參數(shù)資料
型號: MCP2200T-I/MQ
廠商: Microchip Technology
文件頁數(shù): 31/34頁
文件大小: 0K
描述: IC USB 2.0 - UART 20QFN
標(biāo)準(zhǔn)包裝: 3,300
特點(diǎn): USB 至 UART
通道數(shù): 8
FIFO's: 256 字節(jié)
規(guī)程: USB 2.0
電源電壓: 3 V ~ 5.5 V
帶自動流量控制功能:
安裝類型: 表面貼裝
封裝/外殼: 20-VQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 20-VQFN
包裝: 帶卷 (TR)
MCP2003/4/3A/4A
DS22230D-page 6
2010-2011 Microchip Technology Inc.
FIGURE 1-5:
OPERATIONAL MODES STATE DIAGRAM – MCP2004A
TABLE 1-1:
OVERVIEW OF OPERATIONAL MODES
State
Transmitter Receiver
Vren
Operation
Comments
POR
OFF
Check CS, if low then Ready;
If high transitions to either TOFF or Operation
mode, depending on TXD (2003/A), or TXD
and FAULT/TXE (2004/A).
VBB > VBB (min)
and Internal
Supply stable
Ready
OFF
ON
If CS high level, then either Operation or
TXOFF mode.
Bus Off state
Operation
ON
If CS low level, then Power-Down;
If FAULT/TXE low level, then Transmitter Off
mode.
Normal Operation
mode
Power-Down
OFF
Activity
Detect
OFF
On CS high level, go to READY then either
Operation mode or TXOFF.
MCP2003/2003A: Falling edge on WAKE will
put the device into READY mode.
MCP2003/MCP2004: falling edge on LIN bus
will put the device into READY mode.
MCP2003A/MCP2004A: rising edge on LIN
bus will put the device into READY mode.
Low Power mode
Transmitter Off
OFF
ON
If CS low level, then Power-Down;
If FAULT/TXE and TXD high, then Operation
mode
FAULT/TXE only
available on
MCP2004/2004A
POR
VREN OFF
RX OFF
TX OFF
VBAT>5.5V
Ready
VREN ON
RX ON
TX OFF
TOFF
Mode
VREN ON
RX ON
TX OFF
Operation
Mode
VREN ON
RX ON
TX ON
POWER
DOWN
VREN OFF
RX OFF
TX OFF
CS=1 & (TXE=0 or TXD=0)
CS=1 & TXD=1 & TXE=1
CS=1 & TXD=1 &TXE=1 &
No Fault
Fault (thermal or timeout)
or FAULT/TXE=0
CS=0
Rising edge on LIN
or CS=1
CS=0
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