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HMA510883 Schematic ( PDF Datasheet ) - Intersil Corporation

Teilenummer HMA510883
Beschreibung 16 x 16-Bit CMOS Parallel Multiplier Accumulator
Hersteller Intersil Corporation
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Gesamt 9 Seiten
HMA510883 Datasheet, Funktion
HMA510/883
April 1997
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
- ICCSB = 500µA Maximum
- ICCOP = 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
Ordering Information
PART NUMBER
HMA510GM-55/883
HMA510GM-65/883
HMA510GM-75/883
TEMP.
RANGE (oC)
PACKAGE
-55 to 125 68 Ld CPGA
-55 to 125 68 Ld CPGA
-55 to 125 68 Ld CPGA
PKG.
NO.
G68.B
G68.B
G68.B
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
X0-15
16
RND SUB Y0-15 P0-15
TC ACC
16
PRELOAD
CLKP
REGISTER
REGISTER
REGISTER
CLKY
CLKX
XTP REGISTER
MULTIPLIER ARRAY
35
ACCUMULATOR
MSP REGISTER LSP REGISTER
3 16
35
16
OEX
OEM
OEL
P32-34
P16-31
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
3-10
File Number 2807.2






HMA510883 Datasheet, Funktion
AC Test Circuit
DUT
V1
R1
C1 (SEE NOTE)
HMA510/883
AC Testing Input, Output Waveforms
VIH 1.5V
VIL
1.5V
VOH
VOL
NOTE: Includes Stray and Jig Capacitance
NOTE: AC Testing: All Parameters tested as per test circuit. Input
rise and fall times are driven at 1ns/V.
Timing Diagram
DATA
INPUT
CLOCK
INPUT
tS tH
3.0V
1.5V
0V
THREE
STATE
CONTROL
3.0V
1.5V
0V
OUTPUT
THREE
STATE
1.5V
tDIS
tENA
HIGH IMPEDANCE
FIGURE 1. SET-UP AND HOLD TIME
FIGURE 2. THREE-STATE CONTROL
CLKX
CLKY
XIN, YIN
RND, TC
ACC, SUB
CLKP
tS
OUTPUT P, Y
tPWH
tPWL
tH
tHCL
tMA
tD
FIGURE 3. HMA510 TIMING DIAGRAM
tPWH
tPWL
CLKP
PREL
OEX
OEM
OEL
OUTPUT
PINS
tS tH
FIGURE 4. PRELOAD TIMING DIAGRAM
3-15

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