参数资料
| 型号： | PCA9507DP,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 14/20页 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 24B 8TSSOP |
| 产品培训模块： | I²C Bus Fundamentals |
| 特色产品： | NXP - I2C Interface |
| 标准包装： | 1 |
| 接口： | I²C，SM 总线 |
| 输入/输出数： | 2 输入，2 输出 |
| 中断输出： | 无 |
| 频率 - 时钟： | 400kHz |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-TSSOP |
| 包装： | 标准包装 |
| 其它名称： | 568-5924-6 |
PCA9507_1
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 01 — 7 February 2008
3 of 20
NXP Semiconductors
PCA9507
2-wire serial bus extender for HDMI DDC I2C-bus and SMBus
5.
Pinning information
5.1 Pinning
5.2 Pin description
6.
Functional description
The PCA9507 consists of a pair of bidirectional open-drain I/Os specically designed to
support up-translation/down-translation between low voltages (as low as 2.7 V) and a
3.3 V or 5 V I2C-bus and SMBus. The device contains a rise time accelerator on port A
that enables the device to drive a long cable or a heavier capacitive load for DDC, I2C-bus
and SMBus applications. With dual supply rails, the device translates from voltage ranges
2.7 V to 5.5 V down to a voltage as low as 2.7 V without degradation of system
performance. All I/Os are overvoltage tolerant to 5.5 V even when the device is
un-powered (VCC(B) and/or VCC(A) = 0 V).
The PCA9507 includes a power-up circuit that keeps the output drivers turned off until
VCC(A) and VCC(B) rise above 2.7 V. VCC(A) and VCC(B) can be applied in any sequence at
power-up.
Fig 2.
Pin conguration for SO8
Fig 3.
Pin conguration for TSSOP8
PCA9507D
VCC(A)
VCC(B)
SCLA
SCLB
SDAA
SDAB
GND
EN
002aad399
1
2
3
4
6
5
8
7
PCA9507DP
VCC(A)
VCC(B)
SCLA
SCLB
SDAA
SDAB
GND
EN
002aad400
1
2
3
4
6
5
8
7
Table 2.
Pin description
Symbol
Pin
Description
VCC(A)
1
port A supply voltage (2.7 V to 5.5 V)
SCLA
2
serial clock port A bus with rise time accelerator for DDC line or cable,
5 V tolerant
SDAA
3
serial data port A bus with rise time accelerator for DDC line or cable,
5 V tolerant
GND
4
supply ground (0 V)
EN
5
active HIGH buffer enable input
SDAB
6
serial data port B bus with static level offset, 5 V tolerant
SCLB
7
serial clock port B bus with static level offset, 5 V tolerant
VCC(B)
8
port B supply voltage (2.7 V to 5.5 V)
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相关代理商/技术参数 |
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| PCA9507DP-T | 功能描述:接口-信号缓冲器、中继器 LEVEL TRANSL I2C BUS REPEATER RoHS:否 制造商:Texas Instruments 工作电源电压: 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:VSSOP-8 封装:Reel |
| PCA9507D-T | 功能描述:接口-信号缓冲器、中继器 LEVEL TRANSL I2C BUS REPEATER RoHS:否 制造商:Texas Instruments 工作电源电压: 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:VSSOP-8 封装:Reel |
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| PCA9508D | 功能描述:接口-信号缓冲器、中继器 HOTSWAP LVTTL I2C-BUS REPEATER RoHS:否 制造商:Texas Instruments 工作电源电压: 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:VSSOP-8 封装:Reel |
| PCA9508D,112 | 功能描述:接口-信号缓冲器、中继器 HOTSWAP LVTTL RoHS:否 制造商:Texas Instruments 工作电源电压: 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:VSSOP-8 封装:Reel |
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