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参数资料
| 型号： | PCF8591T-T |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO16 |
| 封装： | 7.50 MM, PLASTIC, SOT162-1, SO-16 |
| 文件页数： | 3/28页 |
| 文件大小： | 139K |
| 代理商： | PCF8591T-T |
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2003 Jan 27
11
Philips Semiconductors
Product specication
8-bit A/D and D/A converter
PCF8591
7.5
Reference voltage
For the D/A and A/D conversion either a stable external
voltage reference or the supply voltage has to be applied
to the resistor divider chain (pins VREF and AGND).
The AGND pin has to be connected to the system analog
ground and may have a DC off-set with reference to VSS.
A low frequency may be applied to the VREF and AGND
pins. This allows the use of the D/A converter as a
one-quadrant multiplier; see Chapter 15 and Fig.7.
The A/D converter may also be used as a one or two
quadrant analog divider. The analog input voltage is
divided by the reference voltage. The result is converted to
a binary code. In this application the user has to keep the
reference voltage stable during the conversion cycle.
7.6
Oscillator
An on-chip oscillator generates the clock signal required
for the A/D conversion cycle and for refreshing the
auto-zeroed buffer amplifier. When using this oscillator the
EXT pin has to be connected to VSS. At the OSC pin the
oscillator frequency is available.
If the EXT pin is connected to VDD the oscillator output
OSC is switched to a high-impedance state allowing the
user to feed an external clock signal to OSC.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PCF8593 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Low power clock/calendar |
| PCF8593P | 制造商:NXP Semiconductors 功能描述:Clock/Calendar/Alarm/Timer/Interrupt Serial (I2C) Bulk 制造商:NXP Semiconductors 功能描述:IC RTC/CALENDAR 8593 DIP8 制造商:NXP Semiconductors 功能描述:IC, RTC/CALENDAR, 8593, DIP8 制造商:NXP Semiconductors 功能描述:IC, RTC/CALENDAR, 8593, DIP8; Date Format:DD:MM:YYYY; Clock Format:HH:MM:SS; Clock IC Type:Clock, Calendar; Supply Voltage Min:1V; Supply Voltage Max:6V; Digital IC Case Style:DIP; No. of Pins:8; Interface Type:I2C; Operating ;RoHS Compliant: Yes |
| PCF8593P,112 | 功能描述:实时时钟 CLOCK/CALENDAR LOW PWR RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| PCF8593P112 | 制造商:NXP Semiconductors 功能描述:IC RTC YY-MM-DD-dd DIP-8 制造商:NXP Semiconductors 功能描述:IC RTC/CALENDAR 8593 DIP8 |
| PCF8593T | 制造商:PHILIPS-SEMI 功能描述: 制造商:NXP Semiconductors 功能描述:Real Time Clock, 8 Pin, Plastic, SOP |
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