MCP2200T-I/SO Microchip Technology, MCP2200T-I/SO Datasheet - Page 4

• Manufacturer Part Number: MCP2200T-I/SO
• Description: USB 2.0 To UART Protocol Converter With GPIO 20 SOIC .300in T/R
• Manufacturer: Microchip Technology

Specifications of MCP2200T-I/SO

• Features: USB to UART
• Number Of Channels: 8
• Fifo's: 256 Byte
• Protocol: USB 2.0
• Voltage - Supply: 3 V ~ 5.5 V
• With Auto Flow Control: Yes
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC (0.300", 7.50mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MCP2003/4
1.3
For an overview of all operational modes, refer to
Table
1.3.1
In Power-Down mode, the transmitter and V
both off. Only the receiver section and the wake-up
circuits are operational. This is the lowest power
mode.
On bus activity (e.g. a BREAK character), CS going to
a high level, or on a falling edge on WAKE, the device
will immediately enter Ready mode. If CS is held high
as the device transitions from Power-Down to Ready
mode, the device will transition to Operation mode as
soon as internal voltages stabilize.
1.3.2
Upon entering the Ready mode, V
the receiver detect circuit is powered up. The transmit-
ter remains disabled and the device is ready to receive
data but not to transmit.
Upon VBB supply pin power-on, the device will remain
in Ready mode as long as CS is low. If CS transitions
high, the device will enter Operation mode. However, if
FIGURE 1-2:
DS22230C-page 4
Note:
1-1.
VREN OFF
Modes of Operation
RX OFF
TX OFF
POR
Bus activity is defined as LBUS dropping
below V
Activity Debounce time (tBDB)
READY MODE
POWER-DOWN MODE
IL
(L
OPERATIONAL MODES STATE DIAGRAM – MCP2003
BUS
VBAT > 5.5V
) for longer than the Bus
Falling edge
or CS =
REN
on LIN
is enabled and
REN
are
Power-Down
CS =
VREN OFF
VREN ON
Ready
TX OFF
RX OFF
TX OFF
Mode
Mode
RX ON
CS =
VREN ON
and TXD
TX OFF
TOFF
Mode
RX ON
the T
will transition to Transmitter Off mode instead of
Operation mode.
1.3.3
In this mode, all internal modules are operational.
The MCP2003/4 will go into the Power-Down mode on
the falling edge of CS. The MCP2003/4 will enter
Transmitter Off mode in the event of a Fault condition.
These include: thermal overload, bus contention and
T
The MCP2004 device can also enter Transmitter Off
mode if the FAULT/TXE pin is pulled low
1.3.4
Transmitter Off mode is reached whenever the
transmitter is disabled either due to a Fault condition or
pulling the nFAULT/TXE pin low on the MCP2004. The
fault conditions include: thermal overload, bus
contention or TXD timer expiration.
The MCP2003/4 will go into Power-Down mode on
falling edge of CS, or return to Operation mode if all
faults are resolved and the FAULT/TXE pin on the
MCP2004 is high.
XD
timer expiration.
XD
pin is held low when CS goes high, the device
OPERATION MODE
TRANSMITTER OFF MODE
CS =
(Thermal or Timer)
and No Fault
CS =
TXD =
Fault
and TXD =
CS =
and
 2010 Microchip Technology Inc.
Operation
VREN ON
Mode
RX ON
TX ON