IDT74LVC16601A
3.3V CMOS 18-BIT UNIVERSAL BUS TRANSCEIVER
INDUSTRIAL TEMPERATURE RANGE
IDT74LVC16601A
3.3V CMOS
18-BIT UNIVERSAL BUS
TRANSCEIVER WITH 3 STATE OUTPUTS,
5 VOLT TOLERANT I/O
FEATURES:
• Typical t
SK(o)
(Output Skew) < 250ps
• ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
• V
CC
= 3.3V ± 0.3V, Normal Range
• V
CC
= 2.7V to 3.6V, Extended Range
• CMOS power levels (0.4μ W typ. static)
μ
• All inputs, outputs, and I/O are 5V tolerant
• Supports hot insertion
• Available in SSOP and TSSOP packages
DESCRIPTION:
The LVC16601A 18-bit universal bus transceiver is built using advanced
dual metal CMOS technology. This 18-bit universal bus transceiver com-
bines D-type latches and D-type flip-flops to allow data flow in transparent,
latched and clocked modes.
Data flow in each direction is controlled by output-enable (OEAB and
OEBA),
latch-enable (LEAB and LEBA), and clock (CLKAB and CLKBA)
inputs. The clock can be controlled by the clock-enable (CLKENAB and
CLKENBA)
inputs.
For A-to-B data flow, the device operates in the transparent mode when
LEAB is high. When LEAB is low, the A data is latched if CLKAB is held at
a high or low logic level. If LEAB is low, the A-bus data is stored in the latch/
flip-flop on the LOW-to-HIGH transition of CLKAB. Output enable
OEAB
is
active low. When
OEAB
is low, the outputs are active. When
OEAB
is high,
the outputs are in the high-impedance state. Data flow for B to A is similar
to that of A to B but uses
OEBA,
LEBA, CLKBA and
CLKENBA.
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 LVC16601A has been designed with a ±24mA output driver. This
driver is capable of driving a moderate to heavy load while maintaining
speed performance.
DRIVE FEATURES:
• High Output Drivers: ±24mA
• Reduced system switching noise
APPLICATIONS:
• 5V and 3.3V mixed voltage systems
• Data communication and telecommunication systems
FUNCTIONAL BLOCK DIAGRAM
OEAB
1
CLKENAB
56
CLKAB
55
LEAB
2
LEBA
28
CLKBA
30
CLKENBA
29
OEBA
27
A
1
3
CE
1D
C1
CLK
CE
1D
C1
CLK
54
B
1
TO 17 OTHER CHANNELS
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
©
2004 Integrated Device Technology, Inc.
JANUARY 2004
DSC-4599/4
IDT74LVC16601A
3.3V CMOS 18-BIT UNIVERSAL BUS TRANSCEIVER
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
OEAB
LEAB
A
1
GND
A
2
A
3
V
CC
A
4
A
5
A
6
GND
A
7
A
8
A
9
A
10
A
11
A
12
GND
A
13
A
14
A
15
V
CC
A
16
A
17
GND
A
18
OEBA
LEBA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
CLKENAB
CLKAB
B
1
GND
B
2
B
3
V
CC
B
4
B
5
B
6
GND
B
7
B
8
B
9
B
10
B
11
B
12
GND
B
13
B
14
B
15
V
CC
B
16
B
17
GND
B
18
CLKBA
CLKENBA
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol
V
TERM
T
STG
I
OUT
I
IK
I
OK
I
CC
I
SS
Description
Terminal Voltage with Respect to GND
Storage Temperature
DC Output Current
Continuous Clamp Current,
V
I
< 0 or V
O
< 0
Continuous Current through each
V
CC
or GND
Max
–0.5 to +6.5
–65 to +150
–50 to +50
–50
±100
Unit
V
°C
mA
mA
mA
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.
PIN DESCRIPTION
Pin Names
OEAB
OEBA
LEAB
LEBA
CLKAB
CLKBA
Ax
Bx
CLKENAB
CLKENBA
Description
A-to-B Output Enable Input (Active LOW)
B-to-A Output Enable Input (Active LOW)
A-to-B Latch Enable Input
B-to-A Latch Enable Input
A-to-B Clock Input
B-to-A Clock Input
A-to-B Data Inputs or B-to-A 3-State Outputs
B-to-A Data Inputs or A-to-B 3-State Outputs
A-to-B Clock Enable Input (Active LOW)
B-to-A Clock Enable Input (Active LOW)
FUNCTION TABLE
(1,2)
Inputs
CLKENAB
X
X
X
H
L
L
L
L
OEAB
H
L
L
L
L
L
L
L
LEAB
X
H
H
L
L
L
L
L
CLKAB
X
X
X
X
↑
↑
L
H
Ax
X
L
H
X
L
H
X
X
Outputs
Bx
Z
L
H
B
(3)
L
H
B
(3)
B
(4)
SSOP/ TSSOP
TOP VIEW
CAPACITANCE
(T
A
= +25°C, F = 1.0MHz)
Symbol
C
IN
C
OUT
C
I/O
Parameter
(1)
Input Capacitance
Output Capacitance
I/O Port Capacitance
Conditions
V
IN
= 0V
V
OUT
= 0V
V
IN
= 0V
Typ.
4.5
6.5
6.5
Max.
6
8
8
Unit
pF
pF
pF
NOTE:
1. As applicable to the device type.
NOTES:
1. H = HIGH Voltage Level
X = Don’t Care
L = LOW Voltage Level
Z = High-Impedance
↑
= LOW-to-HIGH transition
2. A-to-B data flow is shown. B-to-A data flow is similar but uses
OEBA,
LEBA, CLKBA,
and
CLKENBA.
3. Output level before the indicated steady-state input conditions were established.
4. Output level before the indicated steady-state input conditions were established,
provided that CLKAB was HIGH before LEAB went LOW.
2
IDT74LVC16601A
3.3V CMOS 18-BIT UNIVERSAL BUS TRANSCEIVER
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Operating Condition: T
A
= –40°C to +85°C
Symbol
V
IH
Parameter
Input HIGH Voltage Level
V
CC
= 2.3V to 2.7V
V
CC
= 2.7V to 3.6V
V
IL
I
IH
I
IL
I
OZH
I
OZL
I
OFF
V
IK
V
H
I
CCL
I
CCH
I
CCZ
ΔI
CC
High Impedance Output Current
(3-State Output pins)
Input/Output Power Off Leakage
Clamp Diode Voltage
Input Hysteresis
Quiescent Power Supply Current
V
CC
= 0V, V
IN
or V
O
≤
5.5V
V
CC
= 2.3V, I
IN
= –18mA
V
CC
= 3.3V
V
CC
= 3.6V
V
IN
= GND or V
CC
—
—
—
—
—
—
—
–0.7
100
—
—
—
±50
–1.2
—
10
10
500
µA
V
mV
µA
V
CC
= 3.6V
V
O
= 0 to 5.5V
—
—
±10
µA
Input LOW Voltage Level
Input Leakage Current
V
CC
= 2.3V to 2.7V
V
CC
= 2.7V to 3.6V
V
CC
= 3.6V
V
I
= 0 to 5.5V
Test Conditions
Min.
1.7
2
—
—
—
Typ.
(1)
—
—
—
—
—
Max.
—
—
0.7
0.8
±5
µA
V
Unit
V
Quiescent Power Supply Current
Variation
3.6
≤
V
IN
≤
5.5V
(2)
One input at V
CC
- 0.6V, other inputs at V
CC
or GND
µA
NOTES:
1. Typical values are at V
CC
= 3.3V, +25°C ambient.
2. This applies in the disabled state only.
OUTPUT DRIVE CHARACTERISTICS
Symbol
V
OH
Parameter
Output HIGH Voltage
V
CC
= 2.3V
V
CC
= 2.3V
V
CC
= 2.7V
V
CC
= 3V
V
CC
= 3V
V
OL
Output LOW Voltage
V
CC
= 2.3V to 3.6V
V
CC
= 2.3V
V
CC
= 2.7V
V
CC
= 3V
I
OH
= – 24mA
I
OL
= 0.1mA
I
OL
= 6mA
I
OL
= 12mA
I
OL
= 12mA
I
OL
= 24mA
Test Conditions
(1)
V
CC
= 2.3V to 3.6V
I
OH
= – 0.1mA
I
OH
= – 6mA
I
OH
= – 12mA
Min.
V
CC
– 0.2
2
1.7
2.2
2.4
2.2
—
—
—
—
—
Max.
—
—
—
—
—
—
0.2
0.4
0.7
0.4
0.55
V
Unit
V
NOTE:
1. V
IH
and V
IL
must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table for the appropriate V
CC
range.
T
A
= – 40°C to + 85°C.
3
IDT74LVC16601A
3.3V CMOS 18-BIT UNIVERSAL BUS TRANSCEIVER
INDUSTRIAL TEMPERATURE RANGE
OPERATING CHARACTERISTICS, V
CC
= 3.3V ± 0.3V, T
A
= 25°C
Symbol
C
PD
C
PD
Parameter
Power Dissipation Capacitance per Transceiver Outputs enabled
Power Dissipation Capacitance per Transceiver Outputs disabled
Test Conditions
C
L
= 0pF, f = 10Mhz
Typical
Unit
pF
SWITCHING CHARACTERISTICS
(1)
V
CC
= 2.7V
Symbol
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
t
SU
t
H
t
SU
t
SU
t
SU
t
H
t
H
t
H
t
W
t
W
t
SK
(o)
Parameter
Propagation Delay
Ax to Bx or Bx to Ax
Propagation Delay
LEBA to Ax, LEAB to Bx
Propagation Delay
CLKBA to Ax, CLKAB to Bx
Output Enable Time
OEBA
to Ax,
OEAB
to Bx
Output Disable Time
OEBA
to Ax,
OEAB
to Bx
Set-up Time HIGH or LOW, Ax to CLKAB, Bx to CLKBA
Hold Time HIGH or LOW, Ax to CLKAB, Bx to CLKBA
Set-up Time HIGH or LOW
Ax to LEAB, Bx to LEBA
Set-up Time,
CLKENAB
to CLKAB
Set-up Time,
CLKENBA
to CLKBA
Hold Time HIGH or LOW, Ax after LEAB, Bx after LEBA
Hold Time,
CLKENAB
after CLKAB
Hold Time,
CLKENBA
after CLKBA
LEAB or LEBA Pulse Width HIGH
CLKAB or CLKBA Pulse Width HIGH or LOW
Output Skew
(2)
Clock LOW
Clock HIGH
1.5
0.8
1
1
2.1
2.1
1.8
0.5
0.5
3
3
—
—
—
—
—
—
—
—
—
—
—
1.5
0.8
1
1
2.1
2.1
1.8
0.5
0.5
3
3
—
—
—
—
—
—
—
—
—
—
—
500
ns
ns
ns
ns
ns
ns
ns
ps
ns
ns
ns
—
6
—
5.2
ns
—
6.8
—
5.6
ns
—
6.3
—
5.3
ns
—
6.2
—
5.2
ns
Min.
—
Max.
5.4
V
CC
= 3.3V ± 0.3V
Min.
—
Max.
4.6
Unit
ns
—
—
—
NOTES:
1. See TEST CIRCUITS AND WAVEFORMS. T
A
= – 40°C to + 85°C.
2. Skew between any two outputs of the same package and switching in the same direction.
4
IDT74LVC16601A
3.3V CMOS 18-BIT UNIVERSAL BUS TRANSCEIVER
INDUSTRIAL TEMPERATURE RANGE
TEST CIRCUITS AND WAVEFORMS
TEST CONDITIONS
Symbol
V
LOAD
V
IH
V
T
V
LZ
V
HZ
C
L
V
CC
= 3.3V±0.3V V
CC
= 2.7V
6
2.7
1.5
300
300
50
V
CC
500Ω
Pulse
(1, 2)
Generator
V
IN
D.U.T.
R
T
500Ω
C
L
LVC Link
(1)
(1)
V
CC
= 2.5V±0.2V
2 x Vcc
Vcc
Vcc / 2
150
150
30
(2)
Unit
V
V
V
mV
mV
pF
V
LOAD
Open
GND
SAME PHASE
INPUT TRANSITION
t
PLH
OUTPUT
t
PLH
OPPOSITE PHASE
INPUT TRANSITION
t
PHL
t
PHL
6
2.7
1.5
300
300
50
V
IH
V
T
0V
V
OH
V
T
V
OL
V
IH
V
T
0V
LVC Link
Propagation Delay
ENABLE
CONTROL
INPUT
t
PZL
OUTPUT
SWITCH
NORMALLY
CLOSED
LOW
t
PZH
OUTPUT
SWITCH
NORMALLY
OPEN
HIGH
V
LOAD/2
V
T
t
PHZ
V
T
0V
t
PLZ
DISABLE
V
IH
V
T
0V
V
LOAD/2
V
OL+
V
LZ
V
OL
V
OH
V
OH-
V
HZ
0V
LVC Link
V
OUT
Test Circuit for All Outputs
DEFINITIONS:
C
L
= Load capacitance: includes jig and probe capacitance.
R
T
= Termination resistance: should be equal to Z
OUT
of the Pulse Generator.
NOTES:
1. Pulse Generator for All Pulses: Rate
≤
10MHz; t
F
≤
2.5ns; t
R
≤
2.5ns.
2. Pulse Generator for All Pulses: Rate
≤
10MHz; t
F
≤
2ns; t
R
≤
2ns.
Enable and Disable Times
NOTE:
1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
SWITCH POSITION
Test
Open Drain
Disable Low
Enable Low
Disable High
Enable High
All Other Tests
Switch
V
LOAD
GND
Open
V
IH
V
T
0V
V
OH
V
T
V
OL
V
OH
V
T
V
OL
t
PLH2
t
PHL2
LVC Link
DATA
INPUT
TIMING
INPUT
ASYNCHRONOUS
CONTROL
SYNCHRONOUS
CONTROL
t
SU
t
H
t
REM
t
SU
t
H
V
IH
V
T
0V
V
IH
V
T
0V
V
IH
V
T
0V
V
IH
V
T
0V
LVC Link
INPUT
Set-up, Hold, and Release Times
LOW-HIGH-LOW
PULSE
t
W
HIGH-LOW-HIGH
PULSE
V
T
LVC Link
t
PLH1
t
PHL1
OUTPUT 1
V
T
t
SK
(x)
t
SK
(x)
OUTPUT 2
t
SK
(x)
= t
PLH2
-
t
PLH1
or
t
PHL2
-
t
PHL1
Pulse Width
Output Skew - t
SK
(
X
)
NOTES:
1. For t
SK
(o) OUTPUT1 and OUTPUT2 are any two outputs.
2. For t
SK
(b) OUTPUT1 and OUTPUT2 are in the same bank.
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