Datasheet

LPC2458 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 4.1 — 15 October 2013 18 of 81
NXP Semiconductors
LPC2458
Single-chip 16-bit/32-bit micro
P4[8]/A8 J11
[1]
I/O P4[8] — General purpose digital input/output pin.
I/O A8 — External memory address line 8.
P4[9]/A9 H12
[1]
I/O P4[9] — General purpose digital input/output pin.
I/O A9 — External memory address line 9.
P4[10]/A10 G12
[1]
I/O P4[10] — General purpose digital input/output pin.
I/O A10 — External memory address line 10.
P4[11]/A11 F11
[1]
I/O P4[11] — General purpose digital input/output pin.
I/O A11 — External memory address line 11.
P4[12]/A12 F10
[1]
I/O P4[12] — General purpose digital input/output pin.
I/O A12 — External memory address line 12.
P4[13]/A13 B14
[1]
I/O P4[13] — General purpose digital input/output pin.
I/O A13 — External memory address line 13.
P4[14]/A14 E8
[1]
I/O P4[14] — General purpose digital input/output pin.
I/O A14 — External memory address line 14.
P4[15]/A15 C10
[1]
I/O P4[15] — General purpose digital input/output pin.
I/O A15 — External memory address line 15.
P4[16]/A16 N12
[1]
I/O P4[16] — General purpose digital input/output pin.
I/O A16 — External memory address line 16.
P4[17]/A17 N13
[1]
I/O P4[17] — General purpose digital input/output pin.
I/O A17 — External memory address line 17.
P4[18]/A18 P14
[1]
I/O P4[18] — General purpose digital input/output pin.
I/O A18 — External memory address line 18.
P4[19]/A19 M14
[1]
I/O P4[19] — General purpose digital input/output pin.
I/O A19 — External memory address line 19.
P4[24]/OE
C8
[1]
I/O P4[24] — General purpose digital input/output pin.
O OE
— LOW active Output Enable signal.
P4[25]/WE
D9
[1]
I/O P4[25] — General purpose digital input/output pin.
O WE
— LOW active Write Enable signal.
P4[26]/BLS0
K13
[1]
I/O P4[26] — General purpose digital input/output pin.
O BLS0
— LOW active Byte Lane select signal 0.
P4[27]/BLS1
F14
[1]
I/O P4[27] — General purpose digital input/output pin.
O BLS1
— LOW active Byte Lane select signal 1.
P4[28]/MAT2[0]/
TXD3
D10
[1]
I/O P4[28] — General purpose digital input/output pin.
O MAT2[0] — Match output for Timer 2, channel 0.
O TXD3 — Transmitter output for UART3.
P4[29]/MAT2[1]/
RXD3
B9
[1]
I/O P4[29] — General purpose digital input/output pin.
O MAT2[1] — Match output for Timer 2, channel 1.
I RXD3 — Receiver input for UART3.
P4[30]/CS0
C7
[1]
I/O P4[30] — General purpose digital input/output pin.
O CS0
— LOW active Chip Select 0 signal.
Table 4. Pin description …continued
Symbol Ball Type Description