LPC2290 查看數據表（PDF） - Philips Electronics
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LPC2290
Philips Electronics
LPC2290 Datasheet PDF : 41 Pages
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Philips Semiconductors
LPC2290
16/32-bit ARM microcontrollers with external memory interface
Table 3:
Symbol
P3.20
P3.21
P3.22
P3.23
P3.24
Pin description…continued
Pin
Type
45
O
44
O
41
O
40
I/O
O
36
O
P3.25
35
O
P3.26
30
O
P3.27
29
O
P3.28
28
O
I
P3.29
27
O
I
P3.30
97
O
P3.31
96
O
TD1
22
O
RESET
135
I
XTAL1
XTAL2
VSS
VSSA
VSSA_PLL
V18
V18A
V3
V3A
142
I
141
O
3, 9, 26, 38, I
54, 67, 79,
93, 103, 107,
111, 128
139
I
138
I
37, 110
I
143
I
2, 31, 39, 51, I
57, 77, 94,
104, 112, 119
14
I
9397 750 12874
Preliminary data
Description
A20 — External memory address line 20.
A21 — External memory address line 21.
A22 — External memory address line 22.
A23 — External memory address line 23.
XCLK — Clock output.
CS3 — Low-active Chip Select 3 signal.
(Bank 3 addresses range 8300 0000 - 83FF FFFF)
CS2 — Low-active Chip Select 2signal.
(Bank 2 addresses range 8200 0000 - 82FF FFFF)
CS1 — Low-active Chip Select 1 signal.
(Bank 1 addresses range 8100 0000 - 81FF FFFF)
WE — Low-active Write enable signal.
BLS3 — Low-active Byte Lane Select signal (Bank 3).
AIN7 — A/D converter, input 7. This analog input is always connected to its
pin.
BLS2 — Low-active Byte Lane Select signal (Bank 2).
AIN6 — A/D converter, input 6. This analog input is always connected to its
pin.
BLS1 — Low-active Byte Lane Select signal (Bank 1).
BLS0 — Low-active Byte Lane Select signal (Bank 0).
TD1: CAN1 transmitter output.
External Reset input: A LOW on this pin resets the device, causing I/O ports
and peripherals to take on their default states, and processor execution to
begin at address 0. TTL with hysteresis, 5 V tolerant.
Input to the oscillator circuit and internal clock generator circuits.
Output from the oscillator amplifier.
Ground: 0 V reference.
Analog Ground: 0 V reference. This should nominally be the same voltage
as VSS, but should be isolated to minimize noise and error.
PLL Analog Ground: 0 V reference. This should nominally be the same
voltage as VSS, but should be isolated to minimize noise and error.
1.8 V Core Power Supply: This is the power supply voltage for internal
circuitry.
Analog 1.8 V Core Power Supply: This is the power supply voltage for
internal circuitry. This should be nominally the same voltage as V18 but should
be isolated to minimize noise and error.
3.3 V Pad Power Supply: This is the power supply voltage for the I/O ports.
Analog 3.3 V Pad Power Supply: This should be nominally the same voltage
as V3 but should be isolated to minimize noise and error.
Rev. 01 — 09 February 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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