EM91203 datasheet(8/19 Pages) EMC

Part #	EM91203

Description	TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE

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Manufacturer	EMC [ELAN Microelectronics Corp]

Direct Link	http://www.emc.com.tw

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EM91203 SERIES

TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE

8

* This specification are subject to be changed without notice.

10.1.1997

ABSOLUTE MAXIMUM RATINGS(Ambient temperature is 25

°C, all voltages referenced to V

SS)

Items

Sym.

Rating

Unit

Power supply voltage

V

DD

6.0 Vdc

V

Input voltage range

V

IN

V

SS

-0.3V ~ V

DD

+0.3V

V

Operating temperature

T

OPR

0 ~ +50

°C

Storage temperature

T

STO

-55 ~ 125

°C

Power consumption

P

D

500

mW

ELECTRICAL CHARACTERISTICS

(Ambient temperature is 25

°C, V

DD=2.5V unless otherwise noted, all voltages referenced to VSS, Fosc=3.579545 MHz)

Parameter

Sym.

Min.

Typ.

Max. Unit

Condition

Operating voltage

Pulse

2.0

-

5.5

V

unload

Tone

2.0

-

5.5

Operating current(HKS=0)

Pulse

Idd

-

0.15

0.3

unload

Tone

-

0.3

0.5

mA

Pulse

-

0.15

0.3

with pull up/down

Tone

-

0.3

0.5

resistor * 8

Memory retention current

Imrt

-

0.001

0.1

uA

HKS=1,Vdd=1V

Standby current

HKS=1

Istby

-

0.001

0.1

unload

HKS=0

-

1

10

uA

HKS=1

-0.001

0.1

with pull up/down

HKS=0

-

10

30

resistor * 8

HKS, HFI

ViH

0.8Vdd

-

Vdd

V

pins: input voltage

ViL

Vss

-

0.2Vdd

HFO & PM pins source current

IoH

0.2

-

mA

Vo = 2.0 V

PO, HFO, XMUTE,

IoL

-0.2

-

mA

Vo = 0.5 V

& PM, SDO pins: sink current

PO, XMUTE and SDO

IoH

-

±0.001 uA

Vo = Vdd

pins: leakage current

HFI pin input resistance

Rhfi

-

200

-

K

Ω Vhfi = Vss

Keyboard scanning pins

IoH

2

10

50

uA

Vksn=Vss

output current (except COL4/KT)

IoL

200

400

800

Vksn=Vdd

COL4/KT source current

IoH

0.2

-

mA

Vo=2.0V

sink current

IoL

0.2

-

Vo=0.5V

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