Philips 74ABTH162245ADGG, 74ABTH162245ADL, 74ABT162245ADL, 74ABT162245ADGG Datasheet

INTEGRATED CIRCUITS

74ABT162245A

74ABTH162245A

16-Bit bus transceiver with 30Ω series termination resistors (3-State)

Product specification

1998 Feb 25

Supersedes data of 1996 Nov 20

IC23 Data Handbook

m n r

Philips Semiconductors	Product specification
16-bit bus transceiver with 30Ω series	74ABT162245A
termination resistors (3-State)	74ABTH162245A

FEATURES

•16-bit bidirectional bus interface

•Power-up 3-State

•Multiple VCC and GND pins minimize switching noise

•3-State buffers

•Output capability: +12mA/±32mA

•Latch-up protection exceeds 500mA per JEDEC Std 17

•ESD protection exceeds 2000 V per MIL STD 883 Method 3015 and 200V per Machine Model

•Same part as 74ABT16245A-1

•74ABTH162245A incorporates bus hold data inputs which eliminate the need for external pull-up resistors to hold unused inputs

•Bus-hold data inputs eliminate the need for external pull-up resistors to hold unused inputs

DESCRIPTION

The 74ABT162245A high-performance BiCMOS device combines low static and dynamic power dissipation with high speed.

The 74ABT162245A device is a 16-bit transceiver featuring non-inverting 3-State bus compatible outputs in both send and receive directions. The control function implementation minimizes external timing requirements. The device features two Output Enable (1OE, 2OE) inputs for easy cascading and two Direction (1DIR, 2DIR) inputs for direction control.

The 74ABT162245A is designed with 30 ohm series resistance in both the upper and lower output structures on both A and B ports. This design reduces line noise in applications such as memory address drivers, clock drivers, and bus receiver/transmitters.

The 74ABT162245A is the same as the 74ABT16245A-1. The part number has been changed to reflect industry standards

Two options are available, 74ABT162245A which does not have the bus hold feature and the 74ABTH162245A which incorporates the bus hold feature.

QUICK REFERENCE DATA

	SYMBOL	PARAMETER	CONDITIONS	TYPICAL	UNIT
			Tamb = 25°C; GND = 0V
	tPLH	Propagation delay	CL = 50pF; VCC = 5V	2.0	ns
	tPHL	nAx to nBx or nBx to nAx		3.0
	CIN	Input capacitance	VI = 0V or VCC	3	pF
	CI/O	I/O pin capacitance	VO = 0V or VCC; 3-State	7	pF
	ICCZ	Quiescent supply current	Outputs disabled; VCC = 5.5V	300	nA
	ICCL		Outputs Low; VCC = 5.5V	10	mA

ORDERING INFORMATION

PACKAGES	TEMPERATURE RANGE	OUTSIDE NORTH AMERICA	NORTH AMERICA	DWG NUMBER
48-Pin Plastic SSOP Type III	±40°C to +85°C	74ABT162245A DL	BT162245A DL	SOT370-1
48-Pin Plastic TSSOP Type II	±40°C to +85°C	74ABT162245A DGG	BT162245A DGG	SOT362-1
48-Pin Plastic SSOP Type III	±40°C to +85°C	74ABTH162245A DL	BH162245A DL	SOT370-1
48-Pin Plastic TSSOP Type II	±40°C to +85°C	74ABTH162245A DGG	BH162245A DGG	SOT362-1

1998 Feb 25

2

853-1772 19018

Philips Semiconductors	Product specification
16-bit bus transceiver with 30Ω series	74ABT162245A
termination resistors (3-State)	74ABTH162245A

PIN CONFIGURATION

1DIR					1			48		1OE
1B0										1A0
				2					47
1B1										1A1
				3					46
GND										GND
				4					45
1B2										1A2
				5					44
1B3										1A3
				6					43
VCC				7					42	VCC
1B4				8					41	1A4
1B5										1A5
				9					40
GND										GND
					10				39
1B6										1A6
					11				38
1B7										1A7
					12				37
2B0										2A0
				13					36
2B1										2A1
				14				35
GND										GND
				15					34
2B2										2A2
				16				33
2B3										2A3
				17				32
VCC				18				31		VCC
2B4				19				30		2A4
2B5										2A5
				20					29
GND					21				28	GND
2B6				22					27	2A6
2B7					23				26	2A7
2DIR				24				25		2OE
									SA00020

PIN DESCRIPTION

	SYMBOL					PIN NUMBER	NAME AND FUNCTION
	1DIR, 2DIR					1, 24	Direction control inputs
							(Active-High)
						47, 46, 44, 43
	1A0 ± 1A7,					41, 40, 38, 37	Data inputs/outputs (A side)
	2A0 ± 2A7					36, 35, 33, 32
						30, 29, 27, 26
						2, 3, 5, 6
	1B0 ± 1B7					8, 9, 11, 12	Data inputs/outputs (B side)
	2B0 ± 2B7					13, 14, 16, 17
						19, 20, 22, 23
						48, 25	Output enables
		1OE,	2OE
		GND				4, 10, 15, 21	Ground (0V)
						28, 34, 39, 45
		VCC				7, 18, 31, 42	Positive supply voltage

LOGIC SYMBOL

1DIR 1			2DIR 24
	48	1OE		25	2OE
1A0 47	2	1B0	2A0 36	13	2B0
1A1 46	3	1B1	2A1 35	14	2B1
1A2 44	5	1B2	2A2 33	16	2B2
1A3 43	6	1B3	2A3 32	17	2B3
1A4 41	8	1B4	2A4 30	19	2B4
1A5 40	9	1B5	2A5 29	20	2B5
1A6 38	11	1B6	2A6 27	22	2B6
1A7 37	12	1B7	2A7 26	23	2B7

							SA00021
FUNCTION TABLE
			INPUTS			INPUTS/OUTPUTS
					nDIR	nAx	nBx
	nOE
		L			L	A = B	Inputs
		L			H	Inputs	B = A
		H			X	Z	Z
H	= HIGH voltage level
L	= LOW voltage level
X	= D0n't care

Z = High impedance ªoffº state

1998 Feb 25

3

Philips Semiconductors	Product specification
16-bit bus transceiver with 30Ω series	74ABT162245A
termination resistors (3-State)	74ABTH162245A

LOGIC SYMBOL (IEEE/IEC)

SCHEMATIC OF EACH OUTPUT

48	G3
1	3 EN1 (BA)
	3 EN2 (AB)
25	G6
24	6 EN4 (BA)
	6 EN5 (AB)
47	1
	2
46
44
43
41
40
38
37
36	4
	5
35
33
32
30
29
27
26

	VCC
	27Ω
2
3	OUTPUT
5
6	27Ω
8
9
11
12	GND
13	SA00042
14
16
17
19
20
22
23
	SA00022

1998 Feb 25

4