MCB2470 Keil, MCB2470 Datasheet - Page 57

• Manufacturer Part Number: MCB2470
• Description: BOARD EVAL NXP LPC247X SERIES
• Manufacturer: Keil
• Type: MCUr

Specifications of MCB2470

• Contents: Board, Cable, CD
• For Use With/related Products: LPC2478
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NXP Semiconductors
10. Dynamic characteristics
Table 9.
C
[1]
Table 10.
T
[1]
[2]
[3]
LPC2478_1
Preliminary data sheet
Symbol
t
t
t
V
t
t
t
t
t
t
Symbol
External clock
f
T
t
t
t
t
I
t
r
f
FRFM
FEOPT
FDEOP
JR1
JR2
EOPR1
EOPR2
osc
CHCX
CLCX
CLCH
CHCL
2
f(o)
amb
L
cy(clk)
CRS
C-bus pins (P0[27] and P0[28])
= 50 pF; R
Characterized but not implemented as production test. Guaranteed by design.
Parameters are valid over operating temperature range unless otherwise specified.
Typical ratings are not guaranteed. The values listed are at room temperature (25 °C), nominal supply voltages.
Bus capacitance C
=
−
40
°
Dynamic characteristics of USB pins (full-speed)
Dynamic characteristics
C to +85
pu
= 1.5 k
Parameter
oscillator frequency
clock cycle time
clock HIGH time
clock LOW time
clock rise time
clock fall time
output fall time
Parameter
rise time
fall time
differential rise and fall time
matching
output signal crossover voltage
source SE0 interval of EOP
source jitter for differential transition
to SE0 transition
receiver jitter to next transition
receiver jitter for paired transitions
EOP width at receiver
EOP width at receiver
b
°
in pF, from 10 pF to 400 pF.
C for commercial applications; V
Ω
on D+ to V
DD(3V3)
,unless otherwise specified.
Rev. 01 — 9 February 2007
DD(3V3)
Conditions
V
Conditions
10 % to 90 %
10 % to 90 %
see
see
10 % to 90 %
must reject as
EOP; see
Figure 10
must accept as
EOP; see
Figure 10
t
IH
r
/ t
to V
Figure 10
Figure 10
f
over specified ranges.
IL
1
40
-
Min
T
T
-
20 + 0.1 × C
[1]
[1]
cy(clk)
cy(clk)
Min
8.5
7.7
-
1.3
160
−2
−18.5
−9
40
82
× 0.4
× 0.4
[1]
b
[3]
Fast communication chip
Typ
-
-
-
-
-
-
-
-
-
-
Typ
-
-
-
-
-
-
-
[2]
LPC2478
© NXP B.V. 2007. All rights reserved.
Max
13.8
13.7
109
2.0
175
+5
+18.5
+9
-
-
Max
24
100
-
-
5
5
-
Unit
ns
ns
%
V
ns
ns
ns
ns
ns
ns
Unit
MHz
ns
ns
ns
ns
ns
57 of 76
ns