54F253DMQB Datasheet, PDF (1/7 Pages) Integrated Device Technology – FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVER

IDT54/74FCT245/A/C
FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
FAST CMOS OCTAL
BIDIRECTIONAL
TRANSCEIVER
IDT54/74FCT245/A/C
FEATURES:
− IDT54/74FCT245 equivalent to FAST™ speed
− IDT54/74FCT245A 25% faster than FAST
− IDT54/74FCT245C 40% faster than FAST
− TTL input and output level compatible
− CMOS output level compatible
− IOL = 64mA (commercial) and 48mA (military)
− Input current levels only 5µA max.
− CMOS power levels (2.5mW typ. static)
− Direction control and over-riding 3-state control
− Military product compliant to MIL-STD-883, Class B and DESC
listed
− Meets or exceeds JEDEC Standard 18 specifications
− Available in the following packages:
• Commercial: SOIC
• Military: CERDIP, LCC, CERPACK
DESCRIPTION:
The IDT octal bidirectional transceivers are built using an advanced dual
metal CMOS technology. The FCT245 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.
The FCT245 transceivers have non-inverting outputs.
FUNCTIONAL BLOCK DIAGRAM
T/R ¹
2
A0
3
A1
4
A2
5
A3
6
A4
7
A5
8
A6
A7 ⁹
MILITARY AND COMMERCIAL TEMPERATURE RANGES
1
c 2001 Integrated Device Technology, Inc.
19
OE
18 _B0
17
B1
16
B2
15
B3
14
B4
13
B5
12
B6
11
B7
JUNE 2001
DSC-5421/-