UM10503
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© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1.3 — 6 July 2012
279 of 1269
NXP Semiconductors
UM10503
Chapter 14: LPC43xx Pin configuration
[1]
N = neutral, input buffer disabled; no extra VDDIO current consumption if the input is driven midway between supplies; set the EZI bit in
the SFS register to enable the input buffer; 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 V
DD(IO)
); F = floating. Reset state reflects the pin state at reset
without boot code operation.
[2]
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.
[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; high 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 high-speed
digital I/O functions with TTL levels and hysteresis.
[5]
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.
VDDIO
D7,
E12,
F7,
F8,
G10,
H10,
J6,
J7,
K7,
L9,
L10,
N7,
N13
H5,
H10,
K8
6,
52,
57,
102,
110,
155,
160,
202
-
-
I/O power supply. Tie the VDDREG and VDDIO pins to a common
power supply to ensure the same ramp-up time for both supply
voltages.
VSS
G9,
H7,
J10,
J11,
K8
F10,
G10,
D7,
E6,
E7,
E9,
K6,
K9
-
-
-
Ground.
VSSIO
C4,
D13,
G6,
G7,
G8,
H8,
H9,
J8,
J9,
K9,
K10,
M13,
P7,
P13
-
5,
56,
109,
157
-
-
Ground.
VSSA
B2
A3
196
-
-
Analog ground.
Table 130. LPC4357/53 Pin description
…continued
Pin name
L
B
GA
256
TFBGA18
0
LQ
FP2
0
8
Re
set st
ate
[2
]
Ty
p
e
Description