21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74ALVTC16344
2.5V, 1-Bit to 4-Bit Address Driver
with 3-State Outputs
Product Features
PI74ALVTC16344 is designed for low voltage operation,
V
DD
= 1.65V to 3.6V
Supports Live Insertion
3.6V I/O Tolerant Inputs and Outputs
Bus Hold
High Drive, 32/64mA @ 3.3V
Uses patented noise reduction circuitry
Power-off high impedance inputs and outputs
Industrial operation at 40°C to +85°C
Packages available:
56-pin 240-mil wide plastic TSSOP (A56)
56-pin 173-mil wide plastic TVSOP (K56)
Product Description
Pericom Semiconductors PI74ALVTC series of logic circuits are
produced using the Companys advanced 0.35 micron CMOS
technology, achieving industry leading speed.
The PI74ALVTC16344 is a 1-bit to 4-bit buffer/driver designed
for 1.65V to 3.6V V
CC
operation.
The address/driver is designed for applications where four separate
memory locations must be addressed by a single address.
To ensure the high-impedance state during power up or power
down, OE should be tied to V
CC
through a pullup resistor; the
minimum value of the resistor is determined by the current sinking
capability of the driver.
The family offers both I/O Tolerant, which allows it to operate in
mixed 1.65/3.6V systems, and Bus Hold, which retains the data
inputs last state preventing floating inputs and eliminating the
need for pullup/down resistors.
Logic Block Diagram
OE1
1
2
1A
8
6
1B4
1B1
5A
36
30
5B4
OE3
29
34
5B1
9
2A
14
13
2B1
6A
2B4
42
41
6B1
37
6B4
OE2
28
16
3B1
OE4
56
48
7B1
3A
15
20
3B4
7A
43
44
7B4
23
4A
21
4B1
8A
49
55
8B1
27
4B4
51
8B4
1
PS8616
06/06/02
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74ALVTC16344
2.5V, 1-Bit to 4-Bit Address Driver
with 3-State Outputs
Pin Description
Pin Name
OE
A
B
GND
V
CC
Description
3-State Output Enable Inputs (Active LOW)
Inputs
3-State Outputs
Ground
Power
Truth Table
(1)
Inputs
OEn
L
L
H
Note:
1. H
L
X
Z
=
=
=
=
A
H
L
H
High Signal Level
Low Signal Level
Irrelevant
High Impedance
Outputs
Bn
H
L
Z
Pin Configuration
OE1
1B1
1B2
GND
1B3
1B4
V
CC
1A
2B1
2B2
GND
2B3
2B4
2A
3A
3B1
3B2
GND
3B3
3B4
4A
V
CC
4B1
4B2
GND
4B3
4B4
OE2
1
2
3
4
5
6
7
8
9
10
11
12
13
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
42
41
40
39
38
37
36
35
34
33
32
31
30
29
OE4
8B1
8B2
GND
8B3
8B4
V
CC
8A
7B1
7B2
GND
7B3
7B4
7A
6A
6B1
6B2
GND
6B3
6B4
5A
V
CC
5B1
5B2
GND
5B3
5B4
OE3
56-Pin
43
14
A, K
2
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06/06/02
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21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74ALVTC16344
2.5V, 1-Bit to 4-Bit Address Driver
with 3-State Outputs
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Supply Voltage Range, V
DD ........................................................
0.5V to 4.6V
Input Voltage Range, V
I ................................................................
0.5V to 4.6V
Output Voltage Range, V
O
(3-Stated) .............................. 0.5V to 4.6V
Output Voltage Range, V
O(1)
(Active) .................. 0.5V to V
DD
+0.5V
DC Input Diode Current (I
IK
) V
I
< 0V ........................................ 50mA
DC Output Diode Current (I
OK
)
V
O
< 0V ................................................................................... 50mA
V
O
> V
DD ....................................................................................................
±50mA
DC Output Source/Sink Current (I
OH
/I
OL
) ......................... 64/128mA
DC V
DD
or GND Current per Supply Pin (I
CC
or GND) ............ ±100mA
Storage Temperature Range, T
stg
.................................. 65°C to150°C
Note:
Stresses greater than those listed under 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.
Recommended Operating Conditions
(2)
M in.
V
DD
V
IH
V
IL
V
I
V
O
Supply voltage
High- level input voltage
Low- level input voltage
Input voltage
O utput voltage
Active State
O ff State
V
DD
=
V
DD
=
V
DD
=
V
DD
=
3.0V to 3.6V
3.0V to 3.6V
2.3V to 2.7V
1.65V to 1.95V
0
−
40
O perating
Data Retention O nly
V
DD
= 2.7V to 3.6V
V
DD
= 2.7V to 3.6V
0.3
0
0
1.65
1.2
2.0
0.8
3.6
V
DD
3.6
32/64
±24
±18
±6
10
85
mA
ns/V
C
V
M ax.
3.6
3.6
Units
O utput current in I
OH
/I
OL
∆
t/
∆v
T
A
Input transistion rise or fall rate
(3)
O perating free- air temperature
Notes:
1. Absolute maximum of I
O
must be observed.
2. Unused control inputs must be held HIGH or LOW to prevent them from floating.
3 As measured between 0.8V and 2.0V, V
DD
= 3.0V.
3
PS8616
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21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74ALVTC16344
2.5V, 1-Bit to 4-Bit Address Driver
with 3-State Outputs
Electrical Characteristics over Recommended Operating Free-Air Temperature Range
(unless otherwise noted)
DC Characteristics (2.7V<V
DD
≤
3.6V)
Parame te r
V
IK
Input Clamp Diode
Conditions
I
IK
=
−
18mA
I
O H
=
−
100
µA
I
O H
=
−
12mA
V
O H
HIGH Level Output Voltage
I
O H
=
−
18mA
I
O H
=
−
24mA
I
O H
=
−
32mA
I
O L
= 100
µA
I
O L
= 12mA
V
O L
LOW Level Output Voltage
I
O L
= 18mA
I
O L
= 24mA
I
O L
= 32mA
I
O L
= 64mA
I
I
I
O Z
I
O FF
I
HO LD
Input Leakage Current
3- State Output Leakage
Power- OFF Leakage Current
Bus Hold Current
A or B Outputs
V
I
= V
DD
, or GND
V
O
= 3.6V
V
I
or V
O
≤
3.6V
V
I
= 0.8V
V
I
= 2.0V
V
I
= 0 to 3.6V
I
DD
∆I
DD
Quiescent Supply Current
Increase in I
DD
per input
V
I
= V
DD
or GND
V
DD
≤
(V
I
,V
O
)
≤
3.6V
V
IH
= V
DD
0.6V,
Other inputs at V
DD
or Gnd
2.7 - 3.6
3.6
2.7
0
3.0
3.6
75
75
±500
50
±50
400
µA
3.0
2.7 - 3.6
2.7
3.0
V
D D
3.0
2.7 - 3.6
2.7
V
DD
0.2
2.2
2.4
2.2
2.0
0.2
0.4
0.4
0.45
0.5
0.55
±5.0
±10
10
V
M in.
Typ.
M ax.
1.2
Units
4
PS8616
06/06/02
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21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74ALVTC16344
2.5V, 1-Bit to 4-Bit Address Driver
with 3-State Outputs
Electrical Characteristics over Recommended Operating Free-Air Temperature Range
(unless otherwise noted; continued from previous page)
DC Characteristics (2.3V
≤
V
DD
≤
2.7V)
De s cription
V
IK
V
OH
Parame te rs
Input Clamp Diode
Conditions
I
IK
= 18mA
I
OH
= 100
µA
I
OH
= 12mA
I
OH
= 18mA
I
OL
= 100
µA
I
OL
= 12mA
I
OL
= 18mA
I
OL
= 24mA
V
I
= V
DD
or GND
V
O
= 3.6
V
V
I
or V
O
≤ 3.6
V
V
I
= 0.7V
V
I
= 1.7V
V
I
= V
DD
or GND
V
DD
≤
(V
I
,V
O
)
≤
3.6V
V
IH
= V
DD
0.6V,
Inputs at V
DD
or Gnd
V
DD
2.3
2.3 - 2.7
2.3
2.3 - 2.7
M in.
Typ.
M ax.
1.2
Units
V
DD
0.2
1.8
1.7
0.2
0.4
V
HIGH Level Output Voltage
V
OL
LOW Level Output Voltage
2.3
0.5
0.55
I
I
I
OZ
I
OFF
I
HOLD(1)
I
DD
∆Ι
DD
Input Leakage Current
3- State Output Leakage
Power- OFF Leakage Current
Bus Hold Current
A or B Outputs
Quiescent Supply Current
Increase in I
DD
per input
2.7
2.3
0
2.5
90
90
±5.0
±10
10
µA
40
2.3 - 2.7
±40
400
µA
Note:
1. Not Guaranteed
5
PS8616
06/06/02
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