參數(shù)資料
型號: ISP1181B
廠商: NXP Semiconductors N.V.
英文描述: Full-speed Universal Serial Bus peripheral controller
中文描述: 全速通用串行總線外設控制器
文件頁數(shù): 45/70頁
文件大?。?/td> 341K
代理商: ISP1181B
Philips Semiconductors
ISP1181B
Full-speed USB peripheral controller
Product data
Rev. 02 — 07 December 2004
45 of 70
9397 750 13958
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
16. Power-on reset
The ISP1181B has an internal power-on reset (POR) circuit. Input pin RESET can be
directly connected to V
CC
. The clock signal on output CLKOUT starts 0.5 ms after
power-on and normally requires 3 to 4 ms to stabilize.
The triggering voltage of the POR circuit is 2.0 V nominal. A POR is automatically
generated when V
CC
goes below the trigger voltage for a duration longer than 50
μ
s.
A hardware reset disables all USB endpoints and clears all ECRs, except for the
control endpoint which is fixed and always enabled.
Section 9.3
explains how to
(re-)initialize the endpoints.
t
1
: clock is running
t
2
: BUS_CONF pins are sampled
t
3
: registers are accessible
(1) Supply voltage (5 V or 3.3 V), connected externally to pin RESET.
Fig 14. Power-on reset timing.
MGT026
t1
t2
t3
VCC (1)
2.0 V
0 V
350
μ
s
>
50
μ
s
1 ms
1 ms
POR
相關PDF資料
PDF描述
ISP1181BBS Full-speed Universal Serial Bus peripheral controller
ISP1181BDGG Full-speed Universal Serial Bus peripheral controller
ISP1181 Full-speed Universal Serial Bus Interface Device(全速通用串行總線接口器件)
ISP1181DGG INDUCTOR 4.7NH +-.3NH 0402 SMD
ISP1183 Low-power Universal Serial Bus interface device with DMA
相關代理商/技術參數(shù)
參數(shù)描述
ISP1181BBS 制造商:NXP Semiconductors 功能描述:IC CONTROLLER USB PERIPHERAL SMD 制造商:ST-Ericsson 功能描述:CONTROLLER USB PERIPHERAL 48HVQFN
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ISP1181BBS,551 功能描述:USB 接口集成電路 USB 1.1 DEVICE CONTROLLER RoHS:否 制造商:Cypress Semiconductor 產品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20
ISP1181BBS,557 功能描述:USB 接口集成電路 DO NOT USE ORDER -S OR -T PART RoHS:否 制造商:Cypress Semiconductor 產品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20
ISP1181BBS518 制造商:ST-Ericsson 功能描述:CONTROLLER USB PERIPHERAL 48HVQFN