Integrated Device Technology Inc IDT74AUCR16245APA, IDT74AUCR16245APF Datasheet
INDUSTRIAL TEMPERATURE RANGE
IDT74LVC16245A
3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
1
OCTOBER 1999INDUSTRIAL TEMPERATURE RANGE
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
© 1999 Integrated Device Technology, Inc. DSC-4736/1
FEA TURES:
• Typical tSK(o) (Output Skew) < 250ps
• ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
•VCC = 3.3V ± 0.3V, Normal Range
•VCC = 2.7V to 3.6V, Extended Range
• CMOS power levels (0.4
µµ
µµ
µ W typ. static)
• All inputs, outputs, and I/O are 5V tolerant
• Supports hot insertion
• Available in SSOP, TSSOP, and TVSOP packages
FUNCTIONAL BLOCK DIAGRAM
APPLICA TIONS:
• 5V and 3.3V mixed voltage systems
• Data communication and telecommunication systems
DRIVE FEA TURES:
• High Output Drivers: ±24mA
• Reduced system switching noise
3.3V CMOS 16-BIT
BUS TRANSCEIVER
WITH 3-STATE OUTPUTS,
5 VOLT TOLERANT I/O
IDT74LVC16245A
DESCRIPTION:
This 16-bit bus transceiver is built using advanced dual metal CMOS
technology. This high-speed, low power transceiver is ideal for asynchronous communication between two busses (A and B). The Direction and
Output Enable controls are designed to operate this device as either two
independent 8-bit transceivers or one 16-bit transceiver. The direction
control pin (DIR) controls the direction of data flow. The output enable pin
(OE) overrides the direction control and disables both ports. All inputs are
designed with hysteresis for improved noise margin.
All pins can be driven from either 3.3V or 5V devices. This feature allows
the use of this device as a translator in a mixed 3.3V/5V supply system.
The LVC16245A has been designed with a ±24mA output driver. This
driver is capable of driving a moderate to heavy load while maintaining
speed performance.
1DIR
1A1
1
A2
1
A3
1
A4
1
A5
1
A6
1
A7
1
A8
1
B8
1
B7
1
B6
1
B5
1
B4
1
B3
1
B2
1
B1
1
OE
2DIR
2A1
2
A2
2
A3
2
A4
2
A5
2
A6
2
A7
2
A8
2
B8
2
B7
2
B6
2
B5
2
B4
2
B3
2
B2
2
B1
2
OE
1
47
46
44
43
41
40
38
37
48
2
3
5
6
8
9
11
12
24
36
35
33
32
30
29
27
26
25
13
14
16
17
19
20
22
23
INDUSTRIAL TEMPERATURE RANGE
2
IDT74LVC16245A
3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
SSOP/ TSSOP/ TVSOP
TOP VIEW
PIN CONFIGURATION
NOTES:
1. H = HIGH Voltage Level
X = Don’t Care
L = LOW Voltage Level
Z = High-Impedance
Inputs
xOE xDIR Outputs
L L Bus B Data to Bus A
L H Bus A Data to Bus B
HX Z
FUNCTION T ABLE (EACH 8-BIT SECTION)
(1)
Pin Names Description
xOE Output Enable Inputs (Active LOW)
xDIR Direction Control Input
xAx Side A Inputs or 3-State Outputs
xBx Side B Inputs or 3-State Outputs
PIN DESCRIPTION
NOTE:
1. As applicable to the device type.
Symbol Parameter
(1)
Conditions Typ. Max. Unit
CIN Input Capacitance VIN = 0V 4.5 6 pF
COUT Output Capacitance VOUT = 0V 6.5 8 pF
C
I/O I/O Port Capacitance VIN = 0V 6.5 8 pF
CAPACITANCE (TA = +25°C, F = 1.0MHz)
Symbol Description Max Unit
VTERM
(2)
Terminal Voltage with Respect to GND –0.5 to +6.5 V
VTERM
(3)
Terminal Voltage with Respect to GND –0.5 to +6.5 V
TSTG Storage Temperature –65 to +150 °C
IOUT DC Output Current –50 to +50 mA
I
IK Continuous Clamp Current, –50 mA
IOK VI < 0 or VO < 0
I
CC Continuous Current through each ±100 mA
ISS VCC or GND
ABSOLUTE MAXIMUM RATINGS
(1)
NOTES:
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. All terminals except VCC.
1DIR
1B1
GND
V
CC
GND
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
40
41
42
43
44
45
46
47
481
1B2
1
B3
1
B4
1
B5
1
B6
1
B7
1
B8
2
B1
2
B2
GND
2B3
2
B4
2
B6
2
B5
VCC
GND
2B8
2
B7
2
DIR
1OE
1A1
GND
V
CC
GND
1A2
1
A3
1
A4
1
A5
1
A6
1
A7
1
A8
2
A1
2
A2
GND
2A3
2
A4
2
A6
2
A5
VCC
GND
2A8
2
A7
2
OE
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