21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74FCT153T/253T
(25Ω Series) PI74FCT2153T/2253T
Ω
HIGH SPEED CMOS DUAL 4-INPUT MULTIPLEXER
PI74FCT153T/253T
Ω
(25Ω Series) PI74FCT2153T/2253T
High-Speed CMOS Dual 4-Input Multiplexer
Product Features:
• PI74FCT153T/253T/2153T/2253T is pin compatible with
bipolar FAST™ Series at a higher speed and lower power
consumption
• 25Ω series resistor on all outputs ( FCT2XXX only)
• TTL input and output levels
• Low ground bounce outputs (25Ω series only)
• Extremely low static power
• Hysteresis on all inputs
• Industrial operating temperature range: –40°C to +85°C
• Packages available:
– 16-pin 150 mil wide plastic QSOP (Q)
– 16-pin 300 mil wide plastic SOIC (S)
– 16-pin 150 mil wide plastic SOIC (W)
Product Description:
Pericom Semiconductor’s PI74FCT series of logic circuits are pro-
duced in the Company’s advanced 0.8 micron CMOS technology,
achieving industry leading speed grades. All PI74FCT2XXX devices
have a built-in 25-ohm series resistor on all outputs to reduce noise
resulting from reflections, thus eliminating the need for an external
terminating resistor.
The PI74FCT153T/253T and PI74FCT2153T/2253T are high-
speed dual 4-input multiplexers. The PI74FCT153T/2153T has
TTL outputs, while the PI74FCT253T/2253T has 3-state outputs.
The output buffers are designed with a power-off disable allowing
“live insertion” of boards when used as backplane drivers.
Logic Block Diagram
E
b
E
a
S
1
S
0
I
0a
I
1a
I
2a
I
3a
I
0b
I
1b
I
2b
I
3b
3-State Enable
on 253 Only
O
a
O
b
1
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PI74FCT153T/253T
(25Ω Series) PI74FCT2153T/2253T
Ω
HIGH SPEED CMOS DUAL 4-INPUT MULTIPLEXER
Product Pin Description
Pin Name
I
0a
-I
3a
, I
0b
-I
3b
S
0
, S
1
E
a
, E
b
O
a
, O
b
GND
V
CC
Description
Data Inputs
Select Inputs
Enable Input
Data Outputs
Ground
Power
Truth Table
(1)
Inputs
E
a
H
X
L
L
L
L
E
b
X
H
L
L
L
L
S
1
X
X
L
L
H
H
S
0
X
X
L
H
L
H
Outputs
’153/2153
’253/2253
O
a
O
b
O
a
O
b
L
X
Z
X
X
L
X
Z
I
0a
I
0b
I
0a
I
0b
I
1a
I
1b
I
1a
I
1b
I
2a
I
2b
I
2a
I
2b
I
3a
I
3b
I
3a
I
3b
NOTE:
1. H = High Voltage Level
L = Low Voltage Level
X = Don't Care
Z = High Impedance
Product Pin Configuration
E
a
S
1
I
3a
I
2a
I
1a
I
0a
O
a
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
16-PIN
Q16
S16
W16
V
CC
E
b
S
0
I
3b
I
2b
I
1b
I
0b
O
b
2
PS2009A 03/09/96
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PI74FCT153T/253T
(25Ω Series) PI74FCT2153T/2253T
Ω
HIGH SPEED CMOS DUAL 4-INPUT MULTIPLEXER
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
= 5.0V ± 5%)
Parameters Description
V
OH
V
OL
V
OL
V
IH
V
IL
I
IH
I
IL
I
OZH
I
OZL
V
IK
I
OFF
I
OS
V
H
Output HIGH Voltage
Output LOW Current
Output LOW Current
Input HIGH Voltage
Input LOW Voltage
Input HIGH Current
Input LOW Current
High Impedance
Output Current
Clamp Diode Voltage
Power Down Disable
Short Circuit Current
Input Hysteresis
V
CC
= Min., I
IN
= –18 mA
V
CC
= GND, V
OUT
= 4.5V
V
CC
= Max.
(3)
, V
OUT
= GND
—
–60
Test Conditions
(1)
V
CC
= Min., V
IN
= V
IH
or V
IL
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
= M
AX
.
V
IN
= V
CC
V
IN
= GND
V
OUT
= 2.7V
V
OUT
= 0.5V
–0.7
—
–120
200
I
OH
= –15.0 mA
I
OL
= 48 mA
I
OL
= 12 mA (25Ω Series)
2.0
0.8
1
–1
1
–1
–1.2
100
Min. Typ
(2)
Max. Units
2.4
3.0
0.3
0.3
0.50
0.50
V
V
V
V
V
µA
µA
µA
µA
V
µA
mA
mV
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
PS2009A 03/09/96
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PI74FCT153T/253T
(25Ω Series) PI74FCT2153T/2253T
Ω
HIGH SPEED CMOS DUAL 4-INPUT MULTIPLEXER
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)
Test Conditions
(1)
V
CC
= Max.
V
CC
= Max.
V
CC
= Max.,
Outputs Open
Other inputs at GND
One Bit Toggling
50% Duty Cycle
V
CC
= Max.,
Outputs Open
f
I
= 10 MH
Z
50% Duty Cycle
Other inputs at GND
One Bit Toggling
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
3.2
6.5
(5)
mA
3.5
7.5
(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 = 5.0V, +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.
4
PS2009A 03/09/96
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PI74FCT153T/253T
(25Ω Series) PI74FCT2153T/2253T
Ω
HIGH SPEED CMOS DUAL 4-INPUT MULTIPLEXER
PI74FCT153/2153T Switching Characteristics over Operating Range
153T/2153T
Com.
153AT/2153AT
Com.
Max
Min
Max
Min
153CT/2153CT
Com.
Max
Unit
Parameters
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
Description
Propagation Delay
S
n
to O
Propagation Delay
I
n
to O
Propagation Delay
E to O
Conditions
(1)
C
L
= 50 pF
R
L
= 500Ω
Min
1.5
1.5
1.5
9.0
7.0
7.0
1.5
1.5
1.5
6.6
5.2
5.2
1.5
1.5
1.5
5.6
4.5
4.8
ns
ns
ns
PI74FCT253/2253T Switching Characteristics over Operating Range
253T/2253T
Com.
253AT/2253AT
Com.
Max
Min
Max
Min
253CT/2253CT
Com.
Max
Unit
Parameters
t
PLH
t
PHL
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Description
Propagation Delay
S
n
to O
Propagation Delay
I
n
to O
Output Enable Time
E to O
Output Disable Time
(3)
E to O
Conditions
(1)
C
L
= 50 pF
R
L
= 500Ω
Min
1.5
1.5
1.5
1.5
9.0
7.0
9.0
7.0
1.5
1.5
1.5
1.5
6.6
5.2
6.0
6.0
1.5
1.5
1.5
1.5
5.6
4.5
5.0
5.0
ns
ns
ns
ns
Notes:
1. See test circuit and wave forms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. This parameter guaranteed but not production tested.
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
5
PS2009A 03/09/96
