Datasheet

Electrical Specifications
12−2
SLLS535E − April 2008TUSB6250
12.3 Electrical Characteristics for the Controller Digital Core, T
A
= 25°C, V
DD
= 3.3 V
±5%, V
SS
= 0 V (unless otherwise noted)
†
PARAMETER
TEST
CONDITIONS
MIN TYP MAX UNIT
V
OH
High-level output
LVCMOS I
OH
= −8 mA 0.8 V
DD
V
V
OH
High-level output
voltage
5-V failsafe TTL-compatible LVCMOS
I
OH
= −8 mA 2.4
V
Low-level output
LVCMOS open-drain I
OL
= −4 mA 0.22 V
DD
V
V
OL
Low-level output
voltage
LVCMOS
I
OL
= 8 mA
0.22 V
DD
V
V
OL
voltage
5-V failsafe TTL-compatible LVCMOS
I
OL
= −8 mA
0.5 V
V
IT
Input voltage For VREGEN pin V
I
= V
IH
0.3 V
DDA
0.7 V
DDA
V
V
hys
Hysteresis
LVCMOS V
I
= V
IH
0.22 V
DD
V
V
hys
Hysteresis
(V
IT+
− V
IT–
)
5-V failsafe TTL-compatible LVCMOS
V
I
= V
IH
0.22 V
DD
V
High-level input
LVCMOS V
I
= V
I
max ±1
I
IH
High-level input
current
5-V failsafe TTL-compatible LVCMOS
V
I
= 5.5 V,
V
DD
=3.3 V
±23
µA
Low-level input
LVCMOS V
I
= V
I
min ±1
I
IL
Low-level input
current
5-V failsafe TTL-compatible LVCMOS
V
I
= 0 V,
V
DD
= 3.3 V
±1
µA
I
OZ
Output leakage current (Hi-Z) V
I
= V
DD
or V
SS
±20 µA
¶
Applies to all signal pins except DP, DM, R1, RPU, XTAL1, and XTAL2.
12.4 Controller Input Supply Current, T
A
= 25°C, V
CC
= 3.3 V ±5%, V
SS
= 0 V (unless
otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Normal operation: USB high-speed, UDMA-4 write active 92
Normal operation: USB high-speed, PIO-4 write active 85
mA
I
DD
Input supply current
Normal operation: USB high-speed, ATA/ATAPI idle
78
mA
I
DD
Input supply current
Suspend state: controller in suspend with USB remote wakeup enabled.
Current draw from the external 1.5-kΩ pullup resistor is not included.
221 µA
12.5 Timing for 5-V Failsafe TTL Compatible LVCMOS I/O Buffer Used in the TUSB6250
ATA/ATAPI Interface, T
A
= 25°C, V
DD
= 3.3 V ±5%, V
SS
= 0 V (unless otherwise
noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
r
Rise time (time between 10% and 90% swing of 3.3 V)
Load: C
L
= 5 pF 1.33 2.76 3.09
ns
t
r
Rise time (time between 10% and 90% swing of 3.3 V)
Load: C
L
= 15 pF
2.21 3.84 4.98
ns
t
f
Fall time (time between 90% and 10% swing of 3.3 V)
Load: C
L
= 5 pF 1.21 2.22 2.83
ns
t
f
Fall time (time between 90% and 10% swing of 3.3 V)
Load: C
L
= 15 pF 1.97 3.31 4.4
ns