isp1181 NXP Semiconductors, isp1181 Datasheet - Page 53

• Manufacturer Part Number: isp1181
• Description: Isp1181 Full-speed Universal Serial Bus Interface Device
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 58:
[1]
[2]
[3]
9397 750 08938
Product data
Symbol
Read timing (see
t
t
t
t
t
t
Write timing (see
t
t
t
t
t
t
t
ALE timing (see
t
t
t
RHAX
AVRL
SHDZ
RLRH
RLDV
SHRL
WHAX
AVWL
SHWL
WLWH
WHSH
DVWH
WHDZ
LH
AVLL
LLAX
Measured from CS going HIGH to CS and RD both going LOW.
Measured from CS going HIGH to CS and WR both going LOW.
Commands Acknowledge Setup, Clear Buffer, Validate Buffer and Write Endpoint Configuration require 180 ns to complete.
Dynamic characteristics: parallel interface timing
Parameter
address hold time after RD
HIGH
address setup time before RD
LOW
data outputs high-impedance
time after CS HIGH
RD pulse width
data valid time after RD LOW
read interval after CS HIGH
address hold time after WR
HIGH
address setup time before WR
LOW
write interval after CS HIGH
WR pulse width
chip deselect time after WR
HIGH
data setup time before WR
HIGH
data hold time after WR HIGH
ALE pulse width
address setup time before ALE
LOW
address hold time after ALE
LOW
Figure
Figure
Figure
19.2 Parallel I/O timing
21)
19)
20)
[1]
[2]
Conditions
reading
writing
Rev. 04 — 30 October 2001
8-bit bus
Min
3
0
-
25
-
90
3
0
90/180
22
0
5
3
20
10
0
0
[3]
Max
-
-
3
-
22
-
-
-
-
-
-
-
-
-
-
10
-
© Koninklijke Philips Electronics N.V. 2001. All rights reserved.
16-bit bus
Min
3
0
-
25
-
180
3
0
180
22
0
5
3
20
10
0
0
Full-speed USB interface
Max
-
-
3
-
22
-
-
-
-
-
-
-
-
-
-
10
-
ISP1181
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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