Datasheet

LPC2388_0 © NXP B.V. 2007. All rights reserved.
Preliminary data sheet Rev. 00.01 — 23 October 2007 41 of 57
NXP Semiconductors
LPC2388
Fast communication chip
[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] Including voltage on outputs in 3-state mode.
[4] V
DD(3V3)
supply voltages must be present.
[5] 3-state outputs go into 3-state mode when V
DD(3V3)
is grounded.
[6] Accounts for 100 mV voltage drop in all supply lines.
[7] Only allowed for a short time period.
[8] Minimum condition for V
I
= 4.5 V, maximum condition for V
I
= 5.5 V.
[9] On pin VBAT.
[10] To V
SS
.
[11] Includes external resistors of 18 Ω ± 1 % on D+ and D−.
V
DI
differential input
sensitivity
|(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 kΩ to 3.6 V - - 0.18 V
V
OH
HIGH-level output
voltage (driven) for
low-/full-speed
R
L
of 15 kΩ 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 Ω series resistor;
steady state drive
[11]
36 - 44.1 Ω
R
pu
pull-up resistance SoftConnect = ON 1.1 - 1.9 kΩ
Table 5. Static characteristics …continued
T
amb
= − 40 ° C to +85 ° C for commercial applications, unless otherwise specified.
Symbol Parameter Conditions Min Typ
[1]
Max Unit
Table 6. ADC static characteristics
V
DDA
= 2.5 V to 3.6 V; T
amb
= − 40 ° C to +85 ° C unless otherwise specified; ADC frequency 4.5 MHz.
Symbol Parameter Conditions Min Typ Max Unit
V
IA
analog input voltage 0 - V
DDA
V
C
ia
analog input capacitance - - 1 pF
E
D
differential linearity error
[1][2][3]
- - ±1 LSB
E
L(adj)
integral non-linearity
[1][4]
- - ±2 LSB
E
O
offset error
[1][5]
- - ±3 LSB
E
G
gain error
[1][6]
- - ±0.5 %
E
T
absolute error
[1][7]
- - ±4 LSB
R
vsi
voltage source interface
resistance
[8]
- - 40 kΩ