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74ALVCH16601;
18-bit universal bus
transceiver (3-State)
Information as of 2001-11-09
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74ALVCH16601; 18-bit
universal bus transceiver
(3-State)
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General Description Features Applications Datasheet
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Description
The 74ALVCH16601 is an 18-bit universal transceiver featuring non-inverting 3-State bus compatible outputs in both send and
receive directions. Data flow in each direction is controlled by output enable (OEAB and OEBA)latch enable (LEAB and LEBA )
, and clock (CPAB and CPBA) inputs. For A-to-B data flowthe device operates in the transparent mode when LEAB is High.
When LEAB is Low, the A data is latched if CPAB is held at a High or Low logic level. If LEAB is Low, the A-bus data is
stored in the latch/flip-flop on the Low-to-High transition of CPAB. When OEAB is Low, the outputs are active. When OEAB is
High, the outputs are in the high-impedance state. The clocks can be controlled with the clock-enable inputs (CEBA /CEAB).
Data flow for B-to-A is similar to that of A-to-B but uses OEBALEBA and CPBA.
To ensure the high impedance state during power up or power down, OEBA and OEAB should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking/current-sourcing capability of the driver.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
Philips Semiconductors; 74ALVCH16601; 18-bit universal bus transceiver (3-State)
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Features
Complies with JEDEC standard no. 8-1A●
CMOS low power consumption●
Direct interface with TTL levels●
MULTIBYTE flow-through standard pin-out architecture●
Low inductance multiple VCC and ground pins for minimum noise and ground bounce●
Current drive ± 24 mA at 3.0 V●
All inputs have bus hold circuitry●
Output drive capability 50Ω transmission lines @ 85°C●
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Applications
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Ground And VCC Bounce Of High-Speed Integrated Circuits (date 01-Jan-93)
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Interfacing 3 Volt and 5 Volt Applications
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Live Insertion Aspects of Philips Logic Families (date 22-Jul-99)
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Hardware and software verification procedure (date 07-Oct-98)
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Datasheet
Type number Title Publication release
date Datasheet status Page
count File size
(kB) Datasheet
74ALVCH16601 18-bit universal bus
transceiver
(3-State)
24-Sep-98 Product Specification 12 96
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Philips Semiconductors; 74ALVCH16601; 18-bit universal bus transceiver (3-State)
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Products, packages, availability and ordering
Type number North American Type
number Order code
(12nc) marking/packing
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IC packing info package device status buy online
74ALVCH16601DGG 74ALVCH16601DG 9352 625 46112 Standard Marking
* Tube SOT364-1
(TSSOP56) Full production
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product online
-
74ALVCH16601DG-T 9352 625 46118 Standard Marking
* Reel Pack,
SMD, 13"
SOT364-1
(TSSOP56) Full production
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product online
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Support & tools
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CMOS 16-bit microcontroller family(date 01-May-98)
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Philips Semiconductors; 74ALVCH16601; 18-bit universal bus transceiver (3-State)
file:///G|/imaging/BITTING/mail_pdf/cpl_rework/74alvch16601dgg.html (3 of 3) [1/9/2002 11:47:18 AM]