55.12 I/O Pin Electrical Specifications

Table 55-16. I/O Pin Electrical Specifications
AC/DC CHARACTERISTICSStandard Operating Conditions: VDD = AVDD = 1.71V to 3.63V (unless otherwise stated)

Operating temperature:

-40°C ≤ TA ≤ +85°C for Industrial Temperature

Param. No.SymbolCharacteristicsMin.Typ.Max.UnitsConditions
DI_1VILInput Low Voltage I/O PinsVSS

AVSS

—0.3 VDD

0.3 AVDD

V—
DI_3VIHInput High Voltage I/O Pins0.7 VDD

0.7 AVDD

—VDD

AVDD

V
DI_5VOLOutput voltage low (Low Drive Strength, DRVSTR=0)——0.2 VDD

0.2 AVDD

VVDD/AVDD = 3.3V @ IOL= 2mA
DI_7Output voltage low (High Drive Strength, DRVSTR=1)VDD/AVDD = 3.3V @ IOL= 8mA
DI_9VOHOutput voltage High (Low Drive Strength, DRVSTR=0)0.8 VDD

0.8 AVDD

——VVDD/AVDD = 3.3V @ IOH = 2 mA
DI_10Output voltage High (High Drive Strength, DRVSTR = 1)

I/O pins PA00, PA01, PB00, PB01, PB02, PB03, PC00, PC01

VDD/AVDD = 3.3V @ IOH = 6 mA
DI_11Output voltage High (High Drive Strength, DRVSTR = 1)

All I/O pins except DI_10 ones

VDD/AVDD = 3.3V @ IOH= 8mA
DI_13IILInput pin leakage current-1—1µAVSS/AVSS ≤ VPIN ≤ VDD/AVDD(max) (VPIN = Voltage present on Pin)
DI_15RPDWNInternal Pull-Down

(DIR = OUT = 0, PULLEN = 1).

All I/O pins except PA24 and PA25.

20—60kΩ—
Internal Pull-Down

(DIR = OUT = 0, PULLEN = 1).

I/O pins PA24 and PA25.

14—28kΩ
DI_17RPUPInternal Pull-Up

(DIR = 0, OUT = PULLEN = 1)

20—60kΩ
DI_19IICL (1,3,4)Input Low Injection Current-15——mAThis parameter applies to all I/O pins.
DI_21IICH (2,3,4)Input High Injection Current——15mAThis parameter applies to all I/O pins
DI_23∑IICTTotal Input Injection Current (sum of all I/O and control pins) Absolute value of

| ∑IICT |

-45—45mAAbsolute instantaneous sum of all ± input injection currents from all I/O pins. ( | IICL | + | IICH | ) ≤ ∑IICT
DI_25TRISEI/O pin Rise Time

(Low Drive Strength, DRVSTR=0)

——49nsNormal Mode (all IO pins),

CLOAD=30pF(MAX)

DI_26I/O pin Rise Time

(High Drive Strength, DRVSTR=1)

——12ns
DI_27TFALLI/O pin Fall Time

(Low Drive Strength, DRVSTR=0)

——44ns
DI_28I/O pin Fall Time

(High Drive Strength, DRVSTR=1)

——11ns
DI_29TRISE_BACKUPBackup I/O pin Rise Time——4µs

Backup Pins (PA00, PA01, PB00, PB01, PB02, PB03, PC00, PC01) in Backup Mode,

CLOAD=30pF(MAX)

DI_30TFALL_BACKUPBackup I/O pin Fall Time——4µs
Note:
  1. VIL source < (VSS - 0.3). Characterized but not tested.
  2. VIH source > (VDD + 0.3).
  3. If the sum of all injection currents are > | ∑IICT | it can affect the ADC results by approximately 4 to 6 counts (i.e., VIH Source > (VDD + 0.3) or VIL source < (VSS - 0.3)).
  4. Any number and/or combination of I/O pins not excluded under IICL or IICH conditions are permitted provided the “absolute instantaneous” sum of the input injection currents from all pins do not exceed the specified ∑IICT limit. To limit the injection current the user must insert a resistor in series RSERIES, (i.e. RS), between input source voltage and device pin. The resistor value is calculated according to:
    • For negative Input voltages less than (VSS-0.3): RS ≥ absolute value of | ((VIL source - (VSS - 0.3)) / IICL) |
    • For positive input voltages greater than (VDD +0.3): RS ≥ ((VIH source - (VDD +0.3))/ IICH)
    • For Vpin voltages >VDD +0.3 and <VSS-0.3 then RS = the larger of the values calculated above