MCP2140 Microchip Technology, Inc., MCP2140 Datasheet - Page 30

• Manufacturer Part Number: MCP2140
• Description: The MCP2140 Embeds Irda Protocol Handling And Bit Encoding/decoding, And Provides The Lowest Cost, Lowest Power Consumption Solution For Adding Irda Connectivity to Embedded Systems
• Manufacturer: Microchip Technology, Inc.

MCP2140
4.3
FIGURE 4-3:
TABLE 4-3:
DS21790A-page 30
AC Specifications
Param.
No.
Note 1: Data in the Typical (“Typ”) column is at 5V, 25 C unless otherwise stated. These parameters are for design
1A
1B
1C
1
4
OSC1
Timing Diagrams and Specifications
2: All specified values are based on oscillator characterization data under standard operating conditions.
3: A duty cycle of no more than 60% (High time/Low time or Low time/High time) is recommended for external
TosR,
F
F
Sym
T
E
TosF
OSC
OSC
ERR
guidance only and are not tested.
Exceeding these specified limits may result in unstable oscillator operation and/or higher than expected
current consumption. When an external clock input is used, the “max” cycle time limit is “DC” (no clock) for
all devices.
clock inputs.
CLK
EXTERNAL CLOCK TIMING REQUIREMENTS
External CLKIN Period
Oscillator Period
External CLKIN
Frequency
Oscillator Frequency
Error in Frequency
External Clock Error
Clock in (OSC1)
Rise or Fall Time
EXTERNAL CLOCK TIMING
Q4
Characteristic
(2, 3)
(2)
Q1
(2)
1
(2, 3)
Electrical Characteristics:
Standard Operating Conditions (unless otherwise specified):
Operating Temperature: -40 C
Operating Voltage V
90.422
90.422
90.422
7.3728
7.3728
Preliminary
Min
—
—
—
Q2
7.3728
2
Typ
—
—
—
—
—
—
—
(1)
3
DD
Q3
range is described in
90.422
90.422
7.3728
7.3728
± 0.01
± 0.01
Max
3
15
—
4
T
A
Units
MHz
MHz
ns
ns
ns
ns
%
%
Q4
+85 C (industrial)
2003 Microchip Technology Inc.
Device Operation
Low Power mode
(PHACT drive Low)
Section 4.1
4
Conditions
Q1