MCP2140A-I/SS Microchip Technology, MCP2140A-I/SS Datasheet - Page 5

• Manufacturer Part Number: MCP2140A-I/SS
• Description: IC IRDA CONTROLLR DTE/DCE 20SSOP
• Manufacturer: Microchip Technology

Specifications of MCP2140A-I/SS

• Interface: UART
• Controller Type: IRDA Standard Protocol Stack Controller
• Voltage - Supply: 3 V ~ 5.5 V
• Current - Supply: 2.2mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 20-SSOP
• Supply Voltage Range: 3V To 5.5V
• Power Dissipation Pd: 800mW
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: SSOP
• No. Of Pins: 20
• Svhc: No SVHC (15-Dec-2010)
• Interface Type: UART
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MCP2140DM-TMPSNS - BOARD DEMO FOR MCP2140
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

TABLE 1-1:
© 2007 Microchip Technology Inc.
RXPDREF
TXIR
PHACT
RESET
V
NC
TX
RX
RI
DSR
DTR
CTS
Legend:
Note 1:
Pin Name
SS
TTL = TTL compatible input
A = Analog
CMOS = CMOS compatible input
I = Input
The state of the DSR output pin does not reflect the state of the DTR bit of the IrDA Primary Device.
PDIP
10
12
11
1
2
3
4
5
6
7
9
MCP2140A PIN DESCRIPTION NORMAL OPERATION (DCE)
8
Pin Number
SOIC SSOP
10
11
12
1
2
3
4
5
6
7
8
9
5, 6
10
12
13
11
1
2
3
4
7
8
9
Type
Pin
OC
—
O
O
O
O
I
I
I
I
I
I
Buffer
Type
ST = Schmitt Trigger input with CMOS levels
P = Power
OC = Open collector output
O = Output
TTL
TTL
TTL
ST
—
—
—
—
—
—
A
P
IR Receive Photo Detect Diode reference voltage. This
voltage will typically be in the range of V
Asynchronous transmit to IrDA transceiver.
Protocol Handler Active. Indicates the state of the
MCP2140A Protocol Handler. This output is an open
collector, so an external pull-up resistor may be required.
1 = Protocol Handler is in the Discovery or NRM state
0 = Protocol Handler is in NDM state or the MCP2140A is in
Resets the Device
Ground reference for logic and I/O pins
No connect
Asynchronous receive; from Host Controller UART
Asynchronous transmit; to Host Controller UART
Ring Indicator. The state of this bit is communicated to the
IrDA Primary Device.
1 = No Ring Indicate Present
0 = Ring Indicate Present
Data Set Ready. Indicates that the MCP2140A has estab-
lished a valid IrDA link with a Primary Device
is locally emulated and not related to the DTR bit of the IrDA
Primary Device.
1 = An IR link has not been established
0 = An IR link has been established (IR Link)
Data Terminal Ready. Indicates that the Embedded device
connected to the MCP2140A is ready for IR data. The state
of this bit is communicated to the IrDA Primary Device via
the IrDA DSR bit carried by IrCOMM.
1 = Embedded device not ready
0 = Embedded device ready
Clear to Send. Indicates that the MCP2140A is ready to
receive data from the Host Controller. This signal is locally
emulated and not related to the CTS/RTS bit of the IrDA
Primary Device.
1 = Host Controller should not send data
0 = Host Controller may send data
Low Power mode
(No IR Link)
Description
MCP2140A
DD
/2.
DS22050A-page 5
(1)
. This signal