LPC1547JBD48 datasheet(71/99 Pages) NXP

71 / 99 page

LPC15XX

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Product data sheet

Rev. 1 — 19 February 2014

71 of 99

NXP Semiconductors

LPC15xx

32-bit ARM Cortex-M3 microcontroller

[1]

Typical ratings are not guaranteed. The values listed are at nominal supply voltages.

[2]

The typical frequency spread over processing and temperature (Tamb = 40 C to +105 C) is 40 %.

12.4 I/O pins

[1]

Applies to standard port pins and RESET pin.

12.5 I2C-bus

Table 17.

Dynamic characteristics: Watchdog oscillator

Symbol

Parameter

Conditions

Min

Typ[1]

Max

Unit

fosc(int)

internal oscillator

frequency

[2] -503

kHz

Table 18.

Dynamic characteristics: I/O pins[1]

Tamb = 40 C to +105 C; 3.0 V  VDD  3.6 V.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

rise time

pin configured as output

3.0

5.0

fall time

pin configured as output

2.5

5.0

Table 19.

Dynamic characteristic: I2C-bus pins[1]

Tamb = 40 C to +105 C; values guaranteed by design.[2]

Symbol

Parameter

Conditions

Min

Max

Unit

fSCL

SCL clock

frequency

Standard-mode

100

kHz

Fast-mode

400

kHz

Fast-mode Plus; on

pins PIO0_22 and

PIO0_23

MHz

fall time

[4][5][6][7]

of both SDA and

SCL signals

Standard-mode

300

Fast-mode

20 + 0.1

 C

300

Fast-mode Plus;

on pins PIO0_22

and PIO0_23

120

tLOW

LOW period of

the SCL clock

Standard-mode

4.7

s

Fast-mode

1.3

s

Fast-mode Plus; on

pins PIO0_22 and

PIO0_23

0.5

s

tHIGH

HIGH period of

the SCL clock

Standard-mode

4.0

s

Fast-mode

0.6

s

Fast-mode Plus; on

pins PIO0_22 and

PIO0_23

0.26

s

tHD;DAT

data hold time

[3][4][8]

Standard-mode

s

Fast-mode

s

Fast-mode Plus; on

pins PIO0_22 and

PIO0_23

s

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