LPC2921 datasheet(56/83 Pages) NXP

56 / 83 page

LPC2921_23_25_1

Preliminary data sheet

Rev. 01 — 15 June 2009

56 of 83

NXP Semiconductors

LPC2921/2923/2925

ARM9 microcontroller with CAN, LIN, and USB

ILIH

HIGH-level input leakage

current

µA

ILIL

LOW-level input leakage

current

µA

II(pd)

pull-down input current

all port pins, VI = 3.3 V;

VI = 5.5 V; see Figure 20

100

µA

II(pu)

pull-up input current

all port pins, RST,

TRST, TDI, JTAGSEL,

TMS: VI =0V; VI > 3.6 V

is not allowed; Figure 21

−25

−50

−115

µA

input capacitance

[5] -3

Output pins and I/O pins conﬁgured as output

output voltage

VDD(IO)

VOH

HIGH-level output voltage IOH = −4 mA; see

Figure 19

VDD(IO) − 0.4

VOL

LOW-level output voltage

IOL = 4 mA; Figure 18

0.4

load capacitance

USB pins USB_D+ and USB_D

−

Input characteristics

VIH

HIGH-level input voltage

1.5

VIL

LOW-level input voltage

1.3

Vhys

hysteresis voltage

0.4

Output characteristics

output impedance

with 33

Ω series resistor

36.0

44.1

Ω

VOH

HIGH-level output voltage (driven) for

low-/full-speed; RL of

15 k

Ω to GND

2.9

3.5

VOL

LOW-level output voltage

(driven) for

low-/full-speed; with

1.5 k

Ω resistor to 3.6 V

external pull-up

0.18

IOH

HIGH-level output current

at VOH =VDD(IO) − 0.3 V;

without 33

Ω external

series resistor

20.8

41.7

at VOH =VDD(IO) − 0.3 V;

with 33

Ω external series

resistor

4.8

5.3

IOL

LOW-level output current

at VOL = 0.3 V; without

Ω external series

resistor

26.7

57.2

at VOL = 0.3 V; with 33 Ω

external series resistor

5.0

5.5

IOHS

HIGH-level short-circuit

output current

drive high; pad

connected to ground

90.0

Table 31.

Static characteristics …continued

VDD(CORE) =VDD(OSC_PLL) ; VDD(IO) = 2.7 V to 3.6 V; VDDA(ADC3V3) = 3.0 V to 3.6 V; Tvj = −40 °Cto+85 °C; 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

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