ML145583 datasheet(6/7 Pages) LANSDALE

Il numero della parte	ML145583

Spiegazioni elettronici	3.3 Volt Only Driver/Receiver with an Integrated Standby Mode RS 232/EIA-232-E and CCITT V.28

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Produttore elettronici	LANSDALE [LANSDALE Semiconductor Inc.]

Homepage	http://www.lansdale.com

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ML145583

LANSDALE Semiconductor, Inc.

ESD PROTECTION

ESD protection on IC devices that have their pins accessible

to the outside world is essential. High static voltages applied to

the pins when someone touches them either directly or indi-

rectly can cause damage to gate oxides and transistor junctions

by coupling a portion of the energy from the I/O pin to the

power supply buses of the IC. This coupling will usually occur

through the internal ESD protection diodes which are designed

to do just that. The key to protecting the IC is to shunt as much

of the energy to ground as possible before it enters the IC.

Figure 1 shows a technique which will clamp the ESD voltage

at approximately ± 15 V using the MMBZ15VDLT1. Any

residual voltage which appears on the supply pins is shunted to

ground through the capacitors C1and C2.

VSS

STB

Rx1

Rx2

Rx3

Tx1

Rx4

Tx2

Rx5

Tx3

C5–

RIMON

C5+

GND

MMBZ15VDLT1 x 8

C1–

VDD

C2–

C1+

C2+

VCC

DO4

DI2

DO3

DI1

DO1

DO2

DO5

DI3

0.1

µF

C2

C1

0.1

µF

Figure 1. ESD Protection Scheme

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Produttore elettronici	Il numero della parte	Scheda tecnica	Spiegazioni elettronici
LANSDALE Semiconductor ...	ML145583	142Kb / 7P	3.3 Volt Only Driver/Receiver
	ML145583-7P	142Kb / 7P	3.3 Volt Only Driver/Receiver
	ML145583	142Kb / 7P	3.3 Volt Only Driver/Receiver

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Produttore elettronici	Il numero della parte	Scheda tecnica	Spiegazioni elettronici
LANSDALE Semiconductor ...	ML145406	759Kb / 10P	Driver/Receiver EIA 232-E and CCITT V.28 (Formerly RS-232-D)
	ML145407	679Kb / 8P	5 Volt Only Driver/Receiver RS232 EIA-232-E and CCITT V.28
	ML145403	916Kb / 8P	Drivers/Receivers RS 232/EIA-232-E and CCITT V.28
	ML145406	208Kb / 10P	Driver/Receiver EIA 232?밇 and CCITT V.28
Motorola, Inc	MC14529B	253Kb / 8P	3.3 VOLT ONLY DRIVER / RECEIVER WITH AN INTEGRATED STANDBY MODE
Motorola, Inc	MC145583	191Kb / 8P	3.3 VOLT ONLY DRIVER / RECEIVER WITH AN INTEGRATED STANDBY MODE
LANSDALE Semiconductor ...	ML145403	259Kb / 8P	Drivers/Receivers RS 232/EIA??32?밇 and CCITT V.28
NXP Semiconductors	MC145406	90Kb / 5P	EIA-232-D/V.28 driver/receiver August 31, 1994
Motorola, Inc	MC145705	232Kb / 12P	5 VOLT ONLY DRIVER/RECEIVER WITH AN INTERGRATED STANDBY MODE
Texas Instruments	SN75LV4735	181Kb / 11P	[Old version datasheet] 3.3-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER

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