DUART
Table 19 provides the differential specifications for the MPC8572E differential signals MDQS/MDQS and
MCK/MCK when in DDR3 mode.
Table 19. DDR3 SDRAM Differential Electrical Characteristics
Parameter/Condition
DC Input Signal Voltage
Symbol
Min
Max
Unit
Notes
V
V
—
—
—
—
—
—
—
—
—
—
—
—
—
—
mV
mV
mV
mV
mV
mV
mV
—
—
—
—
—
—
—
IN
ID
DC Differential Input Voltage
AC Differential Input Voltage
DC Differential Output Voltage
AC Differential Output Voltage
AC Differential Cross-point Voltage
Input Midpoint Voltage
V
IDAC
V
OH
V
OHAC
V
IXAC
V
MP
7 DUART
This section describes the DC and AC electrical specifications for the DUART interface of the
MPC8572E.
7.1
DUART DC Electrical Characteristics
Table 20 provides the DC electrical characteristics for the DUART interface.
Table 20. DUART DC Electrical Characteristics
Parameter
Symbol
Min
Max
Unit
Supply voltage (3.3 V)
High-level input voltage
Low-level input voltage
OV
3.13
2
3.47
V
V
DD
V
OV + 0.3
IH
DD
V
I
–0.3
—
0.8
±5
V
IL
Input current
μA
IN
1
(V
= 0 V or V = V
IN
IN DD)
High-level output voltage
(OV = min, I = –2 mA)
V
2.4
—
—
V
V
OH
DD
OH
Low-level output voltage
(OV = min, I = 2 mA)
V
0.4
OL
DD
OL
Note:
1. Note that the symbol V , in this case, represents the OV symbol referenced in Table 1.
IN
IN
MPC8572E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 4
Freescale Semiconductor
27
FREESCALE [ Freescale ]
