LPC2917SLASH01 datasheet(68/86 Pages) NXP

68 / 86 page

LPC2917_19_01_2

Preliminary data sheet

Rev. 02 — 17 June 2009

68 of 86

NXP Semiconductors

LPC2917/01; LPC2919/01

ARM9 microcontroller with CAN and LIN

Dynamic characteristics

9.1 Dynamic characteristics: I/O pins, internal clock, oscillators, PLL, and

CAN

Table 35.

Dynamic characteristics

VDD(CORE) =VDD(OSC_PLL); VDD(IO) = 2.7 V to 3.6 V; VDDA(ADC3V3) = 3.0 V to 3.6 V; all voltages are measured with respect to

ground; positive currents ﬂow into the IC; unless otherwise speciﬁed.[1]

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

I/O pins

tTHL

HIGH to LOW transition

time

CL = 30 pF

13.8

tTLH

LOW to HIGH transition

time

CL = 30 pF

13.8

CLKOUT pin

fclk

clock frequency

on pin CLKOUT

MHz

Internal clock

fclk(sys)

system clock frequency

[2] 10

125

MHz

Tclk(sys)

system clock period

[2] 8

100

Low-power ring oscillator

fref(RO)

RO reference

frequency

0.36

0.4

0.42

MHz

tstartup

start-up time

at maximum frequency

[3] -6

µs

Oscillator

fi(osc)

oscillator input

frequency

maximum frequency is

the clock input of an

external clock source

applied to the XIN_OSC

100

MHz

tstartup

start-up time

at maximum frequency

[3]

[4]

500

µs

PLL

fi(PLL)

PLL input frequency

MHz

fo(PLL)

PLL output frequency

160

MHz

CCO; direct mode

156

320

MHz

ta(clk)

clock access time

63.4

ta(A)

address access time

60.3

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