EEWORLDEEWORLDEEWORLD

Part Number

Search

LMU16

Description
16 x 16-bit Parallel Multiplier
File Size150KB,7 Pages
ManufacturerLOGIC Devices
Websitehttp://www.logicdevices.com/
Download Datasheet Compare View All

LMU16 Overview

16 x 16-bit Parallel Multiplier

LMU16/216
DEVICES INCORPORATED
16 x 16-bit Parallel Multiplier
LMU16/216
DEVICES INCORPORATED
16 x 16-bit Parallel Multiplier
DESCRIPTION
The
LMU16
and
LMU216
are high-
speed, low power 16-bit parallel
multipliers. The LMU16 and
LMU216 are functionally identical;
they differ only in packaging.
The LMU16 and LMU216 produce
the 32-bit product of two 16-bit
numbers. Data present at the A
inputs, along with the TCA control
bit, is loaded into the A register on
the rising edge of CLK A. B data
and the TCB control bit are
similarly loaded by CLK B. The
TCA and TCB controls specify the
A and B operands as two’s
complement when HIGH, or
unsigned magnitude when LOW.
RND is loaded on the rising edge of
the logical OR of CLK A and CLK B.
RND, when HIGH, adds ‘1’ to the
most significant bit position of the
least significant half of the product.
Subsequent truncation of the 16 least
significant bits produces a result
correctly rounded to 16-bit precision.
At the output, the Right Shift control
(RS) selects either of two output
formats. RS LOW produces a 31-bit
product with a copy of the sign bit
inserted in the MSB postion of the
least significant half. RS HIGH gives a
full 32-bit product. Two 16-bit output
registers are provided to hold the
most and least significant halves of the
result (MSP and LSP) as defined by
RS. These registers are loaded on the
rising edge of CLK M and CLK L
respectively. For asynchronous
output, these registers may be made
transparent by setting the feed
through control (FT) HIGH.
The two halves of the product may be
routed to a single 16-bit three-state
output port (MSP) via a multiplexer.
MSPSEL LOW causes the MSP
outputs to be driven by the most
significant half of the result. MSPSEL
HIGH routes the least significant half
of the result to the MSP outputs. In
addition, the LSP is available via the B
port through a separate three-state
buffer.
The output multiplexer control
MSPSEL uses a pin which is a supply
ground in the Fairchild MPY016H/
TMC216H. When this control is LOW
(GND), the function is that of the
MPY016H/TMC216H, thus allowing
full compatibility.
FEATURES
u
20 ns Worst-Case Multiply Time
u
Low Power CMOS Technology
u
Replaces Fairchild MPY016/TMC216,
Cypress CY7C516, IDT 7216L, and
AMD Am29516
u
Two’s Complement, Unsigned, or
Mixed Operands
u
Three-State Outputs
u
68-pin PLCC, J-Lead
LMU16/216 B
LOCK
D
IAGRAM
B
15-0
/
R
15-0
TCA
A
15-0
16
CLK A
CLK B
A REGISTER
TCB
16
B REGISTER
RND
REGISTER
32
RS
FORMAT ADJUST
16
FT
CLK M
RESULT
16
REGISTER
CLK L
MSPSEL
OEM
16
R
31-16
16
OEL
Multipliers
1
08/16/2000–LDS.16/216-N

LMU16 Related Products

LMU16 LMU216JC20 LMU216JC25
Description 16 x 16-bit Parallel Multiplier 16 x 16-bit Parallel Multiplier 16 x 16-bit Parallel Multiplier
Is it lead-free? - Contains lead Contains lead
Is it Rohs certified? - incompatible incompatible
Maker - LOGIC Devices LOGIC Devices
Parts packaging code - LCC LCC
package instruction - QCCJ, LDCC68,1.0SQ QCCJ, LDCC68,1.0SQ
Contacts - 68 68
Reach Compliance Code - compli compli
ECCN code - 3A001.A.3 3A991.A.2
Other features - 2 X 16 BIT DATA INPUT BUS; ICC SPECIFIED AT 5MHZ 2 X 16 BIT DATA INPUT BUS; ICC SPECIFIED AT 5MHZ
boundary scan - NO NO
maximum clock frequency - 50 MHz 40 MHz
External data bus width - 16 16
JESD-30 code - S-PQCC-J68 S-PQCC-J68
JESD-609 code - e0 e0
length - 24.2316 mm 24.2316 mm
low power mode - NO NO
Humidity sensitivity level - 3 3
Number of terminals - 68 68
Maximum operating temperature - 70 °C 70 °C
Output data bus width - 32 32
Package body material - PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code - QCCJ QCCJ
Encapsulate equivalent code - LDCC68,1.0SQ LDCC68,1.0SQ
Package shape - SQUARE SQUARE
Package form - CHIP CARRIER CHIP CARRIER
Peak Reflow Temperature (Celsius) - NOT SPECIFIED NOT SPECIFIED
power supply - 5 V 5 V
Certification status - Not Qualified Not Qualified
Maximum seat height - 5.08 mm 5.08 mm
Maximum slew rate - 25 mA 25 mA
Maximum supply voltage - 5.25 V 5.25 V
Minimum supply voltage - 4.75 V 4.75 V
Nominal supply voltage - 5 V 5 V
surface mount - YES YES
technology - CMOS CMOS
Temperature level - COMMERCIAL COMMERCIAL
Terminal surface - Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Terminal form - J BEND J BEND
Terminal pitch - 1.27 mm 1.27 mm
Terminal location - QUAD QUAD
Maximum time at peak reflow temperature - NOT SPECIFIED NOT SPECIFIED
width - 24.2316 mm 24.2316 mm
uPs/uCs/peripheral integrated circuit type - DSP PERIPHERAL, MULTIPLIER DSP PERIPHERAL, MULTIPLIER
How to wire BGA?
I am now going to draw a 144-pin BGA package circuit board. This is my first time drawing a six-layer board. I want to ask how to drill holes one by one. Are there any requirements? Do I have to drill...
junliyang Embedded System
Very good
If you have any, please give me one too, thank you! ! [email=tuoming624@yahoo.com.cn]tuoming624@yahoo.com.cn[/email]...
tuoming624 MCU
Big brother or sister, please help me.
Regarding the information on the design of single hydraulic prop seal quality detection using a single chip microcomputer, thank you, thank you...
xuzhougongzuo MCU
South Korea's Hyundai Motor's smart airbag uses FRAM as data storage
Ramtron International, the world's leading supplier and developer of non-volatile ferroelectric memory (FRAM) and integrated semiconductor products, announced that Hyundai Autonet of South Korea has s...
frozenviolet Automotive Electronics
Why is the output incorrect when the 24V battery powers the DC-DC?
[i=s]This post was last edited by Xiao Liuzi on 2018-7-10 17:34[/i] The battery output voltage is 24V, and the voltage regulator output voltage is 24V. If a switching power supply or a voltage regulat...
肖柳子 Integrated technical exchanges
Time domain analysis of IF signals
How to analyze and process the time domain of the intermediate frequency signal (about 120Mhz) of the device without using an oscilloscope, and hope to measure the amplitude, duty cycle, frequency and...
leosky568 RF/Wirelessly

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 345  2878  941  765  2323  7  58  19  16  47 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号