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USB2524 数据表(PDF) 45 Page - Microchip Technology

部件名 USB2524
功能描述  USB MultiSwitch Hub
PDF  58 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

USB2524 数据表(HTML) 45 Page - Microchip Technology

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2013 - 2016 Microchip Technology Inc.
DS00001588B-page 45
USB2524
Note 9-2
When in Bus-Powered mode, the Hub and its associated circuitry must not consume more than
100mA from the upstream USB power source during t4+t5+t6+t7.
9.1.1.3
RESET_N for SMBus Slave Configuration
t5
Host acknowledges attach and signals USB
Reset.
100
msec
t6
USB Idle.
undefined
msec
t7
Completion time for requests (with or without data
stage).
5
msec
FIGURE 9-3:
RESET_N TIMING FOR SMBUS MODE
TABLE 9-3:
RESET_N TIMING FOR SMBUS MODE
Name
Description
MIN
TYP
MAX
Units
t1
RESET_N Asserted.
1
sec
t2
Hub Recovery/Stabilization.
500
sec
t3
SMBus Code Load (See Note 9-3)
250
300
msec
t4
Hub Configuration and USB Attach.
100
msec
t5
Host acknowledges attach and signals USB
Reset.
100
msec
t6
USB Idle.
Undefined
msec
t7
Completion time for requests (with or without data
stage).
5
msec
TABLE 9-2:
RESET_N TIMING FOR EEPROM MODE (CONTINUED)
Name
Description
MIN
TYP
MAX
Units
t1
t2
t4
t5
t6
t7
RESET_N
VSS
Hardware
reset
asserted
Reset
Negation
SMBus Code
Load
Attach
USB
Upstream
USB Reset
recovery
Idle
Start
completion
request
response
t3
Hub PHY
Stabilization



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