Datasheet
LPC11D14 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.
Product data sheet Rev. 2 — 23 July 2012 11 of 47
NXP Semiconductors
LPC11D14
32-bit ARM Cortex-M0 microcontroller
[1] Pin state at reset for default function: I = Input; O = Output; PU = internal pull-up enabled (pins pulled up to full V
DD
level (V
DD
= 3.3 V));
IA = inactive, no pull-up/down enabled.
S17 63 - O V
LCD
[7]
LCD segment output.
S18 64 - O V
LCD
[7]
LCD segment output.
S19 65 - O V
LCD
[7]
LCD segment output.
S20 66 - O V
LCD
[7]
LCD segment output.
S21 67 - O V
LCD
[7]
LCD segment output.
S22 68 - O V
LCD
[7]
LCD segment output.
S23 69 - O V
LCD
[7]
LCD segment output.
S24 70 - O V
LCD
[7]
LCD segment output.
S25 71 - O V
LCD
[7]
LCD segment output.
S26 72 - O V
LCD
[7]
LCD segment output.
S27 73 - O V
LCD
[7]
LCD segment output.
S28 74 - O V
LCD
[7]
LCD segment output.
S29 75 - O V
LCD
[7]
LCD segment output.
S30 76 - O V
LCD
[7]
LCD segment output.
S31 77 - O V
LCD
[7]
LCD segment output.
S32 78 - O V
LCD
[7]
LCD segment output.
S33 79 - O V
LCD
[7]
LCD segment output.
S34 29 - O V
LCD
[7]
LCD segment output.
S35 30 - O V
LCD
[7]
LCD segment output.
S36 31 - O V
LCD
[7]
LCD segment output.
S37 32 - O V
LCD
[7]
LCD segment output.
S38 33 - O V
LCD
[7]
LCD segment output.
S39 34 - O V
LCD
[7]
LCD segment output.
BP0 42 - O V
LCD
[7]
LCD backplane output.
BP1 44 - O V
LCD
[7]
LCD backplane output.
BP2 43 - O V
LCD
[7]
LCD backplane output.
BP3 45 - O V
LCD
[7]
LCD backplane output.
LCD_SDA 35 - I/O
[7]
I
2
C-bus serial data input/output.
LCD_SCL 36 - I/O
[7]
I
2
C-bus serial clock input.
SYNC
37 - I/O
[7]
Cascade synchronization input/output.
CLK 38 - I/O
[7]
External clock input/output.
V
DD(LCD)
39 - - - 1.8 V to 5.5 V power supply: Power supply voltage for the
PCF8576D.
V
SS(LCD)
40 - - - LCD ground. The PCF8576 input signals A0, A1, A2, SA0, and
OSC are internally hard-wired to V
SS(LCD)
.
V
LCD
41 - - - LCD power supply; LCD voltage.
n.c. 3 - - - Not connected.
Table 3. LPC11D14 pin description table (LQFP100 package)
…continued
Symbol Pin Start
logic
input
Type Reset
state
[1]
Description