IDT74FST163211 Integrated Device Technology, IDT74FST163211 Datasheet - Page 4

• Manufacturer Part Number: IDT74FST163211
• Description: 24-bit Bus Switch
• Manufacturer: Integrated Device Technology

SWITCHING CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: T
POWER SUPPLY CHARACTERISTICS
NOTES:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type. T
2. Typical values are at V
3. Per TTL driven input (V
4. This parameter represents the current required to switch the internal capacitance of the control inputs at the specified frequency.
5. C
6. I
NOTES:
1. See test circuits and waveforms.
2. The bus switch contributes no Propagation Delay other than the RC Delay of the load interacting with the RC of the switch.
3. |Q
IDT74FST163211
24-BIT BUS SWITCH
Symbol
Symbol
Switch inputs generate no significant power supply currents as they transition. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
C
I
I
I
D
N
I
f
N = Number of Control Inputs Toggling at f
the multiplexed port switches from one path to another. Charge injection is reduced because the injection from the DISCONNECT of the first path is compensated by
the CONNECT of the second path.
C
C
CC
CCD
i
PD
PD
H
T
|Q
I
= Control Input Frequency
I
CC
= I
= I
t
t
t
t
t
t
CCD
CI
PZH
PHZ
PLH
PHL
PZL
PLZ
I
= Number of TTL Inputs at D
= Duty Cycle for TTL Inputs High
C
= Quiescent Current
CC
CI
| is the charge injection for a single switch DISCONNECT and applies to either single switches or multiplexers. |Q
= I
= Power Dissipation Capacitance
QUIESCENT
CC
= Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
= Power Supply Current for a TTL High Input (V
|
CCD
+ I
A
/V
CC
CC
= -40°C to +85°C, V
Quiescent Power Supply Current
TTL Inputs HIGH
Dynamic Power Supply
Current
Total Power Supply Current
Description
Data Propagation Delay
A to B, B to A
Switch CONNECT Delay
xOE to A or B
Switch DISCONNECT Delay
xOE to A or B
Charge Injection During Switch DISCONNECT
xOE to A or B
+ I
D
H
INPUTS
N
T
+ I
(4,5)
CC
+ I
CCD
IN
= 3.4V). All other inputs at V
DYNAMIC
= 5.0V, +25°C ambient.
Parameter
(1)
(f
(2)
i
N)
(3)
H
CC
= 5.0V ± 10%
i
(6)
IN
CC
= 3.4V)
V
V
V
One Enable Pin Toggling
50% Duty Cycle
V
One Enable Pin Toggling
f
50% Duty Cycle
V
Two Enable Pins Toggling
f
50% Duty Cycle
i
i
or GND. Switch inputs do not contribute to I
IN
CC
CC
CC
CC
= 10MHz
= 10MHz
= 3.4V
= Max.
= Max.
= Max.
= Max.
(3)
Test Conditions
4
Min.
1.5
1.5
—
—
V
V
V
V
V
V
V
V
V
V
(1)
V
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
CC
= V
= V
= V
= 3.4V
= 3.4V
= GND
= GND
= GND
= GND
= GND
= 5V ± 10%
CC
CC
CC
Typ.
CC.
1.5
—
—
—
Max.
0.25
6.5
5.5
—
INDUSTRIAL TEMPERATURE RANGE
DCI
| is the charge injection for a multiplexer as
Min.
—
—
—
—
—
—
A
Typ.
= –40°C to +85°C
240
0.5
2.4
2.7
4.8
5.4
V
CC
Max.
(2)
0.25
—
7
7
= 4V
Max.
320
1.5
3.2
6.4
4
8
Switch
MHz/
Unit
µ A/
mA
mA
Unit
pC
ns
ns
ns