参数资料
型号: OM11048
厂商: NXP Semiconductors
文件页数: 48/74页
文件大小: 0K
描述: BOARD LPCXPRESSO LPC1343
产品培训模块: LPCXpresso
标准包装: 1
系列: LPCXpresso
类型: MCU
适用于相关产品: LPC1343
所含物品: 板,软件
其它名称: 568-4947
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
52 of 74
NXP Semiconductors
LPC1311/13/42/43
32-bit ARM Cortex-M3 microcontroller
10.4 Internal oscillators
[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.
[1]
Typical ratings are not guaranteed. The values listed are at nominal supply voltages.
[2]
The typical frequency spread over processing and temperature (Tamb =
40 °C to +85 °C) is ±40 %.
[3]
See the LPC13xx user manual.
Table 15.
Dynamic characteristics: IRC
Tamb =
40 °C to +85 °C; 2.7 V ≤ VDD ≤ 3.6 V[1].
Symbol
Parameter
Conditions
Min
Max
Unit
fosc(RC)
internal RC oscillator frequency
-
11.88
12
12.12
MHz
Conditions: Frequency values are typical values. 12 MHz
± 1 % accuracy is guaranteed for
2.7 V
≤ VDD ≤ 3.6 V and Tamb = 40 °C to +85 °C. Variations between parts may cause the IRC to
fall outside the 12 MHz
± 1 % accuracy specification for voltages below 2.7 V.
Fig 27. Internal RC oscillator frequency f versus temperature
temperature (
°C)
40
85
35
10
60
15
002aae987
11.95
12.05
12.15
f
(MHz)
11.85
VDD = 3.6 V
3.3 V
3.0 V
2.7 V
2.4 V
2.0 V
Table 16.
Dynamic characteristics: Watchdog oscillator
Symbol Parameter
Conditions
Min
Max
Unit
fosc(int)
internal oscillator frequency
DIVSEL = 0x1F, FREQSEL = 0x1 in the
WDTOSCCTRL register;
-
kHz
DIVSEL = 0x00, FREQSEL = 0xF in the
WDTOSCCTRL register
1700
-
kHz
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