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參數(shù)資料
| 型號： | 935264444112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | AVC SERIES, 16 1-BIT TRANSCEIVER, TRUE OUTPUT, PDSO48 |
| 封裝： | 6.10 MM, PLASTIC, MO-153, SOT-362-1, TSSOP-48 |
| 文件頁數(shù)： | 9/16頁 |
| 文件大?。?/td> | 88K |
| 代理商： | 935264444112 |
2000 Mar 07
2
Philips Semiconductors
Product Specication
16-bit transceiver with direction pin; 3.6 V tolerant;
3-state
74AVCH16245
FEATURES
Wide supply voltage range from 1.2 to 3.6 V
Complies with JEDEC standard no. 8-1A/5/7
CMOS low power consumption
Input/output tolerant up to 3.6 V
Dynamic Controlled Output (DCO) circuit dynamically
changes output impedance, resulting in noise reduction
without speed degradation
Low inductance multiple VCC and GND pins to minimize
noise and ground bounce
Supports Live Insertion
All inputs have bus-hold.
DESCRIPTION
The 74AVCH16245 is a 16-bit transceiver featuring
non-inverting 3-state bus compatible outputs in both send
and receive directions. The device features two output
enable inputs (nOE) for easy cascading and two
send/receive inputs (nDIR) for direction control.
Inputs nOE control the outputs so that the buses are
effectively isolated. This device can be used as two 8-bit
transceivers or one 16-bit transceiver.
The 74AVCH16245 is designed to have an extremely fast
propagation delay and a minimum amount of power
consumption.
To ensure the high-impedance output state during
power-up or power-down, pins nOE should be tied to VCC
through a pull-up resistor (Live Insertion).
A Dynamic Controlled Output (DCO) circuitry is
implemented to support termination line drive during
transient (see Figs 1 and 2).
The 74AVCH16245 has active bus-hold circuitry to hold
unused or floating data inputs at a valid logic level. This
feature eliminates the need for external pull-up or
pull-down resistors.
handbook, halfpage
012
4
0
200
300
100
MNA506
3
VOH (V)
IOH
(mA)
1.8 V
2.5 V
3.3 V
Fig.1
Output voltage as a function of the
HIGH-level output current.
handbook, halfpage
012
4
300
100
0
200
MNA507
3
VOL (V)
IOL
(mA)
1.8 V
2.5 V
3.3 V
Fig.2
Output voltage as a function of the
LOW-level output current.
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