21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74FCT861T/863T/864T
BUS TRANSCEIVERS
PI74FCT861T/863T/864T
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
Fast CMOS
Bus Transceivers
Product Features:
• PI74FCT861/863T/864T is pin compatible with bipolar FAST™
Series at a higher speed and lower power consumption
• TTL input and output levels
• Extremely low static power
• Hysteresis on all inputs
• Industrial operating temperature range: –40°C to +85°C
• Packages available:
– 24-pin 300 mil wide plastic DIP (P)
– 24-pin 150 mil wide plastic QSOP (Q)
– 24-pin 150 mil wide plastic TQSOP (R)
– 24-pin 300 mil wide plastic SOIC (S)
Product Description:
Pericom Semiconductor’s PI74FCT series of logic circuits are
produced in the Company’s advanced 0.8 micron CMOS
technology, achieving industry leading speed grades.
The PI74FCT860T series bus transceivers provide high-
performance bus interface buffering for wide data/address paths
carrying parity. They are designed for high-capacitance load drive
capability while providing bus loading at both inputs and outputs.
The PI74FCT861T is a 10-bit non-inverting bus transceiver.
The PI74FCT863T is a 9-bit non-inverting option of the
PI74FCT864T 9-bit inverting bus transceiver.
PI74FCT861/863/864T Logic Block Diagram
T
0
T
1
T
2
T
3
T
4
T
5
T
6
T
7
T
8
T
9
OER
R
0
R
1
R
2
R
3
R
4
R
5
R
6
R
7
R
8
R
9
OET
Note: PI74FCT861T function is shown.
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PS2026A 03/11/96
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PI74FCT861T/863T/864T
BUS TRANSCEIVERS
PI74FCT861T 10-Bit Product Configuration
OER
R
0
R
1
R
2
R
3
R
4
R
5
R
6
R
7
R
8
R
9
GND
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
Vcc
T
0
T
1
T
2
T
3
T
4
T
5
T
6
T
7
T
8
T
9
OET
Product Pin Description
Pin Name
R
N
T
N
OER
N
OET
N
GND
V
CC
Description
Receive Inputs/Outputs
Transmit Inputs/Outputs
Output Enable Receive Mode
Output Enable Transmit Mode
Ground
Power
24-PIN
P24
Q24
R24
S24
21
20
19
18
17
16
15
14
13
PI74FCT861/863T (non-inverting) Truth Table
(1)
Inputs
Outputs
Function
High-Z
Transmitting
OET
N
OER
N
H
L
L
H
H
H
H
H
L
L
R
N
X
L
H
N/A
N/A
T
N
X
N/A
N/A
L
H
R
N
Z
N/A
N/A
L
H
T
N
Z
L
H
N/A
N/A
PI74FCT863/864T 9-Bit Product Configuration
OER
1
R
0
R
1
R
2
R
3
R
4
R
5
R
6
R
7
R
8
OER
2
GND
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
Vcc
T
0
T
1
T
2
T
3
T
4
T
5
T
6
T
7
T
8
OET
2
OET
1
Transmitting
Receiving
Receiving
1.
24-PIN
P24
Q24
R24
S24
21
20
19
18
17
16
15
14
13
H = High Voltage Level
L = Low Voltage Level
X = Don't Care
NA = Not Applicable
Z = High Impedance
PI74FCT864T (inverting) Truth Table
(1)
Inputs
Outputs
Function
High-Z
Transmitting
Transmitting
Receiving
Receiving
1.
OET
N
OER
N
H
H
L
L
H
H
H
H
L
L
R
N
X
L
H
N/A
N/A
T
N
X
N/A
N/A
L
H
R
N
Z
N/A
N/A
H
L
T
N
Z
H
L
N/A
N/A
H = High Voltage Level
L = Low Voltage Level
X = Don't Care
NA = Not Applicable
Z = High Impedance
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PS2026A 03/11/96
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PI74FCT861T/863T/864T
BUS TRANSCEIVERS
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 ..........................................................................................0.5W
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, T
A
= –40°C to +85°C, V
CC
= 5V ± 5%)
Parameters Description
V
OH
V
OL
V
IH
V
IL
I
IH
I
IL
I
OZH
I
OZL
I
I
V
IK
I
OS
I
OFF
V
H
Output HIGH Voltage
Output LOW Current
Input HIGH Voltage
Input LOW Voltage
Input HIGH Current
Input LOW Current
High Impedance
Output Current
Input HIGH Current
Clamp Diode Voltage
Short Circuit Current
Power Down Disable
Input Hysteresis
V
CC
= Max., V
IN
= V
CC
(Max.)
V
CC
= Min., I
IN
= –18 mA
V
CC
= Max.
(3)
, V
OUT
= GND
V
CC
= GND, V
OUT
= 4.5V
–60
—
–0.7
–120
—
200
100
Test Conditions
(1)
V
CC
= Min., V
IN
= V
IH
or V
IL
V
CC
= Min., V
IN
= V
IH
or V
IL
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
V
CC
= Max.
V
CC
= Max.
V
CC
= Max.
V
IN
= V
CC
V
IN
= GND
V
OUT
= 2.7V
V
OUT
= 0.5V
I
OH
= –15.0 mA
I
OL
= 48 mA
2.0
0.8
1
–1
1
–1
20
–1.2
Min.
2.4
Typ
(2)
3.0
0.3
0.50
Max.
Units
V
V
V
V
µA
µA
µA
µA
µA
V
mA
µA
m
V
Capacitance
(T
A
= 25°C, f = 1 MHz)
Parameters
(4)
C
IN
C
OUT
Description
Input Capacitance
Output Capacitance
Test Conditions
V
IN
= 0V
V
OUT
= 0V
Typ
6
8
Max.
10
12
Units
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 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.
3
PS2026A 03/11/96
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PI74FCT861T/863T/864T
BUS TRANSCEIVERS
Power Supply Characteristics
Parameters Description
I
CC
∆I
CC
I
CCD
Quiescent Power
Supply Current
Supply Current per
Input @ TTL HIGH
Supply Current per
Input per MHz
(4)
V
CC
= Max.
V
CC
= Max.
V
CC
= Max.,
Outputs Open
OE = GND;
One Input Toggling
50% Duty Cycle
V
CC
= Max.,
Outputs Open
f
CP
= 10 MH
Z
50% Duty Cycle
OE = GND;
f
I
= 5 MH
Z
One Bit Toggling
V
CC
= Max.,
Outputs Open
f
CP
= 10 MH
Z
50% Duty Cycle
OE = GND;
Eight Bits Toggling
f
I
= 2.5 MH
Z
50% Duty Cycle
Test Conditions
(1)
V
IN
= GND
or V
CC
V
IN
= 3.4V
(3)
V
IN
= V
CC
V
IN
= GND
Min.
Typ
(2)
0.1
0.5
0.15
Max.
500
2.0
0.25
Units
µA
mA
mA/
MHz
I
C
Total Power Supply
Current
(6)
V
IN
= V
CC
V
IN
= GND
V
IN
= 3.4V
V
IN
= GND
1.5
3.5
(5)
mA
1.8
4.5
(5)
V
IN
= V
CC
V
IN
= GND
V
IN
= 3.4V
V
IN
= GND
3.0
6.0
(5)
5.0
14.0
(5)
Notes:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at Vcc = 5. V, +25°C ambient.
3. Per TTL driven input (V
IN
= 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. I
C
=I
QUIESCENT
+ I
INPUTS
+ I
DYNAMIC
I
C
= I
CC
+
∆I
CC
D
H
N
T
+ I
CCD
(f
CP
/2 + f
I
N
I
)
I
CC
= Quiescent Current
∆I
CC
= Power Supply Current for a TTL High Input (V
IN
= 3.4V)
D
H
= Duty Cycle for TTL Inputs High
N
T
= Number of TTL Inputs at D
H
I
CCD
= Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
f
CP
= Clock Frequency for Register Devices (Zero for Non-Register Devices)
f
I
= Input Frequency
N
I
= Number of Inputs at f
I
All currents are in milliamps and all frequencies are in megahertz.
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PS2026A 03/11/96
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PI74FCT861T/863T/864T
BUS TRANSCEIVERS
PI74FCT861T (non-inverting) Switching Characteristics over Operating Range
861AT
Com.
861BT
Com.
Max
Min
Max
Min
861CT
Com.
Max
Unit
Parameters
t
PLH
t
PHL
Description
Propagation Delay
R
N
to T
N
or
T
N
to R
N
Output Enable Time
OET to T
N
or
OER to R
N
Output Disable Time
(3)
OET to T
N
or
OER to R
N
Conditions
(1)
C
L
= 50 pF
R
L
= 500Ω
C
L
= 300 pF
(3)
R
L
= 500Ω
C
L
= 50 pF
R
L
= 500Ω
C
L
= 300 pF
(3)
R
L
= 500Ω
C
L
= 50 pF
R
L
= 500Ω
C
L
= 5 pF
(3)
R
L
= 500Ω
Min
1.5
1.5
1.5
1.5
1.5
1.5
8.0
15.0
12.0
20.0
9.0
10.0
1.5
1.5
1.5
1.5
1.5
1.5
6.0
13.0
8.0
15.0
6.0
7.0
1.5
1.5
1.5
1.5
1.5
1.5
5.5
11.5
6.8
13.0
5.0
6.0
ns
ns
ns
ns
ns
ns
t
PZH
t
PZL
t
PHZ
t
PLZ
PI74FCT863T (non-inverting) Switching Characteristics over Operating Range
863AT
Com.
863BT
Com.
Max
Min
Max
Min
863CT
Com.
Max
Unit
Parameters
t
PLH
t
PHL
Description
Propagation Delay
R
N
to T
N
or
T
N
to R
N
Output Enable Time
OET to T
N
or
OER to R
N
Output Disable Time
(3)
OET to T
N
or
OER to R
N
Conditions
(1)
C
L
= 50 pF
R
L
= 500Ω
C
L
= 300 pF
(3)
R
L
= 500Ω
C
L
= 50 pF
R
L
= 500Ω
C
L
= 300 pF
(3)
R
L
= 500Ω
C
L
= 50 pF
R
L
= 500Ω
C
L
= 5 pF
(3)
R
L
= 500Ω
Min
1.5
1.5
1.5
1.5
1.5
1.5
8.0
15.0
12.0
20.0
9.0
10.0
1.5
1.5
1.5
1.5
1.5
1.5
6.0
13.0
8.0
15.0
6.0
7.0
1.5
1.5
1.5
1.5
1.5
1.5
5.5
11.5
6.8
13.0
5.0
6.0
ns
ns
ns
ns
ns
ns
t
PZH
t
PZL
t
PHZ
t
PLZ
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.
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