FUJITSU SEMICONDUCTOR DATA SHEET DS04-21355-1E ASSP Single Serial Input PLL Frequency Synthesizer On-Chip 2.5 GHz prescaler MB15E07L ■ DESCRIPTION The Fujitsu MB15E07L is serial input Phase Locked Loop (PLL) frequency synthesizer with a 2.5 GHz prescaler. A 32/33 or a 64/65 can be selected for the prescaler that enables pulse swallow operation. The latest BiCMOS process technology is used, resuItantly a supply current is limited as low as 4.5 mA typ. This operates with a supply voltage of 3.0 V (typ.) Furthermore, a super charger circuit is included to get a fast tuning as well as low noise performance. As a result of this, MB15E07L is ideally suitable for digital mobile communications, such as GSM (Global System for Mobile Communications). ■ FEATURES • High frequency operation: 2.5 GHz max. (@ P = 64/65) 2.0 GHz max. (@ P = 32/33) • Low power supply voltage: VCC = 2.7 to 3.6 V • Very Low power supply current: ICC = 4.5 mA typ. (VCC = 3 V) • Power saving function: IPS = 0.1 µA typ. (VCC = 3 V) • Pulse swallow function: 32/33 or 64/65 • Serial input 14-bit programmable reference divider: R = 5 to 16,383 • Serial input 18-bit programmable divider consisting of: - Binary 7-bit swallow counter: 0 to 127 - Binary 11-bit programmable counter: 5 to 2,047 • Wide operating temperature: Ta = –40 to +85°C • Plastic 16-pin SSOP package (FPT-16P-M05) and 16-pads BCC package (LCC-16P-M02) ■ PACKAGES 16-pin, plastic SSOP (FPT-16P-M05) 16-pads, plastic BCC (LCC-16P-M02) MB15E07L ■ PIN ASSIGNMENTS SSOP-16 pin OSCIN 1 16 φR OSCOUT 2 15 φP VP 3 14 LD/fout VCC 4 13 ZC DO 5 12 PS GND 6 11 LE Xfin 7 10 Data fin 8 9 Clock Top View (FPT-16P-M05) BCC-16 pads OSCIN φR OSCOUT 1 VP 2 VCC 3 DO 4 GND 5 Xfin 6 16 15 Top view 7 8 fin Clock (LCC-16P-M02) 2 14 φP 13 LD/fout 12 ZC 11 PS 10 LE 9 Data MB15E07L ■ PIN DESCRIPTIONS Pin no. SSOP-16 BCC-16 Pin name I/O Descriptions 1 16 OSCIN I Programmable reference divider input. Oscillator input. Connection for an crystal or a TCXO. TCXO should be connected with a coupling capacitor. 2 1 OSCOUT O Oscillator output. Connection for an external crystal. 3 2 VP – Power supply voltage input for the charge pump. 4 3 VCC – Power supply voltage input. 5 4 DO O Charge pump output. Phase of the charge pump can be reversed by FC bit. 6 5 GND – Ground. 7 6 Xfin I Prescaler complementary input, and should be grounded via a capacitor. 8 7 fin I Prescaler input. Connection with an external VCO should be done with AC coupling. 9 8 Clock I Clock input for the 19-bit shift register. Data is shifted into the shift register on the rising edge of the clock. (Open is prohibited.) 10 9 Data I Serial data input using binary code. The last bit of the data is a control bit. (Open is prohibited.) Control bit = “H” ; Data is transmitted to the programmable reference counter. Control bit = “L” ; Data is transmitted to the programmable counter. 11 10 LE I Load enable signal input (Open is prohibited.) When LE is high, the data in the shift register is transferred to a latch, according to the control bit in the serial data. I Power saving mode control. This pin must be set at “L” at Power-ON. (Open is prohibited.) PS = “H” ; Normal mode PS = “L” ; Power saving mode I Forced high-impedance control for the charge pump (with internal pull up resistor.) ZC = “H” ; Normal DO output. ZC = “L” ; DO becomes high impedance. 12 13 11 12 PS ZC 14 13 LD/fout O Lock detect signal output (LD)/phase comparator monitoring output (fout). The output signal is selected by LDS bit in the serial data. LDS = “H” ; outputs fout (fr/fp monitoring output) LDS = “L” ; outputs LD (“H” at locking, ”L” at unlocking.) 15 14 φP O Phase comparator output for an external charge pump. Nch open drain output. 16 15 φR O Phase comparator output for an external charge pump. CMOS output. 3 MB15E07L ■ BLOCK DIAGRAM OSCIN 1 fr Crystal oscillator circuit fp Programmable reference divider OSCOUT 2 Lock detector fr Intermittent mode control (power save) SW 17-bit latch LE LE 11 14-bit latch 16 φR 15 φP LD Binary 14-bit reference counter PS 12 Phase comparator LDS FC LD/fr/fp selector 3-bit latch 14 LD/fout fp 1-bit control latch 19-bit shift register C N T Data 10 13 ZC 19-bit shift register Super charger Clock 9 5 DO 18-bit latch LE 7-bit latch 11-bit latch SW Programmable divider Xfin 7 fin 8 Prescaler 32/33, 64/65 Binary 7-bit swallow counter Binary 11-bit programmable counter GND 6 VCC 4 Note: SSOP-16 pin 4 3 VP MD Control circuit fp MB15E07L ■ ABSOLUTE MAXIMUM RATINGS Parameter Symbol Rating Unit Remark Min. Max. VCC –0.5 +4.0 V VP VCC +6.0 V Input voltage VI –0.5 VCC +0.5 V Output voltage VO –0.5 VCC +0.5 V IO –10 +10 mA Except DO output Ido –25 +25 mA DO output Tstg –55 +125 °C Power supply voltage Output current Storage temperature WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current, temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings. ■ RECOMMENDED OPERATING CONDITIONS Parameter Symbol Value Unit Min. Typ. Max. VCC 2.7 3.0 3.6 V VP VCC – 6.0 V Input voltage VI GND – VCC V Operating temperature Ta –40 – +85 °C Power supply voltage Remark WARNING: Recommended operating conditions are normal operating ranges for the semiconductor device. All the device’s electrical characteristics are warranted when operated within these ranges. Always use semiconductor devices within the recommended operating conditions. Operation outside these ranges may adversely affect reliability and could result in device failure. No warranty is made with respect to uses, operating conditions, or combinations not represented on the data sheet. Users considering application outside the listed conditions are advised to contact their FUJITSU representative beforehand. HandIing Precautions • This device should be transported and stores in anti-static containers. • This is a static-sensitive device; take proper anti-ESD precautions. Ensure that personnel and equipment are properly grounded. Cover workbenches with grounded conductive mats. • Always turn the power supply off before inserting or removing the device from its socket. • Protect leads with a conductive sheet when handling or transporting PC boards with devices. 5 MB15E07L ■ ELECTRICAL CHARACTERISTICS Parameter Symbol Condition Power supply current*1 ICC*1 fin = 2500 MHz, fosc = 12 MHz, P = 64/65 – 4.5 – mA Power saving current Ips*2 ZC = “H” or open – – 10 µA Operating frequency fin P = 32/33 100 – 2000 P = 64/65 100 – 2500 3 – 40 MHz –10 – +2 dBm VP-P Crystal oscillator operating frequency Input sensitivity Input voltage Input current fOSC min. 500 mVP-P fin*3 Vfin 50 Ω system (Refer to the test circuit.) OSCIN*3 VOSC – 0.5 – VCC Data, Clock, LE, PS, ZC VIH – VCC × 0.7 – – VIL – – – VCC × 0.3 Data, Clock, LE, PS IIH*4 – –1.0 – +1.0 IIL*4 – –1.0 – +1.0 IIH*4 – –1.0 – +1.0 –100 – 0 ZC OSCIN Output voltage High impedance cutoff current *4 IIL IIH – 0 – +100 IIL*4 – –100 – 0 – – 0.4 VCC – 0.4 – – – – 0.4 VP – 0.4 – – VOL Open drain output φR, LD/fout VOH VCC = 3 V, IOH = –1 mA VOL VCC = 3 V, IOL = 1 mA MHz V µA µA µA V V VDOH VCC = 3 V, IOH = –1 mA VDOL VCC = 3 V, IOL = 1 mA – – 0.4 DO IOFF VCC = 3 V, VP = 6 V VOOP = GND to 6 V – – 3.0 nA φP IOL Open drain output 1.0 – – mA φR, LD/fout *4 IOH – –1.0 – – IOL – – – 1.0 VCC = 3 V, VP = 3 V, VDOH = 2.0 V, Ta = +25°C –11 – –6 VCC = 3 V, VP = 3 V VDOL = 1.0 V, Ta = +25°C 8 Output current IDOH*4, 5 DO IDOL *1: *2: *3: *4: *5: Pull up input φP DO 6 (VCC = 2.7 to 3.6 V, Ta = –40 to +85°C) Value Unit Min. Typ. Max. *4 Conditions; VCC = 3.0 V, Ta = +25°C, in locking state. VCC = 3.0 V, fosc = 12.8 MHz, Ta = +25°C, in power saving mode. AC coupling with a 1000 pF capacitor connected. The symbol “–” (minus) means direction of current flow. Ta = +25°C V mA mA – 15 MB15E07L ■ FUNCTION DESCRIPTIONS 1. Pulse Swallow Function The divide ratio can be calculated using the following equation: fVCO = [(M × N) + A] × fOSC ÷ R (A < N) fVCO : Output frequency of external voltage controlled oscillator (VCO) N : Preset divide ratio of binary 11-bit programmable counter (5 to 2,047) A : Preset divide ratio of binary 7-bit swallow counter (0 ≤ A ≤ 127) fOSC : Output frequency of the reference frequency oscillator R : Preset divide ratio of binary 14-bit programmable reference counter (5 to 16,383) M : Preset divide ratio of modules prescaler (32 or 64) 2. Serial Data Input Serial data is processed using the Data, Clock, and LE pins. Serial data controls the programmable reference divider and the programmable divider separately. Binary serial data is entered through the Data pin. One bit of data is shifted into the shift register on the rising edge of the clock. When the load enable pin is high, stored data is latched according to the control bit data as follows: Table.1 Control Bit Control bit (CNT) Destination of serial data H 17 bit latch (for the programmable reference divider) L 18 bit latch (for the programmable divider) (1) Shift register configuration Programmable reference counter MSB Data flow LSB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 C N T R 1 R 2 R 3 R 4 R 5 R 6 R 7 R 8 R 9 R 10 R 11 R 12 R 13 R 14 SW FC LDS CNT R1 to R14 SW FC LDS 16 : Control bit : Divide ratio setting bit for the programmable reference counter (5 to 16,383) : Divide ratio setting bit for the prescaler (32/33 or 64/65) : Phase control bit for the phase comparator : LD/fout signal select bit 17 18 [Table. 1] [Table. 2] [Table. 5] [Table. 7] [Table. 6] Note: Start data input with MSB first 7 MB15E07L Programmable reference counter MSB Data flow LSB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 C N A 1 A 2 A 3 A 4 A 5 A 6 A 7 N 1 N 2 N 3 N 4 N 5 N 6 N 7 N 8 N 9 N 10 N 11 T CNT : Control bit N1 to N11 : Divide ratio setting bits for the programmable counter (5 to 2,047) A1 to A7 : Divide ratio setting bits for the swallow counter (0 to 127) [Table. 1] [Table. 3] [Table. 4] Note: Start data input with MSB first Table.2 Binary 14-bit Programmable Reference Counter Data Setting Divide ratio (R) R 14 R 13 R 12 R 11 R 10 R 9 R 8 R 7 R 6 R 5 R 4 R 3 R 2 R 1 5 0 0 0 0 0 0 0 0 0 0 0 1 0 1 6 0 0 0 0 0 0 0 0 0 0 0 1 1 0 ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ 16383 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Note: • Divide ratio less than 5 is prohibited. Table.3 Binary 11-bit Programmable Counter Data Setting Divide ratio (N) N 11 N 10 N 9 N 8 N 7 N 6 N 5 N 4 N 3 N 2 N 1 5 0 0 0 0 0 0 0 0 1 0 1 6 0 0 0 0 0 0 0 0 1 1 0 ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ 2047 1 1 1 1 1 1 1 1 1 1 1 Note: • Divide ratio less than 5 is prohibited. 8 MB15E07L Table.4 Binary 7-bit Swallow Counter Data Setting Divide ratio (A) A 7 A 6 A 5 A 4 A 3 A 2 A 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ 127 1 1 1 1 1 1 1 Table.5 Prescaler Data Setting SW Prescaler divide ratio H 32/33 L 64/65 Table.6 LD/fout Output Select Data Setting LDS LD/fout output signal H fout signal L LD signal (2) Relation between the FC input and phase characteristics The FC bit changes the phase characteristics of the phase comparator. Both the internal charge pump output level (DO) and the phase comparator output (φR, φP) are reversed according to the FC bit. Also, the monitor pin (fout) output is controlled by the FC bit. The relationship between the FC bit and each of DO, φR, and φP is shown below. Table.7 FC Bit Data Setting (LDS = “H”) FC = High FC = Low DO φR φP fr > fp H L L fr < fp L H Z* fr = fp Z* L Z* LD/fout fout = fr DO φR φP L H Z* H L L Z* L Z* LD/fout fout = fp * : High impedance 9 MB15E07L When designing a synthesizer, the FC pin setting depends on the VCO and LPF characteristics. ∗: When the LPF and VCO characteristics are (1) similar to (1), set FC bit high. ∗: When the VCO characteristics are similar to (2), set FC bit low. VCO output frequency PLL LPF VCO (2) LPF input voltage Table.8 PS Pin Setting PS pin Status H Normal mode L Power saving mode Table.9 ZC Pin Setting ZC pin 10 DO output H Normal output L High impedance MB15E07L 3. Power Saving Mode (Intermittent Mode Control Circuit) Setting a PS pin to Low, the IC enters into power saving mode resultatly current consumption can be limited to 10 µA (max.). Setting PS pin to High, power saving mode is released so that the IC works normally. In addition, the intermittent operation control circuit is included which helps smooth start up from the power saving mode. In general, the power consumption can be saved by the intermittent operation that powering down or waking up the synthesizer. Such case, if the PLL is powered up uncontrolled, the resulting phase comparator output signal is unpredictable due to an undefined phase relation between reference frequency (fr) and comparison frequency (fp) and may in the worst case take longer time for lock up of the loop. To prevent this, the intermittent operation control circuit enforces a limited error signal output of the phase detector during power up, thus keeping the loop locked. During the power saving mode, the corresponding section except for indispensable circuit for the power saving function stops working, then current consumption is reduced to 10 µA (max.). Note: • While the power saving mode is executed, ZC pin should be set at “H” or open. If ZC is set at “L” during power saving mode, approximately 10 µA current flows. • PS pin must be set “L” at Power-ON. • The power saving mode can be released (PS : L → H) 1µs later after power supply remains stable. • During the power saving mode, it is possible to input the serial data. ON VCC Clock Data LE PS (1) (2) (3) (1) PS = L (power saving mode) at Power-ON (2) Set serial data after power supply remains stable. (3) Relase power saving mode (PS : L → H) after setting serial data. 11 MB15E07L 4. Serial Data Input Timing 1st. data 2nd. data Control bit Invalid data ~ LSB MSB Data ~ ~ Clock t1 t3 t2 t6 t7 LE ~ t4 t5 On rising edge of the clock, one bit of the data is transferred into the shift register. 12 Parameter Min. t1 20 t2 Typ. Max. Unit Parameter – – ns t5 100 20 – – ns t6 t3 30 – – ns t7 t4 30 – – ns Min. Typ. Max. Unit – – ns 20 – – ns 100 – – ns MB15E07L ■ PHASE COMPARATOR OUTPUT WAVEFORM fr fp tWU tWL LD [ FC = “H” ] φP φR H DO Z L [ FC = “L” ] φP φR H DO L Z Notes: 1. Phase error detection range: –2π to +2π 2. Pulses on DO output signal during locked state are output to prevent dead zone. 3. LD output becomes low when phase is tWU or more. LD output becomes high when phase error is tWL or less and continues to be so for three cycles or more. 4. tWU and tWL depend on OSCIN input frequency. tWU > 4/fosc (e. g. tWU > 312.5 ns, foscin = 12.8 MHz) tWL < 8/fosc (e. g. tWL < 625.0 ns, foscin = 12.8 MHz) 5. LD becomes high during the power saving mode (PS = “L”.) 13 MB15E07L ■ TYPICAL CHARACTERISTICS 1. fin Input Sensitivity Input frequency vs. Input sensitivity (Prescaler = 64/65) (dBm) +10 Ta = +25°C ,,,,,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,,,,,, Input sensitivity (V fin) 0 SPEC –10 –20 VCC = 2.7 V VCC = 3.0 V VCC = 3.6 V –30 –40 0 1000 3000 (MHz) 2000 Input frequency (fin) Input frequency vs. Input sensitivity (Prescaler = 32/33) (dBm) +10 ,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,, Input sensitivity (V fin) 0 Ta = +25°C SPEC –10 –20 VCC = 2.7 V VCC = 3.0 V VCC = 3.6 V –30 –40 0 1000 2000 Input frequency (fin) 14 3000 (MHz) MB15E07L 2. OSCIN Input Sensitivity (dBm) +10 ,,,,,, ,,,,,, ,,,,,, Input frequency vs. Input sensitivity SPEC Input sensitivity (VOSC) 0 Ta = +25°C –10 –20 –30 VCC = 2.7 V VCC = 3.0 V VCC = 3.6 V –40 0 50 100 150 (MHz) Input frequency (fosc) 15 MB15E07L 3. DO Output Current IOH vs. VOH (V) 5.000 Ta = +25°C VCC = 3.0 V VP = 3.0 V, 5.0 V VOH .5000 /div .0000 .0000 IDO 2.500/div (mA) IOH IOL vs. VOL (V) 5.000 Ta = +25°C VCC = 3.0 V VP = 3.0 V, 5.0 V VOL .5000 /div .0000 .0000 IDO 2.500/div IOL 16 (mA) –25.00 –25.00 MB15E07L 4. fin Input Impedance 1; 10.715 Ω –50.275 Ω 1 GHz 2; 11.118 Ω –10.846 Ω 1.5 GHz 4 3 3; 16.718 Ω 20.081 Ω 2 GHz 4; 43.439 Ω 38.307 Ω 2.5 GHz 2 1 5. OSCIN Input Impedance 1; 4.656 kΩ –19.064 kΩ 3 MHz 2; 704.75 Ω –5.3735 kΩ 10 MHz 3; 388.25 Ω –2.775 kΩ 20 MHz 4; 136.38 Ω –1.5275 kΩ 40 MHz 4 1 2 3 17 MB15E07L ■ TEST CIRCUIT (FOR MEASURING INPUT SENSITIVITY fin/OSCIN) VCC VP 0.1 µF 1000 pF 1000 pF 0.1 µF S•G 50 Ω S•G 1000 pF 8 7 6 5 4 3 2 1 50 Ω 9 10 11 12 13 14 15 16 Oscilloscope Controller (setting divide ratio) Note: SSOP-16 pin 18 VCC MB15E07L ■ APPLICATION EXAMPLE Output LPF VP VCO 10 kΩ 12 kΩ Lock detect. 12 kΩ φR 16 φP 15 10 kΩ LD/fout 14 From a controller ZC 13 PS 12 LE 11 Data Clock 10 9 7 8 MB15E07L 1 2 3 OSCIN OSCOUT 4 VP 5 VCC 6 DO GND Xfin 1000 pF fin 1000 pF X’ tal C1 C2 0.1 µF 0.1 µF C1, C2: Depend on the crystal parameters VP: 6V max. Note: SSOP-16 pin 19 MB15E07L ■ ORDERING INFORMATION 20 Part number Package MB15E07LPFV1 16-pin, plastic SSOP (FPT-16P-M05) MB15E07LPV 16-pads, plastic BCC (LCC-16P-M02) Remarks MB15E07L ■ PACKAGE DIMENSIONS * : These dimensions do not include resin protrusion. 16-pin, plastic SSOP (FPT-16P-M05) +0.20 * 5.00±0.10(.197±.004) 1.25 –0.10 +.008 .049 –.004 (Mounting height) 0.10(.004) INDEX *4.40±0.10 (.173±.004) 0.65±0.12 (.0256±.0047) 4.55(.179)REF C 1994 FUJITSU LIMITED F16013S-2C-4 +0.10 0.22 –0.05 +.004 .009 –.002 6.40±0.20 (.252±.008) 5.40(.213) NOM "A" +0.05 0.15 –0.02 +.002 .006 –.001 Details of "A" part 0.10±0.10(.004±.004) (STAND OFF) 0 10° 0.50±0.20 (.020±.008) Dimensions in mm (inches) (Continued) 21 MB15E07L (Continued) 16-pins, plastic BCC (LCC-16P-M02) 4.55±0.10 (.179±.004) 14 * : These dimensions do not include resin protrusion. 3.40(.134)TYP 0.80(.032)MAX 9 (Mouting height) 0.65(.026)TYP 9 14 0.40±0.10 (.016±.004) 2.45(.096) TYP 3.40±0.10 (.1339±.0039) 45˚ "A" 1.15(.045)TYP "B" 0.80(.032) TYP 1 E-MARK 6 0.40(.016) 0.325±0.10 (.013±.004) 6 0.085±0.04 (.003±.002) (STAND OFF) Details of "A" part 0.05(.002) 22 1996 FUJITSU LIMITED C16013S-1C-1 1 Details of "B" part 0.75±0.10 (.030±.004) 0.40±0.10 (.016±.004) C 1.725(.068) TYP 0.60±0.10 (.024±.004) 0.60±0.10 (.024±.004) Dimensions in mm (inches) MB15E07L FUJITSU LIMITED For further information please contact: Japan FUJITSU LIMITED Corporate Global Business Support Division Electronic Devices KAWASAKI PLANT, 4-1-1, Kamikodanaka Nakahara-ku, Kawasaki-shi Kanagawa 211-88, Japan Tel: (044) 754-3753 Fax: (044) 754-3329 http://www.fujitsu.co.jp/ North and South America FUJITSU MICROELECTRONICS, INC. Semiconductor Division 3545 North First Street San Jose, CA 95134-1804, U.S.A. Tel: (408) 922-9000 Fax: (408) 922-9179 Customer Response Center Mon. – Fri.: 7 am – 5 pm (PST) Tel: (800) 866-8608 Fax: (408) 922-9179 http://www.fujitsumicro.com/ Europe FUJITSU MIKROELEKTRONIK GmbH Am Siebenstein 6-10 D-63303 Dreieich-Buchschlag Germany Tel: (06103) 690-0 Fax: (06103) 690-122 http:.//www.fujitsu-ede.com/ Asia Pacific FUJITSU MICROELECTRONICS ASIA PTE. LIMITED #05-08, 151 Lorong Chuan New Tech Park Singapore 556741 Tel: (65) 281 0770 Fax: (65) 281 0220 http://www.fmap.com.sg/ F9710 FUJITSU LIMITED All Rights Reserved. The contents of this document are subject to change without notice. Customers are advised to consult with FUJITSU sales representatives before ordering. The information and circuit diagrams in this document presented as examples of semiconductor device applications, and are not intended to be incorporated in devices for actual use. Also, FUJITSU is unable to assume responsibility for infringement of any patent rights or other rights of third parties arising from the use of this information or circuit diagrams. FUJITSU semiconductor devices are intended for use in standard applications (computers, office automation and other office equipment, industrial, communications, and measurement equipment, personal or household devices, etc.). CAUTION: Customers considering the use of our products in special applications where failure or abnormal operation may directly affect human lives or cause physical injury or property damage, or where extremely high levels of reliability are demanded (such as aerospace systems, atomic energy controls, sea floor repeaters, vehicle operating controls, medical devices for life support, etc.) are requested to consult with FUJITSU sales representatives before such use. The company will not be responsible for damages arising from such use without prior approval. Any semiconductor devices have inherently a certain rate of failure. You must protect against injury, damage or loss from such failures by incorporating safety design measures into your facility and equipment such as redundancy, fire protection, and prevention of over-current levels and other abnormal operating conditions. If any products described in this document represent goods or technologies subject to certain restrictions on export under the Foreign Exchange and Foreign Trade Control Law of Japan, the prior authorization by Japanese government should be required for export of those products from Japan. Printed in Japan 23