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74FCT245CTQG

P1-P3P4-P6P7-P7
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
IDT54/74FCT245T/AT/CT
FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVER
1
DECEMBER 2016MILITARY AND INDUSTRIAL TEMPERATURE RANGES
IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc.
FEATURES:
• Std., A, and C grades
• Low input and output leakage
≤≤
≤≤
≤1µA (max.)
• CMOS power levels
• True TTL input and output compatibility:
–VOH = 3.3V (typ.)
–VOL = 0.3V (typ.)
• High Drive outputs (-15mA IOH, 64mA IOL)
• Meets or exceeds JEDEC standard 18 specifications
• Military product compliant to MIL-STD-883, Class B and DESC
listed (dual marked)
• Power off disable outputs permit "live insertion"
• Available in the following packages:
– Industrial: SOIC, SSOP, QSOP, TSSOP
– Military: CERDIP, LCC
FUNCTIONAL BLOCK DIAGRAM
IDT54/74FCT245T/AT/CTFAST CMOS OCTAL
BIDIRECTIONAL
TRANSCEIVER
DESCRIPTION:
The IDT octal bidirectional transceivers are built using an advanced dual
metal CMOS technology. The FCT245T is designed for asynchronous two-
way communication between data buses. The transmit/receive (T/R) input
determines the direction of data flow through the bidirectional transceiver.
Transmit (active high) enables data from A ports to B ports, and receive
(active low) from B ports to A ports. The output enable (OE) input, when
high, disables both A and B ports by placing them in high Z condition.
A
B
0
0
T/R
OE
A
B
1
1
A
B
2
2
A
B
3
3
A
B
4
4
A
B
5
5
A
B
6
6
A
B
7
7
DSC-5510/7
©
2016 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
2
IDT54/74FCT245T/AT/CT
FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVER
PIN CONFIGURATION
Symbol Description Max Unit
VTERM
(2)
Terminal Voltage with Respect to GND –0.5 to +7 V
VTERM
(3)
Terminal Voltage with Respect to GND –0.5 to VCC+0.5 V
TSTG Storage Temperature –65 to +150 °C
I
OUT DC Output Current –60 to +120 mA
ABSOLUTE MAXIMUM RATINGS
(1)
NOTES:
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. No terminal voltage may exceed
Vcc by +0.5V unless otherwise noted.
2. Inputs and Vcc terminals only.
3. Output and I/O terminals only.
Pin Names Description
OE Output Enable Inputs (Active LOW)
T/R Transmit/Recieve Input
A0 - A7 Side A Inputs or 3-State Outputs
B
0 - B7 Side B Inputs or 3-State Outputs
PIN DESCRIPTION
Symbol Parameter
(1)
Conditions Typ. Max. Unit
CIN Input Capacitance VIN = 0V 6 10 pF
C
OUT Output Capacitance VOUT = 0V 8 12 pF
CAPACITANCE (TA = +25°C, F = 1.0MHz)
NOTE:
1. This parameter is measured at characterization but not tested.
NOTE:
1. H = HIGH Voltage Level
X = Don’t Care
L = LOW Voltage Level
Z = High Impedance
FUNCTION TABLE
(1)
Inputs
OE T/R Outputs
L L Bus B Data to Bus A
L H Bus A Data to Bus B
H X High Z State
CERDIP/ SOIC/ SSOP/ QSOP/ TSSOP
TOP VIEW
2
3
1
16
15
14
11
19
18
20
17
13
12
5
6
7
4
8
9
10
A
2
A
0
A
1
V
CC
A
3
A
6
A
4
A
5
A
7
GND
OE
B
2
B
0
B
1
B
3
B
6
B
4
B
5
B
7
T/R
1
23
4
5
7
9
6
8
10 11 12 13
14
15
16
17
18
1920
B
2
B
0
B
1
B
3
B
4
A
1
A
0
A
7
GND
B
7
B
6
B
5
T/R
V
CC
OE
INDEX
A
2
A
3
A
6
A
4
A
5
LCC
TOP VIEW
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
IDT54/74FCT245T/AT/CT
FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVER
3
Symbol Parameter Test Conditions
(1)
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
IIH Input HIGH Current
(4)
VCC = Max. VI = 2.7V — — ±1µA
IIL Input LOW Current
(4)
VCC = Max. VI = 0.5V — — ±1µA
I
OZH High Impedance Output Current VCC = Max VO = 2.7V — — ±1µA
IOZL (3-State output pins)
(4)
VO = 0.5V — — ±1
II Input HIGH Current
(4)
VCC = Max., VI = VCC (Max.) — — ±1µA
VIK Clamp Diode Voltage VCC = Min, IIN = -18mA — –0.7 –1.2 V
VH Input Hysteresis — — 200 — mV
I
CC Quiescent Power Supply Current VCC = Max., VIN = GND or VCC — 0.01 1 mA
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: TA = –40°C to +85°C, VCC = 5.0V ±5%; Military: TA = –55°C to +125°C, VCC = 5.0V ±10%
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 VCC = 5.0V, +25°C ambient.
3. Not more than one output should be tested at one time. Duration of the test should not exceed one second.
4. The test limit for this parameter is ±5µA at TA = –55°C.
Symbol Parameter Test Conditions
(1)
Min. Typ.
(2)
Max. Unit
V
OH Output HIGH Voltage VCC = Min IOH = –6mA MIL 2.4 3.3 —
VIN = VIH or VIL IOH = –8mA IND V
I
OH = –12mA MIL 2 3 —
IOH = –15mA IND
VOL Output LOW Voltage VCC = Min IOL = 48mA MIL — 0.3 0.55 V
VIN = VIH or VIL IOL = 64mA IND
IOS Short Circuit Current VCC = Max., VO = GND
(3)
–60 –120 –225 mA
OUTPUT DRIVE CHARACTERISTICS
P1-P3P4-P6P7-P7

74FCT245CTQG

Mfr. #:
Buy 74FCT245CTQG
Manufacturer:
IDT
Description:
Bus Transceivers Octal Bidirectional Transceiver
Lifecycle:
New from this manufacturer.
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