MT88E46 Ver la hoja de datos (PDF) - Zarlink Semiconductor Inc

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Fabricante

MT88E46

Bellcore Compliant Calling Number Identification Circuit

Zarlink Semiconductor Inc 

Data Sheet

Resonance Mode:

Load Capacitance:

Maximum Series Resistance:

Maximum Drive Level:

e.g. CTS MP036S

Parallel

18pF

150 Ω

2 mW

Alternatively an external clock source can be used. In

which case the OSC1 pin should be driven directly from a

CMOS buffer and the OSC2 pin left open.

For 5V±10% applications any number of MT88E46’s can

be connected as shown in Figure 6 so that only one crystal

is required.

MT88E46

OSC1 OSC2

MT88E46

OSC1 OSC2

MT88E46

OSC1 OSC2

3.579545 MHz

(For 5V±10% applications only)

to the

next MT88E46

Figure 6 - Common Crystal Connection

MT88E46

Interrupt Source 1

INT1

(Open Drain)

Interrupt Source 2

INT2

(CMOS)

Vdd

R1

D1

R1 can be opened and D1

shorted if the

microcontroller does not

read the INT1 pin.

Vdd

R2

MT88E46

DR/DET

(CMOS)

Microcontroller

INT (input)

Input Port Bit

Figure 7 - Application Circuit: Multiple Interrupt Sources

11

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