IDT IDTQS74FCT253ATS1 High-speed cmos dual 4-input multiplexer Datasheet

IDTQS74FCT253AT
HIGH-SPEED CMOS DUAL 4-INPUT MULTIPLEXER
INDUSTRIAL TEMPERATURE RANGE
HIGH-SPEED CMOS
DUAL 4-INPUT
MULTIPLEXER
DESCRIPTION:
FEATURES:
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IDTQS74FCT253AT
The IDTQS74FCT253AT is a high-speed CMOS TTL-compatible dual
4-input multiplexer with 3-state outputs. All inputs have clamp diodes for
undershoot noise suppression. All outputs have ground bounce suppression. Outputs will not load an active bus when Vcc is removed from the
device.
CMOS power levels: <7.5mW static
Undershoot clamp diodes on all inputs
True TTL input and output compatibility
Ground bounce controlled outputs
Reduced output swing of 0 to 3.5V
IOL = 48mA
Available in SOIC, QSOP, and S1 packages
FUNCTIONAL BLOCK DIAGRAM
EB
EA
S1
S0
I0A
I1A
I2A
YA
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
I3A
I0B
I1B
I2B
I3B
YB
MARCH 2001
1
© 2001 Integrated Device Technology, Inc.
DSC-5873/1
IDTQS74FCT253AT
HIGH-SPEED CMOS DUAL 4-INPUT MULTIPLEXER
INDUSTRIAL TEMPERATURE RANGE
ABSOLUTE MAXIMUM RATINGS(1)
PIN CONFIGURATION
Symbol
Description
Max
Unit
VTERM
Terminal Voltage with Respect to GND
–0.5 to +7
V
TSTG
Storage Temperature
–65 to +150
°C
16
VCC
IOUT
DC Output Current Max Current Sink/Pin
+120
mA
2
IIK
Input Diode Current, VIN < 0
-20
mA
15
EB
IOK
DC Output Current, VOUT < 0
-50
mA
I3A
3
14
S0
I2A
4
13
I3B
I1A
5
12
I2B
I0A
6
11
I1B
YA
7
10
I0B
GND
8
9
YB
EA
S1
1
NOTE:
1. Stresses greater than those listed under ABSOLUTE 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.
CAPACITANCE (TA = +25°C, F = 1.0MHz)
Parameter(1)
Symbol
Conditions
Typ.
Max.
CIN
Input Capacitance
VIN = 0V
4
—
pF
COUT
Output Capacitance
VOUT = 0V
8
—
pF
NOTE:
1. This parameter is measured at characterization but not tested.
SOIC/ QSOP/ S1
TOP VIEW
PIN DESCRIPTION
Pin Names
I/O
Description
Ix
I
Data In
Sx
I
Select
EA, EB
I
Enable
YA, YB
0
Data Out
FUNCTION TABLE(1)
Enable
Select
Outputs
EB
S0
S1
H
X
X
X
H
X
L
L
L
L
L
L
L
L
EA
YA
YB
Function
X
Z
Z
Disable A
X
X
Z
Disable B
L
L
I0 A
I0 B
S 1- 0 = 0
L
H
I1 A
I1 B
S 1- 0 = 1
H
L
I2 A
I2 B
S 1- 0 = 2
H
H
I3 A
I3 B
S 1- 0 = 3
NOTE:
1. H = HIGH Voltage Level
X = Don’t Care
L = LOW Voltage Level
Z = High-Impedance
2
Unit
IDTQS74FCT253AT
HIGH-SPEED CMOS DUAL 4-INPUT MULTIPLEXER
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: TA = –40°C to +85°C, VCC = 5.0V ±5%
Symbol
Test Conditions(1)
Parameter
Min.
Typ.(2)
Max.
Unit
VIH
Input HIGH Level
Guaranteed Logic HIGH Level
2
—
—
V
VIL
Input LOW Level
Guaranteed Logic LOW Level
—
—
0.8
V
∆VT
Input Hysteresis
VTLH - VTHL for all inputs
IIH
Input HIGH Current
VCC = Max.
IIL
Input LOW Current
IOZ
Off-State Output Current (Hi-Z)
VCC = Max.
IOS
Short Circuit Current
VCC = Max., VOUT =
—
0.2
—
V
0 ≤ VIN ≤ VCC
—
—
±5
µA
0 ≤ VIN ≤ VCC
—
—
±5
µA
-60
—
—
mA
GND(2)
VIC
Input Clamp Voltage
VCC = Min., IIN = –18mA, TA = 25°C
—
–0.7
–1.2
V
VOH
Output HIGH Voltage
VCC = Min.
IOH = –15mA
2.4
—
—
V
VOL
Output LOW Voltage
VCC = Min.
IOL = 12mA
—
—
0.5
V
Min.
Max.
Unit
—
1.5
mA
NOTES:
1. Typical values are at VCC = 5.0V, +25°C ambient.
2. This parameter is guaranteed but not tested
POWER SUPPLY CHARACTERISTICS
Symbol
Parameter
ICC
Quiescent Power Supply Current
Test Conditions(1)
VCC = Max.
freq = 0
0V ≤ VIN ≤ 0.2V or
VCC - 0.2V ≤ VIN ≤ VCC
∆ICC
Supply Current per Input TTL Inputs HIGH
VCC = Max.
VIN = 3.4V(2)
freq = 0
—
2
mA
ICCD
Supply Current per Input per MHz
VCC = Max.
Outputs Open and Enabled
One Bit Toggling
50% Duty Cycle
—
0.25
mA/
MHz
Other inputs at GND or VCC(3,4)
NOTES:
1. For conditions shown as Min. or Max., use appropriate value specified under DC Electrical Characteristics.
2. Per TTL driven input (VIN = 3.4V).
3. For flip-flops, ICCD is measured by switching one of the data input pins so that the output changes every clock cycle. This is a measurement of device power consumption
only and does not include power to drive load capacitance or tester capacitance.
4. 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 Output Transition Pair (HLH or LHL)
fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices)
fi = Output Frequency
Ni = Number of Outputs at fi
All currents are in milliamps and all frequencies are in megahertz.
3
IDTQS74FCT253AT
HIGH-SPEED CMOS DUAL 4-INPUT MULTIPLEXER
INDUSTRIAL TEMPERATURE RANGE
SWITCHING CHARACTERISTICS OVER OPERATING RANGE(1)
Symbol
tIY
Parameter
Min.
Max.
Unit
Propagation Delay
1.5
5.2
ns
1.5
6.6
ns
1.5
6
ns
1.5
6
ns
Ix to Y
tSY
Propagation Delay
Sx to Y
tPZH
Output Enable Time
tPZL
E to Y
tPHZ
Output Disable Time
tPLZ
E to Y
NOTES:
1. CLOAD = 50pF, RLOAD = 500Ω unless otherwise noted.
2. Minimums guaranteed but not tested.
3. This parameter is guaranteed by design but not tested.
4
IDTQS74FCT253AT
HIGH-SPEED CMOS DUAL 4-INPUT MULTIPLEXER
INDUSTRIAL TEMPERATURE RANGE
TEST CIRCUITS AND WAVEFORMS
VCC
SWITCH POSITION
7.0V
500Ω
Pulse
Generator
VOUT
VIN
D.U.T.
50pF
RT
500Ω
Test
Switch
Open Drain
Disable Low
Enable Low
Closed
All Other Tests
Open
DEFINITIONS:
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
CL
FCTL link
Test Circuits for All Outputs
DATA
INPUT
tH
tSU
TIMING
INPUT
ASYNCHRONOUS CONTROL
PRESET
CLEAR
ETC.
SYNCHRONOUS CONTROL
PRESET
CLEAR
CLOCK ENABLE
ETC.
3V
1.5V
0V
3V
1.5V
0V
tREM
tSU
LOW-HIGH-LOW
PULSE
1.5V
tW
3V
1.5V
0V
HIGH-LOW-HIGH
PULSE
3V
1.5V
0V
tH
1.5V
FCTL link
Pulse Width
FCTL link
Set-Up, Hold, and Release Times
ENABLE
SAME PHASE
INPUT TRANSITION
tPLH
tPHL
OUTPUT
tPLH
OPPOSITE PHASE
INPUT TRANSITION
tPHL
3V
1.5V
0V
DISABLE
3V
1.5V
CONTROL
INPUT
OUTPUT
NORMALLY
LOW
3V
1.5V
0V
OUTPUT
NORMALLY
HIGH
FCTL link
SWITCH
CLOSED
tPZH
SWITCH
OPEN
0V
tPLZ
tPZL
VOH
1.5V
VOL
3.5V
3.5V
1.5V
0.3V
VOL
tPHZ
0.3V
VOH
1.5V
0V
0V
FCTL link
Propagation Delay
Enable and Disable Times
NOTES:
1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
2. Pulse Generator for All Pulses: Rate ≤ 1.0MHz; tF ≤ 2.5ns; tR ≤ 2.5ns.
5
IDTQS74FCT253AT
HIGH-SPEED CMOS DUAL 4-INPUT MULTIPLEXER
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
FCT
XX
IDTQS
XX
XXXX
Device Type Package
Temp. Range
CORPORATE HEADQUARTERS
2975 Stender Way
Santa Clara, CA 95054
SO
Q
S1
Small Outline IC (gull wing)
Quarter Size Small Outline Package
Small Outline IC (gull wing)
253AT
High-Speed CMOS Dual 4-Input Multiplexer
74
–40°C to +85°C
for SALES:
800-345-7015 or 408-727-6116
fax: 408-492-8674
www.idt.com
6
for Tech Support:
[email protected]
(408) 654-6459
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