Texas Instruments UC5180CQTR, UC5180CQ, UC5180CN, UC5180CJ Datasheet

UC5180C

Octal Line Receiver

FEATURES

∙Meets EIA 232E/423A/422A and CCITT V.10,V.11, V.28, X.26, X.27

∙Single +5V Supply--TTL Compatible Outputs

∙Differential Inputs Withstand ± 25V

∙Low Open Circuit Voltage for Improved Failsafe Characteristic

∙Reduced Supply Current--35 mA Max

∙Input Noise Filter

∙Internal Hysteresis

DESCRIPTION

The UC5180C is an octal line receiver designed to meet a wide range of digital communications requirements as outlined in EIA standards EIA232E, EIA423A, EIA422A, and CCITT V.10, V.11, V.28, X.26, and X.27. The UC5180C includes an input noise filter and is intended for applications employing data rates up to 200 KBPS. A failsafe function allows these devices to "fail" to a known state under a wide variety of fault conditions at the inputs.

ABSOLUTE MAXIMUM RATINGS (Note 1)

Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V Output Sink Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Output Short Circuit Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Sec Common Mode Input Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Differential Input Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25V Failsafe Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to VCC PLCC Power Dissipation, TA = 25°C (Note 2). . . . . . . . . . . . . . . . . . . 1000 mW DIP Power Dissipation, TA = 25°C (Note 2) . . . . . . . . . . . . . . . . . . . . 1200 mW Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . . -65°C to +150°C Lead Temperature (Soldering, 10 Seconds) . . . . . . . . . . . . . . . . . . . . . . -300°C

Note 1: All voltages are with respect to ground, pin 14. Currents are positive into, negative out of the specified terminal

Note 2: Consult Packaging Section of Databook for thermal limitations and considerations of package.

CONNECTION DIAGRAMS

DIL-28 (TOP VIEW)

PLCC-28 (TOP VIEW)

1/94

UC5180C

DC ELECTRICAL CHARACTERISTICS:Unless otherwise stated these specifications apply for TA = 0°C to +70°C, V CC = 5V ± 5%, Input Common Mode Range ± 7V, TA =TJ

PARAMETERS	SYMBOL	TEST CONDITIONS			UC5180C		UNITS
					MIN	MAX
DC Input Resistance	RIN	3V £ | VIN | £ 25V			3	7	kW
Failsafe Output Voltage	VOFS	Inputs Open or Shorted	0 £ IOUT £ 8mA, VFAILSAFE = 0V			0.45	V
		Together, or One Input	0 ³ IOUT ³ - 400 mA,		2.7
		Open and One Grounded	VFAILSAFE = VCC
Differential Input High	VTH	VOUT = 2.7V, IOUT = 440 mA		RS = 0 (Note 2)	50	200	mV
Threshold		(See Figure 1)		RS = 500 (Note 2)		400
Differential Input Low	VTL	VOUT = 0.45V, IOUT = 440 mA		RS = 0 (Note 2)	-200	-50	mV
Threshold		(See Figure 1)		RS = 500 (Note 2)	-400
Hysteresis	VH	FS = 0V or VCC (See Figure 1)			50	140	mV
Open Circuit Input Voltage	VICC					75	mV
Input Capacitance	CI					20	pF
High Level Output Voltage	VCH	VID = 1V, IOUT = - 440mA			2.7		V
Low Level Output Voltage	VOL	VID = -1V		IOUT = 4 mA		0.4	V
		(Note 3)		IOUT = 8 mA		0.45
Short Circuit Output	IOS	Note 4			20	100	mA
Current
Supply Current	ICC	4.75V £ VCC £ 5.25V				35	mA
Input Current	IIN	Other Inputs Grounded		VIN = +10V		3.25	mA
				VIN = -10V	-3.25

Note 2: RS is a resistor in series with each input. Note 3: Measured after 100ms warm up (at 0°C) Note 4: Only 1 output may be shorted at one time

and then only for a maximum of 1 sec.

Figure 1. VtL, VtH, VH Definition

AC ELECTRICAL CHARACTERISTICS: VCC = 5V ± 5%, TA = 0°C to + 70°C, Figure 2, T A = TJ.

PARAMETERS	SYMBOL	TEST CONDITIONS	UC5180C		UNITS
			MIN	MAX
Propagation Delay - Low to High	tPLH	CL = 50pF, VIN = ± 500mV		550	ns
Propagation Delay - High to Low	tPHL	CL = 50pF, VIN = ± 500mV		550	ns
Acceptance Input Frequency	fA	Unused Input Grounded, VIN = ± 200mV		0.1	MHz
Rejectable Input Frequency	fR	Unused Input Grounded, VIN = ± 500mV	5.5		MHz

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