PI74FCT16245T
PI74FCT162245T
Fast CMOS 16-Bit Bidirectional Tranceivers
4
PS2032G 08/02/05
Notes:
1. For Max. or Min. conditions, use appropriate value specied under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 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.
Capacitance (TA = 25°C, f = 1 MHz)
Parameters
(4)
Description Test Conditions Typ. Max. Units
C
IN
Input Capacitance V
IN
= 0V 4.5 6
pF
C
OUT
Output Capacitance V
OUT
= 0V 5.5 8
Power Supply Characteristics
Parameters Description
Test Conditions
(1)
Min.
Typ.
(2)
Max. Units
I
CC
Quiescent Power
Supply Current
V
CC
= Max.
V
IN
= GND or
V
CC
0.1 500 µA
ΔI
CC
Supply Current per
Input @ TTL HIGH
V
CC
= Max. V
IN
= 3.4V
(3)
0.5 1.5 mA
I
CCD
Supply Current per
Input per MHz
(4)
V
CC
= Max.,
Outputs Open
XOE = xDIR = GND
One Bit Toggling
50% Duty Cycle
V
IN
= V
CC,
V
IN
= GND
60 100
µA/
MHz
I
C
Total Power Supply
Current
(6)
V
CC
= Max.,
Outputs Open
fI = 10 MHZ
50% Duty Cycle
XOE = xDIR = GND
One Bit Toggling
V
IN
= V
CC,
V
IN
= GND
0.7 2.5
(5)
mA
V
IN
= 3.4V 0.9
3.3
(5)
V
CC
= Max.,
Outputs Open
fI = 2.5 MHZ
50% Duty Cycle
XOE = xDIR = GND
16 Bits Toggling
V
IN
= V
CC,
V
IN
= GND
2.5 5.5
(5)
V
IN
= 3.4V 6.5
17.5
(5)
Notes:
1. For Max. or Min. conditions, use appropriate value specied under Electrical Characteristics for the applicable device.
2. Typical values are at V
CC
= 5.0V, +25°C ambient.
3. Per TTL driven input (V
IN
= 3.4V); all other inputs at V
CC
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 I
CC
formula. These limits are guaranteed but not tested.
6. I
C
=I
QUIESCENT
+ I
INPUTS
+ I
DYNAMIC
I
C
= I
CC
+ ΔI
CC
DHNT + I
CCD
(fCP/2 + fINI)
I
CC
= Quiescent Current
ΔI
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)
fCP = 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.
