lpc2142 NXP Semiconductors, lpc2142 Datasheet - Page 28
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lpc2142
Manufacturer Part Number
lpc2142
Description
Single-chip 16-bit/32-bit Microcontrollers; Up To 512 Kb Flash With Isp/iap, Usb 2.0 Full-speed Device, 10-bit Adc And Dac
Manufacturer
NXP Semiconductors
Datasheet
1.LPC2142.pdf
(39 pages)
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NXP Semiconductors
Table 5.
T
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10] Applies to P1.16 to P1.31.
[11] On pin VBAT.
[12] Optimized for low battery consumption.
[13] To V
[14] Includes external resistors of 18
LPC2141_42_44_46_48_3
Product data sheet
Symbol
V
V
USB pins
I
V
V
V
V
V
V
C
Z
R
OZ
a
DRV
i(RTCX1)
o(RTCX2)
BUS
DI
CM
th(rs)se
OL
OH
trans
pu
= 40 C to +85 C for commercial applications, unless otherwise specified.
Typical ratings are not guaranteed. The values listed are at room temperature (25 ˚C), nominal supply voltages.
Core and external rail.
The RTC typically fails when V
Including voltage on outputs in 3-state mode.
V
3-state outputs go into 3-state mode when V
Accounts for 100 mV voltage drop in all supply lines.
Only allowed for a short time period.
Minimum condition for V
DD
SS
supply voltages must be present.
.
Static characteristics
Parameter
input voltage on pin
RTCX1
output voltage on pin
RTCX2
OFF-state output current
bus supply voltage
differential input sensitivity |(D+)
differential common mode
voltage range
single-ended receiver
switching threshold
voltage
LOW-level output voltage
HIGH-level output voltage R
transceiver capacitance
driver output impedance
for driver which is not
high-speed capable
pull-up resistance
I
= 4.5 V, maximum condition for V
i(VBAT)
…continued
1 % on D+ and D .
drops below 1.6 V.
Conditions
0 V < V
on the USB connector
includes V
R
pin to GND
steady state drive
SoftConnect = ON
L
L
of 1.5 k to 3.6 V
of 15 k to GND
DD
is grounded.
I
(D )|
< 3.3 V
Rev. 03 — 19 October 2007
DI
range
I
= 5.5 V.
[14]
LPC2141/42/44/46/48
Single-chip 16-bit/32-bit microcontrollers
Min
0
0
-
-
0.2
0.8
0.8
-
2.8
-
29
1.1
Typ
-
-
-
-
-
-
-
-
-
-
-
-
[1]
© NXP B.V. 2007. All rights reserved.
Max
1.8
1.8
5.25
-
2.5
2.0
0.3
3.6
20
44
1.9
10
28 of 39
Unit
V
V
V
V
V
V
V
V
pF
k
A