CDC209, CDC209–7
DUAL 1-LINE TO 4-LINE CLOCK DRIVERS
WITH 3-STATE OUTPUTS
SCAS108D – MARCH 1990 – REVISED MAY 1997
DW OR N PACKAGE
(TOP VIEW)
CDC209 Replaces 74AC11208
CDC209-7 Replaces 74AC11208-7
Low-Skew Propagation Delay
Specifications for Clock-Driver
Applications
1Y2
1Y3
1Y4
GND
GND
GND
GND
2Y1
1Y1
1A
1OE1
1OE2
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
CMOS-Compatible Inputs and Outputs
V
Flow-Through Architecture Optimizes
PCB Layout
CC
V
CC
2A
Characterized for Operation at 5-V and
2OE1
2OE2
2Y4
3.3-V V
CC
2Y2
2Y3
Center-Pin V
and GND Pin
CC
Configurations Minimize High-Speed
Switching Noise
EPIC (Enhanced-Performance Implanted
CMOS) 1-µm Process
500-mA Typical Latch-Up Immunity at 125°C
Package Options Include Plastic
Small-Outline Package (DW) and Standard
Plastic 300-mil DIPs (N)
description
The CDC209/209-7 contains dual clock-driver circuits that fanout one input signal to four outputs with minimum
skew for clock distribution (see Figure 2). The device also offers two output-enable (OE1 and OE2) inputs for
each circuit that can force the outputs to be disabled to a high-impedance state or to a high- or low-logic level
independent of the signal on the respective A input.
Skew parameters are specified for a reduced temperature and voltage range common to many applications.
The CDC209/209-7 is characterized for operation fromT = –40°C to 85°C.
A
FUNCTION TABLES
INPUTS
OUTPUTS
1OE1 1OE2
1A
L
1Y1
L
1Y2
L
1Y3
L
1Y4
L
L
L
L
L
H
X
H
H
H
H
L
H
L
L
L
L
L
H
H
X
H
H
H
H
H
X
Z
Z
Z
Z
INPUTS
OUTPUTS
2OE1 2OE2
2A
L
2Y1
L
2Y2
L
2Y3
L
2Y4
L
L
L
L
L
H
X
H
H
H
H
L
H
L
L
L
L
L
H
H
X
H
H
H
H
H
X
Z
Z
Z
Z
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
EPIC is a trademark of Texas Instruments Incorporated.
Copyright 1997, Texas Instruments Incorporated
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.
1
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