SN100KT5538 Datasheet, PDF (1/5 Pages) Texas Instruments – OCTAL ECL-TO-TTL TRANSLATOR WITH OPEN-COLLECTOR OUTPUTS

• 100K Compatible
• Open-Collector Outputs Drive Bus Lines or
Buffer Memory Address Registers
• ECL and TTL Control Inputs
• Flow-Through Architecture Optimizes PCB
Layout
• Center-Pin V_CC, V_EE, and GND
Configurations Minimize High-Speed
Switching Noise
• Package Options Include “Small Outline”
Packages and Standard Plastic 300-mil
DIPs
description
This octal ECL-to-TTL translator is designed to
provide efficient translation between a 100K
signal environment and a TTL signal environment.
This device is designed specifically to improve the
performance and density of ECL-to-TTL CPU/bus
oriented functions such as memory address
drivers, clock drivers, and bus-oriented receivers
and transmitters while eliminating the need for
three-state overlap protection.
Two output enables, OE1 and OE2, are provided.
These enable inputs are ANDed together with
OE1 being ECL-compatible and OE2 being
TTL-compatible. This offers the choice of controll-
ing the outputs of the device from either a TTL or
ECL signal environment.
The SN100KT5538 is characterized for operation
from 0°C to 85°C.
SN100KT5538
OCTAL ECLĆTOĆTTL TRANSLATOR
WITH OPENĆCOLLECTOR OUTPUTS
SDZS011 − APRIL 1990
OR NT PACKAGE
(T0P VIEW)
Y1 ₁
Y2 ₂
Y3 ₃
Y4 ₄
V_{CC 5}
GND ₆
GND 7
GND 8
Y5 9
Y6 10
Y7 11
Y8 12
24 ^A1
23 ^A2
22 ^A3
21 ^A4
20 ^{OE2 (TTL)}
19 ^V_EE
18 GND
17 OE1 (ECL)
16 A5
15 A6
14 A7
13 A8
logic symbol^†
17
OE1
20
OE2
24
A1
23
A2
22
A3
21
A4
16
A5
15
A6
14
A7
13
A8
ECL/TTL
&
EN
ECL/TTL
1
Y1
2
Y2
3
Y3
4
Y4
9
Y5
10
Y6
11
Y7
12
Y8
† _{This symbol is in accordance with ANSI/IEEE Std 91-1984 and}
IEC Publication 617-12.
FUNCTION TABLE
OUTPUT
ENABLE
OE1 OE2
HX
XH
L
L
L
L
DATA
INPUT
A
X
X
L
H
OUTPUT
(TTL)
Y
H
H
H
L
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright  1990, Texas Instruments Incorporated
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