LPC2148 Philips, LPC2148 Datasheet - Page 33

• Manufacturer Part Number: LPC2148
• Description: 16/32 Bit Microcontroller
• Manufacturer: Philips

Philips Semiconductors
9. Dynamic characteristics
Table 12:
C
[1]
Table 13:
T
[1]
[2]
9397 750 14985
Preliminary data sheet
Symbol
t
t
t
V
t
t
t
t
t
t
Symbol
External clock
f
T
t
t
t
t
Port pins (except P0.2 and P0.3)
t
t
I
t
r
f
RFM
EOPT
DEOP
JR1
JR2
EOPR1
EOPR2
osc
CHCX
CLCX
CLCH
CHCL
r(O)
f(O)
2
of
a
L
clk
CRS
C-bus pins (P0.2 and P0.3)
= 0
= 50 pF; R
Characterized but not implemented as production set. Guaranteed by design.
Parameters are valid over operating temperature range unless otherwise specified.
Bus capacitance C
°
C to +70
Dynamic characteristics of USB pins (full-speed)
Dynamic characteristics
PU
= 1.5 k
°
C for commercial applications,
Parameter
oscillator frequency
oscillator clock period
clock HIGH time
clock LOW time
clock rise time
clock fall time
output rise time
output fall time
output fall time
Parameter
rise time
fall time
rise/fall time matching (t
output signal crossover voltage
source EOP width
differential data to EOP transition
skew
receiver data jitter tolerance to next
transition
receiver data jitter tolerance for
paired transitions
EOP width at receiver
EOP width at receiver
b
in pF, from 10 pF to 400 pF.
Ω
on D+ to V
3V3
; unless otherwise specified
[1]
[1]
r
/t
f
)
−
40
Rev. 01 — 22 June 2005
°
C to +85
V
Conditions
Conditions
10 % to 90 %
10 % to 90 %
see
see
10 % to 90 %
must reject as
EOP; see
Figure 6
must accept as
EOP; see
Figure 6
IH
to V
Figure 6
Figure 6
°
C for industrial applications, V
IL
Min
10
40
T
T
-
-
-
-
20 + 0.1 × C
clk
clk
Single-chip 16/32-bit microcontrollers
× 0.4
× 0.4
Min
4
4
90
160
−2
−18.5
−9
40
82
1.3
b
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
LPC2142/2148
[2]
DD
Typ
-
-
-
-
-
-
-
-
-
-
Typ
-
-
-
-
-
-
10
10
-
over specified ranges
[1]
Max
20
20
110
2.0
175
+5
+18.5
+9
-
-
25
100
5
-
Max
-
-
5
-
-
Unit
ns
ns
%
V
ns
ns
ns
ns
ns
ns
33 of 40
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
[1]