IDT74ALVC162245
3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
3.3V CMOS 16-BIT
BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
IDT74ALVC162245
FEATURES:
DESCRIPTION:
DRIVE FEATURES:
This 16-bit bus transceiver is built using advanced dual metal CMOS
technology. The ALVC162245 is designed for asynchronous communication between data buses. The control-function implementation minimizes
external timing requirements.
This device can be used as two 8-bit transceivers or one 16-bit
transceiver. It allows data transmission from the A bus to the B bus or from
the B bus to the 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.
The ALVC162245 has series resistors in the device output structure of
the “A” port which will significantly reduce line noise when used with light
loads. This driver has been designed to drive ±12mA at the designated
threshold levels. The “B” port has a ±24mA driver.
• 0.5 MICRON CMOS Technology
• 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
• VCC = 2.5V ± 0.2V
µ W typ. static)
• CMOS power levels (0.4µ
• Rail-to-Rail output swing for increased noise margin
• Available in SSOP, TSSOP, and TVSOP packages
• Balanced Output Drivers: ±12mA (A port)
• High Output Drivers: ±24mA (B port)
APPLICATIONS:
• 3.3V high speed systems
• 3.3V and lower voltage computing systems
FUNCTIONAL BLOCK DIAGRAM
1 DIR
1
2 DIR
24
48
25
1 OE
1A 1
47
2A 1
2
1A 2
2A2
3
1A 3
2A 3
1A 5
1A 6
1A 7
1A 8
17
2A5
19
2A 6
20
2A 7
22
2A 8
12
2B 6
2B 7
26
23
1B 8
2B 5
27
1B 7
37
2B 4
29
1B 6
38
2B 3
30
1B 5
40
11
2B 2
32
1B 4
41
9
14
16
2A 4
8
2B 1
33
1B 3
43
6
13
35
1B 2
44
5
1A 4
1B1
46
2 OE
36
2B 8
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
APRIL 1999
1
© 1999 Integrated Device Technology, Inc.
DSC-4605/1
IDT74ALVC162245
3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
ABSOLUTE MAXIMUM RATINGS(1)
PIN CONFIGURATION
Symbol
Description
VTERM(2)
Max
Unit
Terminal Voltage with Respect to GND
–0.5 to +4.6
V
VTERM(3)
Terminal Voltage with Respect to GND
–0.5 to VCC+0.5
V
°C
1 DIR
1
48
1 OE
2
TSTG
Storage Temperature
–65 to +150
1B 1
47
1A 1
IOUT
DC Output Current
–50 to +50
mA
1B 2
3
46
1A 2
IIK
±50
mA
GND
4
45
GND
Continuous Clamp Current,
VI < 0 or VI > VCC
IOK
Continuous Clamp Current, VO < 0
–50
mA
1B 3
5
44
1A 3
mA
6
43
1A 4
Continuous Current through each
VCC or GND
±100
1B 4
ICC
ISS
V CC
7
42
V CC
1B 5
8
41
1A 5
1B 6
9
40
1A 6
GND
10
39
GND
1B 7
11
38
1A 7
1B 8
12
37
1A 8
2B 1
13
36
2A 1
2B 2
14
CIN
Input Capacitance
VIN = 0V
5
7
pF
35
2A 2
COUT
Output Capacitance
VOUT = 0V
7
9
pF
GND
15
34
GND
COUT
I/O Port Capacitance
VIN = 0V
7
9
pF
2B 3
16
33
2A 3
2B 4
17
32
2A 4
V CC
18
31
V CC
2B 5
19
30
2A 5
Pin Names
2B 6
20
29
2A 6
xOE
Output Enable Inputs (Active LOW)
DIR
Direction Control Inputs
GND
21
28
GND
2B 7
22
27
2A 7
2B 8
23
26
2A 8
2 DIR
24
25
2 OE
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.
CAPACITANCE (TA = +25°C, F = 1.0MHz)
Parameter(1)
Symbol
Conditions
Typ.
Max.
NOTE:
1. As applicable to the device type.
PIN DESCRIPTION
SSOP/ TSSOP/ TVSOP
TOP VIEW
Description
xAx
Side A Inputs or 3-State Outputs
xBx
Side B Inputs or 3-State Outputs
FUNCTION TABLE (EACH 8-BIT SECTION)(1)
Inputs
xOE
xDIR
L
L
B data to A bus
L
H
A data to B bus
H
X
Isolation
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
2
Outputs
Unit
IDT74ALVC162245
3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Operating Condition: TA = –40°C to +85°C
Symbol
VIH
VIL
Min.
Typ.(1)
Max.
Unit
VCC = 2.3V to 2.7V
1.7
—
—
V
VCC = 2.7V to 3.6V
2
—
—
VCC = 2.3V to 2.7V
—
—
0.7
VCC = 2.7V to 3.6V
—
—
0.8
Parameter
Input HIGH Voltage Level
Input LOW Voltage Level
Test Conditions
V
IIH
Input HIGH Current
VCC = 3.6V
VI = VCC
—
—
±5
µA
IIL
Input LOW Current
VCC = 3.6V
VI = GND
—
—
±5
µA
IOZH
High Impedance Output Current
VCC = 3.6V
VO = VCC
—
—
±10
µA
IOZL
(3-State Output pins)
VO = GND
—
—
±10
VIK
Clamp Diode Voltage
VCC = 2.3V, IIN = –18mA
—
–0.7
–1.2
V
VH
ICCL
ICCH
ICCZ
∆ICC
Input Hysteresis
Quiescent Power Supply Current
VCC = 3.3V
VCC = 3.6V
VIN = GND or VCC
—
—
100
0.1
—
40
mV
µA
Quiescent Power Supply Current
Variation
One input at VCC - 0.6V, other inputs at VCC or GND
—
—
750
µA
NOTE:
1. Typical values are at VCC = 3.3V, +25°C ambient.
OUTPUT DRIVE CHARACTERISTICS (A PORT)
Symbol
VOH
Test Conditions(1)
Parameter
Output HIGH Voltage
VCC = 2.3V to 3.6V
IOH = – 0.1mA
VCC = 2.3V
VOL
Output LOW Voltage
Min.
Max.
Unit
VCC – 0.2
—
V
IOH = – 4mA
1.9
—
IOH = – 6mA
1.7
—
VCC = 2.7V
IOH = – 4mA
2.2
—
IOH = – 8mA
2
—
VCC = 3V
IOH = – 6mA
2.4
—
IOH = – 12mA
2
—
VCC = 2.3V to 3.6V
IOL = 0.1mA
—
0.2
VCC = 2.3V
IOL = 4mA
—
0.4
IOL = 6mA
—
0.55
IOL = 4mA
—
0.4
IOL = 8mA
—
0.6
IOL = 6mA
—
0.55
IOL = 12mA
—
0.8
VCC = 2.7V
VCC = 3V
V
NOTE:
1. VIH and VIL must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table for the appropriate VCC range.
TA = – 40°C to + 85°C.
3
IDT74ALVC162245
3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
OUTPUT DRIVE CHARACTERISTICS (B PORT)
Symbol
VOH
Test Conditions(1)
Parameter
Output HIGH Voltage
Unit
—
V
VCC = 2.3V
IOH = – 6mA
2
—
VCC = 2.3V
IOH = – 12mA
1.7
—
2.2
—
VCC = 3V
Output LOW Voltage
Max.
IOH = – 0.1mA
VCC = 2.7V
VOL
Min.
VCC – 0.2
VCC = 2.3V to 3.6V
2.4
—
VCC = 3V
IOH = – 24mA
2
—
VCC = 2.3V to 3.6V
IOL = 0.1mA
—
0.2
VCC = 2.3V
IOL = 6mA
—
0.4
IOL = 12mA
—
0.7
VCC = 2.7V
IOL = 12mA
—
0.4
VCC = 3V
IOL = 24mA
—
0.55
V
NOTE:
1. VIH and VIL must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table for the appropriate VCC range.
TA = – 40°C to + 85°C.
OPERATING CHARACTERISTICS, TA = 25°C
Symbol
Parameter
CPD
Power Dissipation Capacitance Outputs enabled
CPD
Power Dissipation Capacitance Outputs disabled
VCC = 2.5V ± 0.2V
VCC = 3.3V ± 0.3V
Test Conditions
Typical
Typical
Unit
CL = 0pF, f = 10Mhz
23
30
pF
4
5
4
IDT74ALVC162245
3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
SWITCHING CHARACTERISTICS (A PORT)(1)
VCC = 2.5V ± 0.2V
Symbol
Parameter
tPLH
Propagation Delay
tPHL
xBx to xAx
tPZH
Output Enable Time
tPZL
xOE to xAx
tPHZ
Output Disable Time
tPLZ
xOE to xAx
tSK(o)
Output Skew(2)
VCC = 2.7V
VCC = 3.3V ± 0.3V
Min.
Max.
Min.
Max.
Min.
Max.
Unit
1
4.9
—
4.7
1
4.2
ns
1
6.8
—
6.7
1
5.6
ns
1
6.3
—
5.7
1
5.5
ns
—
—
—
—
—
500
ps
NOTES:
1. See TEST CIRCUITS AND WAVEFORMS. TA = – 40°C to + 85°C.
2. Skew between any two outputs of the same package and switching in the same direction.
SWITCHING CHARACTERISTICS (B PORT)(1)
VCC = 2.5V ± 0.2V
Symbol
Parameter
tPLH
Propagation Delay
tPHL
xAx to xBx
tPZH
Output Enable Time
tPZL
xOE to xBx
tPHZ
Output Disable Time
tPLZ
xOE to xBx
tSK(o)
Output Skew(2)
VCC = 2.7V
VCC = 3.3V ± 0.3V
Min.
Max.
Min.
Max.
Min.
Max.
Unit
1
3.7
—
3.6
1
3
ns
1
5.7
—
5.4
1
4.4
ns
1
5.2
—
4.6
1
4.1
ns
—
—
—
—
—
500
ps
NOTES:
1. See TEST CIRCUITS AND WAVEFORMS. TA = – 40°C to + 85°C.
2. Skew between any two outputs of the same package and switching in the same direction.
5
IDT74ALVC162245
3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
TEST CIRCUITS AND WAVEFORMS
TEST CONDITIONS
VCC(1)= 3.3V±0.3V VCC(1)= 2.7V
Symbol
V IH
VT
0V
SAME PHASE
INPU T TRAN SITION
VCC(2)= 2.5V±0.2V
Unit
VLOAD
6
6
2 x Vcc
V
VIH
2.7
2.7
Vcc
V
VT
1.5
1.5
Vcc / 2
V
VLZ
300
300
150
mV
VHZ
300
300
150
mV
CL
50
50
30
pF
t PLH
t PHL
tPLH
t PHL
V OH
VT
VOL
OU TPUT
V IH
VT
0V
OPPOSITE PHASE
INPU T TRAN SITION
ALV C Link
Propagation Delay
V LOAD
V CC
Open
500 Ω
(1, 2)
V IN
CON TROL
IN PUT
V OUT
Pulse
Generator
DISABLE
ENABLE
GND
D .U .T.
t PZL
OUTPU T
SW ITCH
NOR MALLY
CLO SED
LOW
t PZ H
OU TPUT
SW ITCH
NORMALLY
O PE N
H IGH
500 Ω
RT
CL
ALVC Link
Test Circuit for All Outputs
DEFINITIONS:
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
VLOAD
Disable High
Enable High
GND
All Other Tests
Open
V LOAD/2
V OL + V LZ
V OL
t PHZ
V OH
V OH - V HZ
VT
0V
0V
Enable and Disable Times
SWITCH POSITION
Open Drain
Disable Low
Enable Low
V LOAD/2
VT
NOTE:
1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
DATA
INPUT
Switch
0V
t PLZ
ALV C Link
NOTES:
1. Pulse Generator for All Pulses: Rate ≤ 1.0MHz; tF ≤ 2.5ns; tR ≤ 2.5ns.
2. Pulse Generator for All Pulses: Rate ≤ 1.0MHz; tF ≤ 2ns; tR ≤ 2ns.
Test
V IH
VT
tSU
V IH
VT
0V
V IH
VT
0V
V IH
VT
0V
V IH
VT
0V
tH
TIMING
INPU T
tR EM
ASYNC HRON OU S
CON TROL
SYNC HRON OU S
CON TROL
t SU
tH
ALVC Link
Set-up, Hold, and Release Times
V IH
INPU T
VT
0V
tPHL1
t PLH1
LOW -H IGH -LOW
PULSE
V OH
OUTPUT 1
tSK (x)
VT
V OL
t SK (x)
tW
V OH
HIGH-LOW -HIGH
PULSE
VT
V OL
OUTPUT 2
t PLH2
VT
ALVC Link
Pulse Width
t PHL2
t SK (x) = t PLH2 - tPLH1 or t PH L2 - t PHL1
Output Skew - tSK(X)
VT
ALVC Link
NOTES:
1. For tSK(o) OUTPUT1 and OUTPUT2 are any two outputs.
2. For tSK(b) OUTPUT1 and OUTPUT2 are in the same bank.
6
IDT74ALVC162245
3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
IDT
XX
Tem p. R ange
ALVC
X
XX
XXX
XX
Bus-Hold
Fam ily
Device Type
Package
CORPORATE HEADQUARTERS
2975 Stender Way
Santa Clara, CA 95054
PV
PA
PF
Shrink Sm all Outline Package
Thin Shrink Small Outline Package
Thin Very Small Outline Package
245
16-Bit Bus Transceiver with 3-State Outputs
162
Double-Density with Resistors, ±12m A (A port)
±24m A (B port)
Blank
No Bus-Hold
74
– 40°C to +85°C
for SALES:
800-345-7015 or 408-727-6116
fax: 408-492-8674
www.idt.com
7
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