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74ALVCH16245 Datasheet

16-bit transceiver

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74ALVC16245; 74ALVCH16245
16-bit transceiver with direction pin; 3-state
Rev. 03 — 12 May 2004
Product data sheet
1. General description
The 74ALVC16245; 74ALVCH16245 is a 16-bit transceiver featuring non-inverting 3-state
bus compatible outputs in both send and receive directions.
The 74ALVC16245; 74ALVCH16245 features two output enable inputs (pins nOE) for
easy cascading and two send or receive inputs (pins nDIR) for direction control. Pins 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 74ALVCH16245 has an active bushold circuitry which is provided 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.
2. Features
s Wide supply voltage range from 1.2 V to 3.6 V
s Complies with JEDEC standard JESD8-B
s CMOS low power consumption
s MULTIBYTE flow-through standard pin-out architecture
s Low inductance multiple VCC and GND pins for minimize noise and ground bounce
s Direct interface with TTL levels
s All data inputs have bushold (74ALVCH16245 only)
s Output drive capability 50 transmission lines at 85 °C
s Current drive ±24 mA at VCC = 3.0 V.


NXP Semiconductors Electronic Components Datasheet

74ALVCH16245 Datasheet

16-bit transceiver

No Preview Available !

Philips Semiconductors
74ALVC16245; 74ALVCH16245
16-bit bus transceiver with direction pin; 3-state
3. Quick reference data
Table 1: Quick reference data
Symbol Parameter
Conditions
tPHL, tPLH propagation delay
An to Bn; Bn to An
CI input capacitance
CI/O input/output
capacitance
VCC = 2.5 V; CL = 30 pF
VCC = 3.3 V; CL = 50 pF
CPD
power dissipation
outputs enabled
capacitance per buffer outputs disabled
Min Typ Max Unit
- 2.0 - ns
- 1.9 - ns
- 4.0 - pF
- 8.0 - pF
[1] [2] -
[1] [2] -
29 -
5-
pF
pF
[1] CPD is used to determine the dynamic power dissipation (PD in µW).
PD = CPD × VCC2 × fi × N + (CL × VCC2 × fo) where:
fi = input frequency in MHz;
fo = output frequency in MHz;
CL = output load capacitance in pF;
VCC = supply voltage in Volts;
N = total load switching outputs;
(CL × VCC2 × fo) = sum of outputs.
[2] The condition is VI = GND to VCC.
4. Ordering information
Table 2: Ordering information
Type number
Package
Temperature range Name
74ALVC16245DGG 40 °C to +85 °C TSSOP48
74ALVCH16245DGG 40 °C to +85 °C
74ALVC16245DL
40 °C to +85 °C SSOP48
74ALVCH16245DL 40 °C to +85 °C
Description
plastic thin shrink small outline package;
48 leads; body width 6.1 mm
plastic shrink small outline package; 48 leads;
body width 7.5 mm
Version
SOT362-1
SOT370-1
9397 750 13117
Product data sheet
Rev. 03 — 12 May 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
2 of 17


Part Number 74ALVCH16245
Description 16-bit transceiver
Maker NXP
Total Page 17 Pages
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