![](http://datasheet.mmic.net.cn/Texas-Instruments/TMS470R1A384PZQ_datasheet_99827/TMS470R1A384PZQ_31.png)
Electrical Characteristics
www.ti.com ......................................................................................................................................................... SPNS110E – AUGUST 2005 – REVISED MAY 2008
over recommended operating free-air temperature range
(1)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Vhys
Input hysteresis
0.15
V
All inputs(2) except
–0.3
0.8
Low-level input
OSCIN
VIL
V
voltage
OSCIN only
–0.3
0.35 VCC
All inputs except
VCCIO +
2
High-level input
OSCIN
0.3
VIH
V
voltage
OSCIN only
0.65 VCC
VCC + 0.3
Input threshold
Vth
AWD only
1.35
1.8
V
voltage
Drain to source on
RDSON
AWD only (3)
VOL – 0.35 V at IOL = 4 mA
90
resistance
IOL = IOL MAX
0.2 VCCIO
VOL
Low-level output voltage(4)
V
IOL = 3 mA
0.4
IOH = IOH MIN
0.8 VCCIO
VOH
High-level output voltage(4)
V
IOH = 250 A
2.7
IIC
Input clamp current (I/O pins)(5)
VI < VSSIO – 0.3 or VI > VCCIO + 0.3
–2
2
mA
IIL Pulldown
VI = VSS
–1
1
IIH Pulldown
VI = VCCIO
5
40
Input current (3.3-V
IIL Pullup
VI = VSS
–40
–5
A
input pins)
IIH Pullup
VI = VCCIO
–1
1
II
All other pins
No pullup or pulldown
–1
1
VI = VSS
–1
1
VI = VCCIO
–1
1
Input current (5-V tolerant input pins)
A
VI = 5 V
0.5
20
VI = 5.5 V
1
40
RST, CLKOUT,
4
AWD, TDO
Low-level output
IOL
All other 3.3 V
VOL = VOL MAX
mA
current
2
I/O(6)
5-V tolerant
4
RST, CLKOUT,
–4
TDO
High-level output
IOH
All other 3.3 V
VOH = VOH MIN
–2
mA
current
I/O(6)
5 V tolerant
–4
(1)
Source currents (out of the device) are negative, while sink currents (into the device) are positive.
(2)
This does not apply to the PORRST pin. For PORRST exceptions, see the RST and PORRST Timings section.
(3)
These values help to determine the external RC network circuit. For more details, see the TMS470R1x System Module Reference Guide
(literature number SPNU189).
(4)
VOL and VOH are linear with respect to the amount of load current (IOL/IOH) applied.
(5)
Parameter does not apply to input-only or output-only pins.
(6)
The 2-mA buffers on this device are called zero-dominant buffers. If two of these buffers are shorted together and one is outputting a
low level and the other is outputting a high level, the resulting value is always low.
Copyright 2005–2008, Texas Instruments Incorporated
31