•Outputs include series resistance of 30 making external
termination resistors unnecessary
•20-bit positive-edge triggered register
•5V I/O Compatible
•Multiple V
and GND pins minimize switching noise
CC
•Live insertion/extraction permitted
•Power-up reset
•Power-up 3-State
•Output capability +12mA/-12mA
•Latch-up protection exceeds 500mA per Jedec Std 17
•ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model
•Bus hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs
DESCRIPTION
The 74ALVT162821 high-performance BiCMOS device combines
low static and dynamic power dissipation with high speed and high
output drive. It is designed for V
compatibility to 5V .
The 74ALVT162821 has two 10-bit, edge triggered registers, with
each register coupled to a 3-State output buffer. The two sections of
each register are controlled independently by the clock (nCP) and
Output Enable (nOE
Each register is fully edge triggered. The state of each D input, one
set-up time before the Low-to-High clock transition, is transferred to
the corresponding flip-flop’s Q output.
The 3-State output buffers are designed to drive heavily loaded
3-State buses, MOS memories, or MOS microprocessors.
The active Low Output Enable (nOE
independent of the register operation. When nOE
the register appears at the outputs. When nOE
are in high impedance “off” state, which means they will neither drive
nor load the bus.
The 74ALVT162821 is designed with 30 series resistance in both
High and Low output stages. This design reduces the line noise in
applications such as memory address drivers, clock drivers and bus
receivers/transmitters. The series termination resistors reduce
overshoot and undershoot and are ideal for driving memory arrays.
CC
) control gates.
74AL VT162821
operation at 2.5V or 3.3V with I/O
) controls all ten 3-State buffers
is Low, the data in
is High, the outputs
QUICK REFERENCE DATA
TYPICAL
2.5V3.3V
4.4
3.8
33pF
99pF
3.2
3.2
C
t
PLH
t
PHL
C
OUT
I
CCZ
CONDITIONS
T
= 25°C
amb
Propagation delay
nCP to nQ
IN
Input capacitanceVI = 0V or V
Output capacitanceVO = 0 or V
Total supply currentOutputs disabled4070µA
CL = 50pF
CC
CC
ORDERING INFORMATION
PACKAGESTEMPERATURE RANGE OUTSIDE NORTH AMERICANORTH AMERICADWG NUMBER
56-Pin Plastic SSOP Type III–40°C to +85°C74ALVT162821 DLAV162821 DLSOT371-1
56-Pin Plastic TSSOP Type II–40°C to +85°C74ALVT162821 DGGAV162821 DGGSOT364-1
DC supply voltage–0.5 to +4.6V
DC input diode currentVI < 0–50mA
DC input voltage
DC output diode currentVO < 0–50mA
DC output voltage
PARAMETERCONDITIONSRATINGUNIT
3
3
1, 2
Output in Off or High state–0.5 to +7.0V
74ALVT162821
–1.2 to +7.0V
Output in Low state128
OUT
T
stg
p
Output in High state–64
Storage temperature range–65 to 150°C
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability .
2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction
temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C.
3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
RECOMMENDED OPERATING CONDITIONS
2.5V RANGE LIMITS3.3V RANGE LIMITS
MINMAXMINMAX
V
CC
V
V
V
I
OH
I
OL
∆t/∆vInput transition rise or fall rate; Outputs enabled1010ns/V
T
amb
DC supply voltage2.32.73.03.6V
Input voltage05.505.5V
This data sheet contains the design target or goal specifications for product development.
Specification may change in any manner without notice.
This data sheet contains preliminary data, and supplementary data will be published at a later date.
Philips Semiconductors reserves the right to make chages at any time without notice in order to
improve design and supply the best possible product.
This data sheet contains final specifications. Philips Semiconductors reserves the right to make
changes at any time without notice in order to improve design and supply the best possible product.
[1]
74ALVT162821
[1] Please consult the most recently issued datasheet before initiating or completing a design.
Definitions
Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For
detailed information see the relevant data sheet or data handbook.
Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one
or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or
at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended
periods may affect device reliability.
Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips
Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or
modification.
Disclaimers
Life support — These products are not designed for use in life support appliances, devices or systems where malfunction of these products can
reasonably be expected to result in personal injury . Philips Semiconductors customers using or selling these products for use in such applications
do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.
Right to make changes — Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard
cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no
responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these
products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless
otherwise specified.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
Copyright Philips Electronics North America Corporation 1998
All rights reserved. Printed in U.S.A.
print codeDate of release: 05-96
Document order number:9397-750-04619
yyyy mmm dd
12
Loading...
+ hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.