LMA1009

LMA1009 LODEV | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 7

Technical content

03/29/2000–LDS.10/2009-L1 LMA 1009/2009 12 x 12-bit Multiplier-Accumulator ❑❑❑❑❑ 20 ns Multiply-Accumulate Time ❑❑❑❑❑ Low Power CMOS Technology ❑❑❑❑❑ Replaces Fairchild TDC1009/ TMC2009 ❑❑❑❑❑ Two’s Complement or Unsigned Operands ❑❑❑❑❑ Accumulator Performs Preload, Accumulate, and Subtract ❑❑❑❑❑ Three-State Outputs ❑❑❑❑❑ 68-pin PLCC, J-Lead FEATURES DESCRIPTION LMA1009/2009 12 x 12-bit Multiplier-AccumulatorDEVICES INCORPORATED The LMA1009 and LMA2009 are high- speed, low power 12-bit multiplier-accu- mulators. They are pin-for-pin equiva- lent to the TRW TDC1009/TMC2009 multiplier-accumulators. The LMA1009 and LMA2009 are functionally identical; they differ only in packaging. Full ambi- ent temperature range operation is achieved by the use of advanced CMOS technology. The LMA1009/2009 produces the 24-bit product of two 12-bit numbers. The results of a series of multiplications may be accumulated to form the sum of prod- ucts. Accumulation is performed to 27-bit precision with the multiplier prod- uct sign extended as appropriate. Data present at the A and B input regis- ters is latched on the rising edges of CLK A and CLK B respectively. RND, TC, ACC, and SUB controls are latched on the rising edge of the logical OR of CLK A and CLK B. TC specifies the input as two’s complement (TC HIGH) or unsigned magnitude (TC LOW). RND, when HIGH, adds ‘1’ to the most significant bit position of the least significant half of the product. Sub- sequent truncation of the 12 least signifi- cant bits produces a result correctly rounded to 12-bit precision. The ACC and SUB inputs control accu- mulator operation. ACC HIGH results in addition of the multiplier product and the accumulator contents, with the result stored in the accumulator register on the rising edge of CLK R. ACC and SUB HIGH results in subtraction of the accu- mulator contents from the multiplier product, with the result stored in the accumulator register. With ACC LOW and SUB LOW, no accumulation occurs and the next product is loaded directly into the accumulator register. ACC LOW and SUB HIGH is undefined. The LMA1009/2009 output register (ac- cumulator register) is divided into three independently controlled sections. The least significant result (LSR) and most significant result (MSR) registers are 12 bits in length. The extended result regis- ter (XTR) is 3 bits long. Each output register has an independ- ent output enable control. In addition to providing control of the three-state output buffers, when OEX, OEM, or OEL are HIGH and PREL is HIGH, data can be preloaded via the bidirectional output pins into the respective output registers. Data present on the output pins is latched on the rising edge of CLK R. The interrelation of PREL and the enable controls is summarized in Table 1. LMA1009/2009 BLOCK DIAGRAM ACC A REGISTER B REGISTER REGISTER REGISTER CLK A CLK B RND 12 12 A 11-0 R 23-12 B 11-0 R + A R – A PASS R LEM LELLEX R 11-0 R 26-24 27PRELOAD CONTROL LOGIC CLK R ACCUMULATOR TC SUB R A OEL OEX OEM PREL LEL LEX LEM OEL OEX OEM OEX OEM OEL 27 3 12 12

03/29/2000–LDS.10/2009-L3 LMA 1009/2009 12 x 12-bit Multiplier-Accumulator Symbol Parameter Test Condition Min Typ Max Unit VOH Output High Voltage VCC = Min., IOH = –2.0 mA 2.4 V VOL Output Low Voltage VCC = Min., IOL = 8.0 mA 0.5 V VIH Input High Voltage 2.0 VCC V VIL Input Low Voltage (Note 3) 0.0 0.8 V IIX Input Current Ground ≤ VIN ≤ VCC (Note 12) ±20 µA IOZ Output Leakage Current Ground ≤ VOUT ≤ VCC (Note 12) ±20 µA ICC1 VCC Current, Dynamic (Notes 5, 6) 12 25 mA ICC2 VCC Current, Quiescent (Note 7) 1.0 mA M AXIMUM RATINGS Above which useful life may be impaired (Notes 1, 2, 3, 8) O PERATING CONDITIONS To meet specified electrical and switching characteristics ELECTRICAL CHARACTERISTICS Over Operating Conditions (Note 4) Mode Temperature Range (Ambient) Supply Voltage Active Operation, Commercial 0°C to +70°C 4.75 V ≤ VCC ≤ 5.25 V Active Operation, Military –55°C to +125°C 4.50 V ≤ VCC ≤ 5.50 V

03/29/2000–LDS.10/2009-L4 LMA 1009/2009 12 x 12-bit Multiplier-Accumulator 12345678901234567890123 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 1 234567890123456789012 3 12345678901234567890123 123456789012345678901234567890121234567890123 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 1 2345678901234567890123456789012123456789012 3 123456789012345678901234567890121234567890123 LMA1009/2009– 95* 65* 55* 25* Symbol Parameter Min Max Min Max Min Max Min Max tMC Clocked Multiply Time 95 65 55 25 tPW Clock Pulse Width 20 20 15 10 tS Input Register Setup Time 20 20 15 12 tH Input Register Hold Time 2 2 2 2 tSP Preload Setup Time 20 20 15 12 tHP Preload Hold Time 2 2 2 2 tD Output Delay 35 30 25 20 tENA Three-State Output Enable Delay (Note 11) 35 35 30 20 tDIS Three-State Output Disable Delay (Note 11) 30 30 30 20 LMA1009/2009– 75* 55* 45 20 Symbol Parameter Min Max Min Max Min Max Min Max tMC Clocked Multiply Time 75 55 45 20 tPW Clock Pulse Width 15 15 15 8 tS Input Register Setup Time 15 15 12 10 tH Input Register Hold Time 2 2 2 2 tSP Preload Setup Time 15 15 12 10 tHP Preload Hold Time 2 2 2 2 tD Output Delay 30 25 25 18 tENA Three-State Output Enable Delay (Note 11) 30 30 25 18 tDIS Three-State Output Disable Delay (Note 11) 25 25 25 18 C OMMERCIAL OPERATING RANGE (0°C to +70°C) Notes 9, 10 (ns) SWITCHING CHARACTERISTICS M ILITARY OPERATING RANGE (–55°C to +125°C) Notes 9, 10 (ns) 123456789012345678901234 1 2345678901234567890123 4 123456789012345678901234 *DISCONTINUED SPEED GRADE SWITCHING WAVEFORMS HIGH IMPEDANCE A11-0 B11-0 tENAtDIS tMC tHtS CLK A CLK B CLK R OE* tSP OUTPUTPRELOAD tHP R 26-0 PREL tPW tPW tPW tD *includes OEX, OEM, OEL

03/29/2000–LDS.10/2009-L5 LMA 1009/2009 12 x 12-bit Multiplier-Accumulator 1. Maximum Ratings indicate stress specifications only. Functional oper- ation of these products at values beyond those indicated in the Operating Condi- tions table is not implied. Exposure to maximum rating conditions for ex- tended periods may affect reliability. 2. The products described by this spec- ification include internal circuitry de- signed to protect the chip from damag- ing substrate injection currents and ac- cumulations of static charge. Neverthe- less, conventional precautions should be observed during storage, handling, and use of these circuits in order to avoid exposure to excessive electrical stress values. 3. This device provides hard clamping of transient undershoot and overshoot. In- put levels below ground or above V CC will be clamped beginning at –0.6 V and VCC + 0.6 V. The device can withstand indefinite operation with inputs in the range of –0.5 V to +7.0 V. Device opera- tion will not be adversely affected, how- ever, input current levels will be well in excess of 100 mA. 4. Actual test conditions may vary from those designated but operation is guar- anteed as specified. 5. Supply current for a given applica- tion can be accurately approximated by: where N = total number of device outputs C = capacitive load per output V = supply voltage F = clock frequency 6. Tested with all outputs changing ev- ery cycle and no load, at a 5 MHz clock rate. 7. Tested with all inputs within 0.1 V of V CC or Ground, no load. 8. These parameters are guaranteed but not 100% tested. NCV F NOTES 9. AC specifications are tested with input transition times less than 3 ns, output reference levels of 1.5 V (except t DIS test), and input levels of nominally 0 to 3.0 V. Output loading may be a resistive divider which provides for specified IOH and IOL at an output voltage of VOH min and VOL max respectively. Alternatively, a diode bridge with upper and lower current sources of IOH and IOL respectively, and a balancing voltage of 1.5 V may be used. Parasitic capacitance is 30 pF minimum, and may be distributed. This device has high-speed outputs ca- pable of large instantaneous current pulses and fast turn-on/turn-off times. As a result, care must be exercised in the testing of this device. The following measures are recommended: a. A 0.1 µF ceramic capacitor should be installed between V CC and Ground leads as close to the Device Under Test (DUT) as possible. Similar capacitors should be installed between device VCC and the tester common, and device ground and tester common. b. Ground and VCC supply planes must be brought directly to the DUT socket or contactor fingers. c. Input voltages should be adjusted to compensate for inductive ground and VCC noise to maintain required DUT input levels relative to the DUT ground pin. 10. Each parameter is shown as a min- imum or maximum value. Input re- quirements are specified from the point of view of the external system driving the chip. Setup time, for example, is specified as a minimum since the exter- nal system must supply at least that much time to meet the worst-case re- quirements of all parts. Responses from the internal circuitry are specified from the point of view of the device. Output delay, for example, is specified as a maximum since worst-case operation of any device always provides data within that time. 11. For the t ENA test, the transition is measured to the 1.5 V crossing point with datasheet loads. For the tDIS test, the transition is measured to the ±200mV level from the measured steady-state output voltage with ±10mA loads. The balancing volt- age, V TH, is set at 3.5 V for Z-to-0 and 0-to-Z tests, and set at 0 V for Z- to-1 and 1-to-Z tests. 12. These parameters are only tested at the high temperature extreme, which is the worst case for leakage current. IOH IOL VTHC L DUT OE 0.2 V tDIStENA 0.2 V 1.5 V 1.5 V 3.5V Vth 1 Z 0 Z Z 1 Z 0 1.5 V 1.5 V 0V Vth VOL * VOH * VOL * VOH * Measured VOL with IOH = –10mA and IOL = 10mA Measured VOH with IOH = –10mA and IOL = 10mA FIGURE B. THRESHOLD LEVELS FIGURE A. OUTPUT LOADING CIRCUIT

03/29/2000–LDS.10/2009-L6 LMA 1009/2009 12 x 12-bit Multiplier-Accumulator 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1 23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 1 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121 Sidebraze Hermetic DIP (D6) 64-pin LMA1009 — ORDERING INFORMATION 68-pin 0°C to +70°C — COMMERCIAL SCREENING Speed Ceramic Pin Grid Array (G2) –55°C to +125°C — MIL-STD-883 COMPLIANT –55°C to +125°C — COMMERCIAL SCREENING ACC SUB RND OEL R 0 R 1 R 2 R 3 R 4 R 5 GND R 6 R 7 R 8 R 9 R 10 R 11 CLK R PREL OEM R 12 R 13 R 14 R 15 R 16 R 17 R 18 A10 A11 CLK A CLK B B VCC B10 B11 TC OEX R R 25 R 24 R 23 R 22 R 21 R 20 R 19 A B C D E F G H J K L Top View Through Package (i.e., Component Side Pinout) 12345 6 7 8 9 10 11 R 0 R 2 R 4 GND R 7 R 9 R 11 PREL NC NC OEL R 1 R 3 R 5 R 6 R 8 R 10 CLK R OEM R 12 RND SUB R 13 R 14 ACC R 15 R 16 R 17 R 18 R 19 R 20 R 21 R 22 R 23 R 24 A10 R 25 R 26 A11 CLK A VCC B11 OEX NC NC CLK B B10 TC Discontinued Package Discontinued Package

03/29/2000–LDS.10/2009-L7 LMA 1009/2009 12 x 12-bit Multiplier-Accumulator 68-pin LMA2009 — ORDERING INFORMATION 0°C to +70°C — COMMERCIAL SCREENING Speed 45 ns 20 ns –55°C to +125°C — MIL-STD-883 COMPLIANT –55°C to +125°C — COMMERCIAL SCREENING Plastic J-Lead Chip Carrier (J2) LMA2009JC45 LMA2009JC20 6768 64 65 Top View 46 6 63 6212 27 32 33 34 35 36 37 38 39 40 41 42 43 586 7 28 29 30 31 CLK A A11 A10 ACC SUB RND OEL OEX R R 25 R 24 R 23 R 22 R 21 R 20 R 19 R 18 R 17 R 16 R 15 R 14 R 13 R 12 OEM TC B11 B10 VCC NC V CC CLK B PREL CLK R R 11 R 10 R 9 R 8 R 7 NC R 6 GND GND R R 4 R 3 R 2 R 1 R 0