Datasheet
LPC540xx All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2018. All rights reserved.
Product data sheet Rev. 1.8 — 22 June 2018 98 of 168
NXP Semiconductors
LPC540xx
32-bit ARM Cortex-M4 microcontroller
[1] Typical ratings are not guaranteed. The values listed are at room temperature (25 C), nominal supply voltage.
[2] Based on characterization. Not tested in production.
[3] With respect to ground.
[4] Allowed as long as the current limit does not exceed the maximum current allowed by the device.
[5] To V
SS
.
[6] The values specified are simulated and absolute values, including package/bondwire capacitance.
[7] The weak pull-up resistor is connected to the V
DD
rail and pulls up the I/O pin to the V
DD
level.
[8] The value specified is a simulated value, excluding package/bondwire capacitance.
[9] Without 33 Ω 2 % series external resistor.
[10] The parameter values specified are simulated and absolute values.
[11] With 33 Ω 2 % series external resistor.
[12] With 15 KΩ 5 % resistor to V
SS
.
[13] With 1.5 KΩ 5% resistor to 3.6 V external pull-up.
[14] Guaranteed by design, not tested in production.
USB0_DM and USB0_DP pins
V
I
input voltage 0 - V
DD
V
V
IH
HIGH-level input voltage 2.0 - - V
V
IL
LOW-level input voltage - - 0.8 V
V
hys
hysteresis voltage 0.4 - - V
Z
out
output impedance
[11]
33.0 - 44 Ω
V
OH
HIGH-level output voltage
[12]
2.8 - - V
V
OL
LOW-level output voltage
[13]
--0.3V
I
OH
HIGH-level output current V
OH
=V
DD
0.3 V
[9][10]
38 - 74 mA
V
OH
=V
DD
0.3 V
[10][11]
6.0 9.0 mA
I
OL
LOW-level output current V
OL
= 0.3 V
[9][10]
38 - 74 mA
V
OL
= 0.3 V
[10][11]
6.0 9.0 mA
I
OLS
LOW-level short-circuit
output current
drive LOW; pad connected to
ground
[10]
--100mA
I
OHS
HIGH-level short-circuit
output current
drive HIGH; pad connected to
ground
[10]
--100mA
Pin capacitance
C
io
input/output capacitance I
2
C-bus pins
[8]
--6.0pF
pins with digital functions only
[6]
--2.0pF
Pins with digital and analog
functions
[6]
--7.0pF
Table 20. Static characteristics: pin characteristics
…continued
T
amb
=
40
C to +105
C, unless otherwise specified. 1.71 V
V
DD
3.6 V unless otherwise specified. Values tested in
production unless otherwise specified.
Symbol Parameter Conditions Min Typ
[1]
Max Unit