900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Integrated Device Technology Electronic Components Datasheet

IDT7243L Datasheet

16 x 16 Parallel CMOS Multiplier Accumulator

No Preview Available !

FEATURES:
• 16 x 16 parallel multiplier/accumulator with selectable
accumulation and subtraction
• High-speed - 35ns multiply/accumulate time
• IDT721 0 features selectable accumulation, subtraction and
rounding and preloading with 35-bit result
• IDT7243 features selectable accumulation, subtraction and
rounding with 19-bit result
• IDT7210 is pin and functionally compatible with the
TRW TDC1010J
• IDT7243 is pin and functionally compatible with the
TRWTDC1043
• Both devices perform subtraction and double precision
addition and multiplication
• Produced using advanced CEMOS'· high-performance
technology
• Low-power consumption (less than 250mW typical) - less
than 1110 the power of compatible bipolar and 117 the power
of NMOS designs
• Input and output directly TTL-compatible
• Single 5V supply
• Available in topbraze DIP, SHRINK-DIp, plastic DIP, LCC,
Fine-Pitch LCC, PLCC and Flatpack
• Military product available 100% screened to MIL-STD-883,
Class B
DESCRIPTION:
The IDT7210/IDT7243 are high-speed, low-power 16 x 16
parallel multiplier/accumulators that are ideally suited for real-
time digital signal processing applications. Fabricated using
CEMOS silicon gate technology, these devices offer a very low-
power alternative to existing bipolar and NMOS counterparts,
with only 117 to 1/10the power dissipation and exceptional speed
(35ns maximum) performance.
Pin and functional replacements for TRW's TDC1010JITOC-
1043, the IDT721017243 operate from a single 5 volt supply and
are compatible with standard TTL logic levels. The architecture
ofthe IDT721 017243 is farily straightforward, featuring individual
input and output registers with clocked D-type flip-flops, a pre-
load capability (IDT7210 only) which enables input data to be
preloaded into the output registers, individual three-state output
ports for the extended product (XTP) and most significant
product (MSP), and a least significant product output (LSP)
whic\:l is multiplexed with the Y input. Unlike the IDT7210, the
1DT7243 does not have either a preload capability or a least
significant product (LSP) output accessible externally.
The XIN and YIN data input registers may be specified through
the use of the two's complement input (TC) as either two's
complement or an unsigned magnitude, yielding a full-precision
32-bit result that may be accumulated to a full 35-bit result. The
Continued on Page 2
FUNCTIONAL BLOCK DIAGRAMS
CLKV YIN (Y15 - YolP15 - PO)
Ace, SUB,
CLKX X'H(X,!> - Xo) RND, TC
CLKY VIN(V1S - Vol
TSX
XTPOUT
(P34 ·P32)
MSPOUT
(P31.P16)
IDT7210
DSP721 0-001
3
XTPOUT
(P34-P32)
CEMOS is a trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
101986 Integrated Device Technology, Inc.
4-42
TSM
IDT7243
DSP721 0-002
JULY 1986
Printed in U.S.A.


Integrated Device Technology Electronic Components Datasheet

IDT7243L Datasheet

16 x 16 Parallel CMOS Multiplier Accumulator

No Preview Available !

IDT7210L/IDT7243L 16 x 16
PARALLEL CMOS MULTIPLIER-ACCUMULATOR
DESCRIPTION (CONT'D)
three output registers-extended product (XTP), most signifi-
cant product (MSP) and least significant product (LSP)-are
controlled by the respective TSX, TSM and TSL input lines.
The LSP output can be routed through YIN ports in the IDT7210.
The accumulate input (ACC) enables the device to perform
either a multiply or a multiply-accumulate function. In the mul-
tiply-accumulate mode, output data can be added to or sub-
tracted from subsequent results. When the subtraction (SUB)
input is active simultaneously with an active ACC, a subtraction
can be performed. The double precision accumulated result is
MILITARY AND COMMERCIAL TEMPERATURE RANGES
rounded down to either asingle precision or single precision plus
3-bit extended result. In the multiply mode, the extended product
output (XTP) is sign extended in the two's complement mode, or
set to zero in the unsigned mode. The ROUND (RND) control
rounds up the most significant product (MSP) and the 3-bit
extended product (XTP) outputs. When pre-load input (PREL) is
active, all the output buffers are forced into a high-impedance
state (see PRELOAD truth table) and external data can be loaded
into the output register by using the TSX, TSL and TSM signals as
input controls.
PIN CONFIGURATIONS
x,
x,
x,
X2
x,
Xo
Po. Yo
Pl. V,
P2> Y2
Pa, V3
P4, Y4
Ps, Y5
Ps, Y6
P7. Y7
GNO
Pa. Va
Pg, Vg
PHI. Vl0
Pll. V11
Pl20 Y12
Pl3. V13
P14. Y14
P1S. V1S
P16
P17
P18
P"
P"
P2I
P"
P"
IDT7210
DIP
TOP VIEW
x,
x,
x,
XIO
x"
x"
x"
x"
x"
TSL
RNO
SUB
ACC
CLKX
elKY
Vee
TC
TSX
PREL
TSM
CLKP
P"
P"
P"
P31
P30
P"
P,.
P"
P,.
P"
P"
DSP721G-003
x,
x,
x,
x,
X2
x,
Xo
Vo
V,
V,
V,
V,
V,
V,
v,
GNO
V,
V,
VIO
V"
V"
V"
V"
V"
P16
P17
P18
P19
P"
P2I
P"
P"
IDT7243
DIP
TOP VIEW
x,
x,
x,
XIO
x"
x"
x"
x"
x"
NC
RNO
SUB
ACC
CLKX
elKY
Vee
TC
TSX
GNO
TSM
CLKP
P"
P"
P"
P31
P30
P"
P,.
P"
P"
P"
P"
DSP7210-004
4-43
IDT721 0
».:~.:
t>l~"";oi
D.Q.Q.Q.Q.
gc>nncLol")L,"nacno
5!;: ~ ~;! ~
~~~~£f££l£l
;1;~:n;::n5iC':~~~3
P"Y,61
Po.Vo 62
Xo 63
X,64
X2 65
X,66
.. 67
Xs 68
x, 1
x, 2
x, 3
x, 4
XIO 5
x"
x"
x"
x" 9
Sl;:~~':!~~t::=~~N~ ~~~
~~~i~;;~~~~~~ .:,.E,.>.o.c..oX.
00
0
LCC, PLCC & FINE-PITCH LeC
TOP VIEW
43 P17
42 P1B
41 P19
40 P"
39 P2I
38 P"
37 P23
36 P24
35 P25
34 P"
33 P27
32 P28
31 P"
30 P30
29 P3l
28 P32
'0 P"
I
DSP721 0-005
IDT7243
DD
>~~~~~~~~;;;~;~~~
g~~~~~~~~~~~~~~~3
V, 61
VO 62
Xo 63
Xl 64
X2 65
X,66
X467
Xs 68
X, 1
X, 2
X, 3
x. 4
X"
X"
X"
X"
X"
43 P17
42 P18
41 P19
40 P,.
39 P2I
38 P"
37p"
36 P"
35 P"
34 P"
33 P21
32 P"
31 P"
30 P30
29 P31
29 P",
'0 p..
~~~~~~~~'~~N~~~~~
~~~~~;;~~~~ee~~;l
00
0
DSP721Q-006
LCC, PLCC & FINE-PITCH LeC
TOP VIEW


Part Number IDT7243L
Description 16 x 16 Parallel CMOS Multiplier Accumulator
Maker IDT
Total Page 8 Pages
PDF Download

IDT7243L Datasheet PDF

View PDF for Mobile








Similar Datasheet

1 IDT7243L 16 x 16 Parallel CMOS Multiplier Accumulator
IDT





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy