LPC2131 datasheet(31/41 Pages) PHILIPS

31 / 41 page

9397 750 14868

Preliminary data sheet

Rev. 02 — 15 April 2005

31 of 41

Philips Semiconductors

LPC2131/2132/2134/2136/2138

Single-chip 16/32-bit microcontrollers

[1]

Typical ratings are not guaranteed. The values listed are at room temperature (+25 ˚C), nominal supply voltages.

[2]

The RTC typically fails when VBAT drops below 1.6 V.

[3]

Including voltage on outputs in 3-state mode.

[4]

VDD supply voltages must be present.

[5]

3-state outputs go into 3-state mode when VDD is grounded.

[6]

Accounts for 100 mV voltage drop in all supply lines.

IBAT

Power-down mode VBAT

supply current

RTC clock = 32 kHz

(from RTXC pins),

Ta = +25 °C

VDD = 3.0 V, VBAT = 2.5 V

µA

VDD = 3.0 V, VBAT = 3.0 V

µA

VDD = 3.3 V, VBAT = 3.3 V

µA

VDD = 3.6 V, VBAT = 3.6 V

µA

active mode VBAT supply

current

CCLK = 60 MHz,

PCLK = 15 MHz,

PCLK enabled to RTCK,

RTC clock = 32 kHz

(from RTXC pins),

Ta = +25 °C

VDD = 3.0 V, VBAT = 3.0 V

µA

VDD = 3.3 V, VBAT = 3.3 V

µA

VDD = 3.6 V, VBAT = 3.6 V

µA

active mode VBAT supply

current optimized for low

battery consumption

PCLK disabled to RTCK in

the PCONP register,

RTC clock = 32 kHz

(from RTXC pins),

Ta = +25 °C, VBAT = 3.3 V

CCLK = 6 MHz

µA

CCLK = 25 MHz

µA

CCLK = 50 MHz

µA

CCLK = 60 MHz

µA

I2C-bus pins

VIH

HIGH-state input voltage [9]

Vtol is from 4.5 V to 5.5 V

0.7Vtol

VIL

LOW-state input voltage [9]

Vtol is from 4.5 V to 5.5 V

0.3Vtol

Vhys

hysteresis voltage

Vtol is from 4.5 V to 5.5 V

0.5Vtol

-V

VOL

LOW-state output voltage [6]

IOLS = 3 mA

0.4

ILI

input leakage current to VSS VI =VDD

-2

µA

VI =5V

µA

Oscillator pins

VXTAL1

XTAL1 input voltages

1.8

VXTAL2

XTAL2 output voltages

1.8

VRTXC1

RTXC1 input voltages

1.8

VRTXC2

RTXC2 output voltages

1.8

Table 10:

DC characteristics …continued

Ta = −40 °C to +85 °C for commercial applications, unless otherwise speciﬁed.

Symbol Parameter

Conditions

Min

Typ [1]

Max

Unit

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