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参数资料
型号： ISP1181ABS,551
厂商： ST-ERICSSON
元件分类： 总线控制器
英文描述： UNIVERSAL SERIAL BUS CONTROLLER, PQCC48
封装： 7 X 7 MM, 0.85 MM HEIGHT, PLASTIC, MO-220, SOT-619-2, HVQFN-48
文件页数： 38/70页
文件大小： 341K
代理商： ISP1181ABS,551
Philips Semiconductors
ISP1181A
Full-speed USB peripheral controller
Product data
Rev. 05 — 08 December 2004
43 of 70
9397 750 13959
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
14. Power supply
The ISP1181A is powered from a single supply voltage, ranging from 4.0 V to 5.5 V.
An integrated voltage regulator provides a 3.3 V supply voltage for the internal logic
and the USB transceiver. This voltage is available at pin Vreg(3.3) for connecting an
external pull-up resistor on USB connection D
+. See Figure 9.
The ISP1181A can also be operated from a 3.0 V to 3.6 V supply, as shown in
Figure 10. In this case, the internal voltage regulator is disabled and pin Vreg(3.3) must
be connected to VCC.
15. Crystal oscillator and LazyClock
The ISP1181A has a crystal oscillator designed for a 6 MHz parallel-resonant crystal
(fundamental). A typical circuit is shown in Figure 11. Alternatively, an external clock
signal of 6 MHz can be applied to input XTAL1, while leaving output XTAL2 open.
The 6 MHz oscillator frequency is multiplied to 48 MHz by an internal PLL. This
frequency is used to generate a programmable clock output signal at pin CLKOUT,
ranging from 3 MHz to 48 MHz.
In ‘suspend’ state the normal CLKOUT signal is not available, because the crystal
oscillator and the PLL are switched off to save power. Instead, the CLKOUT signal
can be switched to the LazyClock frequency of 100 kHz
± 50 %.
The oscillator operation and the CLKOUT frequency are controlled via the Hardware
Conguration Register, as shown in Figure 12. The following bits are involved:
CLKRUN switches the oscillator on and off
CLKDIV[3:0] is the division factor determining the normal CLKOUT frequency
NOLAZY controls the LazyClock signal output during ‘suspend’ state.
Fig 9.
ISP1181A with a 4.0 V to 5.5 V supply.
Fig 10. ISP1181A with a 3.0 V to 3.6 V supply.
VCC
VCC(3.3)
Vreg(3.3)
ISP1181A
004aaa026
4.0 V to 5.5 V
Vref
3.0 V to 3.6 V
004aaa027
VCC
VCC(3.3)
Vreg(3.3)
ISP1181A
Vref
Fig 11. Typical oscillator circuit.
CLKOUT
6 MHz
18 pF
XTAL2
XTAL1
004aaa028
ISP1181A
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相关代理商/技术参数
参数描述
ISP1181ABSGE 功能描述:IC USB CNTRLR FULL-SPD 48-HVQFN RoHS:是 类别:集成电路 (IC) >> 接口 - 控制器 系列:- 标准包装:4,900 系列:- 控制器类型:USB 2.0 控制器 接口:串行 电源电压:3 V ~ 3.6 V 电流 - 电源:135mA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:36-VFQFN 裸露焊盘 供应商设备封装:36-QFN（6x6） 包装:* 其它名称:Q6396337A
ISP1181ABS-S 功能描述:IC USB HOST CTRL FULL-SPD 48HVQF RoHS:是 类别:集成电路 (IC) >> 接口 - 控制器 系列:- 标准包装:4,900 系列:- 控制器类型:USB 2.0 控制器 接口:串行 电源电压:3 V ~ 3.6 V 电流 - 电源:135mA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:36-VFQFN 裸露焊盘 供应商设备封装:36-QFN（6x6） 包装:* 其它名称:Q6396337A
ISP1181ABS-T 功能描述:USB 接口集成电路 USB 1.1 ADV DEVICE RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20
ISP1181ABSUM 功能描述:IC USB HOST CTRL FULL-SPD 48HVQF RoHS:是 类别:集成电路 (IC) >> 接口 - 控制器 系列:- 标准包装:4,900 系列:- 控制器类型:USB 2.0 控制器 接口:串行 电源电压:3 V ~ 3.6 V 电流 - 电源:135mA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:36-VFQFN 裸露焊盘 供应商设备封装:36-QFN（6x6） 包装:* 其它名称:Q6396337A
ISP1181ADGG 功能描述:USB 接口集成电路 USB CNTRLR FULL-SPD RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20
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