UM10503
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© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1.3 — 6 July 2012
229 of 1269
NXP Semiconductors
UM10503
Chapter 14: LPC43xx Pin configuration
[1]
x = available; - = not pinned out.
[2]
N = neutral, input buffer disabled; no extra VDDIO current consumption if the input is driven midway between supplies; I = input; OL =
output driving LOW; OH = output driving HIGH; AI/O = analog input/output; IA = inactive; PU = pull-up enabled (weak pull-up resistor
pulls up pin to VDDIO; F = floating. Reset state reflects the pin state at reset without boot code operation.
[3]
5 V tolerant pad with 15 ns glitch filter (5 V tolerant if VDDIO present; if VDDIO not present, do not exceed 3.6 V); provides digital I/O
functions with TTL levels and hysteresis; normal drive strength.
[4]
5 V tolerant pad with 15 ns glitch filter(5 V tolerant if VDDIO present; if VDDIO not present, do not exceed 3.6 V); provides digital I/O
functions with TTL levels, and hysteresis; high drive strength.
[5]
5 V tolerant pad with 15 ns glitch filter(5 V tolerant if VDDIO present; if VDDIO not present, do not exceed 3.6 V); provides high-speed
digital I/O functions with TTL levels and hysteresis.
[6]
5 V tolerant pad providing digital I/O functions (with TTL levels and hysteresis) and analog input or output (5 V tolerant if VDDIO present;
if VDDIO not present, do not exceed 3.6 V). When configured as a ADC input or DAC output, the pin is not 5 V tolerant and the digital
section of the pad must be disabled by setting the pin to an input function and disabling the pull-up resistor through the pin’s SFSP
register.
[7]
5 V tolerant transparent analog pad.
[8]
For maximum load C
L
= 6.5
F and maximum resistance R
pd
= 80 k
, the VBUS signal takes about 2 s to fall from VBUS = 5 V to VBUS
= 0.2 V when it is no longer driven.
[9]
Transparent analog pad. Not 5 V tolerant.
[10] Pad provides USB functions 5 V tolerant if VDDIO present; if VDDIO not present, do not exceed 3.6 V. It is designed in accordance with
the USB specification, revision 2.0 (Full-speed and Low-speed mode only).
[11] Open-drain 5 V tolerant digital I/O pad, compatible with I
2
C-bus Fast Mode Plus specification. This pad requires an external pull-up to
provide output functionality. When power is switched off, this pin connected to the I
2
C-bus is floating and does not disturb the I
2
C lines.
[12] 5 V tolerant pad with 20 ns glitch filter; provides digital I/O functions with open-drain output with weak pull-up resistor and hysteresis.
[13] On the TFBGA100 and LQFP208 packages, VPP is internally connected to VDDIO.
[14] On the LQFP144 package, VSSIO and VSS are connected to a common ground plane.
[15] On the TFBGA100 and LQFP208 packages, VSS is internally connected to VSSIO.
VSSA
B2
A3
C2
196 135
-
-
Analog ground.
Not connected
-
B9
B8
-
-
-
-
-
n.c.
Table 129. Pin description
…continued
LCD, Ethernet, USB0, and USB1 functions are not available on all parts.
Symbol
LB
GA25
6
TFBGA180
TFBGA100
LQ
FP2
08
[1
]
LQ
FP1
44
R
e
se
t st
ate
[2
]
Ty
p
e
Description