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Integrated Device Technology Electronic Components Datasheet

IDT74FCT16841AT Datasheet

FAST CMOS 20-BIT TRANSPARENT LATCHES

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Integrated Device Technology, Inc.
FAST CMOS 20-BIT
TRANSPARENT
LATCHES
IDT54/74FCT16841AT/BT/CT/ET
IDT54/74FCT162841AT/BT/CT/ET
FEATURES:
• Common features:
– 0.5 MICRON CMOS Technology
– High-speed, low-power CMOS replacement for
ABT functions
Typical tSK(o) (Output Skew) < 250ps
– Low input and output leakage 1µA (max.)
– ESD > 2000V per MIL-STD-883, Method 3015;
> 200V using machine model (C = 200pF, R = 0)
– Packages include 25 mil pitch SSOP, 19.6 mil pitch
TSSOP, 15.7 mil pitch TVSOP and 25 mil pitch Cerpack
– Extended commercial range of -40°C to +85°C
– VCC = 5V ±10%
• Features for FCT16841AT/BT/CT/ET:
– High drive outputs (-32mA IOH, 64mA IOL)
– Power off disable outputs permit “live insertion”
– Typical VOLP (Output Ground Bounce) < 1.0V at
VCC = 5V, TA = 25°C
• Features for FCT162841AT/BT/CT/ET:
– Balanced Output Drivers: ±24mA (commercial),
±16mA (military)
– Reduced system switching noise
– Typical VOLP (Output Ground Bounce) < 0.6V at
VCC = 5V,TA = 25°C
DESCRIPTION:
The FCT16841AT/BT/CT/ET and FCT162841AT/BT/CT/
ET 20-bit transparent D-type latches are built using advanced
dual metal CMOS technology. These high-speed, low-power
latches are ideal for temporary storage of data. They can be
used for implementing memory address latches, I/O ports,
and bus drivers. The Output Enable and Latch Enable controls
are organized to operate each device as two 10-bit latches or
one 20-bit latch. Flow-through organization of signal pins
simplifies layout. All inputs are designed with hysteresis for
improved noise margin.
The FCT16841AT/BT/CT/ET are ideally suited for driving
high-capacitance loads and low-impedance backplanes. The
output buffers are designed with power off disable capability
to allow "live insertion" of boards when used as backplane
drivers.
The FCT162841AT/BT/CT/ET have balanced output drive
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
FCT162841AT/BT/CT/ET are plug-in replacements for the
FCT16841AT/BT/CT/ET and ABT16841 for on-board inter-
face applications.
FUNCTIONAL BLOCK DIAGRAM
1OE
1LE
1D1
D
C
2OE
2LE
2D1
1Q1
D
C
2Q1
TO 9 OTHER CHANNELS
2556 drw 01
TO 9 OTHER CHANNELS
2556 drw 02
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
©1996 Integrated Device Technology, Inc.
5.18
JULY 1996
DSC-2556/7
1


Integrated Device Technology Electronic Components Datasheet

IDT74FCT16841AT Datasheet

FAST CMOS 20-BIT TRANSPARENT LATCHES

No Preview Available !

IDT54/74FCT16841AT/BT/CT/ET, 162841AT/BT/CT/ET
FAST CMOS 20-BIT TRANSPARENT LATCHES
PIN CONFIGURATIONS
1OE
1Q1
1Q2
GND
1Q3
1Q4
VCC
1Q5
1Q6
1Q7
GND
1Q8
1Q9
1Q10
2Q1
2Q2
2Q3
GND
2Q4
2Q5
2Q6
VCC
2Q7
2Q8
GND
2Q9
2Q10
2OE
1 56
2 55
3 54
4 53
5 52
6 51
7 50
8 49
9 48
10 47
11 46
12 45
13 44
14 SO56-1 43
SO56-2
15 SO56-3 42
16 41
17 40
18 39
19 38
20 37
21 36
22 35
23 34
24 33
25 32
26 31
27 30
28 29
SSOP/
TSSOP/TVSOP
TOP VIEW
1LE
1D1
1D2
GND
1D3
1D4
VCC
1D5
1D6
1D7
GND
1D8
1D9
1D10
2D1
2D2
2D3
GND
2D4
2D5
2D6
VCC
2D7
2D8
GND
2D9
2D10
2LE
2556 drw 03
1OE
1Q1
1Q2
GND
1Q3
1Q4
VCC
1Q5
1Q6
1Q7
GND
1Q8
1Q9
1Q10
2Q1
2Q2
2Q3
GND
2Q4
2Q5
2Q6
VCC
2Q7
2Q8
GND
2Q9
2Q10
2OE
MILITARY AND COMMERCIAL TEMPERATURE RANGES
1 56
2 55
3 54
4 53
5 52
6 51
7 50
8 49
9 48
10 47
11 46
12 45
13 44
14 E56-1 43
15 42
16 41
17 40
18 39
19 38
20 37
21 36
22 35
23 34
24 33
25 32
26 31
27 30
28 29
CERPACK
TOP VIEW
1LE
1D1
1D2
GND
1D3
1D4
VCC
1D5
1D6
1D7
GND
1D8
1D9
1D10
2D1
2D2
2D3
GND
2D4
2D5
2D6
VCC
2D7
2D8
GND
2D9
2D10
2LE
2556 drw 04
5.18 2


Part Number IDT74FCT16841AT
Description FAST CMOS 20-BIT TRANSPARENT LATCHES
Maker IDT
Total Page 9 Pages
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