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参数资料
| 型号： | RX-4571SA |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO14 |
| 封装： | ROHS COMPLIANT, SOP-14 |
| 文件页数： | 55/76页 |
| 文件大小： | 1924K |
| 代理商： | RX-4571SA |
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USB 2.0 Hi-Speed Hub Controller
Datasheet
SMSC USB251x
59
Revision 1.1 (04-26-10)
DATASHEET
Notes:
When in bus-powered mode, the hub and its associated circuitry must not consume more than 100
mA from the upstream USB power source during t4+t5+t6+t7.
All power supplies must have reached the operating levels mandated in Chapter 9, DC Parameters,
prior to (or coincident with) the assertion of RESET_N.
8.7.1.3
RESET_N for SMBus Slave Configuration
Figure 8.8 Reset_N Timing for SMBus Mode
Notes:
For bus-powered configurations, the 99.5 ms (MAX) is required, and the hub and its associated
circuitry must not consume more than 100 mA from the upstream USB power source during
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 8.10 Reset_N Timing for SMBus Mode
NAME
DESCRIPTION
MIN
TYP
MAX
UNITS
t1
RESET_N Asserted.
1
μsec
t2
Hub Recovery/Stabilization.
500
μsec
t3
SMBus Code Load (See Note).
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 8.9 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
相关PDF资料 |
PDF描述 |
|---|---|
| RX-4574SG | 0 TIMER(S), REAL TIME CLOCK, PDSO16 |
| RX-4591CF | 0 TIMER(S), REAL TIME CLOCK, PDSO10 |
| RX-8025NB | 0 TIMER(S), REAL TIME CLOCK, PDSO22 |
| RX-8581JE-3 | REAL TIME CLOCK, PDSO20 |
| RX-8581JE | 0 TIMER(S), REAL TIME CLOCK, PDSO20 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| RX-4571SAB | 制造商:Epson Toyocom Corporation 功能描述:Cut Tape |
| RX-4574LC | 制造商:EPSONTOYOCOM 制造商全称:Epson ToYoCom 功能描述:SERIAL-INTERFACE REAL TIME CLOCK MODULE |
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