PERICOM PI74FCT162Q244T

PI74FCT162Q244T
LOW
NOISE
16-BIT
BUFFER/LINE
DRIVER
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PI74FCT162Q244T
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Fast, Low Noise CMOS 16-Bit
Buffer/Line Driver
Product Features:
Product Description:
• VCC = 5V ±10%
Pericom Semiconductor’s PI74FCT series of logic circuits are produced in the Company’s advanced 0.6 micron CMOS technology,
achieving industry leading speed grades.
• Balanced output drivers:
±12 mA
The PI74FCT162Q244T is a non-inverting 16-bit buffer/line driver
designed for bus interface applications where low noise operation
is essential.
• Output impedance:
35Ω (typical)
• Typical VOLP (Output Ground Bounce) < 0.5V
at VCC = 5V, TA = 25°C
The PI74FCT162Q244T is designed with current limiting resistors
at its outputs to control the output edge rate resulting in lower
ground bounce and undershoot. This device features a typical
output impedance of 35Ω, eliminating the need for external
terminating resistors for most bus interface applications. This noise
suppression benefit is designated by the letter “Q” (for quiet) in the
part number.
• Bus Hold retains last active bus state during tri-state
• Hysteresis on all inputs
• Packages available:
– 48-pin 240 mil wide plastic TSSOP (A)
– 48-pin 300 mil wide plastic SSOP (V)
– 48-pin 150 mil wide plastic BQSOP (B)
The PI74FCT162Q244T also features “Bus Hold” which retains
the input’s last state whenever the input goes to high-impedance
preventing “floating” inputs and eliminating the need for pullup/
down resistors.
• Device models available on request
This high-speed, low power device also features a flow-through
organization for ease of board layout. These devices are designed
with three-state controls to operate in a Quad-Nibble, Dual-Byte, or
a single 16-bit word mode.
Logic Block Diagram
1OE
3OE
1A0
1Y0
3A0
3Y0
1A1
1Y1
3A1
3Y1
1A2
1Y2
3A2
3Y2
1A3
1Y3
3A3
3Y3
2OE
4OE
2A0
2Y0
4A0
4Y0
2A1
2Y1
4A1
4Y1
2A2
2Y2
4A2
4Y2
2A3
2Y3
4A3
4Y3
1
PS2049A 04/12/96
PI74FCT162Q244T
LOW
NOISE
16-BIT
BUFFER/LINE
DRIVER
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Product Pin Description
Pin Name
xOE
xAx
xYx
GND
VCC
Note:
Truth Table
Inputs(1)
Description
3-State Output Enable Inputs (Active LOW)
Inputs(1)
3-State Outputs
Ground
Power
XOE
L
L
H
Note: 1. H
X
L
Z
1. For the PI74FCT162Q244T, these pins have “Bus
Hold.” All other pins are standard, outputs, or I/Os.
xAx
L
H
X
Outputs(1)
xYx
L
H
Z
= High Voltage Level
= Don’t Care
= Low Voltage Level
= High Impedance
Product Pin Configuration
1OE
1
48
1Y0
2
47
2OE
1A0
1Y1
3
46
1A1
GND
4
45
GND
1Y2
5
44
1A2
1A3
1Y3
6
43
VCC
7
42
VCC
2Y0
8
41
2A0
2Y1
9
40
2A1
GND
10
39
GND
2Y2
11
2Y3
12
3Y0
13
3Y1
14
GND
48-PIN
V48
A48
B48
38
2D2
37
2A3
36
3A0
35
3A1
15
34
GND
3Y2
16
33
3A2
3Y3
17
32
3A3
VCC
18
31
VCC
4Y0
19
30
4A0
4Y1
20
29
4A1
GND
21
28
GND
4Y2
22
27
4A2
4Y3
23
26
4A3
4OE
24
25
3OE
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PS2049A 04/12/96
PI74FCT162Q244T
LOW
NOISE
16-BIT
BUFFER/LINE
DRIVER
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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
Supply Voltage to Ground Potential (Inputs & Vcc Only) .......... –0.5V to +7.0V
Supply Voltage to Ground Potential (Outputs & D/O Only) ....... –0.5V to +7.0V
DC Input Voltage ......................................................................... –0.5V to +7.0V
DC Output Current ................................................................................... 120 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 = 5.0V ± 10%)
Parameters Description
VIH
VIL
IIH
IIH
IIL
IIL
IBHH
IBHL
IOZH
IOZL
VIK
IO
VH
Input HIGH Voltage
Input LOW Voltage
Input HIGH Current
Input HIGH Current
Input LOW Current
Input LOW Current
Bus Hold
Sustain Current
High Impedance
Output Current
Clamp Diode Voltage
Output Drive Current
Input Hysteresis
Test Conditions(1)
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
Standard Input, VCC = Max.
Bus Hold Input(4), VCC = Max.
Standard Input, VCC = Min.
Bus Hold Input(4), VCC = Min.
Bus Hold Input(4), VCC = Min.
VCC = Max.
VCC = Max.
VCC = Min., IIN = –18 mA
VCC = Max.(3), VOUT = 2.5V
Min.
Typ(2)
Max.
Units
0.8
1
±100
–1
±100
V
V
µA
µA
µA
µA
µA
2.0
VIN = VCC
VIN = VCC
VIN = GND
VIN = GND
VIN = 2.0V
VIN = 0.8V
VOUT = VCC
VOUT = GND
–50
+50
–0.7
–50
1
–1
–1.2
–180
100
µA
µA
V
mA
mV
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 = 5.0V, +25°C ambient and maximum loading.
3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
4. Pins with Bus Hold are identified in the pin description.
5. This specification does not apply to bi-directional functionalities with Bus Hold.
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PS2049A 04/12/96
PI74FCT162Q244T
LOW
NOISE
16-BIT
BUFFER/LINE
DRIVER
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Output Drive Characteristics (Over the Operating Range)
Test Conditions(1)
Parameters Description
IODL
IODH
Output LOW Current
Output HIGH Current
(3)
VCC = 5V, VIN = VIH OR VIL, VOUT = 1.5V
VCC = 5V, VIN = VIH OR VIL, VOUT = 1.5V(3)
Min.
Typ(2)
Max.
Units
36
-100
—
-166
—
-200
mA
mA
Output Drive Characteristics (Over the Operating Range)
Test Conditions(1)
Parameters Description
Min. Typ(2) Max. Units
VOH
Output HIGH Voltage
VCC = Min., VIN = VIH or VIL
IOH = –12.0 mA
2.4
3.3
—
V
VOL
Output LOW Voltage
VCC = Min., VIN = VIH or VIL
IOL = 12 mA
—
0.4
0.55
V
Capacitance (TA = 25°C, f = 1 MHz)
Parameters(4)
CIN
COUT
Description
Test Conditions
Typ
Max.
Units
Input Capacitance
Output Capacitance
VIN = 0V
VOUT = 0V
4.5
5.5
6
8
pF
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 = 5.0V, +25°C ambient and maximum loading.
3. Not more than one output should be tested at one time. Duration of the test should not exceed one second.
4. This parameter is determined by device characterization but is not production tested.
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PS2049A 04/12/96
PI74FCT162Q244T
LOW
NOISE
16-BIT
BUFFER/LINE
DRIVER
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Power Supply Characteristics
Parameters Description
Test Conditions(1)
Min.
Typ(2)
Max.
Units
ICC
Quiescent Power
Supply Current
VCC = Max.
VIN = GND or VCC
0.1
500
µA
∆ICC
Supply Current per
Input @ TTL HIGH
VCC = Max.
VIN = 3.4V(3)
0.5
1.5
mA
ICCD
Supply Current per
Input per MHz(4)
VCC = Max.,
Outputs Open
XOE = GND
One Bit Toggling
50% Duty Cycle
VIN = VCC
VIN = GND
60
100
µA/
MHz
IC
Total Power Supply
Current(6)
VCC = Max.,
Outputs Open
fI = 10 MHZ
50% Duty Cycle
XOE = GND
One Bit Toggling
VIN = VCC
VIN = GND
0.6
1.5(5)
mA
VIN = 3.4V
VIN = GND
0.9
2.3(5)
VIN = VCC
VIN = GND
2.4
4.5(5)
VIN = 3.4V
VIN = GND
6.4
16.5(5)
VCC = Max.,
Outputs Open
fI = 2.5 MHZ
50% Duty Cycle
XOE = GND
16 Bits Toggling
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at VCC = 5.0V, +25°C ambient.
3. Per TTL driven input (VIN = 3.4V); all other inputs at Vcc or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested.
6. IC =IQUIESCENT + IINPUTS + IDYNAMIC
IC = ICC + ∆ICC DHNT + ICCD (fCP/2 + fINI)
ICC = Quiescent Current
∆ICC = Power Supply Current for a TTL High Input (VIN = 3.4V)
DH = Duty Cycle for TTL Inputs High
NT = Number of TTL Inputs at DH
ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices)
fI = Input Frequency
NI = Number of Inputs at fI
All currents are in milliamps and all frequencies are in megahertz.
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PS2049A 04/12/96
PI74FCT162Q244T
LOW
NOISE
16-BIT
BUFFER/LINE
DRIVER
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Switching Characteristics over Operating Range
162Q244T
162Q244AT
162Q244CT
162Q244DT
162Q244ET
Com.
Com.
Com.
Com.
Com.
Parameters
Description
tPLH
tPHL
tPZH
tPZL
Propagation Delay
XAX to XYX
Output Enable Time
XOE to XAX or XYX
tPHZ
tPLZ
tSK(o)
Output Disable Time(3)
XOE to XAX or XYX
Output Skew(4)
Conditions
CL = 50 pF
RL = 500Ω
(1)
Min
Max
Max
Min
Max
Min
Max
Min
Max
Unit
1.5
6.5
1.5
Min
4.8
1.5
4.1
1.5
3.8
1.5
3.2
ns
1.5
8.0
1.5
6.2
1.5
5.8
1.5
4.8
1.5
4.4
ns
1.5
7.0
1.5
5.6
1.5
5.2
1.5
4.0
1.5
4.0
ns
—
0.5
—
0.5
—
0.5
—
0.5
—
0.5
ns
Notes:
1. See test circuit and wave forms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. This parameter is guaranteed but not production tested.
4. Skew between any two outputs, of the same package, switching in the same direction. This parameter is guaranteed by design.
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
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PS2049A 04/12/96