ISP1103 데이터 시트보기 (PDF) - Philips Electronics
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ISP1103 Datasheet PDF : 17 Pages
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Philips Semiconductors
ISP1103
USB transceiver
Table 12: Dynamic characteristics: analog I/O pins (D+, D−); low-speed mode [1]…continued
VCC = VCC(3.3); VGND = 0 V; Tamb = −40 to +85 °C; CL = 50 pF; RPU = 1.5 kΩ on D− to VTERM.; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Driver timing
tPLH
propagation delay (VPO/VO, LOW-to-HIGH; see Figure 8 -
-
165
ns
tPHL
VMO/FSE0 to D+,D−)
HIGH-to-LOW; see Figure 8 -
-
145
ns
tPHZ
3-state output disable time
HIGH-to-OFF; see Figure 6 -
-
6
ns
tPLZ
(OE to D+,D−)
LOW-to-OFF; see Figure 6 -
-
5
ns
tPZH
3-state output enable time
OFF-to-HIGH; see Figure 6 -
-
100
ns
tPZL
(OE to D+,D−)
OFF-to-LOW; see Figure 6 -
-
100
ns
Receiver timing
Differential receiver
tPLH
propagation delay
tPHL
(D+,D− to RCV)
Single-ended receiver
LOW-to-HIGH; see Figure 7 -
-
9
ns
HIGH-to-LOW; see Figure 7 -
-
10
ns
tPLH
propagation delay
tPHL
(D+,D− to VP,VM)
LOW-to-HIGH; see Figure 7 -
-
5
ns
HIGH-to-LOW; see Figure 7 -
-
8
ns
[1] Test circuit: see Figure 11.
[2] Excluding the first transition from Idle state.
[3] Characterized only, not tested. Limits guaranteed by design.
VOH
VOL
tFR, tLR
tFF, tLF
90%
10%
90%
10%
Fig 5. Rise and fall times.
MGS255
+3.0 to +5.5 V
logic input
0V
+3.3 V
differential
data lines
0V
t PZH
t PZL
VCRS
Fig 6. Timing of OE to D+, D-.
1/ 2 VCC(3.3)
t PHZ
t PLZ
VOH − 0.3 V
VOL + 0.3 V
MGS257
+3.3 V
differential
data lines
0V
VOH
logic output
0V
t PLH
VCRS
t PHL
1/2VCC(3.3)
MGS256
Fig 7. Timing of D+, D- to RCV, VP, VM.
+3.0 to +5.5 V
logic input
0V
+3.3 V
differential
data lines
0V
t PLH
1/2VCC(3.3)
t PHL
VCRS
MGS254
Fig 8. Timing of VPO/VO, VMO/FSE0 to D+, D-.
9397 750 06329
Preliminary specification
Rev. 01 — 4 October 1999
© Philips Electronics N.V. 1999. All rights reserved.
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