HMU16/883
April 1997
16 x 16-Bit CMOS Parallel Multiplier
Description
The HMU16/883 is a high speed, low power CMOS 16 x 16-bit
parallel multiplier ideal for fast, real time digital signal pro-
cessing applications. The 16-bit X and Y operands may be
independently speci鏗乪d as either two鈥檚 complement or
unsigned magnitude format, thereby, allowing mixed mode
multiplication operations.
Additional inputs are provided to accommodate format
adjustment and rounding of the 32-bit product. The Format
Adjust control allows the user to select a 31-bit product with
the sign bit replicated in the LSP. The round control provides
for rounding the most signi鏗乧ant portion of the result by add-
ing one to the most signi鏗乧ant bit of the LSP.
Two 16-bit Output Registers (MSP and LSP) are provided to
hold the most and least signi鏗乧ant portions of the result,
respectively. These registers may be made transparent for
asynchronous operation through the use of the Feedthrough
Control (FT). The two halves of the product may be routed to
a single 16-bit three-state output port via the output multi-
plexer control, and in addition, the LSP is connected to the Y-
input port through a separate three-state buffer.
The HMU16/883 utilizes independent clock signals (CLKX,
CLKY, CLKL, CLKM) to latch the input operands and output
Product Registers. This con鏗乬uration maximizes throughput
and simpli鏗乪s bus interfacing. All outputs of the HMU16/883
also offer three-state control for multiplexing onto multi-use
system busses.
Features
鈥?This Circuit is Processed in Accordance to MIL-STD-
883 and is Fully Conformant Under the Provisions of
Paragraph 1.2.1.
鈥?16 x 16-Bit Parallel Multiplier with Full 32-Bit Product
鈥?High-Speed (45ns) Clocked Multiply Time
鈥?Low Power CMOS Operation
- I
CCSB
= 500碌A Maximum
- I
CCOP
= 7.0mA Maximum at 1MHz
鈥?HMU16/883 is Compatible with the AM29516, LMU16,
IDT7216, and the CY7C516
鈥?Supports Two鈥檚 Complement, Unsigned Magnitude
and Mixed Mode Multiplication
鈥?TTL Compatible Inputs/Outputs
鈥?Three-State Outputs
Ordering Information
PART NUMBER
HMU16GM-45/883
HMU16GM-60/883
TEMP. RANGE
(
o
C)
-55 to 125
-55 to 125
PACKAGE
68 Ld CPGA
68 Ld CPGA
PKG.
NO.
N68.95
N68.95
Functional Diagram
X0-15 TCX
RND
TCY
Y0-15/P0-15
REGISTER
REGISTER
REGISTER
OEL
CLKX
CLKY
MULTIPLIER ARRAY
FA
FT
CLKM
CLKL
MSPSEL
OEP
FORMAT ADJUST
MSP
REGISTER
LSP
REGISTER
MULTIPLEXER
P16-31/P0-15
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207
|
Copyright
漏
Intersil Corporation 1999
File Number
2804.2
3-29
1
2
3
4
5
6
7
