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参数资料
| 型号： | 74LVT640DB-T |
| 英文描述： | Single 8-Bit Inverting Bus Transceiver |
| 中文描述： | 单8位反向总线收发器 |
| 文件页数： | 2/10页 |
| 文件大小： | 80K |
| 代理商： | 74LVT640DB-T |
Philips Semiconductors
Product specification
74LVT162240A
3.3V 16-bit inverting buffer/driver with 30
termination resistors (3-State)
2
1998 Feb 19
853-1777 18990
FEATURES
16-bit bus interface
3-State buffers
Output capability: +12mA/-12mA
TTL input and output switching levels
Input and output interface capability to systems at 5V supply
Bus-hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs
Live insertion/extraction permitted
Outputs include series resistance of 30
making external
termination resistors unnecessary
Power-up 3-State
No bus current loading when output is tied to 5V bus
Latch-up protection exceeds 500mA per JEDEC Std 17
ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model
Same part as 74LVT16240A-1
DESCRIPTION
The 74LVT162240A is a high-performance BiCMOS product
designed for V
CC
operation at 3.3V.
This device is an inverting 16-bit buffer that is ideal for driving bus
lines. The device features four Output Enables (1OE, 2OE, 3OE,
4OE), each controlling four of the 3-State outputs.
The 74LVT162240A is designed with 30
series resistance in both
the pull-up and pull-down output structures. This design reduces line
noise in applications such as memory address drivers, clock drivers,
and bus receivers/transmitters.
The 74LVT162240A is the same as the 74LVT16240A-1. The part
number has been changed to reflect industry standards.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
T
amb
= 25
°
C
TYPICAL
UNIT
t
PLH
t
PHL
C
IN
C
OUT
I
CCZ
Propagation delay
nAx to nYx
Input capacitance nOE
Output capacitance
Total supply current
C
L
= 50pF;
V
CC
= 3.3V
V
I
= 0V or 3.0V
V
O
= 0V or 3.0V
Outputs disabled; V
CC
= 3.6V
2.6
ns
3
9
70
pF
pF
μ
A
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
DWG NUMBER
48-Pin Plastic SSOP Type III
–40
°
C to +85
°
C
–40
°
C to +85
°
C
74LVT162240A DL
VT162240A DL
SOT370-1
48-Pin Plastic TSSOP Type II
74LVT162240A DGG
VT162240A DGG
SOT362-1
LOGIC SYMBOL
1OE
1
1A0
47
1A1
46
1A2
44
1A3
43
2OE
48
2A0
41
2A1
2
40
2A2
38
3
2A3
37
5
6
1Y0
1Y1
1Y2
1Y3
2Y0
2Y1
2Y2
2Y3
8
9
11
12
3OE
25
3A0
36
3A1
35
3A2
33
3A3
32
4OE
24
4A0
30
4A1
13
29
4A2
27
14
4A3
26
16
17
3Y0
3Y1
3Y2
3Y3
4Y0
4Y1
4Y2
4Y3
19
20
22
23
SW00004
PIN DESCRIPTION
PIN NUMBER
SYMBOL
NAME AND FUNCTION
47, 46, 44, 43,
41, 40, 38, 37,
36, 35, 33, 32,
30, 29, 27, 26
1A0 - 1A3
2A0 - 2A3
3A0 - 3A3
4A0 - 4A3
Data inputs
2, 3, 5, 6,
8, 9, 11, 12,
13, 14, 16, 17,
19, 20, 22, 23
1Y0 - 1Y3
2Y0 - 2Y3
3Y0 - 3Y3
4Y0 - 4Y3
Data outputs
1, 48
25, 24
1OE, 2OE,
3OE, 4OE
Output enables
4, 10, 15, 21,
28, 34, 39, 45
GND
Ground (0V)
7, 18, 31, 42
V
CC
Positive supply voltage
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