LPC178X datasheet(74/120 Pages) NXP

74 / 120 page

LPC178X_7X

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Preliminary data sheet

Rev. 4 — 1 May 2012

74 of 120

NXP Semiconductors

LPC178x/7x

32-bit ARM Cortex-M3 microcontroller

[1]

Typical ratings are not guaranteed. The values listed are at room temperature (25

C), nominal supply voltages.

[2]

For USB operation 3.0 V

 V

DD((3V3)  3.6 V. Guaranteed by design.

[3]

The RTC typically fails when Vi(VBAT) drops below 1.6 V.

[4]

VDD(REG)(3V3) = 3.3 V; Tamb =25 C for all power consumption measurements.

[5]

Boost control bits in the PBOOST register set to 0x0 (see LPC178x/7x User manual UM10470).

[6]

Boost control bits in the PBOOST register set to 0x3 (see LPC178x/7x User manual UM10470).

[7]

IRC running at 12 MHz; main oscillator and PLL disabled; PCLK = CCLK/4.

[8]

BOD disabled.

[9]

On pin VDD(REG)(3V3); IBAT = <tbd> nA; VBAT = 3.0 V; VDD(REG)(3V3) = 3.3 V.

[10] On pin VBAT; VDD(REG)(3V3) = VDD(3V3) = VDDA = 0; Tamb =25 C.

[11] On pin VBAT; VDD(REG)(3V3) = VDD(3V3) = VDDA = 3.3 V; Tamb =25 C.

[12] All internal pull-ups disabled. All pins configured as output and driven LOW. VDD(3V3) = 3.3 V; Tamb =25 C.

[13] VDDA = 3.3 V; Tamb =25 C.

[14] Vi(VREFP) = 3.3 V; Tamb =25 C.

[15] Including voltage on outputs in 3-state mode.

[16] VDD(3V3) supply voltages must be present.

[17] 3-state outputs go into 3-state mode in Deep power-down mode.

[18] Allowed as long as the current limit does not exceed the maximum current allowed by the device.

[19] To VSS.

[20] 3.0 V

 V

DD(3V3)  3.6 V.

[21] Includes external resistors of 33

 1 % on D+ and D.

VDI

differential input

sensitivity voltage

(D+)  (D)

[20] 0.2

--V

VCM

differential common

mode voltage range

includes VDI range

[20] 0.8

2.5

Vth(rs)se

single-ended receiver

switching threshold

voltage

[20] 0.8

2.0

VOL

LOW-level output

voltage for

low-/full-speed

RL of 1.5 k to 3.6 V

[20] --0.18

VOH

HIGH-level output

voltage (driven) for

low-/full-speed

RL of 15 k to GND

[20] 2.8

3.5

Ctrans

transceiver capacitance pin to GND

[20] --20

Oscillator pins (see Section 14.2)

Vi(XTAL1)

input voltage on pin

XTAL1

0.5

1.8

1.95

Vo(XTAL2)

output voltage on pin

XTAL2

0.5

1.8

1.95

Vi(RTCX1)

input voltage on pin

RTCX1

0.5

3.6

Vo(RTCX2)

output voltage on pin

RTCX2

0.5

3.6

Table 13.

Static characteristics …continued

Tamb = 40 C to +85 C, unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ[1]

Max

Unit

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