MCP2140A
FIGURE 4-7:
BITCLK
TXIR
TXIR WAVEFORMS
Start Bit
IR100A
Data bit 7 Data bit 6 Data bit 5 Data bit ...
IR122
IR122
IR122
IR122
IR122
IR122
IR121
0
1
0
0
1
0
TABLE 4-7: TXIR REQUIREMENTS
AC Specifications
Param.
No.
Sym
Characteristic
IR100A
IR121
IR122
Note 1:
TTXIRBIT Transmit Baud Rate
TTXIRPW TXIR pulse width
TTXIRP TXIR bit period (1)
TBITCLK = TTXBIT/16.
Electrical Characteristics:
Standard Operating Conditions (unless otherwise specified):
Operating Temperature: -40°C ≤ TA ≤ +85°C (industrial)
Operating Voltage VDD range is described in Section 4.1 “DC
Characteristicsâ€
Min
Typ
Max Units
Conditions
384
—
384
TOSC BAUD = 9600
12
—
12
TOSC
—
16
—
TBITCLK
DS22050A-page 38
© 2007 Microchip Technology Inc.