參數資料
型號: KSZ8041NLJ TR
廠商: Micrel Inc
文件頁數: 22/43頁
文件大?。?/td> 0K
描述: TXRX PHY 10/100 3.3V 32MLF
標準包裝: 1
類型: 收發(fā)器
驅動器/接收器數: 1/1
規(guī)程: MII,RMII
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 32-VFQFN 裸露焊盤,32-MLF?
供應商設備封裝: 32-MLF?(5x5)
包裝: 標準包裝
其它名稱: 576-3625-6
2012 Microchip Technology Inc.
DS25118C-page 29
MCP47DA1
3.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 3-1.
Additional descriptions of the device pins follow.
TABLE 3-1:
PINOUT DESCRIPTION FOR THE MCP47DA1
3.1
Positive Power Supply Input (VDD)
The VDD pin is the device’s positive power supply input.
The input power supply is relative to VSS and can range
from 1.8V to 5.5V. A decoupling capacitor on VDD
(to VSS) is recommended to achieve maximum
performance. Analog specifications are tested from
2.7V.
3.2
Ground (VSS)
The VSS pin is the device ground reference.
3.3
I2C Serial Clock (SCL)
The SCL pin is the serial clock pin of the I2C interface.
The MCP47DA1 acts only as a slave and the SCL pin
accepts only external serial clocks. The SCL pin is an
open-drain output. Refer to Section 5.0 “Serial
Interface - I2C Module” for more details of I2C Serial
Interface communication.
3.4
I2C Serial Data (SDA)
The SDA pin is the serial data pin of the I2C interface.
The SDA pin has a Schmitt trigger input and an
open-drain output. Refer to Section 5.0 “Serial
Interface - I2C Module” for more details of I2C Serial
Interface communication.
3.5
Analog Output Voltage Pin (VOUT)
VOUT is the DAC analog output pin. The DAC output
has an output amplifier.
VOUT can swing from approximately VZS = 1/3 * VREF
to VFS = 2/3 * VREF. In normal mode, the DC impedance
of the output pin is about 1
Buffer” for more information.
3.6
Voltage Reference Pin (VREF)
This pin is the external voltage reference input. The
VREF pin signal is unbuffered so the reference voltage
must have the current capability not to drop its voltage
when connected to the internal resistor ladder circuit
(30 k
for more information.
Pin
Name
Package
Pin
Type
Buffer
Type
Function
SOT-23-6
SC70-6
VDD
1
P
Positive Power Supply Input
VSS
2
P
Ground
SCL
3
I/O
ST (OD)
I2C Serial Clock pin
SDA
4
I/O
ST (OD)
I2C Serial Data pin
VOUT
5
I/O
A
Output voltage
VREF
6
I/O
A
Reference Voltage for VOUT output
Legend: A = Analog input
ST (OD) = Schmitt Trigger with Open Drain
I = Input
O = Output
I/O = Input/Output
P = Power
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