MOTOROLA MC75174BP, MC75174BDW, MC75172BDWR2, MC75174BDWR2 Datasheet

Order this document by MC75172B/D

MC75172B Quad EIA-485 Line Drivers MC75174B with Three-State Outputs

The Motorola MC75172B/174B Quad Line drivers are differential high
speed drivers designed to comply with the EIA±485 Standard. Features	QUAD EIA±485 LINE DRIVERS
include three±state outputs, thermal shutdown, and output current limiting in
both directions. These devices also comply with EIA±422±A, and CCITT
Recommendations V.11 and X.27.	SEMICONDUCTOR
The MC75172B/174B are optimized for balanced multipoint bus
	TECHNICAL DATA
transmission at rates in excess of 10 MBPS. The outputs feature wide
common mode voltage range, making them suitable for party line
applications in noisy environments. The current limit and thermal shutdown
features protect the devices from line fault conditions. These devices offer
optimum performance when used with the MC75173 and MC75175 line
receivers.		P SUFFIX
Both devices are available in 16±pin plastic DIP and 20±pin wide body
		PLASTIC PACKAGE
surface mount packages.		CASE 648
• Meets EIA±485 Standard for Party Line Operation
• Meets EIA±422±A and CCITT Recommendations V.11 and X.27
• Operating Ambient Temperature: ±40°C to +85°C	DW SUFFIX
• High Impedance Outputs
	PLASTIC PACKAGE
• Common Mode Output Voltage Range: ±7 to 12 V	CASE 751D
• Positive and Negative Current Limiting	(SO±20L)
• Transmission Rates in Excess of 10 MBPS
• Thermal Shutdown at 150°C Junction Temperature, (± 20°C)	ORDERING INFORMATION
• Single 5.0 V Supply		Operating
• Pin Compatible with TI SN75172/4 and NS μA96172/4	Device	Temperature Range	Package
• Interchangeable with MC3487 and AM26LS31 for EIA±422±A	MC75172BDW		SO±20L
Applications	MC75174BDW	TA = ± 40° to +85°C	SO±20L

											MC75174BP				Plastic DIP
							PIN CONNECTIONS
			MC75172B								MC75174B
	1A	1	16	VCC	1A	1	20	VCC	1A	1	16	VCC 1A		1	20	VCC
	1Y	2	15	4A	1Y	2	19	4A	1Y	2	15	4A	1Y	2	19	4A
	1Z	3	14	4Y	NC	3	18	4Y	1Z	3	14	4Y	NC	3	18	4Y
	En	4	13	4Z	1Z	4	17	NC	En	4	13	4Z	1Z	4	17	NC
	2Z	5	12	En	En	5	16	4Z	12			En	En	5	16	4Z
									2Z	5	12
					2Z	6	15	En				34	12			En
		6	11										2Z	6	15
	2Y			3Z					2Y	6	11	3Z
																34
	2A	7	10	3Y	NC	7	14	3Z	2A	7	10	3Y	NC	7	14	3Z
	Gnd	8	9	3A	2Y	8	13	NC	Gnd	8	9	3A	2Y	8	13	NC
			P Package		2A	9	12	3Y			P Package		2A	9	12	3Y
					Gnd 10		11	3A					Gnd 10		11	3A
							DW Package								DW Package

Motorola, Inc. 1996

Rev 1

MC75172B MC75174B

MAXIMUM RATINGS

Rating	Symbol	Value	Unit
Power Supply Voltage	VCC	±0.5, +7.0	Vdc
Input Voltage (Data, Enable)	Vin	+7.0	Vdc
Input Current (Data, Enable)	Iin	±24	mA
Applied Output Voltage, when in 3±State Condition	Vza	±10, +14	Vdc
(VCC = 5.0 V)
Applied Output Voltage, when VCC = 0 V	Vzb	±14
Output Current	IO	Self±Limiting	±
Storage Temperature	Tstg	±65, +150	°C
Devices should not be operated at these limits. The ªRecommended Operating Conditionsº table provides
for actual device operation.

RECOMMENDED OPERATING CONDITIONS

Characteristic	Symbol	Min	Typ	Max	Unit
Power Supply Voltage	VCC	+4.75	+5.0	+5.25	Vdc
Input Voltage (All Inputs)	Vin	0	±	VCC	Vdc
Output Voltage in 3±State Condition, or when VCC = 0 V	Vcm	±7.0	±	+12	Vdc
Output Current (Normal data transmission)	IO	±65	±	+65	mA
Operating Ambient Temperature (see text)	TA				°C
EIA±485		±40	±	+85
EIA±422		0	±	+85

All limits are not necessarily functional concurrently.

ELECTRICAL CHARACTERISTICS (±40°C p TA p 85°C, 4.75 V p VCC p 5.25 V, unless otherwise noted.)

Characteristic	Symbol			Min	Typ	Max	Unit
Output Voltage
Single±Ended Voltage							Vdc
IO = 0	VO			0	±	6.0
High @ IO = ±33 mA	VOH			±	4.0	±
Low @ IO = +33 mA	VOL			±	1.6	±
Differential Voltage
Open Circuit (IO = 0)	VOD1			1.5	3.4	6.0
RL = 54 Ω (Figure 1)	VOD2			1.5	2.3	5.0
Change in Differential*, RL = 54 Ω (Figure 1)	ΔVOD2			±	5.0	200	mVdc
Differential Voltage, RL = 100 Ω (Figure 1)	VOD2A			±	2.2	±	Vdc
Change in Differential*, RL = 100 Ω (Figure 1)	ΔVOD2A			±	5.0	200	mVdc
Differential Voltage, ±7.0 V p Vcm p 12 V (Figure 2)	VOD3			1.5	±	5.0	Vdc
Change in Differential*, ±7.0 V p Vcm p 12 V (Figure 2)	ΔVOD3			±	5.0	200	mVdc
Offset Voltage, RL = 54 Ω (Figure 1)	VOS			±	2.9	±	Vdc
Change in Offset*, RL = 54 Ω (Figure 1)	ΔVOS			±	5.0	200	mVdc
Output Current (Each Output)							μA
Power Off Leakage, VCC = 0, ±7.0 V p VO p 12 V	IO(off)			±50	0	+50
Leakage in 3±State Mode, ±7.0 V p VO p 12 V	IOZ			±50	0	+50
Short Circuit Current to Ground	IOSR			±150	±	+150	mA
Short Circuit Current, ±7.0 V p VO p 12 V	IOS			±250	±	+250

*Vin switched from 0.8 to 2.0 V.

Typical values determined at 25°C ambient and 5.0 V supply.

2	MOTOROLA ANALOG IC DEVICE DATA

MC75172B MC75174B

ELECTRICAL CHARACTERISTICS (±40°C p TAp 85°C, 4.75 V p VCC p 5.25 V, unless otherwise noted.)

Characteristics	Symbol	Min	Typ	Max	Unit
Inputs					Vdc
Low Level Voltage (Pins 4 & 12, MC75174B only)	VIL(A)	0	±	0.7
Low Level Voltage (All Other Pins)	VIL(B)	0	±	0.8
High Level Voltage (All Inputs)	VIH	2.0	±	VCC
Current @ Vin = 2.7 V (All Inputs)	IIH	±	0.2	20	μA
Current @ Vin = 0.5 V (All Inputs)	IIL	±100	±15	±
Clamp Voltage (All Inputs, Iin = ±18 mA)	VIK	±1.5	±	±	Vdc
Thermal Shutdown Junction Temperature	Tjts	±	+150	±	°C
Power Supply Current (Outputs Open, VCC = 5.25 V)	ICC				mA
Outputs Enable		±	60	70
Outputs Disabled		±	30	40

TIMING CHARACTERISTICS (TA = 25°C, VCC = 5.0 V)

Characteristics	Symbol	Min	Typ	Max	Unit
Propagation Delay ± Input to Single±ended Output (Figure 3)					ns
Output Low±to±High	tPLH	±	23	30
Output High±to±Low	tPHL	±	18	30
Propagation Delay ± Input to Differential Output (Figure 4)					ns
Input Low±to±High	tPLH(D)	±	15	25
Input High±to±Low	tPHL(D)	±	17	25
Differential Output Transition Time (Figure 4)	tdr, tdf	±	19	25	ns
Skew Timing					ns
tPLHD ± tPHLD for Each Driver	tSK1	±	0.2	±
Max ± Min tPLHD Within a Package	tSK2	±	1.5	±
Max ± Min tPHLD Within a Package	tSK3	±	1.5	±
Enable Timing					ns
Single±ended Outputs (Figure 5)
Enable to Active High Output	tPZH(E)	±	48	60
Enable to Active Low Output	tPZL(E)	±	20	30
Active High to Disable (using Enable)	tPHZ(E)	±	35	45
Active Low to Disable (using Enable)	tPLZ(E)	±	30	50
Enable to Active High Output (MC75172B only)	tPZH(E)	±	58	70
Enable to Active Low Output (MC75172B only)	tPZL(E)	±	28	35
Active High to Disable (using Enable, MC75172B only)	tPHZ(E)	±	38	50
Active Low to Disable (using Enable, MC75172B only)	tPLZ(E)	±	36	50
Differential Outputs (Figure 6)					ns
Enable to Active Output	tPZD(E)	±	47	±
Enable to Active Output (MC75172B only)	tPZD(E)	±	56	±
Enable to 3±State Output	tPDZ(E)	±	32	±
Enable to 3±State Output (MC75172B only)	tPDZ(E)	±	40	±

MOTOROLA ANALOG IC DEVICE DATA	3

MC75172B MC75174B

		Figure 1. VDD Measurement		Figure 2. Common Mode Test
		VCC		VCC	375
		RL/2
	V		Vin	VOD3	58
		VOD2,A				+
	in		(0.8 or 2.0 V)
	(0.8 or 2.0 V)	RL/2 VOS			375	VCM = 12 to ±7.0 V

Figure 3. Propagation Delay, Single±Ended Outputs

				3.0 V
VCC	2.3 V	Vin	1.5 V	1.5 V	0 V
			tPLH
	27 Ω			tPHL
Y
Vin	Output
Z	15 pF	Output Y	3.0 V	3.0 V
S.G.					VOL
				tPLH	VOH
		Output Z	3.0 V	3.0 V
			tPHL

Figure 4. Propagation Delay, Differential Outputs

VCC						3.0 V
				1.5 V		1.5 V
			Vin
						0 V
Vin		50 pF	V	tPLHD
	54					tPHLD
			OD
				1.5 V		1.5 V
S.G.			VOD	50%	[4.6 V	50%
				± 1.5 V		± 1.5 V
				tdr		tdf

NOTES: 1. S.G. set to: f p 1.0 MHz; duty cycle = 50%; tr, tf, p 5.0 ns.

2.tSK1 = tPLHD ± tPHLD for each driver.

3.tSK2 computed by subtracting the shortest tPLHD from the longest tPLHD of the 4 drivers within a package.

4.tSK3 computed by subtracting the shortest tPHLD from the longest tPHLD of the 4 drivers within a package.

4	MOTOROLA ANALOG IC DEVICE DATA