HMU16/883
16 x 16-Bit CMOS Parallel Multiplier
April 1997
Features
Description
• This Circuit is Processed in Accordance to MIL-STD-
883 and is Fully Conformant Under the Provisions of
Paragraph 1.2.1.
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 specified as either two’s complement or
unsigned magnitude format, thereby, allowing mixed mode
multiplication operations.
• 16 x 16-Bit Parallel Multiplier with Full 32-Bit Product
• High-Speed (45ns) Clocked Multiply Time
• Low Power CMOS Operation
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 significant portion of the result by add-
ing one to the most significant bit of the LSP.
- I
- I
= 500µA Maximum
CCSB
CCOP
= 7.0mA Maximum at 1MHz
• HMU16/883 is Compatible with the AM29516, LMU16,
IDT7216, and the CY7C516
• Supports Two’s Complement, Unsigned Magnitude
and Mixed Mode Multiplication
Two 16-bit Output Registers (MSP and LSP) are provided to
hold the most and least significant 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.
• TTL Compatible Inputs/Outputs
• Three-State Outputs
Ordering Information
TEMP. RANGE
PKG.
NO.
o
The HMU16/883 utilizes independent clock signals (CLKX,
CLKY, CLKL, CLKM) to latch the input operands and output
Product Registers. This configuration maximizes throughput
and simplifies bus interfacing. All outputs of the HMU16/883
also offer three-state control for multiplexing onto multi-use
system busses.
PART NUMBER
HMU16GM-45/883
HMU16GM-60/883
( C)
PACKAGE
68 Ld CPGA
68 Ld CPGA
-55 to 125
-55 to 125
N68.95
N68.95
Functional Diagram
X0-15 TCX
REGISTER
RND
TCY Y0-15/P0-15
REGISTER
REGISTER
OEL
CLKX
CLKY
MULTIPLIER ARRAY
FA
FT
FORMAT ADJUST
MSP
LSP
REGISTER
REGISTER
CLKM
CLKL
MSPSEL
MULTIPLEXER
OEP
P16-31/P0-15
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
File Number 2804.2
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