W91F822N datasheet(4/20 Pages) WINBOND

Part #	W91F822N

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

Download	20 Pages

Scroll/Zoom	100%

Manufacturer	WINBOND [Winbond]

Direct Link	http://www.winbond.com

Logo

4 / 20 page

Preliminary W91F820N SERIES

- 4 -

Pin Description, continued

SYM.

20-PIN 22-PIN

I/O

FUNCTION

H/P MUTE

6

I

The H/P MUTE is a conventional inverter output. During pulse

dialing, flash break or hold period, this output is active high;

otherwise, it remains in low state.

DP

12

14

O

N-channel open drain dialing pulse output.

Flash key will cause DP to be active in either tone mode or pulse

mode.

The timing diagram for pulse mode is shown in Figure 1(a, b).

DTMF

14

15

O

During pulse dialing, this pin remains in a low state regardless of

the keypad input. In tone mode, it will output a dual or single

tone.

A detailed timing diagram for tone mode is shown in Figure 2(a,

b).

R1

R2

R3

R4

C1

C2

C3

Specified

697

770

852

941

1209

1336

1477

699

766

848

948

1216

1332

1472

Actual

+0.28

-0.52

-0.47

+0.74

+0.57

-0.30

-0.34

Error %

OUTPUT FREQUENCY

VDD, VSS

15, 7

17, 7

I

Power input pins for the dialer chip. VDD is the power and VSS is

the ground.

HFI, HFO

-

11, 12

I, O Handfree control pins.

A low pulse on the HFI input pin toggles the handfree control

state. The status of the handfree control state is listed in the

following table:

HOOK SW.

-

On Hook

Off Hook

On Hook

Off Hook

CURRENT STATE

NEXT STATE

HFO

Low

High

-

Low

High

INPUT

HFI

Off Hook

On Hook

HFO

High

Low

High

DIALING

Yes

No

Yes

No

Yes

The HFI pin is pulled to VDD by an internal resistor.

A detailed timing diagram is shown in Figure 3.

Similar Part No. - W91F822N

Manufacturer	Part #	Datasheet	Description
Winbond	W91F810ALN	221Kb / 26P	23-FLASH MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS
	W91F810AN	221Kb / 26P	23-FLASH MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS
	W91F810LN	221Kb / 26P	23-FLASH MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS
	W91F810N	221Kb / 26P	23-FLASH MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS
	W91F811ALN	221Kb / 26P	23-FLASH MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS

More results

Similar Description - W91F822N

Manufacturer	Part #	Datasheet	Description
Winbond	W91820N	260Kb / 22P	13-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS
	W91F810N	221Kb / 26P	23-FLASH MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS
	W91810N	238Kb / 26P	23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS
	W91590	226Kb / 20P	24-MEMORY TONE/PULSE SWITCHABLE DIALER WITH HANDFREE, HOLD AND LOCK FUNCTIONS
Integral Corp.	IL91350A	622Kb / 12P	13 Memory Tone/Pulse Dialer with Handfree and Hold Function
Winbond	W91350N	199Kb / 16P	13-MEMORY TONE/PULSE DIALER WITH HANDFREE AND HOLD FUNCTION
KODENSHI_AUK CORP.	KK91350A	636Kb / 12P	13 Memory Tone/Pulse Dialer with Handfree and Hold Function
Winbond	W91580	216Kb / 19P	24-MEMORY TONE/PULSE SWITCHABLE DIALER WITH HANDFREE AND HOLD FUNCTIONS
	W91320N	217Kb / 19P	TONE/PULSE DIALER WITH HANDFREE LOCK AND HOLD FUNCTION
	W91560N	220Kb / 18P	3-MEMORY TONE/PULSE DIALER WITH SAVE, KEYTONE, LOCK AND HANDFREE FUNCTIONS

More results

W91F822N Datasheet(PDF) 4 Page - Winbond

W91F822N Datasheet(HTML) 4 Page - Winbond

Similar Part No. - W91F822N

Similar Description - W91F822N

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Datasheet Download

Link URL