Datasheet

AM3517, AM3505
SPRS550E –OCTOBER 2009–REVISED MARCH 2013 www.ti.com
3.3 DC Electrical Characteristics
Table 3-4 summarizes the dc electrical characteristics.
Table 3-4. DC Electrical Characteristics
PARAMETER MIN NOM MAX UNIT
LVCMOS Pin Buffers
V
IH
High-level input voltage 0.65 x V
VDDSHV = 1.8 V
(1)
VDDSHV.
2
VDDSHV = 3.3 V
(1)
sys_xtalin 0.8 x
VDDSOSC
V
IL
Low-level input voltage 0.35 x V
VDDSHV = 1.8 V
(1)
VDDSHV
0.8
VDDSHV = 3.3 V
(1)
sys_xtalin 0.2 x
VDDSOSC
V
OH
High-level output voltage VDDSHV - V
VDDSHV = 1.8 V
(1)
0.45
I
OH
= -2 mA
2.4
VDDSHV = 3.3 V
(1)
I
OH
= -2 mA
V
OL
Low-level output voltage 0.45 V
VDDSHV = 1.8 V
(1)
I
OL
= 2 mA
0.4
VDDSHV = 3.3 V
(1)
I
OL
= 2 mA
I
I
Input current for dual voltage IO pins V
I
= V
ss
to Input pins with -9 9 µA
VDDSHV pull disabled
V
I
= V
ss
to Input pins with -310 -70
VDDSHV 100 µA pull-up
enabled
V
I
= V
ss
to Input pins with 75 270
VDDSHV 100 µA pull-down
enabled
Input current for DDR2/mDDR 1.8V IO V
I
= V
ss
to Input pins with 77 286
pins VDDSHV 100 µA pull-down
enabled
I
OZ
Off-state output current V
O
= VDDSHV Pull disabled -20 20 µA
or 0V
I
OH
High-level output current (dual-voltage -2 mA
LVCMOS IOs)
I
OL
Low-level output current (dual-voltage 2 mA
LVCMOS IOs)
t
T
Input transition time (rise time, tR or fall VDDSHV = 1.8 Normal mode 10 ns
time, tF evaluated between 10% and
V
(1)
High-speed mode 3
90% at PAD)
VDDSHV = 3.3 Normal mode 10
V
(1)
High-speed mode 3
Capacitan Input capacitance 3 pF
ce (dual-voltage LVCMOS I/Os)
Output capacitance 3 pF
(dual-voltage LVCMOS I/Os)
Complex IO Dedicated to USB : USB0_DM and USB0_DP
V
IH
High-level input voltage Low/Full speed 2.0 V
High speed
(2)
V
IL
Low-level input voltage Low/Full speed 0.8 V
High speed
(2)
V
OH
High-level output voltage Low/Full speed 2.8 VDDA3P3V_ V
USBPHY
High speed 360 440 mV
(1) These IO specifications apply to the dual-voltage IOs only and do not apply to the DDR2/mDDR interfaces. DDR2/mDDR IOs are 1.8V
IOs and adhere to the JESD79-2A standard.
(2) These parameters must adhere to the requirements defined in section 7.1.7.2 of Universal Serial Bus Specifications revision 2.0.
84 Electrical Characteristics Copyright © 2009–2013, Texas Instruments Incorporated
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