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參數資料
| 型號： | ISP1160BM |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 總線控制器 |
| 英文描述： | Embedded Universal Serial Bus Host Controller |
| 中文描述： | 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： | 70/88頁 |
| 文件大小： | 2044K |
| 代理商： | ISP1160BM |
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Philips Semiconductors
ISP1160
Embedded USB Host Controller
Product data
Rev. 04 — 04 July 2003
70 of 88
9397 750 11371
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
13. Power-on reset (POR)
When V
CC
is directly connected to the RESET_N pin, the internal pulse width (t
PORP
)
will be typically (600 ns to 1000 ns)
+
X, when V
CC
is 3.3 V. The time X depends on
how fast V
CC
is rising with respect to V
trip
(2.03 V). The time X is decided by the
external power supply circuit.
To give a better view of the functionality,
Figure 33
shows a possible curve of
V
CC(POR)
with dips at t2-t3 and t4-t5. If the dip at t4-t5 is too short (that is, <11
μ
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 t
PORP
before it drops to 0.
The internal POR pulse will be generated whenever V
CC(POR)
drops below V
trip
for
more than 11
μ
s.
Even if V
CC
is 5.0 V, V
trip
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_N pin can be either connected to V
CC
(using the internal POR circuit) or
externally controlled (by the microprocessor, ASIC, and so on).
Figure 34
shows the
availability of the clock with respect to the external POR.
(1) PORP = power-on reset pulse.
Fig 33. Internal POR timing.
Stable external clock is available at A.
Fig 34. Clock with respect to the external POR.
004aaa389
VCC(POR)
t0
t1
t2
t3
t4
t5
Vtrip
tPORP
PORP(1)
tPORP
POWER-ON RESET
EXTERNAL CLOCK
A
004aaa365
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ISP1160BM,557 | 功能描述:USB 接口集成電路 USB 1.1 HOST CONTROLLER RoHS:否 制造商:Cypress Semiconductor 產品:USB 2.0 數據速率: 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 |
| ISP1160BM/01 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Embedded Universal Serial Bus Host Controller |
| ISP1160BM/01,118 | 功能描述:USB 接口集成電路 USB HOST CTRL RoHS:否 制造商:Cypress Semiconductor 產品:USB 2.0 數據速率: 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 |
| ISP1160BM/01,151 | 功能描述:USB 接口集成電路 DO NOT USE ORDER -T OR NO "-" RoHS:否 制造商:Cypress Semiconductor 產品:USB 2.0 數據速率: 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 |
| ISP1160BM/01,157 | 功能描述:USB 接口集成電路 USB FULL SPEED HOST RoHS:否 制造商:Cypress Semiconductor 產品:USB 2.0 數據速率: 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 |
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