MCP2140-I/SSRVB Microchip Technology, MCP2140-I/SSRVB Datasheet - Page 8
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MCP2140-I/SSRVB
Manufacturer Part Number
MCP2140-I/SSRVB
Description
9600 BAUD FIXED SPEED IRDA PROTOCOL HANDLER & BIT ENCODER/DECODER, -40C to +85C, 20-SSOP 208mil, TUBE
Manufacturer
Microchip Technology
Datasheet
1.MCP2140-ISSRVB.pdf
(58 pages)
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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.
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