Datasheet IDT74AUC16245BVI, IDT74AUC16245PAI, IDT74AUC16245PFI Datasheet (Integrated Device Technology Inc)

IDT74AUC16245

1.8V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS

INDUSTRIAL TEMPERATURE RANGE

1.8V CMOS 16-BIT BUS
TRANSCEIVER WITH
3-STATE OUTPUTS

FEA TURES:

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

• 1.8V Optimized

• 0.8V to 2.7V Operating Range

• Inputs/outputs tolerant up to 3.6V

• Output drivers: ±9mA @ VDD = 2.3V

• Supports hot insertion

• Available in TSSOP, TVSOP, and VFBGA packages

APPLICA TIONS:

• High performance, low voltage communications systems

• High performance, low voltage computing systems

IDT74AUC16245

ADVANCE

INFORMATION

DESCRIPTION:

This 16-bit bus transceiver is built using advanced CMOS technology. The
AUC16245 is designed specifically for asynchronous communications between
data buses. The control function implementation minimizes external timing
requirements.

This device can be used as one 16-bit transceiver or two 8-bit transceivers.
It allows data transmission from A bus to B bus or from B bus to A bus, depending
on the logic level at the direction-control (DIR) input. The output-enable (OE)
input can be used to disable the device so that the buses are effectively isolated.

This device is fully specified for partial power-down applications using IOFF.
The IOFF circuitry disables the outputs, preventing damaging current backflow
through the device when it is powered down.

The AUC16245 is designed with a ±9mA output driver. This driver is capable
of driving a moderate load while maintaining speed performance.

To ensure the high-impedance state during power up or power down, OE
should be tied to VDD through a pull-up resistor; the minimum value of the resistor
is determined by the current-sinking capability of the driver.

FUNCTIONAL BLOCK DIAGRAM

1

1DIR

47

1A1

TO SEVEN OTHER CHANNELS

24

2DIR

48

1OE

36

2A1

2

B1

1

TO SEVEN OTHER CHANNELS

25

2OE

13

2

B1

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

INDUSTRIAL TEMPERATURE RANGE

1

© 2002 Integrated Device Technology, Inc. DSC-5954/16

SEPTEMBER 2002

IDT74AUC16245

1.8V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS

PINOUT CONFIGURATION

INDUSTRIAL TEMPERATURE RANGE

1OE

6

NC

5

NC

4

NC

3

NC

2

1DIR

1

A

NOTE:

NC = No Internal Connection

1A2

1A1

GND

GND

1B1

1B2

B

1A4

1A3

V

DD

VDD

1B3

1B4

C

1A6

1A5

GND

GND

1B5

1B6

D

1A8

1A7

1B7

1B8

E

VFBGA

2A1

2A2

2B2

2B1

F

2A3

2A4

GND

GND

2B4

2B3

G

2A5

2A6

V

DD

VDD

2B6

2B5

H

2A7

2A8

GND

GND

2B8

2B7

J

2OE

NC

NC

NC

NC

2DIR

K

56 BALL VFBGA P ACKAGE LA YOUT

A B C D E F G H J K

6

5

4

3

2

1

TOP VIEW

2

IDT74AUC16245

1.8V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS

PIN CONFIGURATION

1DIR

1B1

B2

1

GND

1B3

B4

1

VDD

B5

1

1

B6

GND

1B7

1

B8
B1

2

1

2
3
4
5
6
7
8
9

10
11
12
13

48
47
46
45
44
43
42

41
40
39
38
37
36

1OE
1A1

1

A2

GND

1A3

A4

1

VDD

A5

1
1A6

GND

1A7

1

A8
A1

2

INDUSTRIAL TEMPERATURE RANGE

(1)(1)

(1)

ABSOLUTE MAXIMUM RA TINGS

(1)(1)

Symbol Description Max Unit

V

TERM Terminal Voltage with Respect to GND –0.5 to +3.6 V

(all input and VDD terminals)

V

TERM Terminal Voltage with Respect to GND –0.5 to +3.6 V

(any I/O or Output terminals in high­impedance or power-off state)

V

TERM Terminal Voltage with Respect to GND –0.5 to +3.6 V

(any I/O or Output terminals in high or

low state)
TSTG Storage Temperature –65 to +150 °C
IOUT Continuous DC Output Current ±20 mA
I

IK Continuous Clamp Current VI > VDD +50 mA

VI < 0 –50
IOK Continuous Clamp Current, VO < 0 –50 mA
I

DD Continuous Current through ±100 mA

I

SS each VDD or GND

NOTE:

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.

B2

2

GND

2B3

B4

2

VDD

B5

2
2B6

GND

2B7

B8

2

DIR

2

14
15
16

17
18

19

20
21
22
23
24

TSSOP/ TVSOP

TOP VIEW

35
34
33
32
31
30
29
28
27
26
25

2

A2

GND

2A3

A4

2

VDD

2A5

A6

2

GND

2A7

2

A8

2

OE

CAPACITANCE (TA = +25°C, f = 1.0MHz, VDD = 2.5V)

Symbol Parameter Conditions Typ. Max. Unit

CIN Input Capacitance
C

I/O I/O Port Capacitance

NOTES:

1. Applies to the Control Inputs.

2. Applies to ports A and B.

(1)

VIN = VDD or GND 3 pF

(2)

VI/O = VDD or GND 7 pF

PIN DESCRIPTION

Pin Names Description

xOE 3-State Output Enable Inputs (Active Low)

xDIR Di rec tio n Co ntrol Inputs

xAx A Side Inputs or 3-State Outputs
xBx B Side Inputs or 3-State Outputs

FUNCTION T ABLE (EACH 8-BIT SECTION)

Inputs

xOE xDIR Outputs

L L Bus B Data to Bus A
L H Bus A Data to Bus B

HXZ

NOTE:

1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don't Care
Z = High-Impedance

(1)

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IDT74AUC16245

1.8V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS

INDUSTRIAL TEMPERATURE RANGE

RECOMMENDED OPERATING CHARACTERISTICS

(1)

Symbol Parameter Test Conditions Min. Max. Unit

VDD Supply Voltage 0.8 2.7 V

VDD = 0.8V VDD —
VDD = 1.1V to 1.3V 0.65 x VDD —

VIH Input HIGH Voltage Level VDD = 1.4V to 1.6V 0.65 x VDD —V

DD = 1.65V to 1.95V 0.65 x VDD —

V
VDD = 2.3V to 2.7V 1.7 —
VDD = 0.8V — 0
VDD = 1.1V to 1.3V — 0.35 x VDD

VIL Input LOW Voltage Level VDD = 1.4V to 1.6V — 0.35 x VDD V

DD = 1.65V to 1.95V — 0.35 x VDD

V
VDD = 2.3V to 2.7V — 0. 7

VI Input Voltage 0 2.7 V

VO Output Voltage Active State 0 VDD V

3-State 0 2.7
VDD = 0.8V — –0.7
VDD = 1.1V — –3

IOH HIGH Level Output Current VDD = 1.4V — –5 mA

VDD = 1.65V — –8
VDD = 2.3V — –9
VDD = 0.8V — 0.7
VDD = 1.1V — 3

IOL LOW Level Output Current VDD = 1.4V — 5 mA

VDD = 1.65V — 8
VDD = 2.3V — 9

∆t/∆v Input Transition Rise or Fall Time — 5 ns/V

TA Operating Free-Air Temperature –4 0 +85 °C

NOTE:

1. All unused inputs of the device must be held at VDD or GND to ensure proper operation.

DC ELECTRICAL CHARACTERISTICS OVER OPERA TING RANGE

(1)

Following Conditions Apply Unless Otherwise Specified:
Operating Conditions: TA = –40°C to +85°C

Symbol Parameter Test Conditions Min. Typ. Max. Unit

IIH Input HIGH or LOW Current Data Inputs VDD = 2.7V, VI = VDD or GND — — ±10 µA
IIL Control Inputs — — ±5

IOFF Input/Output Power Off Leakage VDD = 0V, VIN or VO ≤ 2.7V — — ±10 µA

(2)

IOZH
IOZL

IDDL Quiescent Power Supply Current VDD = 0.8V to 2.7V — — 20 µA
IDDH VIN = GND or VDD
IDDZ

NOTES:

1. All unused inputs of the device must be held at VDD or GND to ensure proper operation.

2. For the I/O ports, the parameters IOZH and IOZL include the input leakage current.

High Impedance Output Current VDD = 2.7V VO = VDD — — ±10 µA

(2)

(3-State Output Pins) VO = GND — — ±10

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IDT74AUC16245

1.8V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS

INDUSTRIAL TEMPERATURE RANGE

OUTPUT DRIVE CHARACTERISTICS

Symbol Parameter Test Conditions

DD = 0.8V - 2.7V IOH = –100µAVDD - 0.1 — —

V
V

DD = 0.8V IOH = –0.7mA — 0.55 —

OH Output HIGH Voltage VDD = 1.1V

V

DD = 1.4V

V
V

DD = 1.65V

VDD = 2.3V

DD = 0.8V - 2.7V IOH = 100µA — — 0.2

V
V

DD = 0.8V IOL = 0.7mA — 0.25 —

OL Output LOW Voltage VDD = 1.1V

V

DD = 1.4V

V
V

DD = 1.65V
DD = 2.3V

V

NOTES:

IL and VIH must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS table for the appropriate VDD range. TA = -40°C to +85°C.

1. V

2. Demonstrates operation for nominal V

3. Demonstrates operation for nominal VDD = 1.5V.

4. Demonstrates operation for nominal VDD = 1.8V.

5. Demonstrates operation for nominal VDD = 2.5V.

DD = 1.2V.

(2)

(3)

(4)

(5)

(2)

(3)

(4)

(5)

(1)

Min. Typ. Max. Unit

IOH = –3mA 0.8 — — V
IOH = –5mA 1 — —
IOH = –8mA 1.2 — —
IOH = –9mA 1.8 — —

IOL = 3mA — — 0.3 V
IOL = 5mA — — 0.4
IOL = 8m A — — 0.45
IOH = 9mA — — 0.6

OPERATING CHARACTERISTICS, TA = 25°C

Symbol Parameter Test Conditions VDD = 0.8V VDD = 1.2V VDD = 1.5V VDD = 1.8V VDD = 2.5V Unit

PD Power Dissipation Outputs Enabled CL = 0pF 22 23 24 25 29 p F

C

Capacitance Outputs Disabled f = 10MHz 1 1 1 1 1

SWITCHING CHARACTERISTICS

VDD = 0.8V VDD = 1.2V±0.1V VDD = 1.5V±0.1V VDD = 1.8V±0.15V VDD = 2.5V±0.2V

Symbol Parameter Typ. Min. Max. Min. Max. Min. Typ. Max. Min. Max. Unit

t

PLH Propagation Delay 5.6 0.5 3.1 0.5 2 0.5 1.5 2 0.4 1.9 ns

tPHL xAx to xBx or xBx to xAx

PZH Output Enable Time 10 0.7 4.6 0.7 3.1 0.7 2.1 3.1 0.7 2.6 n s

t
tPZL xOE to xAx or xBx

t

PHZ Output Disable Time 12.8 0.8 6.8 0.8 5 0.8 3.4 4.8 0.5 2.9 ns

tPLZ xOE to xAx or xBx

NOTE:

1. See TEST CIRCUITS AND WAVEFORMS. TA = -40°C to +85°C.

(1)

5

IDT74AUC16245

1.8V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS

TEST CIRCUITS AND WAVEFORMS

INDUSTRIAL TEMPERATURE RANGE

TEST CONDITIONS

(1)

Symbol VDD = 0.8V VDD = 1.2V±0.1V VDD = 1.5V±0.1V VDD = 1.8V±0.15V VDD = 2.5V±0.2V Unit

VLOAD 2xVDD 2xVDD 2xVDD 2xVDD 2xVDD V

VT VDD/2 VDD/2 VDD/2 VDD/2 VDD/2 V
VLZ 100 100 100 150 150 mV
VHZ 100 100 100 150 150 mV

RL 2 2 2 1 0.5 kΩ

L 15 15 15 30 30 pF

C

VLOAD
Open
GND

SAME PHASE

INPUT TRANSITION

tPLH

OUTPUT

tPLH

OPPOSITE PHASE

INPUT TRANSITION

(1)

Pulse

Generator

VIN

RT

VDD

RL

VOUT

D.U.T.

RL

CL

Propagation Delay

Test Circuits for All Outputs

DEFINITIONS:

CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.

NOTE:

1. Pulse Generator for All Pulses: Rate ≤ 10MHz; Slew Rate ≥ 1V/ns.

SWITCH POSITION

Test Switch

Open Drain

Disable Low V

Enable Low

Disable High GND

Enable High

All Other Tests Open

LOAD

ENABLE

CONTROL

INP UT

tPZL

OUTPUT

NORMALLY

OUTPUT

NORMALLY

NOTE:

1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.

LOW

HIGH

SWITCH

CLOSED

SWITCH

OPEN

VLOAD/2

VT

tPZH

VT
0V

Enable and Disable Times

DISABLE

tPHZ

tPHL

tPHL

tPLZ

VDD
VT
0V

V

OH

VT
VOL

VDD
VT
0V

VDD
VT
0V

VLOAD/2
V

OL + VLZ

VOL
VOH

VOH - VHZ
0V

6

IDT74AUC16245

1.8V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS

ORDERING INFORMATION

INDUSTRIAL TEMPERATURE RANGE

IDT XX

Temp. Range

AUC

X

Bus-Hold

XX

Family

XXX XX

Device Type

Package

X

Grade

I

Industrial Temperature Range
Very Fine Pitch Ball Grid Array

BV

Thin Shrink Small Outline Package

PA

Thin Very Smal l Outlin e P ackage

PF

16-Bit Bus Transceiver with 3-State Outputs

245

16

Double-Density

Blank

No Bus-Hold

74

– 40°C to +85°C

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Santa Clara, CA 95054 fax: [phone] [phone]

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