PI74FCT162H952CTV

更新时间:2024-10-29 02:50:47
品牌:ETC
描述:Dual 8-bit Bus Transceiver

PI74FCT162H952CTV 概述

Dual 8-bit Bus Transceiver 双8位总线收发器\n

PI74FCT162H952CTV 数据手册

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PI74FCT16952T  
PI74FCT162952T
PI74FCT162H952T  
16-Bit Registered Transceivers  
ProductFeatures:  
CommonFeatures:  
Product Description:  
Pericom Semiconductor’s PI74FCT series of logic circuits are pro-  
duced in the Company’s 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 input’s  
last state whenever the input goes to high-impedance preventing  
“floating”inputsandeliminatingtheneedforpull-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 = Don’t 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  
= 500  
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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