Datasheet

5.1 AC electrical characteristics
Unless otherwise specified, propagation delays are measured from the 50% to the 50%
point, and rise and fall times are measured at the 20% and 80% points, as shown in the
following figure.
Figure 1. Input signal measurement reference
All digital I/O switching characteristics assume:
1. output pins
• have C
L
=30pF loads,
• are configured for fast slew rate (PORTx_PCRn[SRE]=0), and
• are configured for high drive strength (PORTx_PCRn[DSE]=1)
2. input pins
• have their passive filter disabled (PORTx_PCRn[PFE]=0)
5.2 Nonswitching electrical specifications
5.2.1 Voltage and current operating requirements
Table 1. Voltage and current operating requirements
Symbol Description Min. Max. Unit Notes
V
DD
Supply voltage max
[V
DD_DDR
,
1.71 V]
3.6 V
V
DD_INT
Core supply voltage 1.71 V
DD
V
V
DD_DDR
DDR voltage — memory I/O buffers
• DDR1
• DDR2/LPDDR1
2.3
1.71
2.7
1.9
V
V
V
REF_DDR
Input reference voltage (DDR1/DDR2/LPDDR1) 0.49 ×
V
DD_DDR
V
DD_DDR
V 1
V
DDA
Analog supply voltage 1.71 3.6 V
V
DD
– V
DDA
V
DD
-to-V
DDA
differential voltage –0.1 0.1 V
Table continues on the next page...
General
K70 Sub-Family Data Sheet, Rev. 5, 10/2013.
12 Freescale Semiconductor, Inc.