74FCT3245QG8 IDT, 74FCT3245QG8 Datasheet - Page 4

• Manufacturer Part Number: 74FCT3245QG8
• Description: Bus Transceivers
• Manufacturer: IDT

Specifications of 74FCT3245QG8

• Rohs: yes
• Part # Aliases: IDT74FCT3245QG8

NOTES:
1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
3. Per TTL driven input. All other inputs at V
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 ΔI
6. I
NOTES:
1. Propagation Delays and Enable/Disable times are with V
2. See test circuit and waveforms.
3. Minimum limits are guaranteed but not tested on Propagation Delays.
4. This parameter is guaranteed but not tested.
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
POWER SUPPLY CHARACTERISTICS
IDT74FCT3245/A
3.3V CMOS OCTAL BIDIRECTIONAL TRANSCEIVER
Symbol
t
t
t
t
t
t
t
t
t
t
PLH
PHL
PZH
PZL
PHZ
PLZ
PZH
PZL
PHZ
PLZ
I
I
ΔI
D
N
I
f
N
fi = Input Frequency
Ni = Number of Inputs at fi
Disable times should be degraded by 20%.
Symbol
C
C
CC
CCD
CP
H
T
CP
CC
I
= I
= I
I
CCD
= Number of TTL Inputs at D
CC
I
= Duty Cycle for TTL Inputs High
= Quiescent Current (I
= Clock Frequency for register devices (zero for non-register devices)
C
= Number of clock inputs at f
QUIESCENT
= Dynamic Current caused by an Input Transition Pair (HLH or LHL)
CC
= Power Supply Current for a TTL High Input
+ ΔI
Propagation Delay
A to B, B to A
Output Enable Time
OE to A or B
Output Disable Time
OE to A or B
Output Enable Time
DIR to A or B
Output Disable Time
DIR to A or B
CC
Quiescent Power Supply Current
Dynamic Power Supply
Current
Total Power Supply Current
+ I
D
Parameter
H
INPUTS
N
T
+ I
(4)
CC
+ I
CCD
(4)
(4)
CC
DYNAMIC
= 3.3V, +25°C ambient.
Parameter
, I
(f
CP
CCH
H
N
CP
CP
, and I
/2 + fiNi)
CCZ
CC
)
(6)
or GND.
CC
formula. These limits are guaranteed but not tested.
CC
Condition
R
C
V
V
Outputs Open
OE = DIR = GND
One Input Toggling
50% Duty Cycle
V
Outputs Open
f
50% Duty Cycle
OE = DIR = GND
One Bit Toggling
V
Outputs Open
f
50% Duty Cycle
OE = DIR = GND
Eight Bits Toggling
I
I
L
L
CC
CC
CC
CC
= 3.3V ±0.3V, Normal Range. For V
= 10MHz
= 2.5MHz
= 500Ω
= 50pF
= Max.
= Max.
= Max.
= Max.
(2)
Test Conditions
4
Min.
1.5
1.5
1.5
1.5
1.5
(3)
V
V
V
V
V
V
V
V
V
V
V
74FCT3245
(1)
CC
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
= V
= V
= V
= V
= GND
= GND
= V
= GND
= V
= 2.7V to 3.6V, Extended Range, all Propagation Delays and Enable/
= GND
= GND
CC
CC
CC
CC
CC
CC
- 0.6V
- 0.6V
- 0.6V
Max.
9.5
7.5
9.5
7.5
7
INDUSTRIAL TEMPERATURE RANGE
Min.
—
—
—
—
—
—
(1)
Min.
1.5
1.5
1.5
1.5
1.5
(3)
Typ.
74FCT3245A
0.6
0.6
1.2
1.2
60
2
(2)
Max.
1.7
1.8
0.9
0.9
30
85
Max.
4.6
6.2
6.2
(5)
(5)
5
5
MHz
Unit
μA/
mA
μA
Unit
ns
ns
ns
ns
ns