Datasheet

LPC2377_78 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 6.1 — 16 October 2013 42 of 69
NXP Semiconductors
LPC2377/78
Single-chip 16-bit/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 V
i(VBAT)
drops below 1.6 V.
[3] V
DD(DCDC)(3V3)
= 3.3 V; V
DD(3V3)
= 3.3 V; V
i(VBAT)
= 3.3 V; T
amb
=25C.
[4] On pin VBAT.
[5] Including voltage on outputs in 3-state mode.
[6] V
DD(3V3)
supply voltages must be present.
[7] 3-state outputs go into 3-state mode when V
DD(3V3)
is grounded.
[8] Please also see the errata note in errata sheet.
[9] Accounts for 100 mV voltage drop in all supply lines.
[10] Allowed as long as the current limit does not exceed the maximum current allowed by the device.
[11] Minimum condition for V
I
= 4.5 V, maximum condition for V
I
=5.5V.
[12] To V
SS
.
[13] Includes external resistors of 33 1 % on D+ and D.
V
o(RTCX2)
output voltage on pin
RTCX2
0.5 1.8 1.95 V
USB pins (LPC2378 only)
I
OZ
OFF-state output
current
0V<V
I
<3.3V - - 10 A
V
BUS
bus supply voltage - - 5.25 V
V
DI
differential input
sensitivity voltage
(D+)  (D) 0.2 - - V
V
CM
differential common
mode voltage range
includes V
DI
range 0.8 - 2.5 V
V
th(rs)se
single-ended receiver
switching threshold
voltage
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 - - 0.18 V
V
OH
HIGH-level output
voltage (driven) for
low-/full-speed
R
L
of 15 k to GND 2.8 - 3.5 V
C
trans
transceiver
capacitance
pin to GND - - 20 pF
Z
DRV
driver output
impedance for driver
which is not
high-speed capable
with 33  series resistor;
steady state drive
[13]
36 - 44.1 
Table 7. Static characteristics
…continued
T
amb
=  40  C to +85  C for commercial applications, unless otherwise specified.
Symbol Parameter Conditions Min Typ
[1]
Max Unit