BIDIRECTIONAL TRANSCEIVER. 74FCT2245CT Datasheet

74FCT2245CT TRANSCEIVER. Datasheet pdf. Equivalent


Part 74FCT2245CT
Description FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVER
Feature IDT74FCT2245AT/CT FASTCMOSOCTALBIDIRECTIONALTRANSCEIVER FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVER I.
Manufacture IDT
Datasheet
Download 74FCT2245CT Datasheet


IDT74FCT2245AT/CT FASTCMOSOCTALBIDIRECTIONALTRANSCEIVER FAST 74FCT2245CT Datasheet
Recommendation Recommendation Datasheet 74FCT2245CT Datasheet




74FCT2245CT
IDT74FCT2245AT/CT
FASTCMOSOCTALBIDIRECTIONALTRANSCEIVER
FAST CMOS OCTAL
BIDIRECTIONAL
TRANSCEIVER
INDUSTRIALTEMPERATURERANGE
IDT74FCT2245AT/CT
FEATURES:
• 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.)
• Meets or exceeds JEDEC standard 18 specifications
• Resistor outputs -15mA IOH, 12mA IOL
• Reduced system switching noise
• Available in SOIC and QSOP packages
DESCRIPTION:
The IDT octal bidirectional transceivers are built using an advanced dual
metal CMOS technology. The FCT2245T 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 trans-
ceiver. 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.
The FCT2245T has balanced drive outputs with current limiting resistors.
This offers low ground bounce, minimal undershoot and controlled output
fall times- reducing the need for external series terminating resistors. The
FCT2245T parts are plug-in replacements for FCT245T parts.
FUNCTIONAL BLOCK DIAGRAM
T/R
A0
A1
A2
A3
A4
A5
A6
A7
IDT and the IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
© 2016 Integrated Device Technology, Inc.
1
OE
B0
B1
B2
B3
B4
B5
B6
B7
APRIL 2016
DSC-5511/8



74FCT2245CT
IDT74FCT2245AT/CT
FASTCMOSOCTALBIDIRECTIONALTRANSCEIVER
PIN CONFIGURATION
T/R
A0
A1
A2
A3
A4
A5
A6
A7
GND
1
2
3
4
5
6
7
8
9
10
20 VCC
19 OE
18 B0
17 B1
16 B2
15 B3
14 B4
13 B5
12 B6
11 B7
SOIC/ QSOP
TOP VIEW
INDUSTRIALTEMPERATURERANGE
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Description
Max Unit
VTERM(2)
VTERM(3)
TSTG
IOUT
Terminal Voltage with Respect to GND
Terminal Voltage with Respect to GND
Storage Temperature
DC Output Current
–0.5 to +7
–0.5 to VCC+0.5
–65 to +150
–60 to +120
V
V
°C
mA
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.
CAPACITANCE (TA = +25°C, F = 1.0MHz)
Symbol
Parameter(1)
Conditions Typ. Max. Unit
CIN Input Capacitance VIN = 0V 6 10 pF
COUT
Output Capacitance VOUT = 0V
8
12 pF
NOTE:
1. This parameter is measured at characterization but not tested.
PIN DESCRIPTION
Pin Names
OE
T/R
A0 - A7
B0 - B7
Description
Output Enable Input (Active LOW)
Transmit/Receive Input
Side A Inputs or 3-State Outputs
Side BInputs or 3-State Outputs
FUNCTION TABLE(1)
Inputs
OE T/R
LL
LH
HX
NOTE:
1. H = HIGH Voltage Level
X = Don’t Care
L = LOW Voltage Level
Outputs
Bus B Data to Bus A
Bus A Data to Bus B
High Z State
2







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