SN100KT5578 Datasheet, PDF (1/7 Pages) Texas Instruments – OCTAL TTL-TO-ECL TRANSLATOR WITH D-TYPE EDGE-TRIGGERED FLIP-FLOPS AND OUTPUT ENABLE

SN100KT5578
OCTAL TTL-TO-ECL TRANSLATOR WITH D-TYPE
EDGE-TRIGGERED FLIP-FLOPS AND OUTPUT ENABLE
SDZS13A – APRIL 1990 – REVISED OCTOBER 1990
• 100K Compatible
• TTL Clock and ECL 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 DIPs
• ESD Protection Exceeds 2000 V Per
MIL-STD-883C, Method 3015
DW OR NT PACKAGE
(T0P VIEW)
1Q ₁
2Q ₂
3Q ₃
4Q ₄
GND ₅
GND ₆
GND ₇
GND 8
5Q 9
6Q 10
7Q 11
8Q 12
24 ^1D
23 ^2D
22 ^3D
21 ^4D
20 ^OE(ECL)
19 ^V_CC
18 ^V_EE
17 CLK(TTL)
16 5D
15 6D
14 7D
13 8D
description
This octal TTL-to-ECL translator is designed to
provide efficient translation between a TTL signal
environment and a 100K ECL signal environment.
This device is designed specifically to improve the
performance and density of TTL-to-ECL CPU/
bus-oriented functions such as memory-
address drivers,clock drivers, and bus-oriented
receivers and transmitters.
The eight flip-flops of the ’5578 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.
The output-control 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 SN100KT5578 is characterized for operation
from 0°C to 85°C.
Function Table
INPUTS
OE CLK D
L ↑L
L ↑H
L LX
H XX
OUTPUT
(ECL)
Q
L
H
Q0
L
logic symbol^†
CLK ¹⁷
OE ²⁰
TTL/ECL C1
EN
24
1D
2D ²³
22
3D
21
4D
5D ¹⁶
6D ¹⁵
14
7D
8D ¹³
1D TTL/ECL
1
1Q
2
2Q
3
3Q
4
4Q
9
5Q
10
6Q
11
7Q
12
8Q
† _{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.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 1990, Texas Instruments Incorporated
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