IDT IDT54FCT16823AT, IDT54FCT16823BT, IDT54FCT16823CT, IDT54FCT16823ET, IDT54FCT162823AT User Manual

FAST CMOS 18-BIT	IDT54/74FCT16823AT/BT/CT/ET
REGISTER	IDT54/74FCT162823AT/BT/CT/ET

Integrated Device Technology, Inc.

FEATURES:

•Common features:

–0.5 MICRON CMOS Technology

–High-speed, low-power CMOS replacement for ABT functions

–Typical tSK(o) (Output Skew) < 250ps

–Low input and output leakage ≤1μA (max.)

–ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0)

–Packages include 25 mil pitch SSOP, 19.6 mil pitch TSSOP, 15.7 mil pitch TVSOP and 25 mil pitch Cerpack

–Extended commercial range of -40°C to +85°C

–VCC = 5V ±10%

•Features for FCT16823AT/BT/CT/ET:

–High drive outputs (-32mA IOH, 64mA IOL)

–Power off disable outputs permit “live insertion”

–Typical VOLP (Output Ground Bounce) < 1.0V at VCC = 5V, TA = 25°C

•Features for FCT162823AT/BT/CT/ET:

–Balanced Output Drivers: ±24mA (commercial),

±16mA (military)

–Reduced system switching noise

–Typical VOLP (Output Ground Bounce) < 0.6V at VCC = 5V,TA = 25°C

DESCRIPTION:

The FCT16823AT/BT/CT/ET and FCT162823AT/BT/CT/ ET 18-bit bus interface registers are built using advanced, dual metal CMOS technology. These high-speed, low-power registers with clock enable (xCLKEN) and clear (xCLR) controls are ideal for parity bus interfacing in high-performance synchronous systems. The control inputs are organized to operate the device as two 9-bit registers or one 18-bit register. Flow-through organization of signal pins simplifies layout. All inputs are designed with hysteresis for improved noise margin.

The FCT16823AT/BT/CT/ET are ideally suited for driving high-capacitance loads and low-impedance backplanes. The output buffers are designed with power off disable capability to allow "live insertion" of boards when used as backplane drivers.

The FCT162823AT/BT/CT/ET have balanced output drive with current limiting resistors. This offers low ground bounce, minimal undershoot, and controlled output fall times – reducing the need for external series terminating resistors. The FCT162823AT/BT/CT/ET are plug-in replacements for the FCT16823AT/BT/CT/ET and ABT16823 for on-board interface applications.

FUNCTIONAL BLOCK DIAGRAM

1OE		2OE
1CLR		2CLR
1CLK		2CLK
1CLKEN		2CLKEN
R		R
C	1Q1	C	2Q1
D		D
1D1		2D1

TO 8 OTHER CHANNELS

2772 drw 01

TO 8 OTHER CHANNELS 2772 drw 02

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

MILITARY AND COMMERCIAL TEMPERATURE RANGES		AUGUST 1996
©1996 Integrated Device Technology, Inc.	5.16	DSC-2772/8
		1

IDT54/74FCT16823AT/BT/CT/ET, 162823AT/BT/CT/ET
FAST CMOS 18-BIT REGISTER	MILITARY AND COMMERCIAL TEMPERATURE RANGES

PIN CONFIGURATIONS

1CLR	1			56		1CLK	1CLR		1	56		1CLK
1OE	2			55		1CLKEN	1OE		2	55		1CLKEN
1Q1	3			54		1D1	1Q1		3	54		1D1
GND	4			53		GND	GND		4	53		GND
1Q2	5			52		1D2	1Q2		5	52		1D2
1Q3	6			51		1D3	1Q3		6	51		1D3
VCC	7			50		VCC	VCC		7	50		VCC
1Q4	8			49		1D4	1Q4		8	49		1D4
1Q5	9			48		1D5	1Q5		9	48		1D5
1Q6	10			47		1D6	1Q6		10	47		1D6
GND	11			46		GND	GND		11	46		GND
1Q7	12			45		1D7	1Q7		12	45		1D7
1Q8	13			44		1D8	1Q8		13	44		1D8
1Q9	14		SO56-1	43		1D9	1Q9		14	E56-1 43		1D9
	15		SO56-2	42			2Q1		15	42		2D1
2Q1			SO56-3			2D1
2Q2	16			41		2D2	2Q2		16	41		2D2
2Q3	17			40		2D3	2Q3		17	40		2D3
GND	18			39		GND	GND		18	39		GND
2Q4	19			38		2D4	2Q4		19	38		2D4
2Q5	20			37		2D5	2Q5		20	37		2D5
2Q6	21			36		2D6	2Q6		21	36		2D6
VCC	22			35		VCC	VCC		22	35		VCC
2Q7	23			34		2D7	2Q7		23	34		2D7
2Q8	24			33		2D8	2Q8		24	33		2D8
GND		25		32		GND	GND		25	32		GND
		26		31
2Q9						2D9	2Q9		26	31		2D9
		27		30
2OE						2CLKEN	2OE		27	30		2CLKEN
2CLR		28		29		2CLK	2CLR		28	29		2CLK

SSOP/		CERPACK
		TOP VIEW
TSSOP/TVSOP
TOP VIEW	2772 drw 03	2772 drw 04

5.16

2

IDT54/74FCT16823AT/BT/CT/ET, 162823AT/BT/CT/ET
FAST CMOS 18-BIT REGISTER	MILITARY AND COMMERCIAL TEMPERATURE RANGES

PIN DESCRIPTION

Pin Names	Description
xDx	Data inputs
xCLK	Clock Inputs
xCLKEN	Clock Enable Inputs (Active LOW)
xCLR	Asynchronous clear Inputs
	(Active LOW)
xOE	Output Enable Inputs (Active LOW)
xQx	3-State Outputs
	2772 tbl 01

ABSOLUTE MAXIMUM RATINGS(1)

Symbol	Description	Max.	Unit
VTERM(2)	Terminal Voltage with Respect to	–0.5 to +7.0	V
	GND
VTERM(3)	Terminal Voltage with Respect to	–0.5 to	V
	GND	VCC +0.5
TSTG	Storage Temperature	–65 to +150	°C
IOUT	DC Output Current	–60 to +120	mA
NOTES:		2772 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.All device terminals except FCT162XXXT Output and I/O terminals.

3.Output and I/O terminals for FCT162XXXT.

FUNCTION TABLE(1)

		Inputs			Outputs
xOE	xCLR	xCLKEN	xCLK	xDx	xQx	Function
H	X	X	X	X	Z	High Z
L	L	X	X	X	L	Clear
L	H	H	X	X	Q(2)	Hold
H	H	L	−	L	Z	Load
H	H	L	−	H	Z
L	H	L	−	L	L
L	H	L	−	H	H
NOTES:						2772 tbl 02

1.H = HIGH Voltage Level L = LOW Voltage Level X = Don’t Care

Z = High Impedance

2.Output level before indicated steady-state input conditions were established.

CAPACITANCE (TA = +25°C, f = 1.0MHz)

Symbol	Parameter(1)	Conditions	Typ.	Max.	Unit
CIN	Input	VIN = 0V	3.5	6.0	pF
	Capacitance
COUT	Output	VOUT = 0V	3.5	8.0	pF
	Capacitance
NOTE:				2772 lnk 04

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

5.16

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