Production Data
WM8352
7.7 LED DRIVERS
Test Conditions
TA = +25ºC unless otherwise noted.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ISINKA, ISINKB
Sink Current
duty cycle = 20%
continuous
200
40
mA
ISINKC, ISINKD, ISINKE
Sink Current
20
mA
V
Output voltage drop
10mA load
0.8
7.8 GENERAL PURPOSE INPUTS / OUTPUTS (GPIO)
Test Conditions
TA = +25ºC unless otherwise noted.
PARAMETER
GPIO0 to GPIO3
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input HIGH Level
VIH
VIL
0.7×VRTC
0.9×VRTC
V
V
Input LOW Level
0.3×VRTC
0.1×VRTC
Output HIGH Level
Output LOW Level
Sink / source current
Pull-up resistance to VRTC
Pull-down resistance
GPIO4 to GPIO9
VOH
VOL
sinking 2 mA
V
sourcing 2 mA
V
mA
kꢀ
kꢀ
RPU
RPD
GPn_PU = 1
GPn_PD = 1
310
225
Logic levels
See Section 7.9
Sink / source current
Pull-up resistance to DBVDD
Pull-down resistance
GPIO10 to GPIO12
Input HIGH Level
mA
kꢀ
kꢀ
RPU
RPD
GPn_PU= 1
GPn_PD = 1
220
144
VIH
VIL
2.0
V
V
V
Input LOW Level
0.9
Output HIGH Level
VOH
sinking 2 mA
0.9×
LINE
Output LOW Level
VOL
sourcing 2 mA
0.1×
V
GPIO_VD
D
Sink / source current
Pull-up resistance to LINE
Pull-down resistance
mA
kꢀ
kꢀ
RPU
RPD
GPn_PU = 1
GPn_PD = 1
250
135
PD, February 2011, Rev 4.4
23
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
