SGS Thomson Microelectronics 74VCX1632245TTR, 74VCX1632245TBR, 74VCX1632245TB, 74VCX1632245LBR, 74VCX1632245LB Datasheet

74VCX1632245

16-BIT DUAL SUPPLY BUS TRANSCEIVER LEVEL TRANSLATOR WITH A SIDE SERIES RESISTOR

■HIGH SPEED: tPD = 4.4ns (MAX.) at TA=85°C VCCA = 3.0V VCCB = 2.3V

■LOW POWER DISSIPATION:

ICCA = ICCB = 20μA(MAX.) at TA=85°C

■SYMMETRICAL OUTPUT IMPEDANCE:

|IOHA| = IOLA = 8mA MIN at

VCCA = 3.0V VCCB = 1.65V or 2.3V |IOHA| = IOLA = 18mA MIN at

VCCA = 2.3V VCCB = 1.65V)

■BALANCED PROPAGATION DELAYS: tPLH tPHL

■POWER DOWN PROTECTION ON INPUTS AND OUTPUTS

■26Ω SERIES RESISTOR ON A SIDE OUTPUTS

■OPERATING VOLTAGE RANGE:

VCCA(OPR) = 2.3V to 3.6V (1.2V Data Retention)

VCCB(OPR) = 1.65V to 2.7V (1.2V Data Retention)

■PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 16245

■LATCH-UP PERFORMANCE EXCEEDS 500mA (JESD 17)

■ESD PERFORMANCE:

HBM > 2000V (MIL STD 883 method 3015); MM > 200V

DESCRIPTION

The 74VCX1632245 is a dual supply low voltage CMOS 16-BIT BUS TRANSCEIVER fabricated with sub-micron silicon gate and five-layer metal wiring C2MOS technology. Designed for use as an interface between a 3.3V bus and a 2.5V or 1.8V bus in a mixed 3.3V/1.8V,3.3V/2.5V and 2.5V/ 1.8V supply systems, it achieves high speed operation while maintaining the CMOS low power dissipation.

This IC is intended for two-way asynchronous communication between data buses and the direction of data transmission is determined by nDIR inputs. The enable inputs nG can be used to disable the device so that the buses are effectively isolated. The A-port interfaces with the 3V bus, the B-port with the 2.5V and 1.8V bus.

All inputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. All floating bus terminals during High Z State must be held HIGH or LOW.

September 2003

TSSOP

TFBGA

μTFBGA

ORDER CODES

PACKAGE	TRAY	T & R
TSSOP48		74VCX1632245TTR
TFBGA54	74VCX1632245LB	74VCX1632245LBR
μTFBGA42	74VCX1632245TB	74VCX1632245TBR

LOGIC DIAGRAM

n = 1, 2

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74VCX1632245

INPUT AND OUTPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION

TFBGA54 PIN No	μTFBGA42 PIN No	TSSOP PIN No	SYMBOL			NAME AND FUNCTION
A3	B3	1	1DIR			Directional Controls
J3	F3	24	2DIR			Directional Controls
A6, B5, B6, C5,	A4, A5, A6, B5,	47, 46, 44, 43,	1A1 to 1A8			Data Inputs/Outputs
C6, D5, D6, E5	B6, C5, C6, D5	41, 40, 38, 37
E6, F5, F6, G5,	D6, E5, E6, F5,	36, 35, 33, 32,	2A1 to 2A8			Data Inputs/Outputs
G6, H5, H6, J6	F6,G4, G5, G6	30, 29, 27, 26
A1, B2, B1, C2,	A3, A2, A1, B2,	2, 3, 5, 6,	1B1 to 1B8			Data Inputs/Outputs
C1, D2, D1, E2	B1, C2, C1, D2	8, 9, 11, 12
E1, F2, F1, G2,	D1, E2, E1, F2,	13, 14, 16, 17,	2B1 to 2B8			Data Inputs/Outputs
G1, H2, H1, J1	F1,G3, G2, G1	19, 20, 22, 23
J4	F4	25		G2		Output Enable Inputs
A4	B4	48		G1		Output Enable Inputs
D3, D4, E3, E4,	C3, C4, E3, E4	4, 10, 15, 21,	GND			Ground (0V)
F3, F4		28, 34, 39, 45
A2, A5, B3, B4,	-	-	NC			No Connected
H3, H4, J2, J5
C4, G4	D4	42, 31	VCCA			Positive Supply Voltage
C3, G3	D3	7, 18	VCCB			Positive Supply Voltage

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74VCX1632245

PIN CONNECTION (top view for TSSOP, top through view for BGA)

TSSOP

TFBGA

μTFBGA

TRUTH TABLE

		INPUTS				FUNCTION		OUTPUT
	G			DIR	A BUS		B BUS
	L			L	OUTPUT		INPUT	A = B
	L			H	INPUT		OUTPUT	B = A
	H			X	Z		Z	Z

X=Don’t care; Z=High Impedance

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74VCX1632245

ABSOLUTE MAXIMUM RATINGS

Symbol	Parameter	Value	Unit
VCCA	Supply Voltage	-0.5 to +4.6	V
VCCB	Supply Voltage	-0.5 to +4.6	V
VI	DC Input Voltage	-0.5 to +4.6	V
VI/OA	DC I/O Voltage (Output disabled)	-0.5 to +4.6	V
VI/OB	DC I/O Voltage (Output disabled)	-0.5 to +4.6	V
VI/OA	DC I/O Voltage	-0.5 to VCCA + 0.5	V
VI/OB	DC I/O Voltage	-0.5 to VCCB + 0.5	V
IIK	DC Input Diode Current	− 20	mA
IOK	DC Output Diode Current	− 50	mA
IOA	DC Output Current	± 50	mA
IOB	DC Output Current	± 50	mA
ICCA	DC VCC or Ground Current	± 100	mA
ICCB	DC VCC or Ground Current	± 100	mA
Pd	Power Dissipation	400	mW
Tstg	Storage Temperature	-65 to +150	°C
TL	Lead Temperature (10 sec)	300	°C

Absolute Maximum Ratings are those value beyond which damage to the device may occur. Functional operation under these conditions is not implied

RECOMMENDED OPERATING CONDITIONS

Symbol	Parameter	Value	Unit
VCCA	Supply Voltage	2.3 to 3.6	V
VCCB	Supply Voltage	1.65 to 2.7	V
VI	Input Voltage (Dir, G)	0 to VCCB	V
VI/OA	I/O Voltage	0 to VCCA	V
VI/OB	I/O Voltage	0 to VCCB	V
Top	Operating Temperature	-40 to 85	°C
dt/dv	Input Rise and Fall Time (note 1)	0 to 10	ns/V

1) VIN from 0.8V to 2.0V at VCC =3.0V

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74VCX1632245

DC SPECIFICATION FOR VCCA

			Test Condition								Value
Symbol	Parameter	VCCB	VCCA					TA = 25 °C				-40 to 85 °C		Unit
		(*)	(*)
		(V)	(V)				Min.		Typ.		Max.	Min.	Max.
VIHA	High Level Input	1.8	2.5				1.6					1.6
	Voltage (An)	1.8	3.3				2.0					2.0		V
		2.5	3.3				2.0					2.0
VILA	Low Level Input	1.8	2.5								0.7		0.7
	Voltage (An)	1.8	3.3								0.8		0.8	V
		2.5	3.3								0.8		0.8
VOHA	High Level	2.3	3.0	IO=-100μA			2.8					2.8
	Output Voltage
		2.3	3.0		IO=-8mA		2.4					2.4		V
		1.65	3.0		IO=-8mA		2.4					2.4
		1.65	2.3		IO=-6mA		1.8					1.8
VOLA	Low Level	2.3	3.0	IO=100μA							0.2		0.2
	Output Voltage
		2.3	3.0		IO=8mA						0.55		0.55	V
		1.65	3.0		IO=8mA						0.55		0.55
		1.65	2.3		IO=6mA						0.40		0.40
IIA	Input Leakage	2.7	3.6	VI = VCC or GND							± 0.5		± 5	μA
	Current
IOZA	High Impedance	2.7	3.6	VIA = GND or 3.6V							± 1.0		± 10	μA
	Output Leakage			VIB = VIHB or VILB
	Current
					G = VCCB
IOFF	Power Off	0	0	VIA = GND to 3.6V							± 1.0		± 10	μA
	Leakage Current			VIB = GND to 3.6V
				G, Dir = GND to
						3.6V
ICCtA	Quiescent	1.95	3.6	VIA =VCCA or GND							2		20	μA
	Supply Current	1.95	2.7
				VIB =VCCB or GND
		2.7	3.6
ICCtA	Maximum	2.7	3.6	VIA =VCCA - 0.6V									0.75	mA
	Quiescent	1.95	3.6
	Supply Current /			VIB =VCCB or GND
		1.95	2.7
	Input (An)

(*) VCC range = 3.3±0.3; 2.5±0.2V; 1.8±0.15V

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