lpc1224 NXP Semiconductors, lpc1224 Datasheet - Page 45

• Manufacturer Part Number: lpc1224
• Description: Lpc122x 32-bit Arm Cortex-m0 Microcontroller; Up To 128 Kb Flash And 8 Kb Sram
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 15.
T
LPC122X
Objective data sheet
Symbol
f
SCL
amb
=

40

Dynamic characteristic: I
C to +85
11.3 Internal oscillators
11.4 I
Parameter
SCL clock frequency

C.
[1]
Table 13.
T
[1]
[2]
Table 14.
[1]
[2]
[3]
Symbol
f
Symbol Parameter
f
2
osc(RC)
osc(int)
amb
Fig 19. Internal RC oscillator frequency versus temperature
C-bus
Parameters are valid over operating temperature range unless otherwise specified.
Typical ratings are not guaranteed. The values listed are at nominal supply voltages.
Typical ratings are not guaranteed. The values listed are at room temperature (25 C), nominal supply
voltages.
The typical frequency spread over processing and temperature (T
See the LPC122x user manual.
=
f
osc(RC)
(MHz)

12.15
12.05
11.95
11.85
40
internal oscillator
frequency

Parameter
internal RC oscillator frequency
−40
Dynamic characteristic: internal oscillators
Dynamic characteristics: Watchdog oscillator
C to +85
2
C-bus pins
VDD = 3.6 V
All information provided in this document is subject to legal disclaimers.
3.3 V
3.0 V

C; V
Rev. 1.1 — 21 February 2011
−15
DD(3V3)
Conditions
DIVSEL = 0x1F, FREQSEL = 0x1
in the WDTOSCCTRL register;
DIVSEL = 0x00, FREQSEL = 0xF
in the WDTOSCCTRL register
over specified ranges.
Conditions
Standard-mode
Fast-mode
Fast-mode Plus
10
12 MHz + 1%
12 MHz − 1%
Conditions
-
32-bit ARM Cortex-M0 microcontroller
35
[1]
Min
0
0
0
Min
11.88
amb
[2][3]
[2][3]
= 40 C to +85 C) is 40 %.
Min
-
-
60
temperature (°C)
Typ
12
[2]
Typ
7.8
1700
LPC122x
002aag020
© NXP B.V. 2011. All rights reserved.
Max
100
400
1
[1]
Max
12.12
85
-
Max
-
Unit
kHz
kHz
MHz
Unit
MHz
45 of 60
Unit
kHz
kHz