MK53761N00 Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

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Fabricante

MK53761N00

REPERTORY DIALER

STMicroelectronics 

MK53761

Table 3 : Special Function Delays.

Each delay shown below represents the time required from after the special function key is depressed until

a new digit can be dialed.

The time is considered ”FIRST” key is all previous inputs have been completed dialed. The time is considered

”AUTO” if in redial, or previous dialing is still in progress.

Function

SOFTS WITCH

First/Auto

FIRST

AUTO

Pulse

0.40

1.10

Tone

ABSOLUTE MAXIMUM RATINGS*

Parameter

DC Supply Voltage

Operating Temperature

Storage Temperature

Maximum Power Dissipation (25 °C)

Maximum Voltage on any Pin

Value

6.5

– 20 to +60

– 55 to + 125

500

(V+) + .3 ; (V–) – .3

* All specifications are for 2.5 Volt operation and full operating temperature range unless otherwise stated.

Unit

V

°C

°C

mW

V

ELECTRICAL CHARACTERISTICS (Tamb = 25°C unless otherwise specified)

DC CHARACTERISTICS

Symbol Parameter

Min. Typ. Max. Unit Notes

V+

TONE

DC Operating Voltage

(tone mode)

2.5

6.0

V

VMR

IS

IMR

VMUTE

IT

IP

Memory Retention Voltage

Standby Current

Memory Retention Current

Mute Output Operating Voltage

Operating Current (tone)

Operating Current (pulse)

Operating Current On-hook Program Mode

Key Operated

No-key Operated

1.5

V

1. 6

0.4

1.0

µA

1

0.15 0.75

µA

5. 6

1.8

V

7

300 600

µA

2

150 250

µA

2

200

µA

1

µA

IML

Mute Output (2.5 Volts)

Sink Current (4.0 Volts)

1.0

mA

3

3.0

mA

IPL

Pulse Output Sink Current

IPC

Pacifier Tone Sink/Source

KRU

Keypad Pullup Resistance

KRD

Keypad Pulldown Resistance

VIL

Keypad Input Level-low

1.0

2.0

mA

3

250 500

µA

4

100

kΩ

500

Ω

0

0.3 V V

+

VIH

Keypad Input Level-high

0.7 V

+

V+

V

VPULSE Operating Voltage (pulse mode)

1.8

6.0

V

Notes : 1. All inputs unloaded. Quiescent mode (oscillator off).

2. All outputs unloaded, single key input.

3. VOUT = 0.4 Volts.

4. Sink current for VOUT = 0.5 Volts, Source Current for VOUT = 2.0 Volts.

5. Memory Retention Voltage is the point where memory is guaranteed but circuit operation is not.

6. Proper memory retention is guaranteed if either the minimum IMR is provided or the minimum VMR. The design does not have to provide

both the minimum current or voltage simultaneously.

7. Minimum voltage where activation of mute output with key entry is ensured.

7/11

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