162541CT [PERICOM]
Fast CMOS 16-Bit Octal Buffer/Line Drivers; 快速CMOS 16位八路缓冲器/线路驱动器
| 型号： | 162541CT |
| 厂家： | 
PERICOM SEMICONDUCTOR CORPORATION |
| 描述： | Fast CMOS 16-Bit Octal Buffer/Line Drivers |
| 文件： | 总6页 (文件大小：65K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PI74FCT16541T
PI74FCT162541T
PI74FCT162H541T
Fast CMOS 16-Bit Octal
Buffer/Line Drivers
Product Features
Common Features
• PI74FCT16541T, PI74FCT162541T, and
PI74FCT162H541T are high-speed,
low power devices with high current drive
• VCC = 5V ±10%
• Hysteresis on all inputs
• Packages available
– 48-pin 240 mil wide plastic TSSOP (A48)
– 48-pin 300 mil wide plastic SSOP (V48)
PI74FCT16541T Features
• High output drive: IOH = –32 mA; IOL = 64 mA
• Power off disable outputs permit “live insertion”
• Typical VOLP (Output Ground Bounce) < 1.0V
at VCC = 5V, TA = 25°C
PI74FCT162541T Features
• Balanced output drivers: ±24 mA
• Reduced system switching noise
• Typical VOLP (Output Ground Bounce) < 0.6V
at VCC = 5V, TA = 25°C
PI74FCT162H541T Features
Product Description
Pericom Semiconductor’s PI74FCT series of logic circuits are pro-
ducedintheCompany’sadvanced 0.6/0.8 micron CMOStechnology,
achieving industry leading speed grades.
ThePI74FCT16541T,PI74FCT162541T,andPI74FCT162H541T
arenon-inverting16-bitbuffer/linedriversdesignedforapplications
driving high capacitance loads and low impedance backplanes.
Thesehigh-speed,low-powerdevicesofferbus/backplaneinterface
capabilityandaflow-throughorganizationforeaseofboardlayout.
They are designed with three-state controls to operate in a Dual-
Byte, or a single 16-bit word mode.
The PI74FCT16541T output buffers are designed with a Power-
Off disable allowing “live insertion” of boards when used as
backplane drivers.
The PI74FCT162541T has ±24 mA balanced output drivers. It is
designed with current limiting resistors at its outputs to control the
output edge rate resulting in lower ground bounce and undershoot.
This eliminates the need for external terminating resistors for most
interface applications.
• Bus Hold retains last active bus state during 3-state
The PI74FCT162H541T has “Bus Hold” which retains the input’s
last state whenever the input goes to high-impedance preventing
“floating”inputsandeliminatingtheneedforpull-up/downresistors.
• Eliminates the need for external pull-up resistors
Logic Block Diagram
1OE
A
2OEA
1OE
B
2OEB
1A
1A
1
A
0
1
2
2A
2A
2
A
0
1
2
1
1
1
Y
0
1
2
2
2
2
Y
0
1
2
Y
Y
Y
Y
1
A
A
3
4
2
A
A
3
4
1
1
Y
Y
3
4
2
2
Y
Y
3
4
1
2
1
A
A
5
6
2
A
A
5
6
1
1
Y
Y
5
6
2
2
Y
Y
5
6
1
2
1A
7
2A
7
1
Y
7
2
Y
7
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16-BIT BUFFER/LINE DRIVERS
Product Pin Description
Truth Table
Inputs(1)
Outputs(1)
Pin Name
XOE
Description
XOE
L
xAx
L
xYx
H
3-State Output Enable Inputs (Active LOW)
Inputs(1)
xAx
L
H
L
xYx
3-State Outputs
Ground
H
X
Z
GND
VCC
Power
Note: 1. H = High Voltage Level
X = Don’t Care
Note: 1. For the PI74FCT162H541T, these pins have “Bus
L = Low Voltage Level
Z = High Impedance
Hold.” All other pins are standard, outputs, or I/Os.
Product Pin Configuration
1
OE
A
1
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1
1
1
OEB
1Y
0
1
A
A
0
1
2
3
4
1Y
GND
GND
1
Y
Y
2
3
1
A
A
2
3
5
1
1
6
V
CC
V
1
CC
7
1
Y
Y
4
5
A
4
5
8
1
1A
9
GND
GND
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1Y
1Y
2Y
2Y
6
7
0
1
1A
1A
2A
2A
6
7
0
1
48-PIN
V48
A48
GND
GND
2
Y
Y
2
3
2
A
A
2
3
2
2
V
CC
V
2
CC
2
Y
Y
4
5
A
4
5
2
2A
GND
GND
2
Y
Y
6
7
2
2
2
A
6
7
2
A
2OE
A
OEB
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PI74FCT16541/162541/162H541T
16-BIT BUFFER/LINE DRIVERS
MaximumRatings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Note:
StorageTemperature .................................................................... –65°Cto+150°C
Ambient Temperature with Power Applied ....................................–40°Cto+85°C
Supply Voltage to Ground Potential (Inputs & Vcc Only) .............. –0.5Vto+7.0V
Supply Voltage to Ground Potential (Outputs & D/O Only) ........... –0.5Vto+7.0V
DC Input Voltage ............................................................................ –0.5Vto+7.0V
DC Output Current ..................................................................................... 120mA
Power Dissipation ..........................................................................................1.0W
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
TestConditions(1)
Min.
Typ(2)
Max.
Units
VIH
VIL
IIH
InputHIGHVoltage
GuaranteedLogicHIGHLevel
GuaranteedLogicLOWLevel
Standard Input, VCC = Max.
StandardI/O,VCC =Max.
Bus Hold Input(4), VCC = Max.
BusHoldI/O(4), VCC =Max.
Standard Input, VCC = Min.
Standard I/O, VCC = Min.
2.0
V
V
Input LOW Voltage
InputHIGHCurrent
InputHIGHCurrent
InputHIGHCurrent
InputHIGHCurrent
Input LOW Current
Input LOW Current
Input LOW Current
Input LOW Current
Bus Hold
0.8
1
1
±100
±100
–1
–1
±100
±100
VIN =VCC
VIN =VCC
VIN =VCC
VIN =VCC
VIN =GND
VIN =GND
VIN = GND
VIN = GND
VIN =2.0V
VIN=0.8V
VOUT =2.7V
VOUT =0.5V
µA
µA
µA
µA
µA
µA
µA
µA
µA
IIH
IIH
IIH
IIL
IIL
IIL
IIL
Bus Hold Input(4), VCC = Min.
Bus Hold I/O(4), VCC = Min.
Bus Hold Input(4), VCC = Min.
IBHH
IBHL
IOZH
–50
+50
Sustain Current
High-Impedance
Output Current
(5)
(5)
VCC =Max.
VCC =Max.
1
–1
µA
µA
IOZL
(3-STATE OUTPUTS)
ClampDiodeVoltage
ShortCircuitCurrent
Output Drive Current
Input Hysteresis
VIK
IOS
IO
VCC = Min., IIN =–18mA
VCC =Max.(3),VOUT = GND
VCC =Max.(3),VOUT =2.5V
–0.7
–140
–1.2
–200
–180
V
–80
–50
mA
mA
mV
VH
100
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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16-BIT BUFFER/LINE DRIVERS
PI74FCT16541T Output Drive Characteristics (Over the Operating Range)
Parameters Description
TestConditions(1)
Min.
Typ(2)
Max.
Units
VOH
OutputHIGHVoltage
VCC =Min.,VIN =VIH orVIL
IOH = –3.0 mA
IOH =–15.0mA
IOH = –32.0 mA
IOL = 64 mA
2.5
2.4
2.0
3.5
3.5
3.0
0.2
V
VOL
Output LOW Voltage
PowerDownDisable
VCC = Min., VIN = VIH or VIL
0.55
±100
V
IOFF
VCC =0V,VIN orVOUT ≤4.5V
—
—
µA
PI74FCT162541T/162H541TOutputDriveCharacteristics(OvertheOperatingRange)
Parameters Description
TestConditions(1)
Min.
Typ(2)
Max.
Units
VOH
VOL
IODL
IODH
OutputHIGHVoltage
VCC =Min.,VIN =VIH orVIL
VCC =Min.,VIN =VIH orVIL
VCC =5V,VIN =VIH OR VIL,VOUT =1.5V(3)
VCC =5V,VIN =VIH OR VIL,VOUT =1.5V(3)
IOH =–24.0mA
IOL = 24 mA
2.4
3.3
0.3
115
–115
V
V
mA
mA
Output LOW Voltage
Output LOW Current
OutputHIGHCurrent
0.55
150
–150
60
–60
Capacitance (TA = 25°C, f = 1 MHz)
Parameters(4)
Description
Test Conditions
Typ
Max.
Units
CIN
Input Capacitance
Output Capacitance
VIN = 0V
4.5
5.5
6
8
pF
pF
COUT
VOUT = 0V
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. This parameter is determined by device characterization but is not production tested.
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PI74FCT16541/162541/162H541T
16-BIT BUFFER/LINE DRIVERS
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
0.5
60
500
µA
∆ICC
ICCD
Supply Current per
Input @ TTL HIGH
VCC = Max.
VIN = 3.4V(3)
1.5
mA
Supply Current per
Input per MHz(4)
VCC = Max.,
Outputs Open
XOE = GND
VIN = VCC
VIN = GND
100
µA/
MHz
One Bit Toggling
50% Duty Cycle
IC
Total Power Supply
Current(6)
VCC = Max.,
Outputs Open
fI = 10 MHZ
VIN = VCC
VIN = GND
0.6
1.5(5)
mA
50% Duty Cycle
XOE = GND
One Bit Toggling
VIN = 3.4V
VIN = GND
0.9
2.4
2.3(5)
4.5(5)
VCC = Max.,
Outputs Open
fI = 2.5 MHZ
50% Duty Cycle
XOE = GND
VIN = VCC
VIN = GND
16 Bits Toggling
VIN = 3.4V
VIN = GND
6.4
16.5(5)
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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PI74FCT16541/162541/162H541T
16-BIT BUFFER/LINE DRIVERS
PI74FCT16541T Switching Characteristics over Operating Range
16541T
Com.
16541AT
Com.
16541CT
Com.
16541DT
Com.
16541ET
Com.
Parameters
Description
Conditions(1)
Min Max Min Max Min Max Min Max Min Max Unit
t
t
PLH
PHL
PropagationDelay
C
L
L
= 50 pF
1.5
1.5
1.5
—
8.0
10.0
9.5
1.5
1.5
1.5
—
4.8
6.2
5.6
0.5
1.5
1.5
1.5
—
4.3
5.8
5.2
0.5
1.5
1.5
1.5
—
3.6
4.8
4.0
0.5
1.5
1.5
1.5
—
3.2
4.4
4.0
0.5
ns
ns
ns
ns
X
A
X
to
XY
X
R
=500Ω
t
t
PZH
PZL
OutputEnableTime
xOEtoxAxorxYx
OutputDisableTime(3)
t
t
PHZ
PLZ
xOEtoxAxorxYx
OutputSkew(4)
tSK(o)
0.5
PI74FCT162541T Switching Characteristics over Operating Range
162541T
Com.
162541AT 162541CT 162541DT 162541ET
Com. Com. Com. Com.
Parameters
Description
Conditions(1)
Min Max Min Max Min Max Min Max Min Max Unit
t
t
PLH
PHL
PropagationDelay
C
L
L
= 50 pF
1.5
1.5
1.5
—
8.0
10.0
9.5
1.5
1.5
1.5
—
4.8
6.2
5.6
0.5
1.5
1.5
1.5
—
4.3
5.8
5.2
0.5
1.5
1.5
1.5
—
3.6
4.8
4.0
0.5
1.5
1.5
1.5
—
3.2
4.4
4.0
0.5
ns
ns
ns
ns
X
AX
to
XY
X
R
=500Ω
t
t
PZH
PZL
OutputEnableTime
xOEtoxAxorxYx
OutputDisableTime(3)
t
t
PHZ
PLZ
xOEtoxAxorxYx
OutputSkew(4)
tSK(o)
0.5
PI74FCT162H541T Switching Characteristics over Operating Range
162H541T 162H541AT 162H541CT 162H541DT 162H541ET
Com. Com. Com. Com. Com.
Min Max Min Max Min Max Min Max Min Max Unit
Parameters
Description
Conditions(1)
t
PLH
PHL
PropagationDelay
C
L
L
= 50 pF
1.5
8.0
1.5
4.8
6.2
5.6
0.5
1.5
1.5
1.5
—
4.3
5.8
5.2
0.5
1.5
1.5
1.5
—
3.6
4.8
4.0
0.5
1.5
1.5
1.5
—
3.2
4.4
4.0
0.5
ns
ns
ns
ns
t
X
AX
to
XY
X
R
= 500Ω
t
PZH
PZL
Output Enable Time
xOE to xAx or xYx
Output Disable Time(3)
1.5 10.0 1.5
t
t
PHZ
PLZ
1.5
—
9.5
0.5
1.5
—
t
xOE to xAx or xYx
OutputSkew(4)
tSK(o)
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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