74FCT16260CTPV8 IDT, Integrated Device Technology Inc, 74FCT16260CTPV8 Datasheet - Page 3

• Manufacturer Part Number: 74FCT16260CTPV8
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 74FCT16260CTPV8

• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Package Type: SSOP
• Pin Count: 56
• Mounting: Surface Mount
• Lead Free Status / Rohs Status: Not Compliant

PIN DESCRIPTION
FUNCTION TABLES
NOTES:
1. Output level before the indicated steady-state input conditions were established.
2. H = HIGH Voltage Level
IDT74FCT16260AT/CT/ET
FAST CMOS 12-BIT TRI-PORT BUS EXCHANGER
L = LOW Voltage Level
X = Don't Care
Z = High-Impedance
1B
H
H
H
A
X
X
X
X
X
H
L
L
L
X
X
X
X
X
L
LEA1B
LEA2B
Signal
1B
2B
OE1B
OE2B
A
LE1B
LE2B
OEA
SEL
(1:12)
(1:12)
(1:12)
LEA1B
2B
H
H
H
H
X
X
X
X
H
L
L
L
X
X
X
X
X
L
LEA2B
Inputs
SEL
H
H
H
L
L
L
X
H
H
H
H
L
L
L
X
X
X
X
I/O
I/O
I/O
I/O
I
I
I
I
I
I
I
I
Inputs
LE1B
OE1B
H
H
X
X
X
X
L
H
H
L
L
L
L
L
L
L
L
L
Bidirectional Data Port A. Usually connected to the CPU's Address/Data bus.
Bidirectional Data Port 1B. Connected to the even path or even bank of memory.
Bidirectional Data Port 2B. Connected to the odd path or odd bank of memory.
Latch Enable Input for A-1B Latch. The Latch is open when LEA1B is HIGH. Data from the A-port is latched on the HIGH to
LOW transition of LEA1B.
Latch Enable Input for A-2B Latch. The Latch is open when LEA2B is HIGH. Data from the A-Port is latched on the HIGH to
LOW transition of LEA2B.
Latch Enable Input for the 1B-A Latch. The Latch is open when LE1B is HIGH. Data from the 1B port is latched on the HIGH
Latch Enable Input for the 2B-A Latch. The Latch is open when LE2B is HIGH. Data from the 2B port is latched on the HIGH
1B or 2B Path Selection. When HIGH, SEL enables data transfer from 1B Port to A Port. When LOW, SEL enables data
transfer from 2B Port to A Port.
Output Enable for A Port (Active LOW)
Output Enable for 1B Port (Active LOW)
Output Enable for 2B Port (Active LOW)
to LOW transition of LE1B.
to LOW transition of LE2B.
(1)
LE2B
OE2B
H
H
X
X
X
X
L
H
H
L
L
L
L
L
L
L
L
L
OEA
Active
Active
H
L
L
L
L
L
L
B
B
B
1B
H
H
L
L
Z
Z
(1)
(1)
(1)
Outputs
Output
A
A
Active
Active
H
H
A
L
L
Z
(1)
(1)
B
B
B
2B
H
H
L
L
Z
Z
(1)
(1)
(1)
3
Description
INDUSTRIAL TEMPERATURE RANGE