ETC PI74ALVCH16245A

PI74ALVCH16245
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3.3V 16-Bit Bidirectional Transceiver
with 3-State Outputs
Product Features
Product Description
•
•
•
•
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 PI74ALVCH16245 is a 16-bit bidirectional transceiver
designed for asynchronous two-way communication between
data buses. The direction control input pin (xDIR) determines
the direction of data flow through the bidirectional transceiver. The
Direction and Output Enable controls are designed to operate
this device as either two independent 8-bit transceivers or one
16-bit transceiver. The output enable (OE) input, when HIGH,
disables both A and B ports by placing them in HIGH Z condition.
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.
•
•
•
•
PI74ALVCH16245 is designed for low voltage operation
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:
– 48-pin 240 mil wide plastic TSSOP (A)
– 48-pin 300 mil wide plastic SSOP (V)
Active bus-hold circuitry is provided to hold unused or floating
data inputs at a valid logic level.
Logic Block Diagram
1DIR
2DIR
1OE
2OE
1A0
2A0
1B0
2B0
1A1
2A1
1B1
2B1
1A2
2A2
1B2
2B2
1A3
2A3
1B3
2B3
1A4
2A4
1B4
2B4
1A5
2A5
1B5
2B5
1A6
2A6
1B6
2B6
1A7
2A7
1B7
2B7
1
PS8088C
04/10/00
PI74ALVCH16245
3.3V 16-Bit Bidirectional Tranceiver
with 3-State Outputs
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Product Pin Description
Pin Name
xOE
xDIR
xAx
xBx
GND
VCC
Truth Table(1)
Description
3-State Output Enable Inputs (Active LOW)
Direction Control Input
Side A Inputs or 3-STATE Inputs
Side B Outputs or 3-STATE Outputs
Ground
Power
Inputs ( 1 )
1
48
1OE
1B0
2
47
1A0
1B1
3
46
1A1
GND
4
45
GND
1B2
5
44
1A2
1B3
6
43
1A3
VCC
7
42
VCC
1B4
8
41
1A4
1B5
9
40
1A5
39
GND
48-pin
A, V
GND
10
1B6
11
38
1A6
1B7
12
37
1A7
2B0
13
36
2A0
2B1
14
35
2A1
GND
15
34
GND
2B2
16
33
2B2
2B3
17
32
2A3
VCC
18
31
VCC
2B4
19
30
2A4
2B5
20
29
2A5
GND
21
28
GND
2B6
22
27
2A6
2B7
23
26
2A7
2DIR
24
25
2OE
xOE
xDIR
L
L
Bus B Data to Bus A
L
H
Bus A Data to Bus B
H
X
Z
Notes:
1. H = High Voltage Level
L = Low Voltage Level
X = Don't Care
Z = High Impedance
Product Pin Configuration
1DIR
Outputs ( 1 )
2
PS8088C
04/10/00
PI74ALVCH16245
3.3V 16-Bit Bidirectional Tranceiver
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 +4.6V
Output Voltage Range, VOUT ....................................... –0.5V to VCC +0.5V
DC Input Voltage ............................................................ –0.5V to +5.0V
DC Output Current ....................................................................... 50 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 = - 100µA, 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 = 100µA, 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
PS8088C
mA
04/10/00
PI74ALVCH16245
3.3V 16-Bit Bidirectional Tranceiver
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%)
Parame te rs
D e s cription
IIN
Input Current
Te s t Conditions (1)
VIN = VCC or GND, VCC = 3.6V
Input
Hold
Current
IIN (HOLD)
Typ.(2)
M in.
M ax.
Units
±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
O utput Current (3- STATE O utputs)
VOUT = VCC or GND, VCC = 3.6V
±10
ICC
Supply Current
VCC = 3.6V, IOUT = 0µA,
VIN = GND or VCC
40
∆ICC
Supply Current per Input
@ TTL HIGH
VCC = 3.0V to 3.6V
O ne Input at VCC - 0.6V
O ther Inputs at VCC or GND
750
CI
Control Inputs
VIN = VCC or GND, VCC = 3.3V
4
CIO
A or B Ports
VO = VCC or GND, VCC = 3.3V
7
µA
pF
Notes:
1. For Max. or Min. conditions, 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)
VCC = 2.5V ± 0.2V
Parame te rs
From (Input)
To (Output)
tPD
A or B
B or A
1.0
tEN
OE
B or A
tDIS
OE
B or A
(2)
VCC = 2.7V
VCC = 3.3V ± 0.3V
M ax.
M in.(2)
M ax.
3.7
3.6
1.0
3
1.0
5.7
5.4
1.0
4.4
1.5
5.2
4.6
1.0
4.1
0
10
10
0
10
M ax.
M in.
M in.(2)
Units
ns
D e s cription
∆t/∆v(3)
Input Transition Rise or Fall
0
ns/V
Notes:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. Recommended operating condition.
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
22
29
4
5
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
PS8088C
04/10/00