Datasheet

LPC408X_7X All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 3.1 — 1 September 2014 84 of 138
NXP Semiconductors
LPC408x/7x
32-bit ARM Cortex-M4 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] V
DDA
and VREFP should be tied to V
DD(3V3)
if the ADC and DAC are not used.
[4] The RTC typically fails when V
i(VBAT)
drops below 1.6 V.
[5] V
DD(REG)(3V3)
= 3.3 V; T
amb
=25C for all power consumption measurements.
[6] Boost control bits in the PBOOST register set to 0x0 (see LPC408x/7x User manual).
[7] Boost control bits in the PBOOST register set to 0x3 (see LPC408x/7x User manual).
[8] IRC running at 12 MHz; main oscillator and PLL disabled; PCLK = CCLK/4.
[9] BOD disabled.
[10] On pin VBAT; V
DD(REG)(3V3)
= V
DD(3V3)
= V
DDA
= 0; T
amb
=25C.
[11] On pin VBAT; V
DD(REG)(3V3)
= V
DD(3V3)
= V
DDA
= 3.3 V; T
amb
=25C.
[12] All internal pull-ups disabled. All pins configured as output and driven LOW. V
DD(3V3)
= 3.3 V; T
amb
=25C.
[13] V
DDA
= 3.3 V; T
amb
=25C.
[14] V
i(VREFP)
= 3.3 V; T
amb
=25C.
[15] Including voltage on outputs in 3-state mode.
[16] V
DD(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 V
SS
.
[20] 3.0 V  V
DD(3V3)
 3.6 V.
V
CM
differential common
mode voltage range
includes V
DI
range
[20]
0.8 - 2.5 V
V
th(rs)se
single-ended receiver
switching threshold
voltage
[20]
0.8 - 2.0 V
V
OL
LOW-level output
voltage for
low-/full-speed
R
L
of 1.5 k to 3.6 V
[20]
--0.18V
V
OH
HIGH-level output
voltage (driven) for
low-/full-speed
R
L
of 15 k to GND
[20]
2.8 - 3.5 V
C
trans
transceiver capacitance pin to GND
[20]
--20pF
Oscillator pins (see Section 13.2
)
V
i(XTAL1)
input voltage on pin
XTAL1
0.5 1.8 1.95 V
V
o(XTAL2)
output voltage on pin
XTAL2
0.5 1.8 1.95 V
V
i(RTCX1)
input voltage on pin
RTCX1
0.5 - 3.6 V
V
o(RTCX2)
output voltage on pin
RTCX2
0.5 - 3.6 V
Table 11. Static characteristics …continued
T
amb
=  40  C to +85  C, unless otherwise specified.
Symbol Parameter Conditions Min Typ
[1]
Max Unit