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SN100KT5541
OCTAL ECL TO TTL TRANSLATOR
WITH 3 STATE OUTPUTS
•
•
•
•
•
•
100K Compatible
ECL and TTL Control Inputs
Noninverting Outputs
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
Y1
Y2
Y3
Y4
V
CC
GND
GND
GND
Y5
Y6
Y7
Y8
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
DW OR NT PACKAGE
(T0P VIEW)
SDZS004A − NOVEMBER 1989 − REVISED MAY 1990
A1
A2
A3
A4
OE2 (TTL)
V
EE
GND
OE1 (ECL)
A5
A6
A7
A8
description
This octal ECL-to-TTL translator is designed to
provide a efficient translation between a 100K
ECL signal environment to 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.
Two output-enable pins, OE1 and OE2 are
provided. These control inputs are ANDed
together with OE1 being ECL compatible and OE2
being TTL compatible. This offers the choice of
controlling the outputs of the device from either a
TTL or ECL signal environment.
The SN100KT5541 is characterized for operation
from 0°C to 85°C.
FUNCTION TABLE
OUTPUT
ENABLE
OE1
X
H
L
L
OE2
H
X
L
L
DATA
INPUT
A
X
X
L
H
OUTPUT
(TTL)
Y
Z
Z
L
H
logic symbol
†
OE1
OE2
17
20
1 Y1
2
Y2
3
Y3
4
Y4
9
Y5
10
Y6
11
Y7
12
Y8
ECL/TTL &
EN
A1 24
23
A2
22
A3
21
A4
16
A5
15
A6
14
A7
13
A8
ECL/TTL
† This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.
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
POST OFFICE BOX 655303
POST OFFICE BOX 1443
•
HOUSTON, TEXAS 77251−1443
•
DALLAS, TEXAS 75265
1
SDZS004A − NOVEMBER 1989 − REVISED MAY 1990
SN100KT5541
OCTAL ECL TO TTL TRANSLATOR
WITH 3 STATE OUTPUTS
logic diagram (positive logic)
A1
24
ECL/TTL
1
Y1
A2
23
ECL/TTL
2
Y2
A3
22
ECL/TTL
3
Y3
A4
21
ECL/TTL
4
Y4
OE1 (ECL)
OE2 (TTL)
17
20
ECL/TTL
A5
16
ECL/TTL
9
Y5
A6
15
ECL/TTL
10
Y6
A7
14
ECL/TTL
11 Y7
12
A8
13
ECL/TTL
Y8
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443
•
•
SN100KT5541
OCTAL ECL TO TTL TRANSLATOR
WITH 3 STATE OUTPUTS
SDZS004A − NOVEMBER 1989 − REVISED MAY 1990
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage range, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
Supply voltage range, V
EE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −8 V to 0 V
Input voltage range (TTL) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −1.2 V to 7 V
Input voltage range (ECL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
EE
to 0 V
Voltage applied to any output in the high state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to V
CC
Voltage applied to any output in the disabled or power-off state . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 5.5 V
Input current range (TTL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −30 mA to 5 mA
Current into any output in the low state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA
Operating free-air temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 85°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The TTL input voltage ratings may be exceeded provided the input current ratings are observed.
recommended operating conditions
MIN
VCC
VEE
VIH
VIL
VIH
VIL
IIK
IOH
TTL supply voltage
ECL supply voltage
TTL high-level input voltage
TTL low-level input voltage
ECL high-level input voltage‡
ECL low-level input voltage‡
TTL input clamp current
High-level output current
−1150
−1810
4.5
−4.2
2
0.8
−840
−1490
−18
−15
NOM
5
−4.5
MAX
5.5
−4.8
UNIT
V
V
V
V
mV
mV
mA
mA
IOL
Low-level output current
48
mA
TA
Operating free-air temperature
0
85
°C
‡ The algebraic convention, in which the least positive (most negative) value is designated minimum, is used in this data sheet for logic levels only.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443
•
•
3
SDZS004A − NOVEMBER 1989 − REVISED MAY 1990
SN100KT5541
OCTAL ECL TO TTL TRANSLATOR
WITH 3 STATE OUTPUTS
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
VIK
II
IIH
IIL
IIH
IIL
VOH
VOL
IOZH
IOZL
IOS‡
ICCH
ICCL
ICCZ
IEE
Ci
OE2 only
OE2 only
OE2 only
OE2 only
Data inputs and OE1
Data inputs and OE1
VCC = 4.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5 V,
VCC = 5 V,
TEST CONDITIONS
VEE = − 4.2 V,
VEE = − 4.8 V,
VEE = − 4.8 V,
VEE = − 4.8 V,
VEE = − 4.8 V,
VEE = − 4.8 V,
VEE = − 4.5 V
±
0.3 V,
VEE = − 4.5 V
±
0.3 V,
VEE = − 4.5 V
±
0.3 V,
VEE = − 4.8 V,
VEE = − 4.8 V,
VEE = − 4.8 V,
VEE = − 4.8 V
VEE = − 4.8 V
VEE = − 4.8 V
VEE = − 4.8 V
VEE = 4.5 V
VEE = 4.5 V
II = − 18 mA
VI = 7 V
VI = 2.7 V
VI = 0.5 V
VIH = − 840 mV
VIL = − 1810 mV
IOH = − 3 mA
IOH = − 15 mA
IOL = 48 mA
VO = 2.7 V
VO = 0.5 V
VO = 0 V
−100
64
80
77
−22
5
7
0.50
2.4
2
3.3
3.1
0.38
0.55
50
−50
−225
97
120
116
−33
MIN
TYP†
MAX
−1.2
0.1
20
−0.5
350
UNIT
V
mA
µA
mA
µA
µA
V
V
µA
µA
mA
mA
mA
mA
mA
pF
pF
Co
† All typical values are at VCC = 5 V, VEE = − 4.5 V, TA = 25°C.
‡ Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (see Figure 1)
CL = 50 pF,
FROM
PARAMETER
(INPUT)
TO
(OUTPUT)
R1 = 500
Ω,
R2 = 500
Ω
MIN TYP§
MAX
1.7
1.6
2.6
3.2
2.9
1.9
OE2
OE2
Y
Y
1.7
2.5
2.1
1.1
4
4
4.7
5.9
5.4
4.9
4
5.1
4.3
3.7
6.2
6.2
6.7
8.5
7.8
7.8
6.2
7.7
6.4
6.3
ns
ns
UNIT
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tPZH
tPZL
tPHZ
tPLZ
A
OE1
OE1
Y
Y
Y
ns
ns
ns
§ All typical values are at VCC = 5 V, VEE = − 4.5 V, TA = 25°C.
4
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443
•
•
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