ETC PI74ALVCH16827V

PI74ALVCH16827
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20-Bit Buffer/Driver
with 3-State Outputs
Product Features
Product Description
• PI74ALVCH16827 is designed for low voltage operation
Pericom Semiconductor’s PI74ALVCH series of logic circuits are
produced using the Company’s advanced 0.5 micron CMOS
technology, achieving industry leading speed grades.
The PI74ALVCH16827 is a 20-bit non-inverting buffer/driver
designed for 2.3V to 3.6V Vcc operation.
The buffer/driver is composed of two 10-bit sections with separate
output-enable signals. For either 10-bit buffer section, the two
output-enable (1OE1 and 1OE2 or 2OE1 and 2OE2 inputs must both
be low for the corresponding Y outputs to be active. If either outputenable input is HIGH, the outputs of that 10-bit buffer section are
in the high-impedance state.
• VCC = 2.3V to 3.6V
• Hysteresis on all inputs
• Typical VOLP (Output Ground Bounce)
< 0.8V at VCC = 3.3V, TA = 25°C
• Typical VOHV (Output VOH Undershoot)
< 2.0V at VCC = 3.3V, TA = 25°C
• Bus Hold retains last active bus state during 3-state,
eliminating the need for external pullup resistors
• Industrial operation at –40°C to +85°C
• Packages available:
– 56-pin 240 mil wide plastic TSSOP (A)
– 56-pin 300 mil wide plastic SSOP (V)
To ensure the high-impedance state during power up or power
down, OE should be tied to Vcc through a pull-up resistor; the
minimum value of the resistor is determined by the current sinking
ability of the driver.
The PI74ALVCH16827 has the “Bus Hold” which retains the data
input’s last state whenever the data input goes to high-impedance
preventing ‘floating” inputs and eliminating the need for pullup/
down resistors.
Logic Block Diagram
1OE1
1OE2
1A1
1
2OE1
56
55
2OE2
2
1Y1
2A1
To 9 other channels
28
29
42
15
2Y1
To 9 other channels
1
PSXXXX
02/10/00
PI74ALVCH16827
20-Bit
Buffer/Driver
with
3-State Outputs
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Product Pin Description
Pin Name
Truth Table(1)
Inputs
D e s cription
OE
O utput Enable Inputs (Active LOW)
AX
Data Inputs
YX
3- State O utputs
GND
Ground
VCC
Power
1
2
56
55
1OE2
3
4
5
54
53
52
1A2
6
7
8
51
50
49
1A4
1A5
9
10
48
1A6
47
1A7
1Y9
13
46
45
44
GND
1Y8
11
12
1Y10
14
15
16
1OE1
1Y1
1Y2
GND
1Y3
1Y4
VCC
1Y5
1Y6
1Y7
GND
2Y1
56-PIN
43
V56
A56 42
2Y7
22
23
35
34
2A7
2Y8
24
33
2A8
GND
25
26
32
31
GND
2A9
27
28
30
29
2OE2
2Y10
2OE1
L
L
H
H
H
X
X
Z
X
H
X
Z
High Signal Level
Low Signal Level
Irrelevant
High Impedance
1A10
2A4
2Y9
L
2A1
38
37
36
VCC
L
1A9
19
20
21
2Y6
L
1A8
2A3
2Y5
L
VCC
2A2
2Y4
Y
1A3
40
39
GND
A
GND
41
2Y3
OE2
1A1
17
18
2Y2
OE1
Note:
1. H =
L=
X=
Z=
Product Pin Configuration
Outputs
GND
2A5
2A6
VCC
2A10
2
PSXXXX
02/10/00
PI74ALVCH16827
20-Bit
Buffer/Driver
with
3-State Outputs
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Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature ................................................................. –65°C to +150°C
Ambient Temperature with Power Applied .............................. –40°C to +85°C
Input Voltage Range, VIN ............................................................. –0.5V to VCC +0.5V
Output Voltage Range, VOUT ...................................................... –0.5V to VCC +0.5V
DC Input Voltage .......................................................................... –0.5V to +5.0V
DC Output Current .................................................................................. 100 mA
Power Dissipation ........................................................................................ 1.0W
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.
DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 3.3V ± 10%)
Parame te rs
D e s cription
VCC
Supply Voltage
VIH(3)
Input HIGH Voltage
VIL(3)
Input LO W Voltage
VIN
(3)
VOUT(3)
VOH
VOL
IOH(3)
IOL(3)
Te s t Conditions (1)
M in.
2.3
VCC = 2.3V to 2.7V
1.7
VCC = 2.7V to 3.6V
2.0
Typ.(2)
M ax.
3.6
VCC = 2.3V to 2.7V
0.7
VCC = 2.7V to 3.6V
0.8
Input Voltage
0
VCC
O utput Voltage
0
VCC
O utput
HIGH
Voltage
O utput
LO W
Voltage
O utput
HIGH
Current
O utput
LO W
Current
IOH = - 100mA, VCC = Min. to Max.
VCC - 0.2
VIH = 1.7V, IOH = - 6mA, VCC = 2.3V
2.0
VIH = 1.7V, IOH = - 12mA, VCC = 2.3V
1.7
VIH = 2.0V, IOH = - 12mA, VCC = 2.7V
2.2
VIH = 2.0V, IOH = - 12mA, VCC = 3.0V
2.4
VIH = 2.0V, IOH = - 24mA, VCC = 3.0V
2.0
V
IOL = 100mA, VIL = Min. to Max.
0.2
VIL = 0.7V, IOL = 6mA, VCC = 2.3V
0.4
VIL = 0.7V, IOL = 12mA, VCC = 2.3V
0.7
VIL = 0.8V, IOL = 12mA, VCC = 2.7V
0.4
VIL = 0.8V, IOL = 24mA, VCC = 3.0V
0.55
VCC = 2.3V
- 12
VCC = 2.7V
- 12
VCC = 3.0V
- 24
VCC = 2.3V
12
VCC = 2.7V
12
VCC = 3.0V
24
3
Units
PSXXXX
mA
02/10/00
PI74ALVCH16827
20-Bit
Buffer/Driver
with
3-State Outputs
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DC Electrical Characteristics-Continued (Over the Operating Range, TA = –40°C to +85°C, VCC = 3.3V ±10%)
Te s t Conditions (1)
Parame te rs De s cription
Input Current
IIN
Typ.(2)
VIN = VCC or GND, VCC = 3.6V
Input
Hold
Current
IIN (HOLD)
M in.
M ax.
±5
VIN = 0.7V, VCC = 2.3V
45
VIN = 1.7V, VCC = 2.3V
- 45
VIN = 0.8V, VCC = 3.0V
75
VIN = 2.0V, VCC = 3.0V
- 75
VIN = 0 to 3.6V, VCC = 3.6V
±500
IOZ
Output Current (3- STATE Outputs)
VOUT = VCC or GND, VCC = 3.6V
±10
ICC
Supply Current
VCC = 3.6V, IOUT = 0mA,
VIN = GND or VCC
40
DICC
Supply Current per Input
@ TTL HIGH
VCC = 3.0V to 3.6V
One Input at VCC - 0.6V
Other Inputs at VCC or GND
750
Control Inputs
CI
Outputs
CO
mA
3.5
VIN = VCC or GND, VCC = 3.3V
Data Inputs
Units
6
VO = VCC or GND, VCC = 3.3V
pF
7.5
Notes:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 3.3V, +25°C ambient and maximum loading.
3. Unused Control Inputs must be held HIGH or LOW to prevent them from floating.
Switching Characteristics over Operating Range(1)
Parame te rs
VCC = 2.5V ± 0.2V
VCC = 2.7V
From
To
(INPUT) (OUTPUT) M in.(2)
M ax.
M in.(2)
M ax.
tPD
A
tEN
OE
tDIS
OE
Dt/Dv(1)
Y
Transition Rise or Fall
VCC = 3.3V ± 0.3V
M in.(2)
M ax.(2)
1.0
4.7
3.9
1.0
3.4
1.0
6.5
5.7
1.0
4.7
1.9
5.8
4.9
1.3
4.5
0
10
10
0
10
0
Units
MHz
ns
ns/V
Notes:
1. See test circuit and wave forms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
Operating Characteristics, TA = 25ºC
Parame te r
CPD Power Dissipation
Capacitance
Te s t Conditions
Outputs Enabled
Outputs Disabled
CL = 50pF,
f = 10 MHz
VCC = 2.5V ± 0.2V
VCC = 3.3V ± 0.3V
Typical
16
18
4
6
Units
pF
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
4
PSXXXX
02/10/00