FDC37B80X Ver la hoja de datos (PDF) - SMSC -> Microchip

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FDC37B80X

PC98/99 compliant enhanced super I/O controller with Keyboard / Mouse Wake-Up / 5 Volt Operation

SMSC -> Microchip 

DATA

0

1

0

1

0

0

11

0

1

1

t1

t2

IRTX

n IRTX

MIRTX

nMIRTX

t3 t4

t5 t6

Parameter

t1 Modulated Output Bit Time

t2 Off Bit Time

t3 Modulated Output "On"

t4 Modulated Output "Off"

t5 Modulated Output "On"

t6 Modulated Output "Off"

min

typ max units

µs

µs

0.8

1

1.2

µs

0.8

1

1.2

µs

0.8

1

1.2

µs

0.8

1

1.2

µs

Notes:

1. IRTX: L5, CRF1 Bit 1: 1 = XMIT active low (default)

nIRTX: L5, CRF1 Bit 1: 0 = XMIT active high

MIRTX, nMIRTX are the modulated outputs

FIGURE 22 - AMPLITUDE SHIFT KEYED IR TRANSMIT TIMING

191

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