU Standby RAM Power on
ECU Standby RAM Power off
2)
: Current drawn from XETK VDDSTBY supply must not exceed 600
mA