LPC2104 datasheet(26/32 Pages) PHILIPS

26 / 32 page

Philips Semiconductors

LPC2104/2105/2106

Single-chip 32-bit microcontrollers

Product data

Rev. 04 — 05 February 2004

26 of 32

9397 750 12792

Dynamic characteristics

[1]

Parameters are valid over operating temperature range unless otherwise speciﬁed.

[2]

Bus capacitance Cb in pF, from 10 pF to 400 pF.

Table 10:

Characteristics

Tamb =0 °Cto +70 °C for commercial, −40 °C to +85 °C for industrial, VDD1.8, VDD3 over speciﬁed ranges[1]

Symbol

Parameter

Conditions

Min

Typ[1]

Max

Unit

External Clock

fosc

Oscillator frequency supplied by an

external oscillator (signal generator)

MHz

External clock frequency supplied by

an external crystal oscillator

MHz

External clock frequency if on-chip

PLL is used

MHz

External clock frequency if ISP is

used for initial code download

MHz

External oscillator clock period

1000

tCHCX

Clock HIGH time

tc × 0.4

tCLCX

Clock LOW time

tc × 0.4

tCLCH

Clock rise time

tCHCL

Clock fall time

Port Pins

tRISE

Port output rise time (except P0.2,

P0.3)

--ns

tFALL

Port output fall time (except P0.2,

P0.3)

--ns

I2C pins

Output fall time from VIH to VIL

20 +

0.1

× Cb[2]

--ns

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