16 x 16 PARALLEL
CMOS MULTIPLIERS
Integrated Device Technology, Inc.
IDT7216L
IDT7217L
FEATURES:
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16 x 16 parallel multiplier with double precision product
16ns clocked multiply time
Low power consumption: 120mA
Produced with advanced submicron CMOS high perfor-
mance technology
IDT7216L is pin- and function compatible with TRW
MPY016H/K and AMD Am29516
IDT7217L requires a single clock with register enables
making it pin- and function compatible with AMD
Am29517
Configured for easy array expansion
User-controlled option for transparent output register
mode
Round control for rounding the MSP
Input and output directly TTL-compatible
Three-state output
Available in Top Braze, DIP, PLCC, Flatpack and Pin
Grid Array
Military product compliant to MIL-STD-883, Class B
Standard Military Drawing #5962-86873 is listed on this
function for IDT7216 and Standard Military Drawing
#5962-87686 is listed for this function for IDT7217.
Speeds available: Commercial: L16/20/25/35/45/55/65
Military:
L20/25/30/40/55/65/75
IDT7216
RND
Y
M
Y
15-0
/P
15-0
16
REGISTER
YREGISTER
DESCRIPTION:
The IDT7216/IDT7217 are high-speed, low-power
16 x 16-bit multipliers ideal for fast, real time digital signal
processing applications. Utilization of a modified Booths
algorithm and IDT’s high-performance, submicron CMOS
technology, has achieved speeds comparable to bipolar (20ns
max.), at 1/10 the power consumption.
The IDT7216/IDT7217 are ideal for applications requiring
high-speed multiplication such as fast Fourier transform
analysis, digital filtering, graphic display systems, speech
synthesis and recognition and in any system requirement
where multiplication speeds of a mini/microcomputer are
inadequate.
All input registers, as well as LSP and MSP output regis-
ters, use the same positive edge-triggered D-type flip-flop. In
the IDT7216, there are independent clocks (CLKX, CLKY,
CLKM, CLKL) associated with each of these registers. The
IDT7217 has only a single clock input (CLK) and three register
enables.
ENX
and
ENY
control the two input registers, while
ENP
controls the entire product.
The IDT7216/IDT7217 offer additional flexibility with the FA
control and
MSPSEL
functions. The FA control formats the
output for two’s complement by shifting the MSP up one bit
and then repeating the sign bit in the MSB of the LSP. The
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FUNCTIONAL BLOCK DIAGRAMS
X
M
X
15-0
16
XREGISTER
X
M
IDT7217
X
15-0
RND
16
REGISTER
Y
M
Y
15-0
/P
15-0
16
YREGISTER
XREGISTER
CLKY
CLKX
OEL
CLK
ENX
ENY
MULTIPLIER
ARRAY
MULTIPLIER
ARRAY
OEL
FA
FT
CLKM
CLKL
MSPSEL
OEP
FORMAT ADJUST
MSP
LSP
REGISTER REGISTER
16
16
FA
FT
ENP
FORMAT ADJUST
MSP
LSP
REGISTER REGISTER
16
16
MULTIPLEXER
MSPSEL
OEP
MULTIPLEXER
PRODUCT
16
2580 drw 01
PRODUCT
16
2580 drw 02
MSP
OUT
(P
31
- P
16
)
The IDT Logo is a registered trademark of Integrated Device Technology, Inc.
MSP
OUT
(P
31
- P
16
)
MILITARY AND COMMERCIAL TEMPERATURE RANGES
©1995
Integrated Device Technology, Inc.
AUGUST 1995
DSC-2023/6
11.3
1
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
