LPC1767 View Datasheet(PDF) - Philips Electronics
Part Name
Description
MFG CO.
'LPC1767' PDF : 66 Pages View PDF
NXP Semiconductors
LPC1769/68/67/66/65/64
32-bit ARM Cortex-M3 microcontroller
11.3 Internal oscillators
Table 9. Dynamic characteristic: internal oscillators
Tamb = −40 °C to +85 °C; 2.7 V ≤ VDD(3V3) ≤ 3.6 V.[1]
Symbol
Parameter
Conditions
fosc(RC)
internal RC oscillator frequency
-
fi(RTC)
RTC input frequency
-
Min
3.96
-
Typ[2]
4.00
32.768
Max
4.04
-
[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.
Unit
MHz
kHz
4.036
fosc(RC)
(MHz)
4.032
4.028
4.024
002aaf107
VDD(3V) = 3.6 V
3.3 V
3.0 V
2.7 V
2.4 V
4.020
4.016
−40
−15
10
35
60
85
temperature (°C)
Conditions: Frequency values are typical values. 4 MHz ± 1 % accuracy is guaranteed for
2.7 V ≤ VDD(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
11.4 I/O pins
Table 10. Dynamic characteristic: I/O pins[1]
Tamb = −40 °C to +85 °C; VDD(3V3) over specified ranges.
Symbol
Parameter
Conditions
Min
tr
rise time
pin configured as output
3.0
tf
fall time
pin configured as output
2.5
[1] Applies to standard I/O pins and RESET pin.
Typ
Max
Unit
-
5.0
ns
-
5.0
ns
LPC1769_68_67_66_65_64_4
Product data sheet
Rev. 04 — 1 February 2010
© NXP B.V. 2010. All rights reserved.
47 of 66
Share Link: 
