![](http://datasheet.mmic.net.cn/290000/HMA510GM-55883_datasheet_16134458/HMA510GM-55883_1.png)
3-10
April 1997
HMA510/883
16 x 16-Bit CMOS Parallel
Multiplier Accumulator
Features
This Circuit is Processed in Accordance to MIL-STD-
883 and is Fully Conformant Under the Provisions of
Paragraph 1.2.1.
16 x 16-Bit Parallel Multiplication with Accumulation
to a 35-Bit Result
High-Speed (55ns) Multiply Accumulate Time
Low Power CMOS Operation
- I
CCSB
= 500
μ
A Maximum
- I
CCOP
= 7.0mA Maximum at 1.0MHz
HMA510/883 is Compatible with the CY7C510 and the
IDT7210
Supports Two’s Complement or Unsigned Magnitude
Operations
Three-State Outputs
Description
The HMA510/883 is a high speed, low power CMOS 16 x
16-bit parallel multiplier accumulator capable of operating at
55ns clocked multiply-accumulate cycles. The 16-bit X and Y
operands may be specified as either two’s complement or
unsigned magnitude format. Additional inputs are provided
for the accumulator functions which include: loading the
accumulator with the current product, adding or subtracting
the accumulator contents and the current product, and pre-
loading the Accumulator Registers from the external inputs.
All inputs and outputs are registered. The registers are all
positive edge triggered, and are latched on the rising edge of
the associated clock signal. The 35-bit Accumulator Output
Register is broken into three parts. The 16-bit least signifi-
cant product (LSP), the 16-bit most significant product
(MSP), and the 3-bit extended product (XTP) Registers. The
XTP and MSP Registers have dedicated output ports, while
the LSP Register shares the Y-inputs in a multiplexed fash-
ion. The entire 35-bit Accumulator Output Register may be
preloaded at any time through the use of the bidirectional
output ports and the preloaded control.
Block Diagram
Ordering Information
PART NUMBER
TEMP.
RANGE (
o
C)
PACKAGE
PKG.
NO.
HMA510GM-55/883
-55 to 125
68 Ld CPGA
G68.B
HMA510GM-65/883
-55 to 125
68 Ld CPGA
G68.B
HMA510GM-75/883
-55 to 125
68 Ld CPGA
G68.B
REGISTER
SUB
ACC
RND
TC
Y0-15 P0-15
16
16
X0-15
CLKY
CLKX
ACCUMULATOR
MSP REGISTER
XTP REGISTER
LSP REGISTER
PRELOAD
CLKP
3
16
35
MULTIPLIER ARRAY
35
P32-34
16
P16-31
OEX
OEM
OEL
REGISTER
REGISTER
File Number
2807.2
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207
|
Copyright
Intersil Corporation 1999