SN10KHT5574 Datasheet, PDF (1/7 Pages) Texas Instruments – OCTAL ECL-TO-TTL TRANSLATOR WITH D-TYPE EDGE-TRIGGERED FLIP-FLOPS AND 3-STATE OUTPUTS

SN10KHT5574
OCTAL ECL-TO-TTL TRANSLATOR WITH D-TYPE
EDGE-TRIGGERED FLIP-FLOPS AND 3-STATE OUTPUTS
SDZS010 – JANUARY 1990 – REVISED OCTOBER 1990
• 10KH Compatible
DW OR NT PACKAGE
(TOP VIEW)
• ECL Clock 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 DIPs
1Q ₁
2Q ₂
3Q ₃
4Q ₄
V_{CC 5}
GND ₆
GND 7
GND 8
5Q 9
24 ^1D
23 ^2D
22 ^3D
21 ^4D
20 ^OE(TTL)
19 ^V_EE
18 ^GND
17 CLK(ECL)
16 5D
description
6Q 10
7Q 11
15 6D
14 7D
This octal ECL-to-TTL translator is designed to
8Q 12 13 8D
provide efficient translation between a 10KH ECL
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.
The eight flip-flops of the SN10KHT5574 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 SN10KHT5574 is characterized for operation from 0°C to 75°C.
FUNCTION TABLE
INPUTS
OE CLK D
OUTPUT
(TTL)
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.
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Copyright © 1990, Texas Instruments Incorporated
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