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 96 of 168
NXP Semiconductors
LPC540xx
32-bit ARM Cortex-M4 microcontroller
[1] Turn off the peripheral when the configuration is done.
[2] For optimal system power consumption, use fixed low frequency Async APB bus when the CPU is at a
higher frequency.
[3] The supply current per peripheral is measured as the difference in supply current between the peripheral
block enabled and the peripheral block disabled using ASYNCAPBCLKCTRL, AHBCLKCTRL0/1, and
PDRUNCFG0/1 registers. All other blocks are disabled and no code accessing the peripheral is executed.
[4] The supply currents are shown for system clock frequencies of 12 MHz, 48 MHz, 96 MHz and 180 MHz.
[5] Typical ratings are not guaranteed. Characterized through bench measurements using typical samples.
10.4 Pin characteristics
Async APB peripheral CPU: 12 MHz,
Async APB bus: 12
MHz
CPU: 48 MHz, sync
APB bus: 12 MHz
[2]
CPU: 96 MHz,
Async APB bus: 12
MHz
[2]
CPU: 180 MHz,
Async APB bus:
12 MHz
[2]
Timer3 0.9 0.9 0.9 0.9
Timer4 0.9 0.9 0.9 0.9
Table 19. Typical AHB/APB peripheral power consumption
[3][4][5]
T
amb
= 25 °C, V
DD
= 3.3 V;
Peripheral I
DD
in uA/MHz I
DD
in uA/MHz I
DD
in uA/MHz I
DD
in uA/MHz
Table 20. Static characteristics: pin characteristics
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
RESET
pin
V
IH
HIGH-level input voltage 0.8 V
DD
-5.0V
V
IL
LOW-level input voltage 0.5 - 0.3 V
DD
V
V
hys
hysteresis voltage
[14]
0.05 V
DD
-- V
Standard I/O pins
Input characteristics
I
IL
LOW-level input current V
I
= 0 V; on-chip pull-up resistor
disabled.
-3.0180nA
I
IH
HIGH-level input current V
I
=V
DD
; V
DD
= 3.6 V; for RESETN
pin.
3.0 180 nA
I
IH
HIGH-level input current V
I
=V
DD
; on-chip pull-down resistor
disabled
-3.0180nA
V
I
input voltage pin configured to provide a digital
function;
V
DD
1.8 V
[3]
0-5.0V
V
DD
= 0 V 0 - 3.6 V
V
IH
HIGH-level input voltage 1.71 V V
DD
< 2.7 V 1.5 - 5.0 V
2.7 V V
DD
3.6 V 2.0 - 5.0 V
V
IL
LOW-level input voltage 1.71 V V
DD
<2.7 V 0.5 - +0.4 V
2.7 V V
DD
3.6 V 0.5 - +0.8 V
V
hys
hysteresis voltage
[14]
0.1 V
DD
-- V
Output characteristics
V
O
output voltage output active 0 - V
DD
V