General
Unit
Symbol
Description
Min.
Max.
IDD
Digital supply current
—
185
mA
V
VDIO
VAIO
Digital input voltage (except RESET, EXTAL, and XTAL)
–0.3
–0.3
5.5
VDD + 0.3
25
Analog1, RESET, EXTAL, and XTAL input voltage
Maximum current single pin limit (applies to all port pins)
Analog supply voltage
V
ID
–25
mA
V
VDDA
VDD – 0.3
–0.3
VDD + 0.3
3.63
VUSB_DP
VUSB_DM
VREGIN
VBAT
USB_DP input voltage
V
USB_DM input voltage
–0.3
3.63
V
USB regulator input
–0.3
6.0
V
RTC battery supply voltage
–0.3
3.8
V
1. Analog pins are defined as pins that do not have an associated general purpose I/O port function.
5 General
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 CL=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)
K51 Sub-Family Data Sheet, Rev. 2, 4/2012.
Freescale Semiconductor, Inc.
11
FREESCALE [ Freescale ]
