參數(shù)資料
型號： LPC2220
廠商： NXP Semiconductors N.V.
英文描述： 16/32-bit ARM microcontrollers; flashless with 64 kB, with 10-bit ADC and external memory interface
中文描述： 16/32位 ARM微控制器；64KB的閃存；10位模數(shù)轉換和外部存儲器接口
文件頁數(shù)： 36/49頁
文件大?。?/td> 255K
代理商： LPC2220
9397 750 14061
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 02— 30 May 2005
36 of 49
Philips Semiconductors
LPC2210/2220
16/32-bit ARM microcontrollers with external memory interface
9.
Dynamic characteristics
[1]
Parameters are valid over operating temperature range unless otherwise specified.
[2]
Bus capacitance C
b
in pF, from 10 pF to 400 pF.
Table 13:
T
amb
= 0
°
C to +70
°
C for commercial applications,
40
°
C to +85
°
C for industrial applications, V
DD(1V8)
, V
DD(3V3)
over
specified ranges
[1]
Symbol
Parameter
Conditions
External clock
f
osc
oscillator frequency supplied by an
external oscillator (signal generator)
external clock frequency supplied by
an external crystal oscillator
external clock frequency if on-chip
PLL is used
external clock frequency if on-chip
boot-loader is used for initial code
download
T
clk
clock period
t
CHCX
clock HIGH time
t
CLCX
clock LOW time
t
CLCH
clock rise time
t
CHCL
clock fall time
Port pins (except P0.2 and P0.3)
t
r
rise time
t
f
fall time
I
2
C-bus pins (P0.2 and P0.3)
t
f
fall time
V
IH
to V
IL
Dynamic characteristics
Min
Typ
Max
Unit
1
-
50
MHz
1
-
30
MHz
10
-
25
MHz
10
-
25
MHz
20
T
clk
×
0.4
T
clk
×
0.4
-
-
-
-
-
-
-
1000
-
-
5
5
ns
ns
ns
ns
ns
-
-
10
10
-
-
ns
ns
[2]
20 + 0.1
×
C
b
-
-
ns
Table 14:
C
L
= 25 pF T
amb
= 40
°
C
Symbol
Parameter
Common to Read and Write Cycles
t
CHAVR
XCLK HIGH to address valid
t
CHCSL
XCLK HIGH to CS LOW
t
CHCSH
XCLK HIGH to CS HIGH
t
CHANV
XCLK HIGH to address invalid
Read cycle parameters
t
CSLAV
CS LOW to address valid
t
OELAVR
OE LOW to address valid
t
CSLOEL
CS LOW to OE LOW
External memory interface dynamic characteristics
Conditions
Min
Typ Max
Unit
-
-
-
-
-
-
-
-
10
10
10
10
ns
ns
ns
ns
[1]
5
[1]
5
-
-
-
10
10
5
ns
ns
ns
5
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