MCP2140-I/SS Microchip Technology, MCP2140-I/SS Datasheet - Page 8

• Manufacturer Part Number: MCP2140-I/SS
• Description: IC IRDA CONTROLLR DTE/DCE 20SSOP
• Manufacturer: Microchip Technology

Specifications of MCP2140-I/SS

• Controller Type: IRDA Standard Protocol Stack Controller
• Interface: UART
• 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
• Ic Interface Type: Serial
• Interface Applications: IrDA Standard Protocol
• Supply Voltage Range: 3V To 5.5V
• Power Dissipation Pd: 1W
• Operating Temperature Range: -40°C To +85°C
• 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

MCP2140
2.3.1.2
For applications where a clock is already available
elsewhere, users may directly drive the MCP2140 pro-
vided that this external clock source meets the AC/DC
timing requirements listed in
grams and
external clock circuit should be configured.
FIGURE 2-2:
2.3.2
The device crystal is used to derive the communication
bit clock (BITCLK). There are 16 BITCLKs for each bit
time. The BITCLKs are used for the generation of the
start bit and the eight data bits. The stop bit uses the
BITCLK when the data is transmitted (not for
reception).
This clock is a fixed-frequency and has minimal
variation in frequency (specified by the crystal
manufacturer).
DS21790A-page 8
Clock From
external
system
Open
BIT CLOCK
Specifications”.
External Clock
EXTERNAL CLOCK
Figure 2-2
Section 4.3, “Timing Dia-
OSC1
OSC2
MCP2140
shows how an
Preliminary
2003 Microchip Technology Inc.