參數(shù)資料
型號(hào): EA-XPR-001
廠商: Embedded Artists
文件頁(yè)數(shù): 47/74頁(yè)
文件大?。?/td> 0K
描述: BOARD LPCXPRESSO LPC1343
標(biāo)準(zhǔn)包裝: 1
系列: LPCXpresso
類(lèi)型: MCU
適用于相關(guān)產(chǎn)品: EA-XPR-021,ARM Cortex-M3
所含物品: 板,軟件
配用: EA-XPR-021-ND - BOARD BASE LPCXPRESSO
LPC1311_13_42_43
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 5 — 6 June 2012
51 of 74
NXP Semiconductors
LPC1311/13/42/43
32-bit ARM Cortex-M3 microcontroller
10.3 External clock
[1]
Parameters are valid over operating temperature range unless otherwise specified.
[2]
Typical ratings are not guaranteed. The values listed are at room temperature (25
°C), nominal supply voltages.
Table 14.
Dynamic characteristic: external clock
Tamb =
40 °C to +85 °C; VDD over specified ranges.[1]
Symbol
Parameter
Conditions
Min
Max
Unit
fosc
oscillator frequency
1
-
25
MHz
Tcy(clk)
clock cycle time
40
-
1000
ns
tCHCX
clock HIGH time
Tcy(clk)
× 0.4
-
ns
tCLCX
clock LOW time
Tcy(clk)
× 0.4
-
ns
tCLCH
clock rise time
-
5
ns
tCHCL
clock fall time
-
5
ns
Fig 26. External clock timing (with an amplitude of at least Vi(RMS) = 200 mV)
tCHCL
tCLCX
tCHCX
Tcy(clk)
tCLCH
002aaa907
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