* This specification are subject to be changed without notice.

EM91710A/B

TONE/PULSE SWITCHABLE DIALER

8

9.30.1997

°C, All voltage referenced to V

Parameter

Sym.

Ratings

Unit

Power Supply Voltage

V

DD

6.0

V

Input Voltage Range

V

IN

-0.3 ~ V

DD

+ 0.3

V

Operating Temperature

T

OPR

0 ~ 50

˚C

Storage Temperate

T

STO

-55 ~125

˚C

Power Dissipation

P

D

500

mw

°C, All voltage referenced to V

unless otherwise noted

(General purpose specification, fosc. = 3.579545 MHz)

Parameter

Sym.

Conditions

Min.

Typ.

Max.

Unit

Tone

2.5

-

5.5

Pulse

2.0

-

5.5

V

Memory retension

1.0

-

5.5

Tone

-

0.6

2

mA

Pulse

-

0.2

0.5

mA

ON-HOOK, No Keypad entry

-

0.1

1

µA

ON-HOOK, V

-

0.1

0.2

µA

V

SS

-

0.3V

DD

V

0.7V

DD

-V

DD

V

Vxmute = 6.0V

-

-

1

µA

Vxmute = 0.5V

0.2

0.5

-

mA

Vhks = 2.5V

-

-

0.1

µA

*Vn = 0V,

4

10

30

µA

*Vn = 2.5V,

200

400

800

µA

-20

-

ms

Vhfi=0

-

200

-

K

Ω

Vhfo = 2.0V

0.5

-

-

mA

Vhfo = 0.5V

0.5

-

-

mA

OFF-HOOK, Keypad entry

Operating Voltage

V

DD

Operating Current

Iop

Standby Current

Is

Memory retention current

Imr

Control pin input voltage

Vil

Vih

XMUTE pin

leakage current

Imth

sink current

Imtl

HKS pin input current

Ihks

Keyboard scanning pin

drive current

Ikbd

sink current

Ikbs

Key-in debounce time

t

DB

HFI pin input resistor

Rhfi

HFO pin

drive current

Ihdoh

sink current

Ihdol

* Vn : Input voltage of any keyboard scanning pin (Row group, Column group).