Order this document
from Logic Marketing
SEMICONDUCTOR TECHNICAL DATA
&-&$*! #*
%#, ()$ +) (%) #, (
#*" &$ (%* %'+*) % +*'+*)
** &%%, (*#%!
The MC74LCX16500 is a high performance, non–inverting 18–bit
universal bus transceiver operating from a 2.7 to 3.6V supply. The device
is “byte+1” controlled. Each “byte+1” has separate control inputs which
can be tied together for full 18–bit operation. High impedance TTL
compatible inputs significantly reduce current loading to input drivers
while TTL compatible outputs offer improved switching noise
performance. A VI specification of 5.5V allows MC74LCX16500 inputs to
be safely driven from 5V devices. The MC74LCX16500 is suitable for
memory address driving and all TTL level bus oriented transceiver
applications.
LOW–VOLTAGE CMOS
18–BIT UNIVSERAL BUS
TRANSCEIVER
DT SUFFIX
PLASTIC TSSOP PACKAGE
CASE 1202–01
Data flow in each direction is controlled by Output Enable (OEAB,
OEBA), Latch Enable (LEAB, LEBA) and Clock inputs (CAB, CBA). When
LEAB is HIGH, the A–to–B dataflow is transparent. When LEAB is LOW,
and CAB is held at LOW or HIGH, the data A is latched; on the
HIGH–to–LOW transition of CAB the A–data is stored in the
latch/flip–flop. The outputs are active when OEAB is HIGH. When OEAB
is LOW the B–outputs are in 3–state. Similarly, the LEBA, OEBA and CBA
control the B–to–A dataflow. Please note that the output enables are
complementary; OEAB is active HIGH, OEBA is active LOW.
OEAB 1
56 GND
LEAB 2
55 CAB
A0 3
GND 4
53 GND
A1 5
52 B1
A2 6
51 B2
VCC 7
•
•
•
•
•
•
•
•
54 B0
50 VCC
Designed for 2.7 to 3.6V VCC Operation
A3 8
49 B3
5V Tolerant — Interface Capability With 5V TTL Logic
A4 9
48 B4
Supports Live Insertion and Withdrawal
A5 10
47 B5
GND 11
IOFF Specification Guarantees High Impedance When VCC = 0V
LVTTL Compatible
46 GND
A6 12
45 B6
LVCMOS Compatible
A7 13
44 B7
24mA Balanced Output Sink and Source Capability
A8 14
43 B8
Near Zero Static Supply Current in All Three Logic States (10µA)
Substantially Reduces System Power Requirements
A9 15
42 B9
A10 16
41 B10
A11 17
40 B11
GND 18
39 GND
A12 19
38 B12
A13 20
37 B13
• Latchup Performance Exceeds 500mA
• ESD Performance: Human Body Model >2000V; Machine Model >200V
This document contains information on a product under development. Motorola reserves the right to
change or discontinue this product without notice.
9/95
 Motorola, Inc. 1995
1
REV 0
A14 21
36 B14
VCC 22
35 VCC
A15 23
34 B15
A16 24
33 B16
GND 25
32 GND
A17 26
31 B17
OEBA 27
30 CBA
LEBA 28
29 GND
MC74LCX16500
OUTLINE DIMENSIONS
DT SUFFIX
PLASTIC TSSOP PACKAGE
CASE 1202–01
ISSUE A
56X
0.12 (0.005)
M
T U
S
V
S
T U
S
J J1
29
0.254 (0.010)
M
56
SECTION N–N
B
–U–
L
ÉÉÉ
ÇÇÇ
ÇÇÇ
ÉÉÉ
ÇÇÇ
ÉÉÉ
ÇÇÇ
ÉÉÉ
K
K1
K REF
1
N
28
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD FLASH, PROTRUSIONS OR GATE
BURRS. MOLD FLASH OR GATE BURRS
SHALL NOT EXCEED 0.15 (0.006) PER SIDE.
4. DIMENSION K DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.08 (0.003) TOTAL
IN EXCESS OF THE K DIMENSION AT
MAXIMUM MATERIAL CONDITION.
5. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
6. DIMENSIONS A AND B ARE TO BE
DETERMINED AT DATUM PLANE –W–.
A
–V–
PIN 1
IDENT.
N
F
DETAIL E
D
C
0.25 (0.010)
–W–
0.076 (0.003)
–T– SEATING
PLANE
M
DETAIL E
DIM
A
B
C
D
F
G
H
J
J1
K
K1
L
M
MILLIMETERS
MIN
MAX
13.90
14.10
6.00
6.20
–––
1.10
0.05
0.15
0.50
0.75
0.50 BSC
0.12
–––
0.09
0.20
0.09
0.16
0.17
0.27
0.17
0.23
7.95
8.25
0_
8_
INCHES
MIN
MAX
0.547
0.555
0.236
0.244
–––
0.043
0.002
0.006
0.020
0.030
0.0197 BSC
0.005
–––
0.004
0.008
0.004
0.006
0.007
0.011
0.007
0.009
0.313
0.325
0_
8_
H
G
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit,
and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different
applications. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does
not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in
systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of
the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such
unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless
against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part.
Motorola and
are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.
How to reach us:
USA/EUROPE: Motorola Literature Distribution;
P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447
JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, Toshikatsu Otsuki,
6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–3521–8315
MFAX: RMFAX0@email.sps.mot.com –TOUCHTONE (602) 244–6609
INTERNET: http://Design–NET.com
HONG KONG: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park,
51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298
◊
MOTOROLA
CODELINE
2
*MC74LCX16500/D*
MC74LCX16500/D
LCX DATA
BR1339 — REV 2