ISP1160
Embedded USB Host Controller
Philips Semiconductors
17. Dynamic characteristics
Table 71: Dynamic characteristics
VCC = 3.0 V to 3.6 V or 4.0 V to 5.5 V; VGND = 0 V; Tamb = −40 °C to +85 °C; unless otherwise specified.
Symbol
Reset
Parameter
Conditions
Min
Typ
Max
Unit
tW(RESET_N) pulse width on input RESET_N crystal oscillator running
crystal oscillator stopped
160
-
-
-
-
-
µs
[1]
ms
Crystal oscillator
fXTAL
RS
crystal frequency
series resistance
load capacitance
-
-
-
6
-
MHz
Ω
-
100
-
CLOAD
Cx1, Cx2 = 22 pF
18
pF
External clock input
tJ
external clock jitter
-
-
500
55
3
ps
%
tDUTY
tCR, tCF
clock duty cycle
45
-
50
-
rise time and fall time
ns
[1] Dependent on the crystal oscillator start-up time.
Table 72: Dynamic characteristics: analog I/O pins D+ and D−
VCC = 3.0 V to 3.6 V or 4.0 V to 5.5 V; VGND = 0 V; Tamb = −40 °C to +85 °C; CL = 50 pF; see Figure 42 for test circuit; unless
otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Driver characteristics
tFR
rise time
CL = 50 pF;
4
-
20
ns
10 % to 90 % of
|VOH − VOL
|
tFF
fall time
CL = 50 pF;
4
-
20
ns
90 % to 10 % of
|VOH − VOL
|
[1]
FRFM
VCRS
differential rise/fall time
90
-
-
111.11
2.0
%
matching (tFR/tFF
)
[1][2]
output signal crossover voltage
1.3
V
[1] Excluding the first transition from Idle state.
[2] Characterized only, not tested. Limits guaranteed by design.
9397 750 11371
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
Product data
Rev. 04 — 04 July 2003
74 of 88
NXP [ NXP ]
