SN100KT5574 Datasheet, PDF (1/7 Pages) Texas Instruments – OCTAL ECL-TO-TTL TRANSLATOR WITH D-TYPE EDGE-TRIGGERED FLIP-FLOPS AND 3-STATE OUTPUTS

SN100KT5574
OCTAL ECLĆTOĆTTL TRANSLATOR WITH DĆTYPE
EDGEĆTRIGGERED FLIPĆFLOPS AND 3ĆSTATE OUTPUTS
SDZS009 − D3418, JANUARY 1990
• 100K Compatible
• ECL Clock and TTL Control Inputs
DW OR NT PACKAGE
(TOP VIEW)
• 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”
1Q ₁
2Q ₂
3Q ₃
4Q ₄
V_{CC 5}
GND ₆
24 ^1D
23 ^2D
22 ^3D
21 ^4D
20 ^OE(TTL)
19 ^V_EE
Packages and Standard Plastic DIPs
GND 7
18 GND
description
GND 8
5Q 9
17 CLK(ECL)
16 5D
This octal ECL-to-TTL translator is designed to
provide efficient translation between a 100K ECL
signal environment and a TTL signal environment.
6Q 10
7Q 11
8Q 12
15 6D
14 7D
13 8D
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.
The eight flip-flops of the SN100KT5574 are edge-triggered D-type flip-flops. On the positive transition of the
clock, the Q outputs are set to the logic levels that were set up at the D inputs.
A buffered output-enable input (OE) can be used to place the eight outputs in either a normal logic state (high
or low logic levels) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive
the bus lines significantly. The high-impedance third state and increased drive provide the capability to drive
bus lines without need for interface or pullup components.
The output-enable input OE does not affect the internal operations of the flip-flops. Old data can be retained
or new data can be entered while the outputs are off.
The SN100KT5574 is characterized for operation from 0°C to 85°C.
FUNCTION TABLE
INPUTS
OUTPUT
(TTL)
OE CLK D
Q
L
↑L
L
L
↑H
H
L
LX
Qo
H XX
Z
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.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright  1990, Texas Instruments Incorporated
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