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LPC64 bảng dữ liệu(PDF) 47 Page - NXP Semiconductors

tên linh kiện LPC64
Giải thích chi tiết về linh kiện  32-bit ARM Cortex-M3 microcontroller; up to 512 kB flash and 64 kB SRAM with Ethernet, USB 2.0 Host/Device/OTG, CAN
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nhà sản xuất  NXP [NXP Semiconductors]
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LPC64 bảng dữ liệu(HTML) 47 Page - NXP Semiconductors

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LPC1768_67_66_65_64_3
© NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 03 — 19 November 2009
47 of 65
NXP Semiconductors
LPC1768/67/66/65/64
32-bit ARM Cortex-M3 microcontroller
11.3 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.
Table 9.
Dynamic characteristic: internal oscillators
Tamb = −40 °C to +85 °C; 2.7 V ≤ VDD(3V3) ≤ 3.6 V.[1]
Symbol
Parameter
Conditions
Min
Typ[2]
Max
Unit
fosc(RC)
internal RC oscillator frequency
-
3.96
4.00
4.04
MHz
fi(RTC)
RTC input frequency
-
-
32.768
-
kHz
Conditions: Frequency values are typical values. 4 MHz
± 1 % accuracy is guaranteed for
2.7 V
≤ V
DD(3V3) ≤ 3.6 V and Tamb = −40 °C to +85 °C. Variations between parts may cause the
IRC to fall outside the 4 MHz 1 % accuracy specification for voltages below 2.7 V.
Fig 11. Internal RC oscillator frequency versus temperature
002aaf107
temperature (
°C)
−40
85
35
10
60
−15
4.024
4.032
4.020
4.028
4.036
fosc(RC)
(MHz)
4.016
VDD(3V) = 3.6 V
3.3 V
3.0 V
2.7 V
2.4 V



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