W91F820N datasheet(9/20 Pages) WINBOND

Part #	W91F820N

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

Publication Release Date: January 1999

- 9 -

Revision A1

DC CHARACTERISTICS

(VDD

−VSS = 2.5V, Fosc. = 3.58 MHz, TA = 25° C, all outputs unloaded)

PARAMETER

SYM.

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Operating Voltage

VDD

-

2.4

-

5.5

V

Operating Current

IOP

Tone

-

0.4

0.6

mA

Pulse

-

0.2

0.4

mA

Standby Current

ISB

HKS = 0, No load &

No key entry

-

15

µA

Memory Retention Current

IMR

HKS = 1, VDD = 1.0V

-

1

µA

Tone Output Voltage

VTO

Row group, RL = 5 K

Ω

130

150

170

mVrms

Pre-emphasis

Col/Row, VDD = 2.0

−5.5V

1

2

3

dB

DTMF Distortion

THD

RL = 5 K

Ω, VDD = 2.0−

5.5V

-

-30

-23

dB

DTMF Output DC Level

VTDC

RL = 5 K

Ω, VDD = 2.0−

5.5V

1.0

-

3.0

V

DTMF Output Sink Current

ITL

VTO = 0.5V

0.2

-

mA

DP

Output Sink Current

IPL

VPO = 0.5V

0.5

-

mA

T/P MUTE Output Sink

Current

IML

VMO = 0.5V

0.5

-

mA

KT Drive/Sink Current

IKTH

VKTH = 2.0V

0.5

-

mA

IKTL

VKTL = 0.5V

0.5

-

mA

HFO Drive/Sink Current

IHFH

VHFH = 2.0V

0.5

-

mA

IHFL

VHFL = 0.5V

0.5

-

mA

H/P MUTE

IHPH

VHPH = 2.0V

0.5

-

mA

Drive/Sink Current

IHPL

VHPL = 0.5V

0.5

-

mA

Keypad Input Drive Current

IKD

VI = 0V

4

-

µA

HKS Pull High Resister

RHKS

300

500

-

K

Ω

Keypad Input Sink Current

IKS

VI = 2.5V

200

400

-

µA

Keypad Resistance

-

5.0

K

Ω

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