DS3884A BTL Handshake Transceiver
August 2000
DS3884A
BTL Handshake Transceiver
General Description
The DS3884A is one in a series of transceivers designed
specifically for the implementation of high performance Fu-
turebus+ and proprietary bus interfaces. The DS3884A is a
BTL 6-bit Handshake Transceiver designed to conform to
IEEE 1194.1 (Backplane Transceiver Logic 鈥?BTL) as speci-
fied in the IEEE 896.2 Futurebus+ specification.
n
n
n
n
n
n
n
Glitch free power-up/down protection
Typically less than 5 pF bus-port capacitance
Low Bus-port voltage swing (typically 1V) at 80 mA
TTL compatible driver and control inputs
Separate TTL I/O
Open collector bus-port outputs allow Wired-OR
connection
Controlled rise and fall time to reduce noise coupling to
adjacent lines
Built in Bandgap reference with separate QV
CC
and
QGND pins for precise receiver thresholds
Exceeds 2 kV ESD testing (Human Body Model)
Individual Bus-port ground pins
Product offered in PQFP package styles
Features
Fast propagation delay (3 ns typ)
6-bit BTL transceiver
Selective receiver glitch filtering (FR1鈥揊R3)
Meets 1194.1 Standard on Backplane Transceiver Logic
(BTL)
n
Supports live insertion
n
n
n
n
n
n
n
n
Connection Diagram
DS011460-1
Order Number DS3884AVF
See NS Package VF44B
TRI-STATE
廬
is a registered trademark of National Semiconductor Corporation.
漏 2000 National Semiconductor Corporation
DS011460
www.national.com