MB89174LPF datasheet(38/50 Pages) FUJITSU

38 / 50 page

MB89170/170A/170L Series

(7) Peripheral Input Timing

(VCC = +5.0 V

±10%, VSS = 0.0 V, TA = –40

°C to +85°C)

* : For information on tinst, see “(4) Instruction Cycle.”

(8) Electrical Characteristics of DTMF Generator

(VSS = 0.0 V, FCH = 3.579545 MHz, TA = –30

°C to + 60°C)

Parameter

Symbol

Pin name

Value

Unit

Remarks

Min.

Max.

Peripheral input “H” pulse width 1

tILIH1

EC, INT0 to INT2,

INT20 to INT27

2 tinst*—

µs

Peripheral input “L” pulse width 1

tIHIL1

2 tinst*—

µs

Parameter

Symbol

Condition

Value

Unit

Remarks

Min.

Typ.

Max.

Operating voltage

range

——

3.0

—

6.0

MB89P173

2.4

—

6.0

MB89173/174A

2.7

—

6.0

MB89P175A

Output load

requirements

VCC = 4.5 V to 6.0 V

—

Ω

Defined when the DTMF

pin is connected to a pull-

down resistor for the

MB89P173.

VCC = 3.0 V to 4.5 V

200

—

Ω

VCC = 2.4 V to 6 V

—

Ω

Defined when the DTMF

pin is connected to a pull-

down resistor for the

MB89173/174A

VCC = 2.7 V to 6 V

MB89P175A

DTMF output offset

voltage (at signal

output)

VMOF

VCC = 5.0 V

—2.4

—

When the DTMF pin is

open for MB89P173.

—0.6

—

When the DTMF pin is

open for the MB89173/

174A/P175A.

DTMF output

amplitude (COL

single tone)

VMFOC

VCC = 5.0 V

450

530

600

mVP-P

When DTMF pin is open.

DTMF output

amplitude (ROW

single tone)

VMFOR

VCC = 5.0 V

350

420

480

mVP-P

Difference between

COL and ROW levels

RMF

—

1.6

2.0

2.4

0.2 VCC

0.8 VCC

tIHIL1

0.8 VCC

INT0 to INT2

INT20 to INT27

0.2 VCC

tILIH1

MB89174LPF Datasheet(PDF) 38 Page - fujitsu semiconductor

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