PI74FCT162H952ETV [ETC]
Dual 8-bit Bus Transceiver ; 双8位总线收发器\n
| 型号： | PI74FCT162H952ETV |
| 厂家： | 
ETC |
| 描述： | Dual 8-bit Bus Transceiver
|
| 文件： | 总7页 (文件大小：237K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PI74FCT16952T
PI74FCT162952T
PI74FCT162H952T
16-Bit Registered Transceivers
ProductFeatures:
CommonFeatures:
Product Description:
Pericom Semiconductors PI74FCT series of logic circuits are pro-
duced in the Companys advanced 0.6 micron CMOS technology,
achieving industry leading speed grades.
PI74FCT16952T,PI74FCT162952T,andPI74FCT2H952T
are high-speed,
low power devices with high current drive
VCC =5V±10%
ThePI74FCT16952T,PI74FCT162952T,and PI74FCT162H952T
are 16-bit registered transceivers organized with two sets of eight
D-type latches with separate input and output controls for each set.
For data flow from A to B, for example, the A-to-B Enable
(xCEAB) input must be LOW in order to enter data from xAx. The
data present on the A port will be clocked on the B register when
xCLKAB toggles from LOW-to-HIGH. The xOEAB control
performs the output enable function on the B port. Control of data
from B to A is similar, but uses the xCEBA, xCLKBA, and xOEBA
inputs. By connecting the control pins of the two independent
transceivers together, a full 16-bit operation can be achieved. The
output buffers are designed with a Power-Off disable allowing
live insertion of boards when used as backplane drivers.
Hysteresis on all inputs
Packagesavailable:
56-pin240milwideplasticTSSOP(A)
56-pin300milwide plasticSSOP(V)
PI74FCT16952TFeatures:
High output drive: IOH = 32 mA; IOL = 64 mA
Power off disable outputs permit live insertion
Typical VOLP (Output Ground Bounce) < 1.0V
atVCC =5V,TA =25°C
PI74FCT162952TFeatures:
The PI74FCT16952T output buffers are designed with a Power-
Off disable function allowing live insertion of boards when used
as backplane drivers.
Balanced output drivers: ±24 mA
Reduced system switching noise
The PI74FCT162952T 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.
Typical VOLP (Output Ground Bounce) < 0.6V
atVCC =5V,TA =25°C
PI74FCT162H952TFeatures:
Bus Hold retains last active bus state during 3-state
Eliminates the need for external pull-up resistors
The PI74FCT162H952T has Bus Hold which retains the inputs
last state whenever the input goes to high-impedance preventing
floatinginputsandeliminatingtheneedforpull-up/downresistors.
Logic Block Diagram
1OEBA
2OEBA
1CEBA
2CEBA
1
CLKBA
OEAB
CEAB
2
CLKBA
OEAB
CEAB
1
2
1
2
1
CLKAB
2CLKAB
C
C
1
A
0
2A0
1B
0
2B0
D
D
C
C
D
D
TO 7 OTHER CHANNELS
TO 7 OTHER CHANNELS
PS2042A 03/11/96
1
PI74FCT16952T/162952/162H952T
16-BIT REGISTERED TRANSCEIVERS
Product Pin Configuration
Product Pin Description
Pin Name
xOEAB
xOEBA
xCEAB
xCEBA
xCLKAB
xCLKBA
xAx
Description
1
OEAB
1
2
3
4
5
6
7
8
9
10
56
55
54
1
1
1
OEBA
CLKBA
CEBA
A-to-B Output Enable Input (Active LOW)
B-to-A Output Enable Input (Active LOW)
A-to-B Clock Enable Input (Active LOW)
B-to-A Clock Enable Input (Active LOW)
A-to-B Clock Input
1
CLKAB
1
CEAB
GND
53 GND
1A0
52
51
50
49
48
47
1B
0
1
1A1
1B
V
CC
V
CC
B-to-A clock Input
1
A2
A3
A4
1B
2
3
4
A-to-B Data Inputs or B-to-A 3-State
Outputs
1
1B
1
1B
xBx
B-to-A Data Inputs or B-to-A 3-State
Outputs
GND 11
46 GND
56-PIN
V56
A56
1
1
1
2
A
A
A
A
5
6
7
0
1
2
12
13
14
15
16
17
45
44
43
42
41
40
1B
1B
1B
2B
2B
2B
5
6
7
0
1
2
GND
Ground
Power
VCC
Note: 1. For the PI74FCT162H952T, these pins have Bus
Hold. All other pins are standard, outputs, or I/Os.
2
A
A
2
GND 18
39 GND
2
A
3
4
19
20
21
22
23
24
38
37
36
35
34
33
2
2
2
B
B
B
3
2A
4
Truth Table(1,2)
2
A
5
5
V
CC
V
CC
Inputs
Outputs
2
A
6
7
2B
6
xCEAB xCLKAB xOEAB
xAx
X
xBx
2
A
2B
7
GND 25
32 GND
H
X
L
X
L
↑
L
L
L
L
H
B
2
CEAB 26
31
30
29
2CEBA
2CLKBA
2OEBA
X
B
L
2
CLKAB 27
L
2OEAB 28
L
↑
H
H
X
X
X
High Z
1. H = High Voltage Level
L = Low Voltage Level
X = Dont Care or Irrelevant
↑ = LOW-to-HIGH Transition
Z = High Impedance
2. A-to-B data flow shown, B-to-A flow control
is the same, except using xCEBA, xCLKBA,
and xOEBA.
3. Level of B before the indicated steady-state
input conditions were established.
PS2042A 03/11/96
2
PI74FCT16952T/162952/162H952T
16-BIT REGISTERED TRANSCEIVERS
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature ................................................................. 55°C to +125°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
Test Conditions
Min. Typ
Max. Units
VIH
VIL
IIH
IIH
IIH
IIH
IIL
IIL
IIL
Input HIGH Voltage
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
Standard Input, VCC = Max.
Standard I/O, VCC = Max.
Bus Hold Input , VCC = Max.
Bus Hold I/O , VCC = Max.
Standard Input, VCC = Min.
Standard I/O, VCC = Min.
2.0
V
V
Input LOW Voltage
Input HIGH Current
Input HIGH Current
Input HIGH Current
Input HIGH Current
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
Bus Hold Input , VCC = Min.
Bus Hold I/O , VCC = Min.
Bus Hold Input , VCC = Min.
IIL
IBHH
IBHL
IOZH
IOZL
50
+50
Sustain Current
High-Impedance
Output Current
VCC = Max.
VCC = Max.
1
1
µA
µA
(3-STATE OUTPUTS)
Clamp Diode Voltage
Short Circuit Current
Output Drive Current
Input Hysteresis
VIK
IOS
IO
VCC = Min., IIN = 18 mA
VCC = Max. , VOUT = GND
VCC = Max. , 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.
PS2042A 03/11/96
3
PI74FCT16952T/162952/162H952T
16-BIT REGISTERED TRANSCEIVERS
PI74FCT16952T Output Drive Characteristics (Over the Operating Range)
Parameters Description
TestConditions
Min.
Typ
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
IOFF
Output LOW Voltage
PowerDownDisable
VCC = Min., VIN = VIH or VIL
VCC =0V,VIN orVOUT ≤4.5V
0.55
±100
V
µA
PI74FCT162952T/162H952T Output Drive Characteristics (Over the Operating Range)
Parameters Description
TestConditions
Min.
Typ
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
VCC =5V,VIN =VIH OR VIL,VOUT =1.5V
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=1MHz)
Parameters
Description
TestConditions
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.
PS2042A 03/11/96
4
PI74FCT16952T/162952/162H952T
16-BIT REGISTERED TRANSCEIVERS
Power Supply Characteristics
Parameters Description
Test Conditions(1)
Min. Typ(2) Max. Units
ICC
Quiescent Power
Supply Current
VCC = Max.
VCC = Max.
VIN = GND
or VCC
0.1
0.5
75
500
µA
∆ICC
ICCD
Supply Current per
Input @ TTL HIGH
VIN = 3.4V(3)
1.5
mA
Supply Current per
Input per MHz(4)
VCC = Max., Outputs Open
xOEAB or xOEBA = GND
One Input Toggling
VIN = VCC
VIN = GND
120
µA/
MHz
50% Duty Cycle
IC
Total Power Supply
Current(6)
VCC = Max.,
Outputs Open
VIN = VCC
VIN = GND
0.8
1.7(5)
mA
fCP = 10 MHZ (XCLKAB)
50% Duty Cycle
xOEAB = xCEAB = GND
xOEAB = VCC
One Bit Toggling
VIN = 3.4V
VIN = GND
1.3
3.8
3.2(5)
6.5(5)
fI = 5 MHz
VCC = Max.,
VIN = VCC
Outputs Open
VIN = GND
fCP = 10 MHZ (XCLKAB)
50% Duty Cycle
xOEAB = xCEAB = GND
xOEAB = VCC
VIN = 3.4
8.3
20.5(5)
16 Bits Toggling
fI = 2.5 MHZ
VIN = GND
50% Duty Cycle
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.
PS2042A 03/11/96
5
PI74FCT16952T/162952/162H952T
16-BIT REGISTERED TRANSCEIVERS
PI74FCT16952T Switching Characteristics over Operating Range
16952AT
16952BT
Com.
16952CT
Com.
16952DT
Com.
16952ET
Com.
Com.
Parameters Description
Conditions(1) Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Unit
t
t
t
t
t
t
t
PLH
PHL
PZH
PZL
PHZ
PLZ
SU
Propagation Delay
CLKAB, CLKBA TO X
Output Enable Time
OEBA, OEAB to
Output Disable Time(3)
OEBA, OEAB to
C
R
L
L
= 50 pF
= 500Ω
2.0
1.5
1.5
2.5
2.0
3.0
10.0
10.5
10.0
2.0
7.5
8.0
7.5
2.0
1.5
1.5
2.5
1.5
3.0
6.3
7.0
6.5
2.0
1.5
1.5
2.0
1.0
2.0
4.4
4.8
4.0
1.5
1.5
1.5
1.5
0.0
2.0
3.7
ns
X
X
B
X
,
X
X
X
A
X
1.5
1.5
2.5
2.0
3.0
4.4
4.0
ns
ns
ns
ns
ns
X
X
X
A
X
X
,
X
B
B
X
X
XA
,
X
Setup Time HIGH or LOW
X TO XCLKAB, CLKBA
Hold Time HIGH or LOW
X TO XCLKAB, CLKBA
Setup Time HIGH or LOW
CEAB, xCEBA to
X
A
X
,
XB
X
tH
X
A
X
,
XB
X
tSU
X
to xCLKAB, xCLKBA
tH
Hold Time HIGH or LOW
2.0
2.0
2.0
1.5
0.0
ns
X
CEAB, xCEBA to
to xCLKAB, xCLKBA
Pulse Width HIGH(3) or
t
W
3.0
3.0
3.0
3.0
3.0
ns
ns
LOW, xCLKAB or xCLKBA
(4)
T
SK
(O)
O
UTPUT
SKEW
0.5
0.5
0.5
0.5
0.5
PI74FCT162952T Switching Characteristics over Operating Range
16952AT
16952BT
Com.
16952CT
Com.
16952DT
Com.
16952ET
Com.
Max
Com.
Parameters Description
Conditions(1) Min
Max
Min
Max
Min
Max
Min
Max
Min
Unit
t
t
t
t
t
t
t
PLH
PHL
PZH
PZL
PHZ
PLZ
SU
Propagation Delay
CLKAB, CLKBA TO X
Output Enable Time
OEBA, OEAB to
Output Disable Time(3)
OEBA, OEAB to
C
R
L
L
= 50 pF
= 500Ω
2.0
1.5
1.5
2.5
2.0
3.0
10.0
10.5
10.0
2.0
7.5
8.0
7.5
2.0
1.5
1.5
2.5
1.5
3.0
6.3
7.0
6.5
2.0
1.5
1.5
2.0
1.0
2.0
4.4
4.8
4.0
1.5
3.7
4.4
4.0
ns
X
X
B
X
,
X
X
X
A
X
1.5
1.5
2.5
2.0
3.0
1.5
1.5
1.5
0.0
2.0
ns
ns
ns
ns
ns
X
X
X
A
X
X
,
X
B
B
X
X
XA
,
X
Setup Time HIGH or LOW
X TO XCLKAB, CLKBA
Hold Time HIGH or LOW
X TO XCLKAB, CLKBA
Setup Time HIGH or LOW
CEAB, xCEBA to
X
A
X
,
XB
X
tH
X
A
X
,
XB
X
tSU
X
to xCLKAB, xCLKBA
tH
Hold Time HIGH or LOW
2.0
2.0
2.0
1.5
0.0
ns
X
CEAB, xCEBA to
to xCLKAB, xCLKBA
Pulse Width HIGH(3) or
t
W
3.0
3.0
3.0
3.0
3.0
ns
ns
LOW, xCLKAB or xCLKBA
(4)
T
SK
(O)
O
UTPUT
SKEW
0.5
0.5
0.5
0.5
0.5
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.
PS2042A 03/11/96
6
PI74FCT16952T/162952/162H952T
16-BIT REGISTERED TRANSCEIVERS
PI74FCT162H952T Switching Characteristics over Operating Range
16952AT
16952BT
Com.
16952CT
Com.
16952DT
Com.
16952ET
Com.
Com.
Parameters Description
Conditions(1) Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Unit
t
t
t
t
t
t
t
PLH
PHL
PZH
PZL
PHZ
PLZ
SU
Propagation Delay
CLKAB, CLKBA TO X
Output Enable Time
OEBA, OEAB to
Output Disable Time(3)
OEBA, OEAB to
C
R
L
L
= 50 pF
= 500Ω
2.0
1.5
1.5
2.5
2.0
3.0
10.0
10.5
10.0
2.0
7.5
8.0
7.5
2.0
1.5
1.5
2.5
1.5
3.0
6.3
2.0
1.5
1.5
2.0
1.0
2.0
4.4
4.8
4.0
1.5
1.5
1.5
1.5
0.0
2.0
3.7
ns
X
X
B
X
,
X
X
X
A
X
1.5
1.5
2.5
2.0
3.0
7.0
6.5
4.4
4.0
ns
ns
ns
ns
ns
X
X
X
A
X
X
,
X
B
B
X
X
XA
,
X
Setup Time HIGH or LOW
X TO XCLKAB, CLKBA
Hold Time HIGH or LOW
X TO XCLKAB, CLKBA
Setup Time HIGH or LOW
CEAB, xCEBA to
X
A
X
,
XB
X
tH
X
A
X
,
XB
X
tSU
X
to xCLKAB, xCLKBA
tH
Hold Time HIGH or LOW
2.0
2.0
2.0
1.5
0.0
ns
X
CEAB, xCEBA to
to xCLKAB, xCLKBA
Pulse Width HIGH(3) or
t
W
3.0
3.0
3.0
3.0
3.0
ns
ns
LOW, xCLKAB or xCLKBA
(4)
T
SK
(O)
O
UTPUT
SKEW
0.5
0.5
0.5
0.5
0.5
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
PS2042A 03/11/96
7
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