WLCSP16 datasheet(27/38 Pages) NXP

27 / 38 page

LPC1102

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Objective data sheet

Rev. 00 — 23 June 2010

27 of 38

NXP Semiconductors

LPC1102

32-bit ARM Cortex-M0 microcontroller

10.3 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.

[1]

Typical ratings are not guaranteed. The values listed are at room temperature (25

°C), nominal supply

voltages.

[2]

The typical frequency spread over processing and temperature (Tamb = −40 °C to +85 °C) is ±40%.

[3]

See the LPC111x user manual.

Table 10.

Dynamic characteristic: internal oscillators

Tamb = −40 °C to +85 °C; 2.7 V ≤ VDD ≤ 3.6 V.[1]

Symbol

Parameter

Conditions

Min

Typ[2]

Max

Unit

fosc(RC)

internal RC oscillator frequency -

11.88

12.12

MHz

Conditions: Frequency values are typical values. 12 MHz

± 1% accuracy is guaranteed for

2.7 V

≤ V

DD ≤ 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 15. Internal RC oscillator frequency vs. temperature

Table 11.

Dynamic characteristics: Watchdog oscillator

Symbol Parameter

Conditions

Min

Typ[1]

Max

Unit

fosc

internal oscillator

frequency

DIVSEL = 0x1F, FREQSEL = 0x1

in the WDTOSCCTRL register;

[2][3] -7.8

kHz

DIVSEL = 0x00, FREQSEL = 0xF

in the WDTOSCCTRL register

[2][3] -

1700

kHz

X (X)

001aac984

(X)

<tbd>

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