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74ALVCH16240 Datasheet

Low-Voltage 16-Bit Buffer

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74ALVCH16240
Low−Voltage 16−Bit Buffer
with Bus Hold 1.8/2.5/3.3 V
(3State, Inverting)
The 74ALVCH16240 is an advanced performance, inverting 16bit
buffer. It is designed for very highspeed, very lowpower operation
in 1.8 V, 2.5 V or 3.3 V systems.
The 74ALVCH16240 is nibble controlled with each nibble
functioning identically, but independently. The control pins may be
tied together to obtain full 16bit operation. The 3state outputs are
controlled by an Output Enable (OEn) input for each nibble. When
OEn is LOW, the outputs are on. When OEn is HIGH, the outputs are
in the high impedance state. The data inputs include active bushold
circuitry, eliminating the need for external pullup resistors to hold
unused or floating inputs at a valid logic state.
Designed for Low Voltage Operation: VCC = 1.65 to 3.6 V
3.6 V Tolerant Inputs and Outputs
HighSpeed Operation: 3.0 ns Max for 3.0 to 3.6 V
3.7 ns Max for 2.3 to 2.7 V
6.0 ns Max for 1.65 to 1.95 V
Static Drive: ±24 mA Drive at 3.0 V
±12 mA Drive at 2.3 V
±4 mA Drive at 1.65 V
Supports Live Insertion and Withdrawal
Includes Active BusHold to Hold Unused or Floating Inputs at a
Valid Logic State
IOFF Specification Guarantees High Impedance When VCC = 0 V
Near Zero Static Supply Current in All Three Logic States (40 mA)
Substantially Reduces System Power Requirements
Latchup Performance Exceeds ±250 mA @ 125°C
ESD Performance: Human Body Model >2000V; Machine Model >200V
Second Source to Industry Standard 74ALVCH16240
†To ensure the outputs activate in the 3state condition, the output enable pins
should be connected to VCC through a pullup resistor. The value of the resistor is
determined by the current sinking capability of the output connected to the OE pin.
http://onsemi.com
MARKING DIAGRAM
48
48
1
TSSOP48
DT SUFFIX
CASE 1201
74ALVCH16240DT
AWLYYWW
1
A = Assembly
Location
WL = Wafer Lot
YY = Year
WW = Work Week
ORDERING INFORMATION
Device
74ALVCH16240DTR
Package
TSSOP
Shipping
2500 / Reel
© Semiconductor Components Industries, LLC, 2006
June, 2006 Rev. 3
1
Publication Order Number:
74ALVCH16240/D


  ON Semiconductor Electronic Components Datasheet  

74ALVCH16240 Datasheet

Low-Voltage 16-Bit Buffer

No Preview Available !

74ALVCH16240
OE1 1
O0 2
O1 3
GND 4
O2 5
O3 6
VCC 7
O4 8
O5 9
GND 10
O6 11
O7 12
O8 13
O9 14
GND 15
O10 16
O11 17
VCC 18
O12 19
O13 20
GND 21
O14 22
O15 23
OE4 24
48 OE2
47 D0
46 D1
45 GND
44 D2
43 D3
42 VCC
41 D4
40 D5
39 GND
38 D6
37 D7
36 D8
35 D9
34 GND
33 D10
32 D11
31 VCC
30 D12
29 D13
28 GND
27 D14
26 D15
25 OE3
Figure 1. 48Lead Pinout
(Top View)
PIN NAMES
Pins
Function
OEn
D0D15
O0O15
Output Enable Inputs
Inputs
Outputs
OE1 1
OE2 48
OE3 25
OE4 24
D0:3
D4:7
O0:3 D8:11
O8:11
O4:7 D12:15
O12:15
One of Four
Figure 2. Logic Diagram
OE1
OE2
OE3
OE4
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
1
48
25
24
47
46
44
43
41
40
38
37
36
35
33
32
30
29
27
26
EN1
EN2
EN3
EN4
1 1
1 2
1 3
1 4
2
3
5
6
8
9
11
12
13
14
16
17
19
20
22
23
O0
O1
O2
O3
O4
O5
O6
O7
O8
O9
O10
O11
O12
O13
O14
O15
Figure 3. IEC Logic Diagram
OE1
L
L
H
D0:3
L
H
X
O0:3
H
L
Z
OE2
L
L
H
D4:7
L
H
X
O4:7
H
L
Z
H = High Voltage Level
L = Low Voltage Level
Z = High Impedance State
X = High or Low Voltage Level and Transitions Are Acceptable
For ICC reasons, DO NOT FLOAT Inputs.
OE3
L
L
H
D8:11
L
H
X
O8:11
H
L
Z
http://onsemi.com
2
OE4
L
L
H
D12:15
L
H
X
O12:15
H
L
Z


Part Number 74ALVCH16240
Description Low-Voltage 16-Bit Buffer
Maker ON Semiconductor
Total Page 10 Pages
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