
Electrical Specifications
81
November 2002 Revised January 2005
SPRS205D
5.2
Recommended Operating Conditions
5.2.1 Recommended Operating Conditions for CV
DD
= 1.2 V (108 MHz)
MIN
NOM
MAX
UNIT
Core
CV
DD
Device supply voltage
1.14
1.2
1.26
V
Peripherals
RCV
DD
RTC module supply voltage, core
1.14
1.2
1.26
V
RDV
DD
RTC module supply voltage, I/O (RTCINX1 and RTCINX2)
1.14
1.2
1.26
V
USBPLLV
DD
USBPLL supply voltage
1.14
1.2
1.26
V
USBV
DD
USB module supply voltage, I/O (DP, DN, and PU)
3
3.3
3.6
V
DV
DD
Device supply voltage, I/O (except DP, DN, PU, SDA, SCL)
2.7
3.3
3.6
V
ADV
DD
A/D module digital supply voltage
2.7
3.3
3.6
V
AV
DD
A/D module analog supply voltage
2.7
3.3
3.6
V
Grounds
V
SS
Supply voltage, GND, I/O, and core
0
V
ADV
SS
Supply voltage, GND, A/D module, digital
0
V
AV
SS
Supply voltage, GND, A/D module, analog
0
V
USBPLLV
SS
Supply voltage, GND, USBPLL
0
V
DN and DP
§
2.0
V
IH
High-level input voltage, I/O
SDA & SCL: V
DD
related input
levels
0.7*DV
DD
DV
DD
(max) +0.5
V
All other inputs
(including hysteresis inputs)
2.0
DV
DD
+ 0.3
DN and DP
§
0.8
V
IL
Low-level input voltage, I/O
SDA &SCL: V
DD
related input
levels
0.5
0.3 * DV
DD
V
All other inputs
(including hysteresis inputs)
0.3
0.8
V
hys
Hysteresis level
Inputs with hysteresis only
0.1*DV
DD
V
I
OH
High-level output current
DN and DP
§
(V
OH
= 2.45 V)
All other outputs
17.0
mA
4
DN and DP
§
(V
OL
= 0.36 V)
SDA and SCL
17.0
I
OL
Low-level output current
3
mA
All other outputs
4
T
C
Operating case temperature
40
85
C
USB PLL is susceptible to power supply ripple. The maximum allowable supply ripple is 1% for 1 Hz to 5 kHz; 1.5% for 5 kHz to 10 MHz; 3%
for 10 MHz to 100 MHz, and less than 5% for 100 MHz or greater.
The I
2
C pins SDA and SCL do not feature fail-safe I/O buffers. These pins could potentially draw current when the device is powered down.
Due to the fact that different voltage devices can be connected to the I
2
C bus, the level of logic 0 (low) and logic 1 (high) are not fixed and
depends on the associated V
DD
.
§
USB I/O pins DP and DN can tolerate a short circuit at D+ and D to 0 V or 5 V, as long as the recommended series resistors (see Figure 542)
are connected between the D+ and DP (package), and the D and DN (package). Do not apply a short circuit to the USB I/O pins DP and DN
in absence of the series resistors.