Datasheet

LPC82x All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 1 — 1 October 2014 52 of 81
NXP Semiconductors
LPC82x
32-bit ARM Cortex-M0+ microcontroller
[1] Typical ratings are not guaranteed. The values listed are at nominal supply voltages.
[2] The typical frequency spread over processing and temperature (T
amb
= 40 C to +105 C) is 40 %.
[3] See the LPC82x user manual.
Conditions: Frequency values are typical values. 12 MHz  1.5 % accuracy is guaranteed for
2.7 V  V
DD
 3.6 V. Variations between parts may cause the IRC to fall outside the 12 MHz 
1.5 % accuracy specification for voltages below 2.7 V.
Fig 32. Typical Internal RC oscillator frequency versus temperature
Table 14. Dynamic characteristics: Watchdog oscillator
Symbol Parameter Conditions Min Typ
[1]
Max Unit
f
osc(int)
internal oscillator
frequency
DIVSEL = 0x1F, FREQSEL = 0x1
in the WDTOSCCTRL register;
[2][3]
-9.4-kHz
DIVSEL = 0x00, FREQSEL = 0xF
in the WDTOSCCTRL register
[2][3]
- 2300 - kHz
aaa-014008
-40 -10 20 50 80 110
11.8
11.9
12
12.1
12.2
temperature (°C)
f
f
(MHz)
(MHz)
(MHz)
3.6 V
3.6 V
V
DD
= 3.6 V
3.3 V
3.3 V
3.3 V
3 V
3 V
3 V
2.7 V
2.7 V
2.7 V
2.4 V
2.4 V
2.4 V
2.1 V
2.1 V
2.1 V
2 V
2 V
2 V
1.8 V
1.8 V
1.8 V