W91590CL datasheet(13/20 Pages) WINBOND

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W91590 SERIES

Publication Release Date: July 1995

- 13 -

Revision A3

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

2.0

5.5

Operating Current

IOP

Tone

0.3

0.5

Pulse

0.15

0.3

Standby Current

ISB

HKS = 0,

No load & No key entry

µA

Memory Retention Current

IMR

HKS = 1, VDD = 1.0V

0.2

µA

DTMF Output Voltage

VTO

Row group, RL = 5K

130

150

170

VrmS

Pre-emphasis

Col/Row, VDD = 2.0 to 5.5V

DTMF Distortion

THD

RL = 5 K

Ω, VDD = 2.0 to

5.5V

-30

-23

DTMF Output DC Level

VTDC

RL = 5 K

Ω, VDD = 2.0 to

5.5V

1.0

3.0

DTMF Output Sink Current

ITL

VTO = 0.5V

0.2

DP Output Sink Current

IPL

VPO = 0.5V

0.5

T/P MUTE Output Sink

Current

IML

VMO = 0.5V

0.5

HPM MUTE Output Sink

Current

IHPML

VTO = 0.5V

0.5

HPM MUTE Output drive

Current

IHPMH

VTH = 2.0V

0.5

HKS I/P Pull High Resistor

RKH

300

500

Ω

Key Tone Output Current

IKTH

VKTH = 2.0V

0.5

IKTL

VKTH = 0.5V

0.5

HFO Drive/Sink Current

IHFH

VHFH = 2.0V

0.5

IHFL

VHFL = 0.5V

0.5

Keypad Input Drive Current

IKD

VI = 0V

µA

Keypad Input Sink Current

IKS

VI = 2.5V

200

400

µA

Keypad Resistance

5.0

Ω

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