參數(shù)資料
型號： ISP1161A1BM,557
廠商： NXP SEMICONDUCTORS
元件分類： 總線控制器
英文描述： UNIVERSAL SERIAL BUS CONTROLLER, PQFP64
封裝： 7 X 7 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-414-1, LQFP-64
文件頁數(shù)： 17/137頁
文件大?。?/td> 599K
代理商： ISP1161A1BM,557
Philips Semiconductors
ISP1161A1
USB single-chip host and device controller
Product data
Rev. 03 — 23 December 2004
112 of 136
9397 750 13961
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
16. Power-on reset (POR)
When VCC is directly connected to the RESET pin, the internal pulse width (tPORP) will
be typically (600 ns to 1000 ns)
+ X, when V
CC is 3.3 V. X depends on how fast VCC is
rising with respect to Vtrip (2.03 V). The time X is decided by the external power
supply circuit.
To give a better view of the functionality, Figure 49 shows a possible curve of
VCC(POR) with dips at t2–t3 and t4–t5. If the dip at t4–t5 is too short (that is, < 11 s),
the internal POR pulse will not react and will remain LOW. The internal POR starts
with a 1 at t0. At t1, the detector will see the passing of the trip level and a delay
element will add another tPORP before it drops to 0.
The internal POR pulse will be generated whenever VCC(POR) drops below Vtrip for
more than 11
s.
Even if VCC is 5.0 V, Vtrip still remains at 2.03 V. This is because the 5 V tolerant pads
and on-chip voltage regulator ensure that 3.3 V is going to the internal POR circuitry
by clipping the voltage above 3.3 V.
The RESET pin can be either connected to VCC (using the internal POR circuit) or
externally controlled (by the micro, ASIC, and so on).
Figure 50 shows the availability of the clock with respect to the external POR.
(1) PORP = power-on reset pulse.
Fig 49. Internal POR timing.
Stable external clock is available at A.
Fig 50. Clock with respect to the external POR.
004aaa389
VBAT(POR)
t0
t1
t2
t3
t4
t5
Vtrip
t
PORP
PORP(1)
t
PORP
POR
EXTERNAL CLOCK
A
004aaa365
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISP1161A1BMGA 功能描述:IC USB HOST/DEVICE CTRLR 64-LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:4,900 系列:- 控制器類型:USB 2.0 控制器 接口:串行 電源電壓:3 V ~ 3.6 V 電流 - 電源:135mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:36-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:36-QFN（6x6） 包裝:* 其它名稱:Q6396337A
ISP1161A1BM-S 功能描述:USB 接口集成電路 USB HOST+DEV CTRLR RoHS:否 制造商:Cypress Semiconductor 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
ISP1161A1BM-T 功能描述:USB 接口集成電路 USB1.1 HOST/DEVICE CONTROLLER RoHS:否 制造商:Cypress Semiconductor 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
ISP1161A1BMUM 功能描述:IC USB HOST CONTROLLER 64LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:4,900 系列:- 控制器類型:USB 2.0 控制器 接口:串行 電源電壓:3 V ~ 3.6 V 電流 - 電源:135mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:36-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:36-QFN（6x6） 包裝:* 其它名稱:Q6396337A
ISP1161ABD 功能描述:IC USB HOST/DEVICE CTRLR 64-LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:4,900 系列:- 控制器類型:USB 2.0 控制器 接口:串行 電源電壓:3 V ~ 3.6 V 電流 - 電源:135mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:36-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:36-QFN（6x6） 包裝:* 其它名稱:Q6396337A
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