DC Characteristics
2
Maximum
power dissipation at V
DDL
= V
DDSYN
= 1.9 V, and V
DDH
is at 3.5 V.
NOTE
The values in
represent V
DDL
-based power dissipation and do not
include I/O power dissipation over V
DDH
. I/O power dissipation varies
widely by application due to buffer current, depending on external
circuitry.
The V
DDSYN
power dissipation is negligible.
6
DC Characteristics
Table 6. DC Electrical Specifications
Characteristic
Operating voltage
Symbol
V
DDH
(I/O)
V
DDL
(Core)
V
DDSYN
1
provides the DC electrical characteristics for the MPC875/870.
Min
3.135
1.7
1.7
—
Max
3.465
1.9
1.9
100
Unit
V
V
V
mV
Difference
between
V
DDL
and
V
DDSYN
Input high voltage (all inputs except EXTAL and EXTCLK)
2
Input low voltage
3
EXTAL, EXTCLK input high voltage
Input leakage current, Vin = 5.5 V (except TMS, TRST, DSCK and
DSDI pins) for 5-V tolerant pins
1
Input leakage current, Vin = V
DDH
(except TMS, TRST, DSCK, and
DSDI)
Input leakage current, Vin = 0 V (except TMS, TRST, DSCK and DSDI
pins)
Input capacitance
4
Output high voltage, IOH = –2.0 mA, V
DDH
= 3.0 V
except XTAL and open-drain pins
Output low voltage
IOL = 2.0 mA (CLKOUT)
IOL = 3.2 mA
5
IOL = 5.3 mA
6
IOL = 7.0 mA (TXD1/PA14, TXD2/PA12)
IOL = 8.9 mA (TS, TA, TEA, BI, BB, HRESET, SRESET)
1
The
V
IH
V
IL
V
IHC
I
in
I
In
I
In
C
in
V
OH
V
OL
2.0
GND
0.7
×
V
DDH
—
—
—
—
2.4
—
3.465
0.8
V
DDH
100
10
10
20
—
0.5
V
V
V
µA
µA
µA
pF
V
V
difference between V
DDL
and V
DDSYN
cannot be more than 100 mV.
2
The signals PA[0:15], PB[14:31], PC[4:15], PD[3:15], PE(14:31), TDI, TDO, TCK, TRST, TMS, MII1_TXEN, MII_MDIO
are 5-V tolerant. The minimum voltage is still 2.0 V.
3
V
IL
(max) for the I
2
C interface is 0.8 V rather than the 1.5 V as specified in the I
2
C standard.
MPC875/MPC870 Hardware Specifications, Rev. 3.0
10
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Freescale Semiconductor
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
