Specifications
Page 5
... some extra packages for accidents, back up data. Hitachi does not perform data recovery. 24. Hitachi makes no representations or warranties with pallet to unexpected or accidental power loss during handling or drive failure. Prevent humidity when the drive is correct please feel free to notify us in...The long-term storage without obligation to accidents such as disasters, shock damage during write operation. Recorded data on should not exceed one year. 20. Data may be lost due to notify any damage. 23. K6602637 Rev.3 02.27.01 - 5 - To returning over 100 units,...
... some extra packages for accidents, back up data. Hitachi does not perform data recovery. 24. Hitachi makes no representations or warranties with pallet to unexpected or accidental power loss during handling or drive failure. Prevent humidity when the drive is correct please feel free to notify us in...The long-term storage without obligation to accidents such as disasters, shock damage during write operation. Recorded data on should not exceed one year. 20. Data may be lost due to notify any damage. 23. K6602637 Rev.3 02.27.01 - 5 - To returning over 100 units,...
Specifications
Page 6
... Sequence 4.0 Installation 4.1 Installation Direction 4.2 Mounting HDD 4.2.1 Mounting HDD with Screws 4.2.2 Single HDD Test Condition 4.2.3 Attention for HDD Installation 4.3 Drive Address Setting(DRIVE 0/DRIVE 1) 4.4 Dimensions 5.0 Packing and Handling 5.1 Packing 5.2 Handling 6.0 Interface 6.1 Power Interface 6.2 Physical Interface 6.2.1 Connector 6.2.2 Connector Pin Assignment ... Rev.3 02.27.01 - 6 - Page 2 9 9 10 12 13 13 15 16 17 17 17 17 18 18 19 19 20 21 21 22 23 23 24 25 25 26 26 27 28...
... Sequence 4.0 Installation 4.1 Installation Direction 4.2 Mounting HDD 4.2.1 Mounting HDD with Screws 4.2.2 Single HDD Test Condition 4.2.3 Attention for HDD Installation 4.3 Drive Address Setting(DRIVE 0/DRIVE 1) 4.4 Dimensions 5.0 Packing and Handling 5.1 Packing 5.2 Handling 6.0 Interface 6.1 Power Interface 6.2 Physical Interface 6.2.1 Connector 6.2.2 Connector Pin Assignment ... Rev.3 02.27.01 - 6 - Page 2 9 9 10 12 13 13 15 16 17 17 17 17 18 18 19 19 20 21 21 22 23 23 24 25 25 26 26 27 28...
Specifications
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...time of seek is calculated under the following condition. (Read/Write ratio: Read only) Average of 10,000 random seeks, Voltage 5.0V, Temperature 25°C. Head position is kept on is calculated ...current is measured at power on the same track before this operation occurs, the start up, the drive may have some tolerance after Read/Write operation. When this power transition. *8 : Measured during start... also be under certain conditions of seek is required for possible combustion due to 20 seconds in which the power voltage and the temperature are unloaded. *7: Power mode...
...time of seek is calculated under the following condition. (Read/Write ratio: Read only) Average of 10,000 random seeks, Voltage 5.0V, Temperature 25°C. Head position is kept on is calculated ...current is measured at power on the same track before this operation occurs, the start up, the drive may have some tolerance after Read/Write operation. When this power transition. *8 : Measured during start... also be under certain conditions of seek is required for possible combustion due to 20 seconds in which the power voltage and the temperature are unloaded. *7: Power mode...
Specifications
Page 15
... Rev.3 02.27.01 - 15 - Item Specification DK23CA-30F DK23CA-30/15/75 1 Ambient *1 Operational 5 to 55°C temperature Non-operational -40 to 70°C *2 Temperature gradient Max. 20°C /hour 2 Relative humidity Operational 5 to 90 % Non-operational 5 to 0°C, the drive should be measured at a point 10 mm away from the nameplate of the...
... Rev.3 02.27.01 - 15 - Item Specification DK23CA-30F DK23CA-30/15/75 1 Ambient *1 Operational 5 to 55°C temperature Non-operational -40 to 70°C *2 Temperature gradient Max. 20°C /hour 2 Relative humidity Operational 5 to 90 % Non-operational 5 to 0°C, the drive should be measured at a point 10 mm away from the nameplate of the...
Specifications
Page 16
... noise should be measured through 50 ohm resistor. -External Magnetic Field : Within specifications given in Table 3.1 "Principal Specifications" -Drive Grounding : Drive frame should be grounded to compromise the host system data backup. The grounding current should be operated outside these conditions. -Power on... within twelve hours' power on /off , Standby, Sleep or Low Power Idle modes. The grounding noise should be less than 20% of evaluation, once or more unload operation by Power off , Standby or Sleep is stopped during Standby and Sleep modes. -Operating...
... noise should be measured through 50 ohm resistor. -External Magnetic Field : Within specifications given in Table 3.1 "Principal Specifications" -Drive Grounding : Drive frame should be grounded to compromise the host system data backup. The grounding current should be operated outside these conditions. -Power on... within twelve hours' power on /off , Standby, Sleep or Low Power Idle modes. The grounding noise should be less than 20% of evaluation, once or more unload operation by Power off , Standby or Sleep is stopped during Standby and Sleep modes. -Operating...
Specifications
Page 17
...maximum number of following commands. - Soft Reset does not unload the heads from DK23CA-xx. [Sequence #2]: Check the Status Register, and wait the command complete. ...unload can not be set to over 30 sec by unexpected power down, and is limited to maximum 20,000 times during HDD life. The above normal unload time does not include an emergency unload as Soft...Sec. 3.4.2. 3.4.2 Emergency Unload The emergency unload is occurred by the Host side. [Sequence #3]: Power off the drive Above sequence is required for the Host system at Power off , the heads are limited to maximum 300,000 ...
...maximum number of following commands. - Soft Reset does not unload the heads from DK23CA-xx. [Sequence #2]: Check the Status Register, and wait the command complete. ...unload can not be set to over 30 sec by unexpected power down, and is limited to maximum 20,000 times during HDD life. The above normal unload time does not include an emergency unload as Soft...Sec. 3.4.2. 3.4.2 Emergency Unload The emergency unload is occurred by the Host side. [Sequence #3]: Power off the drive Above sequence is required for the Host system at Power off , the heads are limited to maximum 300,000 ...
Specifications
Page 20
... is placed on an ABS-sheet. It may cause the similar symptom. The HDD should be placed on the soft sponge sheet or slippery hard desk surface, the HDD has unstable conditions such as shown in Figure 4-3. 4.2.2 Single HDD Test Condition To optimize the performance, keep the ... floating by tension of I =7.3X10-4 kg m2 ) HDD X Axis Direction K6602637 Rev.3 02.27.01 ABS-sheet (t = 5mm) Figure 4-3 Single HDD Test Condition - 20 - Material : SS41 with ELP-coat Weight : M=0.66kg (92) Inertia : I=7.3X10 kg m Y Axis Direction Weight SS41 with no movement by external force min. 0.39N...
... is placed on an ABS-sheet. It may cause the similar symptom. The HDD should be placed on the soft sponge sheet or slippery hard desk surface, the HDD has unstable conditions such as shown in Figure 4-3. 4.2.2 Single HDD Test Condition To optimize the performance, keep the ... floating by tension of I =7.3X10-4 kg m2 ) HDD X Axis Direction K6602637 Rev.3 02.27.01 ABS-sheet (t = 5mm) Figure 4-3 Single HDD Test Condition - 20 - Material : SS41 with ELP-coat Weight : M=0.66kg (92) Inertia : I=7.3X10 kg m Y Axis Direction Weight SS41 with no movement by external force min. 0.39N...
Specifications
Page 27
... DA0 35 CS0- 37 DASP- 39 5VDC(Logic) 41 GND(Logic) 43 B JUMPER0 D JUMPER2 F KEY(Removed) 2 GND 4 DD8 6 DD9 8 DD10 10 DD11 12 DD12 14 DD13 16 DD14 18 DD15 20 KEY(Removed) 22 GND 24 GND 26 GND 28 CSEL 30 GND 32 IOCS16- 34 PDIAG- 36 DA2 38 CS1- 40...
... DA0 35 CS0- 37 DASP- 39 5VDC(Logic) 41 GND(Logic) 43 B JUMPER0 D JUMPER2 F KEY(Removed) 2 GND 4 DD8 6 DD9 8 DD10 10 DD11 12 DD12 14 DD13 16 DD14 18 DD15 20 KEY(Removed) 22 GND 24 GND 26 GND 28 CSEL 30 GND 32 IOCS16- 34 PDIAG- 36 DA2 38 CS1- 40...
Specifications
Page 30
...sequential read command is not within this specification, it is available shall use this signal, used for the detail. See Sec. 4.3 " Drive Address Setting (Drive 0/Drive 1)" for DMA data transfers between host and device, when it may cause factional degradations or some errors. The host in the host system.... Description This signal indicates that a device is active or that data is ready to either acknowledge that data has been accepted, or that Drive 1 is present when the power is turned on. DMARQ DMACKJUMPER0,1,2 Pin 39 21 29 PIN-A,B,D I/O type I/O O I /F cable should be no...
...sequential read command is not within this specification, it is available shall use this signal, used for the detail. See Sec. 4.3 " Drive Address Setting (Drive 0/Drive 1)" for DMA data transfers between host and device, when it may cause factional degradations or some errors. The host in the host system.... Description This signal indicates that a device is active or that data is ready to either acknowledge that data has been accepted, or that Drive 1 is present when the power is turned on. DMARQ DMACKJUMPER0,1,2 Pin 39 21 29 PIN-A,B,D I/O type I/O O I /F cable should be no...
Specifications
Page 38
... bytes per track 5 Number of unformatted bytes per sector 6 Number of logical sectors per logical track 7-9 Vendor specific 10-19 Serial number (20 ASCII characters) 20 Buffer type 0000h = Not specified 0001h = Single port single buffer 0002h = Dual port multi-sector buffer 0003h = ... Bit 8 1 = DMA supported Bit 7 - 0 Vendor Specific Value (HEX.) 045Ah See table 6.6 C837h See table 6.6 See table 6.6 0003h DK23CA-15/ 75: 0400h DK23CA-30F/ 30: 1000h 0004h 8010h 0000h 0B00h K6602637 Rev.3 02.27.01 - 38 - 6.3.2.3.1 Identify Device [ECh] The Identify Device command enables the...
... bytes per track 5 Number of unformatted bytes per sector 6 Number of logical sectors per logical track 7-9 Vendor specific 10-19 Serial number (20 ASCII characters) 20 Buffer type 0000h = Not specified 0001h = Single port single buffer 0002h = Dual port multi-sector buffer 0003h = ... Bit 8 1 = DMA supported Bit 7 - 0 Vendor Specific Value (HEX.) 045Ah See table 6.6 C837h See table 6.6 See table 6.6 0003h DK23CA-15/ 75: 0400h DK23CA-30F/ 30: 1000h 0004h 8010h 0000h 0B00h K6602637 Rev.3 02.27.01 - 38 - 6.3.2.3.1 Identify Device [ECh] The Identify Device command enables the...
Specifications
Page 54
6.3.2.6.4 Idle [97h, E3h] This command causes the device to enter to the Idle Mode. The Sector Count Register sets the standby timer value. Sector Count Value SC = 0 0 By the power on default, the Standby timer is disabled.
6.3.2.6.4 Idle [97h, E3h] This command causes the device to enter to the Idle Mode. The Sector Count Register sets the standby timer value. Sector Count Value SC = 0 0 By the power on default, the Standby timer is disabled.
Specifications
Page 88
Figure 6-4 PIO Data Transfer Timing(Mode 4) t0 Addr Valid *1 t1 t2 t9 DIOR-/DIOW- Data Setup 20 t4 DIOW- Data Setup 20 t6 DIOR- Data tristate t7 Addr Valid To IOCS16- to DIOR-/DIOW- Negation (MAX) t9 DIOR-/DIOW- Recovery 25 t3 DIOW- t3 t4 t5 t6 ... bit) or DD0-7(8 bit) SYMBOL Description MIN(ns) t0 Cycle Time 120 t1 Address Valid to Address Valid Hold 10 MAX(ns) 30 40 30 K6602637 Rev.3 02.27.01 - 88 - Data Hold 10 t5 DIOR- Setup 25 t2 DIOR-/DIOW- Data Hold 5 t6Z DIOR- Assertion(MAX) t8 Addr Valid To IOCS16...
Figure 6-4 PIO Data Transfer Timing(Mode 4) t0 Addr Valid *1 t1 t2 t9 DIOR-/DIOW- Data Setup 20 t4 DIOW- Data Setup 20 t6 DIOR- Data tristate t7 Addr Valid To IOCS16- to DIOR-/DIOW- Negation (MAX) t9 DIOR-/DIOW- Recovery 25 t3 DIOW- t3 t4 t5 t6 ... bit) or DD0-7(8 bit) SYMBOL Description MIN(ns) t0 Cycle Time 120 t1 Address Valid to Address Valid Hold 10 MAX(ns) 30 40 30 K6602637 Rev.3 02.27.01 - 88 - Data Hold 10 t5 DIOR- Setup 25 t2 DIOR-/DIOW- Data Hold 5 t6Z DIOR- Assertion(MAX) t8 Addr Valid To IOCS16...
Specifications
Page 89
... DMACK- Hold tS DIOR- Data Setup tH DIOW- to DIOR- / DIOW- MAX(ns) 80 60 Pulse Width tE DIOR- Setup MIN(ns) 240 120 5 35 20 0 0 tD-tE K6602637 Rev.3 02.27.01 - 89 - to release tRD tC MIN(ns) 0 MAX(ns) 35 1250 5 çççç Figure 6-6 Single Word...
... DMACK- Hold tS DIOR- Data Setup tH DIOW- to DIOR- / DIOW- MAX(ns) 80 60 Pulse Width tE DIOR- Setup MIN(ns) 240 120 5 35 20 0 0 tD-tE K6602637 Rev.3 02.27.01 - 89 - to release tRD tC MIN(ns) 0 MAX(ns) 35 1250 5 çççç Figure 6-6 Single Word...
Specifications
Page 90
... tN tJ tZ *3 Data Consists DD(15:0) SYMBOL Description t0 Cycle Time tD DIOR- /DIOW- Data Hold tI DMACK to tristate MIN(ns) 120 70 5 20 20 10 0 5 25 25 25 MAX(ns) 50 35 25 K6602637 Rev.3 02.27.01 - 90 - to DMARQ Delay tM CS(1:0) valid to DMACK Hold tK DIOR...
... tN tJ tZ *3 Data Consists DD(15:0) SYMBOL Description t0 Cycle Time tD DIOR- /DIOW- Data Hold tI DMACK to tristate MIN(ns) 120 70 5 20 20 10 0 5 25 25 25 MAX(ns) 50 35 25 K6602637 Rev.3 02.27.01 - 90 - to DMARQ Delay tM CS(1:0) valid to DMACK Hold tK DIOR...
Specifications
Page 91
...SYMBOL MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX tDVS 70 48 31 20 6.7 4.8 Data valid setup time at sender tDVH 6.2 6.2 6.2 6.2 6.2 4.8 Data valid hold times before driving IORDY tZFS 0 0 0 0 0 35 Time from data output released- Figure 6-8 Initiating .... to-driving until the first transition of critical timing tACK 20 20 20 20 20 20 Setup and hold time at sender tFS 230 200 170 130 120 90 First strobe tUI 0 0 0 0 0 0 Unlimited interlock tAZ 10 10 10 10 10 10 Maximum time allowed for output drivers to -driving until the...
...SYMBOL MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX tDVS 70 48 31 20 6.7 4.8 Data valid setup time at sender tDVH 6.2 6.2 6.2 6.2 6.2 4.8 Data valid hold times before driving IORDY tZFS 0 0 0 0 0 35 Time from data output released- Figure 6-8 Initiating .... to-driving until the first transition of critical timing tACK 20 20 20 20 20 20 Setup and hold time at sender tFS 230 200 170 130 120 90 First strobe tUI 0 0 0 0 0 0 Unlimited interlock tAZ 10 10 10 10 10 10 Maximum time allowed for output drivers to -driving until the...
Specifications
Page 92
... 0(ns) Mode 1(ns) Mode 2(ns) Mode3(ns) MIN MAX MIN MAX MIN MAX MIN MAX 112 73 54 39 230 153 115 86 15 10 7 7 5 5 5 5 70 48 31 20 6.2 6.2 6.2 6.2 14.7 9.7 6.8 6.8 4.8 4.8 4.8 4.8 72.9 50.9 33.9 22.6 9.0 9.0 9.0 9.0 Mode4(ns) MIN MAX 25 57 5 5 6.7 6.2 4.8 4.8 9.5 9.0 Mode5(ns) MIN MAX 16.8 38 4 4.6 4.8 4.8 2.3 2.8 6.0 6.0 Description Cycle time allowing for asymmetry...
... 0(ns) Mode 1(ns) Mode 2(ns) Mode3(ns) MIN MAX MIN MAX MIN MAX MIN MAX 112 73 54 39 230 153 115 86 15 10 7 7 5 5 5 5 70 48 31 20 6.2 6.2 6.2 6.2 14.7 9.7 6.8 6.8 4.8 4.8 4.8 4.8 72.9 50.9 33.9 22.6 9.0 9.0 9.0 9.0 Mode4(ns) MIN MAX 25 57 5 5 6.7 6.2 4.8 4.8 9.5 9.0 Mode5(ns) MIN MAX 16.8 38 4 4.6 4.8 4.8 2.3 2.8 6.0 6.0 Description Cycle time allowing for asymmetry...
Specifications
Page 94
... 0 75 Limited interlock time tMLI 20 20 20 20 20 20 Interlock time with minimum tAZ 10 10 10 10 10 10 Maximum time allowed for output drivers to negation of DMARQ or assertion of STOP K6602637 Rev.3 02.27.01 - 94 - Note: The definitions for output drivers turning on tIORDYZ 20 20 20 20 20 20 Maximum time before releasing IORDY tACK 20 20 20 20 20 20 Setup and hold times before...
... 0 75 Limited interlock time tMLI 20 20 20 20 20 20 Interlock time with minimum tAZ 10 10 10 10 10 10 Maximum time allowed for output drivers to negation of DMARQ or assertion of STOP K6602637 Rev.3 02.27.01 - 94 - Note: The definitions for output drivers turning on tIORDYZ 20 20 20 20 20 20 Maximum time before releasing IORDY tACK 20 20 20 20 20 20 Setup and hold times before...
Specifications
Page 95
... word valid hold time at sender tLI 0 150 0 150 0 150 0 100 0 100 0 75 Limited interlock time tMLI 20 20 20 20 20 20 Interlock time with minimum tAZ 10 10 10 10 10 10 Maximum time allowed for output drivers to release tZAH 20 20 20 20 20 20 Minimum delay time for the STOP, HDMARDY and DSTROBE signal lines are no longer in effect after DMARQ and...
... word valid hold time at sender tLI 0 150 0 150 0 150 0 100 0 100 0 75 Limited interlock time tMLI 20 20 20 20 20 20 Interlock time with minimum tAZ 10 10 10 10 10 10 Maximum time allowed for output drivers to release tZAH 20 20 20 20 20 20 Minimum delay time for the STOP, HDMARDY and DSTROBE signal lines are no longer in effect after DMARQ and...
Specifications
Page 96
...0 150 0 150 0 0 0 20 70 20 70 20 70 0 0 0 tACK 20 20 20 tDZFS 70 48 31 Mode3(ns) MIN MAX 20 6.2 0 100 0 20 55 0 20 20 Mode4(ns) MIN MAX 6.7 6.2 0 100 0 20 55 0 20 6.7 Mode5(ns) Description MIN MAX ...4.8 Data valid setup time at sender 4.8 Data valid hold time at sender 0 75 Limited interlock time 0 Unlimited interlock 20 50 Envelope time 0 Minimum time before driving IORDY 20...
...0 150 0 150 0 0 0 20 70 20 70 20 70 0 0 0 tACK 20 20 20 tDZFS 70 48 31 Mode3(ns) MIN MAX 20 6.2 0 100 0 20 55 0 20 20 Mode4(ns) MIN MAX 6.7 6.2 0 100 0 20 55 0 20 6.7 Mode5(ns) Description MIN MAX ...4.8 Data valid setup time at sender 4.8 Data valid hold time at sender 0 75 Limited interlock time 0 Unlimited interlock 20 50 Envelope time 0 Minimum time before driving IORDY 20...
Specifications
Page 97
... clock variation t2CYC 230 153 115 86 57 38 Two cycle time allowing for clock variation tDS 15 10 7 7 5 4 Data setup time at recipient tDH 5 5 5 5 5 4.6 Data hold time at recipient tDVS 70 48 31 20 6.7 4.8 Data valid setup time at sender tDVH 6.2 6.2 6.2 6.2 6.2 4.8 Data valid hold time at the device until some time...
... clock variation t2CYC 230 153 115 86 57 38 Two cycle time allowing for clock variation tDS 15 10 7 7 5 4 Data setup time at recipient tDH 5 5 5 5 5 4.6 Data hold time at recipient tDVS 70 48 31 20 6.7 4.8 Data valid setup time at sender tDVH 6.2 6.2 6.2 6.2 6.2 4.8 Data valid hold time at the device until some time...