DATA SHEET MOS INTEGRATED CIRCUIT µPD442012L-X 2M-BIT CMOS STATIC RAM 128K-WORD BY 16-BIT EXTENDED TEMPERATURE OPERATION Description The µPD442012L-X is a high speed, low power, 2,097,152 bits (131,072 words by 16 bits) CMOS static RAM. The µPD442012L-X has two chip enable pins (/CE1, CE2) to extend the capacity. ★ The µPD442012L-X is packed in 48-pin plastic TSOP (I) (Normal bent). Features • 131,072 words by 16 bits organization • Fast access time: 70, 85, 100, 120, 150, 200 ns (MAX.) • Byte data control: /LB (I/O1 - I/O8), /UB (I/O9 - I/O16) • Low voltage operation (B version: VCC = 2.7 to 3.6 V, C version: VCC = 2.2 to 3.6 V, D version: VCC = 1.8 to 3.6 V) • Low VCC data retention (B version: 2.0 V (MIN.), C version: 1.5 V (MIN.), D version: 1.5 V (MIN.)) • Operating ambient temperature: TA = –25 to +85 °C • Output Enable input for easy application • Two Chip Enable inputs: /CE1, CE2 Part number Access time Operating supply Operating ambient ns (MAX.) µPD442012L-BxxX µPD442012L-CxxX µPD442012L-DxxX Note Supply current voltage temperature At operating At standby At data retention V °C mA (MAX.) µA (MAX.) µA (MAX.) 70, 85 2.7 to 3.6 −25 to +85 35 4 4 100, 120 2.2 to 3.6 150, 200 1.8 to 3.6 Note Under development The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version. Not all devices/types available in every country. Please check with local NEC representative for availability and additional information. Document No. M14274EJ4V0DS00 (4th edition) Date Published July 2000 NS CP (K) Printed in Japan The mark ★ shows major revised points. © 1999 µPD442012L-X ★ Ordering Information Part number Package Access time Operating Operating ns (MAX.) supply voltage temperature V °C 2.7 to 3.6 −25 to +85 µPD442012LGY-B70X-MJH 48-PIN PLASTIC TSOP (I) 70 µPD442012LGY-B85X-MJH (12×18) (Normal bent) 85 µPD442012LGY-C10X-MJH 100 µPD442012LGY-C12X-MJH B version 2.2 to 3.6 C version 1.8 to 3.6 D version 120 µPD442012LGY-D15X-MJH Note 150 µPD442012LGY-D20X-MJH Note 200 Note Under development 2 Remark Data Sheet M14274EJ4V0DS00 µPD442012L-X ★ Pin Configuration (Marking Side) /xxx indicates active low signal. 48-PIN PLASTIC TSOP (I) (12× ×18) (Normal bent) [ µPD442012LGY-BxxX-MJH ] [ µPD442012LGY-CxxX-MJH ] [ µPD442012LGY-DxxX-MJH ] A15 A14 A13 A12 A11 A10 A9 A8 NC NC /WE CE2 IC /UB /LB NC NC A7 A6 A5 A4 A3 A2 A1 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 A0 - A16 A16 NC GND I/O16 I/O8 I/O15 I/O7 I/O14 I/O6 I/O13 I/O5 VCC I/O12 I/O4 I/O11 I/O3 I/O10 I/O2 I/O9 I/O1 /OE GND /CE1 A0 : Address inputs I/O1 - I/O16 : Data inputs / outputs /CE1, CE2 : Chip Enable 1, 2 /WE : Write Enable /OE : Output Enable /LB, /UB : Byte data select VCC : Power supply GND : Ground NC : No Connection IC Note : Internal Connection Note Leave this pin unconnected or connect to GND. Remark Refer to Package Drawing for the 1-pin index mark. Data Sheet M14274EJ4V0DS00 3 µPD442012L-X Block Diagram VCC GND A0 A16 Address buffer Row decoder I/O1 - I/O8 ★ I/O9 - I/O16 Input data controller Memory cell array 2,097,152 bits Sense amplifier / Switching circuit Column decoder Address buffer /CE1 CE2 /LB /UB /WE /OE 4 Data Sheet M14274EJ4V0DS00 Output data controller µPD442012L-X Truth Table /CE1 CE2 /OE /LB /UB Mode I/O Supply current I/O1 - I/O8 I/O9 - I/O16 Not selected High impedance High impedance ISB ICCA H × × × × × × L × × × × L H H H × × Output disable High impedance High impedance L H L L Word read DOUT DOUT L H Lower byte read DOUT High impedance H L Upper byte read High impedance DOUT L L Word write DIN DIN L H Lower byte write DIN High impedance H L Upper byte write High impedance DIN H H Not selected High impedance High impedance × ★ /WE × × × L × ISB Remark × : VIH or VIL Data Sheet M14274EJ4V0DS00 5 µPD442012L-X Electrical Specifications Absolute Maximum Ratings Parameter Symbol Condition Rating –0.5 Note Unit Supply voltage VCC to +4.0 V Input / Output voltage VT –0.5 Note to VCC+0.4 (4.0 V MAX.) V Operating ambient temperature TA –25 to +85 °C Storage temperature Tstg –55 to +125 °C Note –3.0 V (MIN.) (Pulse width : 30 ns) Caution Exposing the device to stress above those listed in Absolute Maximum Rating could cause permanent damage. The device is not meant to be operated under conditions outside the limits described in the operational section of this specification. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Recommended Operating Conditions Parameter Symbol Supply voltage VCC High level input voltage VIH Low level input voltage VIL Operating ambient temperature TA Condition µPD442012L-BxxX µPD442012L-CxxX µPD442012L-DxxX Unit MIN. MAX. MIN. MAX. MIN. MAX. 2.7 3.6 2.2 3.6 1.8 3.6 V 2.7 V ≤ VCC ≤ 3.6 V 2.4 VCC+0.4 2.4 VCC+0.4 2.4 VCC+0.4 V 2.2 V ≤ VCC < 2.7 V – – 2.0 VCC+0.3 2.0 VCC+0.3 1.8 V ≤ VCC < 2.2 V – – – – 1.6 VCC+0.2 –0.3 Note –25 +0.5 +85 –0.3 Note –25 +0.3 +85 –0.3 Note –25 +0.2 V +85 °C Note –1.5 V (MIN.) (Pulse width: 30 ns) Capacitance (TA = 25 °C, f = 1 MHz) Parameter Symbol Test condition MIN. TYP. MAX. Unit Input capacitance CIN VIN = 0 V 8 pF Input / Output capacitance CI/O VI/O = 0 V 10 pF Remarks 1. VIN : Input voltage VI/O : Input / Output voltage 2. These parameters are periodically sampled and not 100% tested. 6 Data Sheet M14274EJ4V0DS00 µPD442012L-X DC Characteristics (Recommended Operating Conditions Unless Otherwise Noted) Parameter Symbol VCC ≥ 2.7 V Test condition VCC ≥ 2.2 V VCC ≥ 1.8 V Unit µPD442012L-BxxX µPD442012L-CxxX µPD442012L-DxxX MIN. TYP. MAX. MIN. TYP. MAX. MIN. TYP. MAX. Input leakage ILI VIN = 0 V to VCC –1.0 +1.0 –1.0 +1.0 –1.0 +1.0 µA ILO VI/O = 0 V to VCC, /CE1 = VIH or –1.0 +1.0 –1.0 +1.0 –1.0 +1.0 µA mA current I/O leakage current CE2 = VIL or /WE = VIL or /OE = VIH Operating ICCA1 supply current ICCA2 /CE1 = VIL, CE2 = VIH, 35 – 35 – 35 Minimum cycle time, VCC ≤ 2.7 V – – – 20 – 20 II/O = 0 mA VCC ≤ 2.2 V – – – – – 15 – 10 – 10 – 10 VCC ≤ 2.7 V – – – 8 – 8 VCC ≤ 2.2 V – – – – – 6 – 8 – 8 – 8 /CE1 = VIL, CE2 = VIH, II/O = 0 mA ICCA3 – /CE1 ≤ 0.2 V, CE2 ≥ VCC – 0.2 V, Cycle = 1 MHz, II/O = 0 mA, Standby ISB supply current ISB1 VIL ≤ 0.2 V, VCC ≤ 2.7 V – – – 6 – 6 VIH ≥ VCC – 0.2 V VCC ≤ 2.2 V – – – – – 5 – 0.6 – 0.6 – 0.6 /CE1 = VIH or CE2 = VIL or /LB = /UB = VIH, VCC ≤ 2.7 V – – – 0.6 – 0.6 /CE1, CE2 = VIH or VIL VCC ≤ 2.2 V – – – – – 0.6 0.3 4 0.3 4 0.3 4 VCC ≤ 2.7 V – – 0.25 3.5 0.25 3.5 VCC ≤ 2.2 V – – – – 0.2 3 0.3 4 0.3 4 0.3 4 VCC ≤ 2.7 V – – 0.25 3.5 0.25 3.5 VCC ≤ 2.2 V – – – – 0.2 3 0.3 4 0.3 4 0.3 4 /CE1 ≥ VCC − 0.2 V, CE2 ≥ VCC − 0.2 V ISB2 ISB3 High level VOH CE2 ≤ 0.2 V /LB = /UB ≥ VCC − 0.2 V, /CE1 ≤ 0.2 V, VCC ≤ 2.7 V – – 0.25 3.5 0.25 3.5 CE2 ≥ VCC − 0.2 V VCC ≤ 2.2 V – – – – 0.2 3 IOH = –0.5 mA output voltage Low level VOL 2.4 2.4 2.4 VCC ≤ 2.7 V – 1.8 1.8 VCC ≤ 2.2 V – – 1.5 IOL = 1.0 mA 0.4 0.4 mA µA V 0.4 V output voltage Remarks 1. VIN : Input voltage VI/O : Input / Output voltage 2. These DC characteristics are in common regardless of access time. Data Sheet M14274EJ4V0DS00 7 µPD442012L-X AC Characteristics (Recommended Operating Conditions Unless Otherwise Noted) AC Test Conditions [ µPD442012L-B70X, µPD442012L-B85X ] Input Waveform (Rise and Fall Time ≤ 5 ns) 2.4 V 1.5 V Test points 1.5 V 1.5 V Test points 1.5 V 1.1 V Test points 1.1 V 1.1 V Test points 1.1 V 0.5 V Output Waveform Output Load 1TTL + 50 pF [ µPD442012L-C10X, µPD442012L-C12X ] Input Waveform (Rise and Fall Time ≤ 5 ns) 2.0 V 0.3 V Output Waveform Output Load 1TTL + 30 pF [ µPD442012L-D15X, µPD442012L-D20X ] Input Waveform (Rise and Fall Time ≤ 5 ns) 1.6 V 0.9 V Test points 0.9 V Test Points 0.9 V 0.2 V Output Waveform 0.9 V Output Load 1TTL + 30 pF 8 Data Sheet M14274EJ4V0DS00 µPD442012L-X Read Cycle Parameter VCC ≥ 2.7 V Symbol VCC ≥ 2.2 V VCC ≥ 1.8 V Unit Condition µPD442012L µPD442012L µPD442012L µPD442012L µPD442012L µPD442012L -B70X -B85X -C10X -C12X -D15X -D20X MIN. MAX. MIN. MAX. MIN. MAX. MIN. MAX. MIN. MAX. MIN. MAX. Read cycle time tRC 70 85 100 120 150 200 ns Address access time tAA 70 85 100 120 150 200 ns /CE1 access time tCO1 70 85 100 120 150 200 ns CE2 access time tCO2 70 85 100 120 150 200 ns /OE to output valid tOE 35 40 50 60 70 100 ns /LB, /UB to output valid tBA 70 85 100 120 150 200 ns Output hold from address change tOH 10 10 10 10 10 10 ns /CE1 to output in low impedance tLZ1 10 10 10 10 10 10 ns CE2 to output in low impedance tLZ2 10 10 10 10 10 10 ns /OE to output in low impedance tOLZ 5 5 5 5 5 5 ns /LB, /UB to output in low impedance tBLZ 10 10 10 10 10 10 ns /CE1 to output in high impedance tHZ1 25 30 35 40 50 70 ns CE2 to output in high impedance tHZ2 25 30 35 40 50 70 ns /OE to output in high impedance tOHZ 25 30 35 40 50 70 ns /LB, /UB to output in high impedance tBHZ 25 30 35 40 50 70 ns Note 1 Note 2 Notes 1. The output load is 1TTL + 50 pF (µPD442012L-BxxX) or 1TTL + 30 pF (µPD442012L-CxxX, -DxxX). 2. The output load is 1TTL + 5 pF. Data Sheet M14274EJ4V0DS00 9 µPD442012L-X Read Cycle Timing Chart tRC Address (Input) tAA tOH /CE1 (Input) tHZ1 tCO1 tLZ1 CE2 (Input) tCO2 tHZ2 tLZ2 /OE (Input) tOE tOHZ tOLZ /LB, /UB (Input) tBA tBHZ tBLZ I/O (Output) Remark 10 High impedance In read cycle, /WE should be fixed to high level. Data Sheet M14274EJ4V0DS00 Data out µPD442012L-X Write Cycle Parameter VCC ≥ 2.7 V Symbol VCC ≥ 2.2 V VCC ≥ 1.8 V Unit Condition µPD442012L µPD442012L µPD442012L µPD442012L µPD442012L µPD442012L -B70X -B85X -C10X -C12X -D15X -D20X MIN. MAX. MIN. MAX. MIN. MAX. MIN. MAX. MIN. MAX. MIN. MAX. Write cycle time tWC 70 85 100 120 150 200 ns /CE1 to end of write tCW1 55 70 80 100 120 160 ns CE2 to end of write tCW2 55 70 80 100 120 160 ns /LB, /UB to end of write tBW 55 70 80 100 120 160 ns Address valid to end of write tAW 55 70 80 100 120 160 ns Address setup time tAS 0 0 0 0 0 0 ns Write pulse width tWP 50 55 60 85 100 140 ns Write recovery time tWR 0 0 0 0 0 0 ns Data valid to end of write tDW 30 35 40 60 80 100 ns Data hold time tDH 0 0 0 0 0 0 ns /WE to output in high impedance tWHZ Output active from end of write tOW 25 5 30 5 35 5 40 5 50 5 70 5 ns Note ns Note The output load is 1TTL + 5 pF. Data Sheet M14274EJ4V0DS00 11 µPD442012L-X Write Cycle Timing Chart 1 (/WE Controlled) tWC Address (Input) tCW1 /CE1 (Input) tCW2 CE2 (Input) tAW tAS tWP tWR /WE (Input) tBW /LB, /UB (Input) tOW tWHZ I/O (Input / Output) Indefinite data out tDW High impedance tDH Data in High impedance Indefinite data out Cautions 1. During address transition, at least one of pins /CE1, CE2, /WE should be inactivated. ★ 2. Do not input data to the I/O pins while they are in the output state. Remarks 1. Write operation is done during the overlap time of a low level /CE1, /WE, /LB and/or /UB, and a high level CE2. 2. If /CE1 changes to low level at the same time or after the change of /WE to low level, or if CE2 changes to high level at the same time or after the change of /WE to low level, the I/O pins will remain high impedance state. 3. When /WE is at low level, the I/O pins are always high impedance. When /WE is at high level, read operation is executed. Therefore /OE should be at high level to make the I/O pins high impedance. 12 Data Sheet M14274EJ4V0DS00 µPD442012L-X Write Cycle Timing Chart 2 (/CE1 Controlled) tWC Address (Input) tAS tCW1 /CE1 (Input) tCW2 CE2 (Input) tAW tWP tWR /WE (Input) tBW /LB, /UB (Input) tDW High impedance Data in I/O (Input) tDH High impedance Cautions 1. During address transition, at least one of pins /CE1, CE2, /WE should be inactivated. ★ 2. Do not input data to the I/O pins while they are in the output state. Remark Write operation is done during the overlap time of a low level /CE1, /WE, /LB and/or /UB, and a high level CE2. Data Sheet M14274EJ4V0DS00 13 µPD442012L-X Write Cycle Timing Chart 3 (CE2 Controlled) tWC Address (Input) tCW1 /CE1 (Input) tAS tCW2 CE2 (Input) tAW tWP tWR /WE (Input) tBW /LB, /UB (Input) tDW High impedance I/O (Input) Data in tDH High impedance Cautions 1. During address transition, at least one of pins /CE1, CE2, /WE should be inactivated. ★ 2. Do not input data to the I/O pins while they are in the output state. Remark Write operation is done during the overlap time of a low level /CE1, /WE, /LB and/or /UB, and a high level CE2. 14 Data Sheet M14274EJ4V0DS00 µPD442012L-X Write Cycle Timing Chart 4 (/LB, /UB Controlled) tWC Address (Input) tCW1 /CE1 (Input) tCW2 CE2 (Input) tAW tWP tWR /WE (Input) tAS tBW /LB, /UB (Input) tDW High impedance I/O (Input) Data in tDH High impedance Cautions 1. During address transition, at least one of pins /CE1, CE2, /WE should be inactivated. ★ 2. Do not input data to the I/O pins while they are in the output state. Remark Write operation is done during the overlap time of a low level /CE1, /WE, /LB and/or /UB, and a high level CE2. Data Sheet M14274EJ4V0DS00 15 µPD442012L-X Low VCC Data Retention Characteristics (TA = –25 to +85 °C) Parameter Symbol VCC ≥ 2.7 V VCC ≥ 2.2 V VCC ≥ 1.8 V µPD442012L -B××X µPD442012L -C××X µPD442012L -D××X Test Condition Unit MIN. TYP. MAX. MIN. TYP. MAX. MIN. TYP. MAX. Data retention supply voltage Data retention supply current Chip deselection to data retention mode Operation recovery time VCCDR1 /CE1 ≥ VCC − 0.2 V, CE2 ≥ VCC − 0.2 V 2.0 3.6 1.5 3.6 1.5 3.6 VCCDR2 CE2 ≤ 0.2 V 2.0 3.6 1.5 3.6 1.5 3.6 VCCDR3 /LB = /UB ≥ VCC − 0.2 V, /CE1 ≤ 0.2 V, CE2 ≥ VCC − 0.2 V 2.0 3.6 1.5 3.6 1.5 3.6 ICCDR1 VCC = 3.0 V, /CE1 ≥ VCC − 0.2 V, CE2 ≥ VCC − 0.2 V or CE2 ≤ 0.2 V 0.3 4 0.3 4 0.3 4 ICCDR2 VCC = 3.0 V, CE2 ≤ 0.2 V 0.3 4 0.3 4 0.3 4 ICCDR3 VCC = 3.0 V, /LB = /UB ≥ VCC − 0.2 V, /CE1 ≤ 0.2 V, CE2 ≥ VCC − 0.2 V 0.3 4 0.3 4 0.3 4 µA tCDR 0 0 0 ns tR tRCNote tRCNote tRCNote ns Note tRC : Read cycle time 16 V Data Sheet M14274EJ4V0DS00 µPD442012L-X Data Retention Timing Chart (1) /CE1 Controlled tCDR ★ Data retention mode tR VCC VCC (MIN.) Note /CE1 VIH (MIN.) VCCDR (MIN.) /CE1 ≥ VCC – 0.2 V VIL (MAX.) GND Note B version : 2.7 V, C version : 2.2 V, D version : 1.8 V Remark On the data retention mode by controlling /CE1, the input level of CE2 must be ≥ VCC − 0.2 V or≤ 0.2 V. The other pins (Address, I/O, /WE, /OE, /LB, /UB) can be in high impedance state. (2) CE2 Controlled tCDR ★ Data retention mode tR VCC VCC (MIN.) Note VIH (MIN.) VCCDR (MIN.) CE2 VIL (MAX.) CE2 ≤ 0.2 V GND Note B version : 2.7 V, C version : 2.2 V, D version : 1.8 V Remark On the data retention mode by controlling CE2, the other pins (/CE1, Address, I/O, /WE, /OE, /LB, /UB) can be in high impedance state. Data Sheet M14274EJ4V0DS00 17 µPD442012L-X (3) /LB, /UB Controlled tCDR ★ Data retention mode tR VCC Note VCC (MIN.) /LB, /UB VIH (MIN.) VCCDR (MIN.) /LB, /UB ≥ VCC – 0.2 V VIL (MAX.) GND Note B version : 2.7 V, C version : 2.2 V, D version : 1.8 V Remark On the data retention mode by controlling /LB and /UB, the input level of /CE1 and CE2 must be ≥ VCC − 0.2 V or ≤ 0.2 V. The other pins (Address, I/O, /WE, /OE) can be in high impedance state. 18 Data Sheet M14274EJ4V0DS00 µPD442012L-X ★ Package Drawing 48-PIN PLASTIC TSOP(I) (12x18) 1 detail of lead end 48 F G R Q 24 L 25 S E P I A J C S D K N B M M S NOTES ITEM MILLIMETERS 1. Each lead centerline is located within 0.10 mm of its true position (T.P.) at maximum material condition. A 12.0±0.1 B 0.45 MAX. 2. "A" excludes mold flash. (Includes mold flash : 12.4 mm MAX.) C 0.5 (T.P.) D 0.22±0.05 E 0.1±0.05 F 1.2 MAX. G 1.0±0.05 I 16.4±0.1 J 0.8±0.2 K 0.145±0.05 L 0.5 M 0.10 N 0.10 P 18.0±0.2 Q +5° 3° −3° R S 0.25 0.60±0.15 S48GY-50-MJH1-1 Data Sheet M14274EJ4V0DS00 19 µPD442012L-X Recommended Soldering Conditions Please consult with our sales offices for soldering conditions of the µPD442012L-X. ★ Types of Surface Mount Device µPD442012LGY-BxxX-MJH: 48-PIN PLASTIC TSOP (I) (12×18) (Normal bent) µPD442012LGY-CxxX-MJH: 48-PIN PLASTIC TSOP (I) (12×18) (Normal bent) µPD442012LGY-DxxX-MJH: 48-PIN PLASTIC TSOP (I) (12×18) (Normal bent) 20 Data Sheet M14274EJ4V0DS00 µPD442012L-X [ MEMO ] Data Sheet M14274EJ4V0DS00 21 µPD442012L-X [ MEMO ] 22 Data Sheet M14274EJ4V0DS00 µPD442012L-X NOTES FOR CMOS DEVICES 1 PRECAUTION AGAINST ESD FOR SEMICONDUCTORS Note: Strong electric field, when exposed to a MOS device, can cause destruction of the gate oxide and ultimately degrade the device operation. Steps must be taken to stop generation of static electricity as much as possible, and quickly dissipate it once, when it has occurred. Environmental control must be adequate. When it is dry, humidifier should be used. It is recommended to avoid using insulators that easily build static electricity. Semiconductor devices must be stored and transported in an anti-static container, static shielding bag or conductive material. All test and measurement tools including work bench and floor should be grounded. The operator should be grounded using wrist strap. Semiconductor devices must not be touched with bare hands. Similar precautions need to be taken for PW boards with semiconductor devices on it. 2 HANDLING OF UNUSED INPUT PINS FOR CMOS Note: No connection for CMOS device inputs can be cause of malfunction. If no connection is provided to the input pins, it is possible that an internal input level may be generated due to noise, etc., hence causing malfunction. CMOS devices behave differently than Bipolar or NMOS devices. Input levels of CMOS devices must be fixed high or low by using a pull-up or pull-down circuitry. Each unused pin should be connected to V DD or GND with a resistor, if it is considered to have a possibility of being an output pin. All handling related to the unused pins must be judged device by device and related specifications governing the devices. 3 STATUS BEFORE INITIALIZATION OF MOS DEVICES Note: Power-on does not necessarily define initial status of MOS device. Production process of MOS does not define the initial operation status of the device. Immediately after the power source is turned ON, the devices with reset function have not yet been initialized. Hence, power-on does not guarantee out-pin levels, I/O settings or contents of registers. Device is not initialized until the reset signal is received. Reset operation must be executed immediately after power-on for devices having reset function. Data Sheet M14274EJ4V0DS00 23 µPD442012L-X • The information in this document is current as of July, 2000. The information is subject to change without notice. For actual design-in, refer to the latest publications of NEC's data sheets or data books, etc., for the most up-to-date specifications of NEC semiconductor products. Not all products and/or types are available in every country. Please check with an NEC sales representative for availability and additional information. • No part of this document may be copied or reproduced in any form or by any means without prior written consent of NEC. NEC assumes no responsibility for any errors that may appear in this document. • NEC does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from the use of NEC semiconductor products listed in this document or any other liability arising from the use of such products. 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