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參數(shù)資料
| 型號： | AVC16245T |
| 英文描述： | Dual 8-bit Bus Transceiver |
| 中文描述： | 雙8位總線收發(fā)器 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大?。?/td> | 128K |
| 代理商： | AVC16245T |
AVC16245
16 Bit Bus Transceiver with 3-State Outputs
Preliminary
INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST.
MILPITAS, CA 95035. TEL: 408-263-6300. FAX 408-263-6571
http://www.imicorp.com
Rev.1.0
9/5/2000
Page 1 of 11
Product Features
Less than 2 nS maximum propagation delay at
2.5V and 3.3V V
DD
Wide supply voltage range of 1.2V to 3.6 V
Overvoltage-Tolerant Inputs/Outputs allow mixed-
voltage-mode data communications
Output circuitry with dynamic control minimizes
over/undershoot and maximizes output drive
Extended temp range of -40
°
to + 85
°
C
2KV ESD
48 pin TSSOP and TVSOP package availability
Product Description
The AVC16245 is a 16-bit transceiver featuring non-
inverting buffer/line driver with 3-state bus compatible
outputs in both send and receive directions.
This device can be used as two 8-bit transceivers or
one 16-bit transceiver. It allows data transmission
from the A bus to the B bus or from the B bus to the A
bus, depending on the logic level at the direction-
control (DIR) inputs. The output enable (OE) inputs
can be used to disable the device so that the buses
are effectively isolated.
This product is designed to have an extremely low
propagation delay and a minimum amount of power
consumption.
Block Diagram
Product Description (Cont.)
To ensure the high-impedance state during power up
or power down, OE should be tied V
DD
through a
pullup resistor; the minimum value of the resistor is
determined by the current-sinking capability of the OE
driving device.
Output circuitry is dynamically controlled, which,
during output transitions, initially lowers the output
impedance to effectively drive the load and,
subsequently, raises the impedance to reduce noise.
Figure 1 shows typical VOL vs. IOL and VOH vs IOH
curves to illustrate the output impedance and drive
capability of the circuit.
Pin Configuration
1DIR
1A1
1B1
1OE
48
47
1
2
To seven other channels
2DIR
2A1
2B1
2OE
25
36
24
13
To seven other channels
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1DIR
1B1
1B2
V
SS
1B3
1B4
V
DD
1B5
1B6
V
SS
1B7
1B8
2B1
2B2
V
SS
2B3
2B4
V
DD
2B5
2B6
V
SS
2B7
2B8
2DIR
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1OE
1A1
1A2
V
1A3
1A4
V
DD
1A5
1A6
V
SS
1A7
1A8
2A1
2A2
V
SS
2A3
2A4
V
DD
2A5
2A6
V
2A7
2A8
2OE
A
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| AVC20T245 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:20 BIT DUAL SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS |
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