W91F822AN datasheet(10/20 Pages) WINBOND

Part #	W91F822AN

Description	13-FLASH MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS

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Manufacturer	WINBOND [Winbond]

Direct Link	http://www.winbond.com

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Preliminary W91F820N SERIES

- 10 -

AC CHARACTERISTICS

PARAMETER

SYM.

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Key-in Debounce

TKID

-

20

-

mS

Key Release Debounce

TKRD

-

20

-

mS

On-hook Debounce

TOHD

Lock Mode

-

20

-

mS

Unlock Mode

-

150

-

mS

Pre-digit Pause1

TPDP1

Mode Pin = VDD

-

40

-

mS

10 ppS

Mode Pin = Floating

-

33.3

-

mS

Pre-digit Pause2

TPDP2

Mode Pin = VDD

-

20

-

mS

20 ppS

Mode Pin = Floating

-

16.7

-

mS

Inter Digit Pause

(Auto Dialing)

TIDP

10 ppS

(W91F820N/W91F820AN/

F820LN/F820ALN

-

800

-

mS

20 ppS

(W91F822N/F822AN only)

-

500

-

mS

Interdigit Pause

TIDP

10 ppS

-

800

-

mS

(Auto dialing)

20 ppS

-

500

-

mS

Make/Break Ratio

M:B

Mode Pin = VDD

-

40:60

-

%

Mode Pin = Floating

-

33.3:66.7

-

%

Tone Output Duration

TTD

-

93

-

mS

Intertone Pause

TITP

-

93

-

mS

Flash Break Time

TFB

F1

-

600

-

mS

F2

-

300

-

F3

-

73

-

F4

-

100

-

Flash Pause Time

TFP

-

1.0

-

S

Pause Time

TP

-

3.6

-

S

Key Tone Frequency

FKT

-

1.2

-

KHz

Key Tone Duration

TKTD

-

35

-

mS

One-key Redialing

Pause Time

TRP

-

600

-

mS

One-key Redialing

Break Time

TRB

-

2.2

-

S

First Key-in Delay

TFKD

Lock only

-

300

-

mS

Notes:

1. Crystal parameters suggested for proper operation are Rs < 100

Ω, Lm = 96 mH, Cm = 0.02 pF, Cn = 5 pF, Cl = 18 pF,

Fosc. = 3.579545 MHz

±0.02%.

2. Crystal oscillator accuracy directly affects these times.

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