IDT74ALVCH162344
3.3V CMOS 1-BIT TO 4-BIT ADDRESS DRIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
3.3V CMOS 1-BIT TO
4-BIT ADDRESS DRIVER
WITH 3-STATE OUTPUTS
AND BUS-HOLD
FEATURES:
• 0.5 MICRON CMOS Technology
• 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
• V
CC
= 2.5V ± 0.2V
• CMOS power levels (0.4µ W typ. static)
µ
• Rail-to-Rail output swing for increased noise margin
• Available in SSOP, TSSOP, and TVSOP packages
IDT74ALVCH162344
DESCRIPTION:
This 1-bit to 4-bit address driver is built using advanced dual metal CMOS
technology. The ALVCH162344 device is used in applications in which four
separate memory locations must be addressed by a single address.
The ALVCH162344 has series resistors in the device output structure 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 ALVCH162344 has “bus-hold” which retains the inputs’ last state
whenever the input goes to a high-impedance. This prevents floating inputs
and eliminates the need for pull-up/down resistors.
DRIVE FEATURES:
• Balanced Output Drivers: ±12mA
• Low switching noise
APPLICATIONS:
• 3.3V high speed systems
• 3.3V and lower voltage computing systems
FUNCTIONAL BLOCK DIAGRAM
OE
1
1
2
8
6
OE
3
1
B
1
5
A
36
29
34
5
B
1
1
A
1
B
4
30
5
B
4
41
42
37
9
14
13
2
B
1
6
A
6
B
1
2
A
2
B
4
6
B
4
OE
2
28
16
OE
4
3
B
1
7
A
20
43
56
48
7
B
1
3
A
15
44
3
B
4
7
B
4
23
21
27
4
B
1
8
A
49
55
8
B
1
4
A
4
B
4
51
8
B
4
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
© 1999 Integrated Device Technology, Inc.
MARCH 1999
DSC-4563/1
IDT74ALVCH162344
3.3V CMOS 1-BIT TO 4-BIT ADDRESS DRIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
OE
1
1
B
1
1
B
2
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol
Description
Max
–0.5 to +4.6
–0.5 to V
CC
+0.5
–65 to +150
–50 to +50
±50
–50
±100
Unit
V
V
°C
mA
mA
mA
mA
V
TERM
(2)
Terminal Voltage with Respect to GND
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
OE
4
8
B
1
8
B
2
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
V
TERM
(3)
Terminal Voltage with Respect to GND
T
STG
I
OUT
I
IK
I
OK
I
CC
I
SS
Storage Temperature
DC Output Current
Continuous Clamp Current,
V
I
< 0 or V
I
> V
CC
Continuous Clamp Current, V
O
< 0
Continuous Current through each
V
CC
or GND
GND
1
B
3
1
B
4
GND
8
B
3
8
B
4
V
CC
1
A
2
B
1
2
B
2
V
CC
8
A
7
B
1
7
B
2
GND
2
B
3
2
B
4
2
A
3
A
3
B
1
3
B
2
GND
7
B
3
7
B
4
7
A
6
A
6
B
1
6
B
2
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. V
CC
terminals.
3. All terminals except V
CC
.
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.
5
7
7
Max.
7
9
9
Unit
pF
pF
pF
GND
3
B
3
3
B
4
4
A
GND
6
B
3
6
B
4
5
A
NOTE:
1. As applicable to the device type.
V
CC
4
B
1
4
B
2
V
CC
5
B
1
5
B
2
PIN DESCRIPTION
Pin Names
OEx
xA
xBx
Data Inputs
(1)
3-State Outputs
Description
3-State Output Enable Inputs (Active LOW)
GND
4
B
3
4
B
4
GND
5
B
3
5
B
4
OE
2
OE
3
NOTE:
1. These pins have "Bus-Hold". All other pins are standard inputs, outputs, or I/Os.
SSOP/ TSSOP/ TVSOP
TOP VIEW
FUNCTION TABLE
(1)
Inputs
OEx
L
L
H
NOTE:
1. H = HIGH Voltage Level
X = Don’t Care
L = LOW Voltage Level
Z = High-Impedance
Outputs
xA
L
H
X
xBx
L
H
Z
2
IDT74ALVCH162344
3.3V CMOS 1-BIT TO 4-BIT ADDRESS DRIVER WITH 3-STATE OUTPUTS
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
V
IK
V
H
I
CCL
I
CCH
I
CCZ
∆I
CC
Input LOW Voltage Level
Input HIGH Current
Input LOW Current
High Impedance Output Current
(3-State Output pins)
Clamp Diode Voltage
Input Hysteresis
Quiescent Power Supply Current
V
CC
= 2.3V, I
IN
= –18mA
V
CC
= 3.3V
V
CC
= 3.6V
V
IN
= GND or V
CC
One input at V
CC
- 0.6V, other inputs at V
CC
or GND
V
CC
= 2.3V to 2.7V
V
CC
= 2.7V to 3.6V
V
CC
= 3.6V
V
CC
= 3.6V
V
CC
= 3.6V
V
I
= V
CC
V
I
= GND
V
O
= V
CC
V
O
= GND
Test Conditions
Min.
1.7
2
—
—
—
—
—
—
—
—
—
Typ.
(1)
—
—
—
—
—
—
—
—
–0.7
100
0.1
Max.
—
—
0.7
0.8
±5
±5
±10
±10
–1.2
—
40
V
mV
µA
µA
µA
µA
V
Unit
V
Quiescent Power Supply Current
Variation
—
—
750
µA
NOTE:
1. Typical values are at V
CC
= 3.3V, +25°C ambient.
BUS-HOLD CHARACTERISTICS
Symbol
I
BHH
I
BHL
I
BHH
I
BHL
I
BHHO
I
BHLO
NOTES:
1. Pins with Bus-Hold are identified in the pin description.
2. Typical values are at V
CC
= 3.3V, +25°C ambient.
Parameter
(1)
Bus-Hold Input Sustain Current
Bus-Hold Input Sustain Current
Bus-Hold Input Overdrive Current
V
CC
= 3V
V
CC
= 2.3V
V
CC
= 3.6V
Test Conditions
V
I
= 2V
V
I
= 0.8V
V
I
= 1.7V
V
I
= 0.7V
V
I
= 0 to 3.6V
Min.
– 75
75
– 45
45
—
Typ.
(2)
—
—
—
—
—
Max.
—
—
—
—
±500
Unit
µA
µA
µA
3
IDT74ALVCH162344
3.3V CMOS 1-BIT TO 4-BIT ADDRESS DRIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
OUTPUT DRIVE CHARACTERISTICS
Symbol
V
OH
Parameter
Output HIGH Voltage
V
CC
= 2.3V
V
CC
= 2.7V
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
Test Conditions
(1)
V
CC
= 2.3V to 3.6V
I
OH
= – 0.1mA
I
OH
= – 4mA
I
OH
= – 6mA
I
OH
= – 4mA
I
OH
= – 8mA
I
OH
= – 6mA
I
OH
= – 12mA
I
OL
= 0.1mA
I
OL
= 4mA
I
OL
= 6mA
I
OL
= 4mA
I
OL
= 8mA
I
OL
= 6mA
I
OL
= 12mA
Min.
V
CC
– 0.2
1.9
1.7
2.2
2
2.4
2
—
—
—
—
—
—
—
Max.
—
—
—
—
—
—
—
0.2
0.4
0.55
0.4
0.6
0.55
0.8
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.
OPERATING CHARACTERISTICS, T
A
= 25°C
V
CC
= 2.5V ± 0.2V
Symbol
C
PD
C
PD
Parameter
Power Dissipation Capacitance Outputs enabled
Power Dissipation Capacitance Outputs disabled
Test Conditions
C
L
= 0pF, f = 10Mhz
Typical
68
12
V
CC
= 3.3V ± 0.3V
Typical
82
14
Unit
pF
SWITCHING CHARACTERISTICS
(1)
V
CC
= 2.5V ± 0.2V
Symbol
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
t
SK(O)
t
SK(
b
)
Parameter
Propagation Delay
xA to xBx
Output Enable Time
OE
to xBx
Output Disable Time
OE
to xBx
Output Skew
(2)
Output Skew
(2)
—
—
—
—
—
—
—
—
—
—
500
350
ps
ps
1
5.4
—
4.7
1.2
4.5
ns
1
6.4
—
6.6
1.2
5.7
ns
Min.
1
Max.
4.9
—
V
CC
= 2.7V
Min.
Max.
5.1
V
CC
= 3.3V ± 0.3V
Min.
1.4
Max.
4.4
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. For t
SK
(
O
), OUTPUT1 and OUTPUT2 are any two outputs. For t
SK
(b), OUTPUT1
and OUTPUT2 are in the same bank of the same package; this parameter is guaranteed but not production tested.
4
IDT74ALVCH162344
3.3V CMOS 1-BIT TO 4-BIT ADDRESS DRIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
V
IH
V
T
0V
V
OH
V
T
V
OL
V
IH
V
T
0V
ALVC Link
TEST CIRCUITS AND WAVEFORMS
TEST CONDITIONS
Symbol
V
LOAD
V
IH
V
T
V
LZ
V
HZ
C
L
V
CC(1)
= 3.3V±0.3V V
CC(1)
= 2.7V
6
2.7
1.5
300
300
50
V
CC
500
Ω
Pulse
Generator
(1, 2)
SAME PHASE
INPUT TRANSITION
V
CC(2)
= 2.5V±0.2V
2 x Vcc
Vcc
Vcc / 2
150
150
30
Unit
V
V
V
mV
mV
pF
V
LOAD
Open
GND
t
PLH
OUTPUT
t
PLH
OPPOSITE PHASE
INPUT TRANSITION
t
PHL
6
2.7
1.5
300
300
50
t
PHL
Propagation Delay
ENABLE
CONTROL
INPUT
t
PZL
OUTPUT
SW ITCH
NORMALLY
CLOSED
LOW
t
PZH
OUTPUT
SW ITCH
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
LZ
V
OL
V
OH
V
HZ
0V
ALVC Link
V
IN
D.U.T.
V
OUT
R
T
500
Ω
C
L
ALVC Link
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
≤
1.0MHz; t
F
≤
2.5ns; t
R
≤
2.5ns.
2. Pulse Generator for All Pulses: Rate
≤
1.0MHz; t
F
≤
2ns; t
R
≤
2ns.
Enable and Disable Times
NOTE:
1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
V
IH
DATA
V
T
INPUT
0V
t
SU
t
H
V
IH
TIMING
V
T
INPUT
0V
t
REM
V
IH
ASYNCHRONOUS
V
T
CONTROL
0V
V
IH
SYNCHRONOUS
V
T
CONTROL
t
SU
0V
t
H
ALVC Link
SWITCH POSITION
Test
Open Drain
Disable Low
Enable Low
Disable High
Enable High
All Other Tests
Switch
V
LOAD
GND
Open
V
IH
INPUT
V
T
0V
V
OH
OUTPUT 1
V
T
V
OL
V
OH
OUTPUT 2
t
PLH2
t
PHL2
ALVC Link
Set-up, Hold, and Release Times
t
PLH1
t
PHL1
LOW-HIGH-LOW
PULSE
t
W
HIGH-LOW -HIGH
PULSE
V
T
t
SK
(x)
t
SK
(x)
V
T
V
OL
V
T
ALVC Link
Pulse Width
t
SK
(x)
= t
PLH2
-
t
PLH1
or
t
PHL2
-
t
PHL1
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.
5
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