LPC11U23FBD48 NXP Semiconductors, LPC11U23FBD48 Datasheet - Page 45

• Manufacturer Part Number: LPC11U23FBD48
• Description: The LPC11U23FBD48 is a ARM Cortex-M0 based, low-cost 32-bit MCU, designed for 8/16-bit microcontroller applications, offering performance, low power, simple instruction set and memory addressing together with reduced code size compared to existing 8/
• Manufacturer: NXP Semiconductors

NXP Semiconductors
LPC11U2X
Product data sheet
10.3 Internal oscillators
Table 12.
T
[1]
[2]
Table 13.
[1]
Symbol
f
Symbol
f
osc(int)
amb
Fig 21. External clock timing (with an amplitude of at least V
osc(RC)
Fig 22. Internal RC oscillator frequency versus temperature
Parameters are valid over operating temperature range unless otherwise specified.
Typical ratings are not guaranteed. The values listed are at room temperature (25 C), nominal supply
voltages.
Typical ratings are not guaranteed. The values listed are at nominal supply voltages.
=
(MHz)

12.15
12.05
11.95
11.85
40
f
Conditions: Frequency values are typical values. 12 MHz  1 % accuracy is guaranteed for
2.7 V  V
fall outside the 12 MHz  1 % accuracy specification for voltages below 2.7 V.

−40
Dynamic characteristics: IRC
Dynamic characteristics: Watchdog oscillator
C to +85
Parameter
internal oscillator
frequency
Parameter
internal RC oscillator
frequency
All information provided in this document is subject to legal disclaimers.
DD

 3.6 V and T
C; 2.7 V
VDD = 3.6 V
Rev. 2 — 13 January 2012
−15
3.3 V
3.0 V
2.7 V
2.4 V
2.0 V

Conditions
DIVSEL = 0x1F, FREQSEL = 0x1
in the WDTOSCCTRL register;
DIVSEL = 0x00, FREQSEL = 0xF
in the WDTOSCCTRL register
V
amb
DD
t
CHCL
= 40 C to +85 C. Variations between parts may cause the IRC to

3.6 V
10
Conditions
-
[1]
.
t
CLCX
32-bit ARM Cortex-M0 microcontroller
35
T
cy(clk)
Min
11.88
t
CLCH
t
CHCX
i(RMS)
[2][3]
[2][3]
Typ
12
60
temperature (°C)
Min
-
-
= 200 mV)
[2]
LPC11U2x
002aaa907
© NXP B.V. 2012. All rights reserved.
002aaf403
Typ
7.8
1700
Max
12.12
[1]
85
Max Unit
-
-
45 of 70
Unit
MHz
kHz
kHz