Samsung SFD-321B/LFHSE floppy drive
Contents
1. SEMA ELECTRONICS CO LTD PAGE 29 FLOPPY DISK DRIVE SPECIFICATION MoDEL 11 GENERAL COMMENT SEMA ELECTRONICS CO LTD SEMA ELECTRONICS CO LTD2. 20ft CONTAINER TO TA 30 S885 ZOJ Q TEN ZOft CONTAINER 2330x11930x2240 SEMA ELECTRONICS CO LTD FLOPPY DISK DRIVE SPECIFICATION moogt MODEL SFD 321B 9 OPTION SELECTION FDD can be modified for different functions than the standard specification These modifications should be implemented by the factory according to the request of the customers 9 1 Trace Options By putting a chip resistor onto a proper trace FDD can be used for the following different functions DSO Activate Drive Select 0 line DS1 Activate Drive Select 1 line DC Activate Disk Change Signal RDY Activate Ready Signal OPA For 3 Mode usage OPB 1 For 1 6MB usage lt Note gt 1 Both OPA and OPB open 2 Mode 1MB 2MB OPB is connected and OPA is open 2 Mode 1MB 1 6MB OPA is connected and OPB is open 3 Mode 1MB 1 6MB 2MB SEMA ELECTRONICS CO LTD FLOPPY DISK DRIVE SPECIFICATION moer 9 2 Other Options Buyer Selection The colors of In Use LED Front Panel the value of the termination resistors and the shape of button can be modified by customers request 9 2 1 Mode 1 2 Mode 1MB 2MB O 3 Mode 1MB 1 6MB 2MB 9 2 2 The Selection of Bezel Type With Bezel Without Bezel 9 2 3 The Color of Bezel Button ole O ey o O Color Number Fill in this blank 9 2 4 The Selection of LED Color
3. eUT FDD OEM MANUAL SFD 321B 3 5inch DUAL DENSITY MICRO FLOPPY DISK DRIVE SPECIFICATIONS SEMA ELECTRONICS CO LTD XiaLingBei HengKeng Management Area Liaobu Town Dongguan City Guangdong Province China SEMA ELECTRONICS CO LTD FLOPPY DISK DRIVE SPECIFICATION moer CONTENTS 1 INTRODUCTION 1 1 Application 1 2 Disk Used 2 GENERAL SPECIFICATIONS 2 1 Performance 2 2 Environmental Conditions 2 3 Reliability 2 4 Power Supply 2 5 Physical Specifications 3 INSTALLATION 4 ELECTRICAL INTERFACE 4 1 Signal Interface 4 2 Power Interface 4 3 Interface Connectors 5 SIGNAL CHARACTERISTICS 5 1 Signal Level 5 2 Recommended Interface Circuit 5 3 Input Signals 5 4 Output Signals 6 TIMING DIAGRAM 6 1 Seek Operation Timing 6 2 Read Write Operation Timing SEMA ELECTRONICS CO LTD FLOPPY DISK DRIVE SPECIFICATION MODEL SFD 321B 7 SAFETY STANDARDS 8 PACKAGING DESCRIPTION 8 1 Label Description 8 2 Packaging Method 8 3 Pallet Dimension and the Method 9 OPTION SELECTION 9 1 Trace Options 9 2 Other Options Buyer Selection 10 GENERAL COMMENT LIST Figure Figure Figure Figure Figure Figure Figure Figure of FIGURES 2 1 Physical Dimensions With Bezel Type 2 2 Physical Dimensions Without Bezel Type 3 1 Installation 4 1 Signal Interface Connector and Cable Side Connector 4 2 Power Interface Connector and Cable Side Connector 4 3 Rear View of FDD 8 1 Pac
4. LOW HIGH HIGH ITEM DENSITY DENSITY DENSITY STANDARD STANDARD OPTION 1MB 2MB 1 6MB Media Operating 800 gr Max ma Ejecting 1300 gr Max Media Ejecting Distance 10 70 mm Acoustic Noise at 50 cm at 3 ms Step Rate 50 dBA Max Read Bit Shift 1300 ns Max 650 ns Max 1 Measured with Brikon 723B on Track 79 with O ns precompensation on both heads Asymmetry 600 ns Max 300 ns Max 1 Measured with Brikon 723B on Track 00 with O ns precompensation on both heads Both R W heads must be radially aligned to all tracks within 0 0200 mm when accessed from either direction Measurement is to be made at normal voltage and normal environmental condition 2342 C and 5045 RH Azimuth Alignment 0 18 Max Radial Alignment O 1300 us Measurement is to be made from the leading edge of index pulse to the beginning of data burst on Track 40 Overwrite Modulation 26 dB or less at Track 00 Read Write Compensation 125ns is recommended Index to Data Burst SEMA ELECTRONICS CO LTD ra a FLOPPY DISK DRIVE SPECIFICATION MODEL 2 2 Environmental Conditions Operating C a Temperature Temperature Gradient C Hr Non operating SE Storage 40 T Max wet bulb temp No condensation Transportation 45 C Max O 90 wet bulb temp Vibration 5 100 Hz frequency range 1 5 G Max 30 min sweep Operating 100 200 Hz freguency range 1 0 G Max cycle Exclude 200 600 Hz freguency ra
5. a Step pulse is received when the drive is selected DRIVE SELECT inserted ejected DISK IN STEP DISK CHANGE 0 5 us Max 0 5 us Max SEMA ELECTRONICS CO LTD FLOPPY DISK DRIVE SPECIFICATION 6 TIMING DIAGRAM 6 1 Seek Operation Timing DRIVE SELECT DIRECTION REVERSE FORWARD SELECT 1 us Min 500 ns Min Min 3 ms Min 10 us Max TRACK 00 6 2 Read Write Operation Timing 650 us M 650 us Min MOTOR ON 600 ms Max EZ is DRIVE SELECT 0 3 ms Max B 2 gt DENSITY SELECT 18 ms Min 100 us Min 3 00 us Min 3 to READ DATA eo miel LETT E TTT 3 WRITE GATE WRITE DATA lt Note gt 1 Turn Around Time is 18 ms Min when Direction is changed 2 750us Min including 100 us Side Select timing 3 When spindle motor speed is changed 300 rpm gt 360 rpm this value is 500 ms Min SEMA ELECTRONICS CO LTD FLOPPY DISK DRIVE SPECIFICATION MODEL 7 SAFETY STANDARDS This drive is approved by the followings CE CSA UL TUV MIC BSMI FCC SEMA ELECTRONICS CO LTD PAGE 24 FLOPPY DISK DRIVE SPECIFICATION MODEL SFD 321B 8 PACKAGING DESCRIPTION 8 1 Label Description 8 1 1 Serial Number Label Marking BAR CODE FBT6 STARBOJ0UO1 5 ee a BE S Product name F FDD 2 Model name B gt SFD 321B 3 Revision name Major Revision name Minor Production division S
6. gt SEMA ELECTRONICS CO LTD Production site China factory Outside supplier SEMA Ghina OEM Production line A A Line B Z Year of manufacturing Marking M n P o R s To Month of manufacturing ae ele lee KRNC NU oe Lee Lee el Consecutive number 8 1 2 Label Description code REV T62 FD 321B 0 7V MADE IN CHINAD LR LR LJ LS e OIO Serial number CSA marking 2 Revision UL marking 3 Buyer name TUV marking 4 Production site MIC marking for only domestic 6 CE marking BSMI marking Label manufacturer identification SEMA ELECTRONICS CO LTD olololo E Q gt GIRI ujulu S o Z ls gaa Cc oP OR ki O 5 m U L G ela lt a m 5g 217 ka oso RQ A ZNSS molo hi wy SLJ S bod mje oli 3 5 To gt U 7 O ij N u ke DY ES men ol 5 aon AZE Z o a nO bee a ee ee U 8 WSA za Pe AEL m x Hu Po ala Va sa al Il B all zolen as in WZ Eo alas Dl nl ZE AXE LU IN x muju Hlo aHa a 2 mo SOOP e fa Y o lt HU aem gt gt 1 Slot zij WILD S m gt E MA Slama l nall oja JS oluk NO L 10 g Me Packagin LO 22 0 pase OU SEMA ELECTRONICS CO LTD WEIGH T fe EE DIZE ETTO OS se KJJOOI se CIO C1100 x 1100 x 1050
7. rising edge of the Step signal 3 ms Min m Mm 0 15 us Min 5 3 6 Write Data MFM Each time this signal changes from HIGH level to LOW level the direction of the current flowing into the R W head is reversed and the data bit is written on the disk 0 15 1 1 us e mla gt le pl TW 4 Ta 0 5 Tb 0 5 Tc 0 5 Density Mode Ta us Tb us Te us Transfer Rate Typ Typ Typ SEMA ELECTRONICS CO LTD PAGE 19 FLOPPY DISK DRIVE SPECIFICATION T MODEL MODEL SFD 321B 5 3 7 Write Gate LOW level of this signal enables the write data to be written on the disk provided that the drive is selected disk used is not write protected and seek operation is completed When this signal changes to HIGH level the read or seek operation becomes possible 5 3 8 Side Select This signal selects the side of Heads Logical HIGH level the lower side side 0 of Heads LOW level the upper side side 1 of Heads 650 us Min WRITE GATE 100 gs Min SIDE SELECT 100 gs Min 100 ws Min READ DATA valid valid valid valid 650 us Min 5 4 Output Signals 5 4 1 Index This is a pulse signal output to indicate the start of the track and it outputs at every revolution of the disk This output signal is activated when only the drive is in Ready state 1 8 ms 200 3 ms 166 7 2 5 ms 1 lt Note gt 1 The value in parenthsis is for 360 rpm 1 6MB Mode rotation speed
8. DEED LET C Top View lt Power Interface Connector FDD gt lt Cable Side Connector HOST gt Fig 4 2 Power Interface Connector and Cable Side Connector SEMA ELECTRONICS CO LTD PAGE 16 MODEL SFD 321B FLOPPY DISK DRIVE SPECIFICATION 5 SIGNAL CHARACTERISTICS 5 1 Signal Level Signal Logic Input Level Output Level 1 Low True 0 9 V Max 0 4 V Max High False 2 2 V Min 2 4 V Min lt Note gt 1 LOW level Max sink current is 48 mA 5 2 Recommended Interface Circuit HOST SIDE Vdd 7438 SERIES CMOS OR M EQUIVALENT 1 kQ CMOS SCHMITT TRIGGER INPUT INPUT 150 2 2 2 ko 1 kQ is recommended s C OUTPUT 74LS14 OPEN DRAIN 74HC14 OR EGUIVALENT FRAME GND SEMA ELECTRONICS CO LTD PAGE 17 FLOPPY DISK DRIVE SPECIFICATION MODEL 5 3 Input Signals 5 3 1 Density Select This siganl is used to distinguish between 1 68MB and 2MB Mode The interface pin No 2 can be used as Density Select Input signal by attaching 0 amp resistor onto OPA short plug when the High density media is inserted The HIGH level designates 2MB Mode and the LOW level designates 1 6MB Mode FDD can tell whether the inserted media is high or Low density by checking the signal coming from mechanical switch which detects the density selecting hole on the media 2 Mode Automatic Switchin 2 0 1 0MB Non connection of OPA 2 0MB If High den
9. SEMA ELECTRONICS CO LTD PAGE 20 FLOPPY DISK DRIVE SPECIFICATION MODEL MODEL SFD 321B 5 4 2 Track 00 LOW level of this signal indicates the head is on Track 00 position and stepping motor is at the specified position respectively 5 4 3 Write Protect When a write protected disk is inserted this signal becomes LOW and the data on the disk is protected from mis erasing and the write operation is inhibited 5 4 4 Read Data MFM Read Data read out from the disk is transferred to the host system in the same form as it was received on the Write Data line Each flux reversal sensed on the disk produces the only transition from HIGH level to LOW level For the seperation of the clock bits from the data the leading edge of a change from HIGH to LOW level is used m am Tat05 Tb40 5 4 Tc 0 5 400 ns 20 Density Mode Mode Ta 15 Tb us Te us Transfer Rate TYP Typ Typ SEMA ELECTRONICS CO LTD PAGE 21 FLOPPY DISK DRIVE SPECIFICATION T MODEL MODEL SFD 321B 5 4 5 Disk Change Readv By selecting proper trace plugs this signal line pin 34 can be used for Readv or Disk Change line Ready This line becomes active LOW when the drive is selected a disk is clamped and the spindle motor is up to speed after counting at least two Index pulses Otherwise this line goes logical HIGH level Disk Change This line is active LOW unless disk is clamped and
10. kaging Method 8 2 Pallet Dimension amp Method PAGE 2 SEMA ELECTRONICS CO LTD PAGE 3 FLOPPY DISK DRIVE SPECIFICATION T MODEL MODEL SFD 321B 1 INTRODUCTION 1 1 Application This manual shall be applied for SAMSUNG SFD 321B double side dual densitv option 3 mode 3 5 inch micro floppv disk drive hereinafter referred to as FDD 1 2 Disk Used 3 5 inch micro floppy disks hereinafter referred to as DISK the use of which will be mutually agreed between the customers and SAMSUNG shall be used SEMA ELECTRONICS CO LTD FLOPPY DISK DRIVE SPECIFICATION vone 2 GENERAL SPECIFICATIONS 2 1 Performance LOW HIGH HIGH DENSITY DENSITY DENSITY STANDARD STANDARD OPTION 1MB 2MB 1 6MB Per Disk Disk 1000 2000 1600 iin MM Capacity 655 4 1310 7 1065 0 26 KBytes Senet er IS Formatted Sector Track 737 3 1474 6 1228 8 15 819 2 1638 4 1310 7 Recording Density BPI Inner Most Track side 1 SE HCA Kase Data Transfer Rate KBits sec MFM recording Number of Heads Track Density TPI 135TPI 5 33 Tracks mm Rotational Speed 300 RPM 360 RPM ITEM Specification 1 KG Max Start Time Time DO 800 ms Max ms Max Track to Track Access Time Time Head 0 Head 1 Offset Head 1 is displaced 8 tracks toward the drive spindle direction SEMA ELECTRONICS CO LTD PAGE 9 FLOPPY DISK DRIVE SPECIFICATION MODEL _SFD 321B
11. nge 0 5 G Max resonant Transportation 5 600 Hz Shock 11 ms Operating half sine wave Transportation 100 G Max SEMA ELECTRONICS CO LTD FLOPPY DISK DRIVE SPECIFICATION MODEL 2 3 Reliability ITEM SPECIFICATION M T B F Mean time between failures E S 0 ma Read Error 1 per 10 bits read Error Rate et REGENEN 1 per 10 bits read E Eror 1 per 10 seeks 1 A soft recoverable error is defined as a successful attempt to read a track of data within 3 retries after a read failure A read retry is defined as an attempt to read the entire track that a read failure occurred on A hard non recoverable error is defined as a failure to read a track of data within 3 retries after a read failure A seek access error is defined as the inability of the drive to seek to a targeted track within 1 retry An access retry is defined as one recalibration with an attempt to seek to the targeted track lt Note gt SEMA ELECTRONICS CO LTD EE FLOPPY DISK DRIVE SPECIFICATION moer 2 4 Power Supply ITEM SPECIFICATION Required Power D C 5 V 10 Allowable Ripple Voltage 100 mV including spike noise Average Current Average Power Operating Mode Typ 5 V 1 0 7 A Typ 0 7 A Typ Current A 0 3 A 500 ms Max 18 ms Max 2 mA Stand by Spindle motor ON Read Seek 2 Write lt Note gt 1 Typical values are specified at 5 0 V 2 Stand by Under the condition that all input lines a
12. re inactive SEMA ELECTRONICS CO LTD e FLOPPY DISK DRIVE SPECIFICATION moer 2 5 Physical Specifications ITEM SPECIFICATION Width mm 101 6 Penn Height mm 25 4 Depth mm 145 0 without Front Bezel Weight gr 460 0 typ Installation Holes Refer to Fig 2 1 and Fig 2 2 SEMA ELECTRONICS CO LTD 165 HEIGH WIDTH REF Tt 25 4 MM 1016 MM 145 0 MM Y Ma TORQUE Max 6kg cm Nd A W On n i i F gt i SN ka i 3 i S l L km y i 3 i 8 i A J d 7 i N i 3 i ta JA i 5 5 2 3 U il z s BEE p l A L i L i om 25 4204 Figure 2 1 Pnysicol Dimensions SEMA ELECTRONICS CO LTD U a S gt E H N vaa U 7 1016 Be DOOR b KI L f HE WID ne Jimensians SEMA ELECTRONICS CO LTD 3 INSTALLATION Installation Direction l a Vertical Horizontal x The other installation directions than
13. sity media is inserted 1 0MB If Low density media is inserted Automatic Switching with Density Select 2 0MB If High density media is inserted with Density Select is HIGH 1 6MB If High density media is inserted with Density Select is LOW 1 0MB If Low density media is inserted Density Select is not available 3 Mode 2 0 1 6 1 0MB Connection of OPA 5 3 2 Drive Select 0 and 1 Two trace plugs on the PCB DSO and DS1 are provided to select which Drive Select line will activate the interface signals for a unique drive in the daisy chain connection up to two drive units Drive Select when activated logical LOW enables all the I O lines except Motor On line This signal also controls the lightening of In Use LED SEMA ELECTRONICS CO LTD PAGE 18 FLOPPY DISK DRIVE SPECIFICATION MODEL MODEL SFD 321B 5 3 3 Motor On Logical LOW level of this signal makes the spindle motor be turned on The motor reaches to the rated rotational speed within 500 ms after this signal changes to LOW This input signal is ignored when no disk is installed 5 3 4 Direction Select This signal specifies the moving direction of the R W head when the Step input is activated Logical LOW level the direction to the inner tracks of a disk HIGH level the direction to the outer tracks of a disk 5 3 5 Step This is a control signal to move the R W head and the head starts moving at the
14. the aboves will be considered separately Figure 3 1 Installation SEMA ELECTRONICS CO LTD FLOPPY DISK DRIVE SPECIFICATION MODEL 4 ELECTRICAL INTERFACE 4 1 Signal Interface Density Select 2 In Use Spare gt 4 Drive Select 3 Spare lig Inde a L o o gt o o TA 8 Drive Select 0 gt 10 Drive Select 1 12 Drive Select 2 Spare gt l 14 HOST Motor On 16 CONTROLLER Direction Select SYSTEM Step Write Data Write Gate Track 00 Write Protect Read Data Side Select Readv Disk Change lt Note gt 1 All odd numbers GND 4 2 Power Interface 5 V HOST B 5 V Return GND CONTROLLER l FDD POWER No Connection GND SFD 321B SUPPLV No Connection SEMA ELECTRONICS CO LTD PAGE 14 FLOPPY DISK DRIVE SPECIFICATION MODEL SFD 321B 4 3 Interface Connectors 4 3 1 Signal Interface Connector FDD HOST Connector HOST Cable lt Note gt 1 33 pins 2 54 pitch Pin 3 5 7 9 13 15 17 19 23 25 27 31 cut off Wall Type 2 Cable length 1m 3 3 feet Max 24 34 PCB 33 PIN NO 3 5 7 9 13 15 17 19 23 25 27 31 Cut off Rear View moa as Top View lt Signal Interface Connector FDD gt lt Cable Side Connector HOST gt Fig 4 1 Signal Interface Connector and Cable Side Connector SEMA ELECTRONICS CO LTD FLOPPY DISK DRIVE SPECIFICATION MODEL MODEL SFD 321B 4 3 2 Power Interface Connector FDD
Download Pdf Manuals
Related Search