STW4811M_10 Datasheet, PDF (64/85 Pages) STMicroelectronics – Power management for multimedia processors

Electrical and timing characteristics
STw4811M/STw4811N
5.3.6
Power supply monitoring
This block monitors the VCORE and VIO_VMEM output voltage. If VCORE or VIO_VMEM
drops below the threshold, the multimedia processor is reset.
Table 44. Power supply monitoring
Symbol
Description
Test conditions
Threshold
T_HCORE(1) Threshold VCORE
T_HVIO(1)
Threshold
VIO_VMEM
Comparators
V_BAT
t_RES
H_YFALL
H_YRIS
Supply voltage
Response time
Hysteresis (input
voltage falling)
Hysteresis (input
voltage rising)
1. Guaranteed by design
Min.
Typ.
Max. Units
-3% VCORE-150 +3%
mV
-3%
1.65
+3%
V
2.7
3.6
100
26
+4
4.8
V
ns
mV
mV
5.4
5.4.1
Digital specifications
CMOS input/output static characteristics: I2C interface
Table 45. CMOS input/output static characteristics: I²C interface
Symbol
Description
Test conditions
Min.
Typ.
Max.
I²C interface⁽¹⁾
V_IL
Low level input
voltage
V_IH
High level input
voltage
0.7*V_IO
I_IL
Low level input
current
-1.0
I_IH
High level input
current
-1.0
V_OL
Low level output
voltage
IOL = 3mA
(with open drain or
open collector)
V_OH
High level output
voltage
IOL = 3mA
(with open drain or
open collector)
0.8*V_IO
0.3*V_IO
1.0
1.0
0.2*V_IO
1. Vio is for VIO_VMEM
Units
V
V
µA
µA
V
V
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