Integrated Device Technology Inc IDT49FCT3805AD, IDT49FCT3805ADB, IDT49FCT3805AE, IDT49FCT3805AEB, IDT49FCT3805AL Datasheet

FAST CMOS	IDT49FCT3805/A
BUFFER/CLOCK DRIVER

Integrated Device Technology, Inc.

FEATURES:

•0.5 MICRON CMOS Technology

•Guaranteed low skew < 500ps (max.)

•Very low duty cycle distortion < 1.0ns (max.)

•Very low CMOS power levels

•TTL compatible inputs and outputs

•Inputs can be driven from 3.3V or 5V components

•Two independent output banks with 3-state control

•1:5 fanout per bank

•‘Heartbeat’ monitor output

•Available in DIP, SOIC, SSOP, QSOP, Cerpack and LCC packages

•Military product compliant to MIL-STD-883, Class B

•VCC = 3.3V ± 0.3V

DESCRIPTION:

The FCT3805/A is a 3.3 volt, non-inverting clock driver built using advanced dual metal CMOS technology. The device consists of two banks of drivers, each with a 1:5 fanout and its own output enable control. The device has a "heartbeat" monitor for diagnostics and PLL driving. The MON output is identical to all other outputs and complies with the output specifications in this document. The FCT3805/A offers low capacitance inputs with hysteresis.

The FCT3805/A is designed for high speed clock distribution where signal quality and skew are critical. The FCT 3805 also allows single point-to-point transmission line driving in applications such as address distribution, where one signal must be distributed to multiple receivers with low skew and high signal quality.

FUNCTIONAL BLOCK DIAGRAM		PIN CONFIGURATIONS
		VCCA		1		20		VCCB
		OA1		2		19		OB1
OEA		OA2		3		18		OB2
		OA3		4	P20-1	17		OB3
5		GNDA		5	D20-1	16		GNDB
					SO20-2
INA	OA1-OA5	OA4		6	SO20-7	15		OB4
					SO20-8
		OA5		7	&	14		OB5
					E20-1
5
INB	OB1-OB5	GNDQ		8		13		MON
		OEA		9		12		OEB
OEB		INA		10		11		INB
								3102 drw 02

MON

3102 drw 01

INDEX

DIP/SOIC/SSOP/QSOP/CERPACK

TOP VIEW

OA2

OA1

VCCA

VCCB

OB1

	3	2	20 19
OA3	4		1	18	OB2
GNDA	5			17	OB3
OA4	6	L20-2		16	GNDB
OA5	7			15	OB4
GNDQ	8			14	OB5
	9	10	11 12	13

OEA

INA

INB

OEB

MON

LCC

TOP VIEW

3102 drw 03

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

MILITARY AND COMMERCIAL TEMPERATURE RANGES		OCTOBER 1995
©1996 Integrated Device Technology, Inc.	9.5	DSC-3102/4

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IDT49FCT3805/A
FAST CMOS BUFFER/CLOCK DRIVER	MILITARY AND COMMERCIAL TEMPERATURE RANGES

PIN DESCRIPTION				FUNCTION TABLE(1)
Pin Names			Description
OE	OE	3-State Output Enable Inputs (Active LOW)		Inputs		Outputs
A,	B
INA, INB		Clock Inputs		OEA, OEB	INA, INB	OAn, OBn	MON
OAn, OBn		Clock Outputs		L	L	L	L
MON		Monitor Output		L	H	H	H
			3102 tbl 01	H	L	Z	L
				H	H	Z	H
				NOTE:			3102 tbl 02
				1. H = HIGH, L = LOW, Z = High Impedance

ABSOLUTE MAXIMUM RATINGS(1)

Symbol	Rating	Commercial	Military	Unit
VTERM(2)	Terminal Voltage	–0.5 to +4.6	–0.5 to +4.6	V
	with Respect to
	GND
VTERM(3)	Terminal Voltage	–0.5 to +7.0	–0.5 to +7.0	V
	with Respect to
	GND
VTERM(4)	Terminal Voltage	–0.5 to VCC	–0.5 to VCC	V
	with Respect to	+ 0.5	+ 0.5
	GND
TA	Operating	0 to +70	–55 to +125	°C
	Temperature
TBIAS	Temperature	–55 to +125	–65 to +135	°C
	Under Bias
TSTG	Storage	–55 to +125	–65 to +150	°C
	Temperature
IOUT	DC Output	–60 to +60	–60 to +60	mA
	Current
NOTES:			3102 lnk 03

1.Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.

2.Vcc terminals.

3.Input terminals.

4.Output and I/O terminals.

CAPACITANCE (TA = +25°C, f = 1.0MHz)

Symbol	Parameter(1)	Conditions	Typ.	Max.	Unit
CIN	Input	VIN = 0V	3.5	5.0	pF
	Capacitance
COUT	Output	VOUT = 0V	3.5	5.0	pF
	Capacitance

NOTE:	3102 lnk 04

1. This parameter is measured at characterization but not tested.

9.5

2

IDT49FCT3805/A
FAST CMOS BUFFER/CLOCK DRIVER	MILITARY AND COMMERCIAL TEMPERATURE RANGES

DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE

Following Conditions Apply Unless Otherwise Specified:

Commercial: TA = 0°C to +70°C, VCC = 3.3V ± 0.3V; Military: TA = –55°C to +125°C, VCC = 3.3V ± 0.3V

Symbol	Parameter	Test Conditions(1)		Min.	Typ.(2)	Max.	Unit
VIH	Input HIGH Level (Input pins)	Guaranteed Logic HIGH Level		2.0	—	5.5	V
	Input HIGH Level (I/O pins)			2.0	—	VCC+0.5
VIL	Input LOW Level	Guaranteed Logic LOW Level		–0.5	—	0.8	V
	(Input and I/O pins)
II H	Input HIGH Current (Input pins)(6)	VCC = Max.	VI = 5.5V	—	—	±1	μA
	Input HIGH Current (I/O pins)(6)		VI = VCC	—	—	±1
II L	Input LOW Current (Input pins)(6)		VI = GND	—	—	±1
	Input LOW Current (I/O pins)(6)		VI = GND	—	—	±1
IOZH	High Impedance Output Current	VCC = Max.	VO = VCC	—	—	±1	μA
IOZL	(3-State Output pins)(6)		VO = GND	—	—	±1
VIK	Clamp Diode Voltage	VCC = Min., IIN = –18mA		—	–0.7	–1.2	V
IODH	Output HIGH Current	VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V(3)		–36	–60	–110	mA
IODL	Output LOW Current	VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V(3)		50	90	200	mA
VOH	Output HIGH Voltage	VCC = Min.	IOH = –0.1mA	VCC–0.2	—	—	V
		VIN = VIH or VIL	IOH = –6mA MIL.	2.4(5)	3.0	—
			IOH = –8mA COM'L.
VOL	Output LOW Voltage	VCC = Min.	IOL = 0.1mA	—	—	0.2	V
		VIN = VIH or VIL	IOL = 16mA	—	0.2	0.4
			IOL = 24mA	—	0.3	0.50
IOFF	Input Power Off Leakage(6)	VCC = 0V, VIN ≤ 4.5V		—	—	±1	μA
IOS	Short Circuit Current(4)	VCC = Max., VO = GND(3)		–60	–135	–240	mA
VH	Input Hysteresis		—	—	150	—	mV
ICCL	Quiescent Power Supply Current	VCC = Max.,	COM'L.	—	0.1	10	μA
ICCH		VIN = GND or VCC	MIL.	—	0.1	100
ICCZ
NOTES:							3102 lnk 05

1.For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.

2.Typical values are at Vcc = 3.3V, +25°C ambient.

3.Not more than one output should be tested at one time. Duration of the test should not exceed one second.

4.This parameter is guaranteed but not tested.

5.VOH = VCC -0.6V at rated current.

6.The test limit for this parameter is ±5μA at TA = –55°C.

9.5

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