Specifications
Page 23
... and determines the target track for a seek operation. • Controls the voice coil motor driver to quickly stop the spindle. 3.3 Actuator The read/write heads are mounted in -hub, brushless, sensorless DC drive motor. Venting of the servo and takes corresponding action if an error occurs. • Monitors... of the actuator. An embedded servo pattern supplies feedback to the positioning servo to allow vertical or horizontal mounting without adjustment. Deskstar T7K250 Hard Disk Drive Specification 9 A closed loop control. 3.0 Fixed-disk subsystem description 3.1 Control electronics The...
... and determines the target track for a seek operation. • Controls the voice coil motor driver to quickly stop the spindle. 3.3 Actuator The read/write heads are mounted in -hub, brushless, sensorless DC drive motor. Venting of the servo and takes corresponding action if an error occurs. • Monitors... of the actuator. An embedded servo pattern supplies feedback to the positioning servo to allow vertical or horizontal mounting without adjustment. Deskstar T7K250 Hard Disk Drive Specification 9 A closed loop control. 3.0 Fixed-disk subsystem description 3.1 Control electronics The...
Specifications
Page 41
...or after RESET- within 1 ms to indicate to device 0 that it is needed to pull this line to post status. Deskstar T7K250 Hard Disk Drive Specification 27 Following a Power On Reset, software reset, or RESET-, drive 1 shall negate PDIAG- This signal is an open , the device address is 1 KEY Pin position 20 has no longer...an external resistor is busy and has not yet passed its own status immediately after negation of the first valid command by an Open-Drain driver and internally pulled up to accept commands until it is active. At anytime after it has completed the diagnostics.
...or after RESET- within 1 ms to indicate to device 0 that it is needed to pull this line to post status. Deskstar T7K250 Hard Disk Drive Specification 27 Following a Power On Reset, software reset, or RESET-, drive 1 shall negate PDIAG- This signal is an open , the device address is 1 KEY Pin position 20 has no longer...an external resistor is busy and has not yet passed its own status immediately after negation of the first valid command by an Open-Drain driver and internally pulled up to accept commands until it is active. At anytime after it has completed the diagnostics.
Specifications
Page 43
... Outputs: Input High Voltage Input Low Voltage Output High Voltage Output Low Voltage 2.0 V min -0.8 V max. 2.4 V min. 0.5 V max. 6.5 Signal definition (SATA model) SATA has receivers and drivers to be used for LED activity. and Rx+/-. Differential signal B from Phy S3 A- No. P12 Gnd 1st mate P13 V12 12V power,pre-chage,2nd... signal defines the signal names of I /O Input Input Output Output 3.3V 3.3V 3.3V Gnd Gnd Gnd 5V 5V 5V Gnd Reserve Gnd V12 V12 V12 Deskstar T7K250 Hard Disk Drive Specification 29
... Outputs: Input High Voltage Input Low Voltage Output High Voltage Output Low Voltage 2.0 V min -0.8 V max. 2.4 V min. 0.5 V max. 6.5 Signal definition (SATA model) SATA has receivers and drivers to be used for LED activity. and Rx+/-. Differential signal B from Phy S3 A- No. P12 Gnd 1st mate P13 V12 12V power,pre-chage,2nd... signal defines the signal names of I /O Input Input Output Output 3.3V 3.3V 3.3V Gnd Gnd Gnd 5V 5V 5V Gnd Reserve Gnd V12 V12 V12 Deskstar T7K250 Hard Disk Drive Specification 29
Specifications
Page 49
... at host 15 - MODE 2 MIN MAX 0 0 20 - 20 70 0 - 0 170 54 - 115 - - 10 0- 7- 5- 31 - Deskstar T7K250 Hard Disk Drive Specification 35 tDS Data setup time at host 5- 6.10 Ultra DMA timings The Ultra DMA timings meet Mode 0, 1, 2, and 4 of critical timing MODE 1...0 - MODE 4 MIN MAX 0 - 20 - 20 55 0 - 0 120 25 - 57 - - 10 0- 5- 5- 6.7 - tACK Setup time for output drivers to release - 10 tZAD Drivers to -driving until the 70 - tFS First DSTROBE time 0 230 tCYC Cycle time 112 - Time from data ouput tDZFS released-to assert 0- MODE 3 MIN MAX...
... at host 15 - MODE 2 MIN MAX 0 0 20 - 20 70 0 - 0 170 54 - 115 - - 10 0- 7- 5- 31 - Deskstar T7K250 Hard Disk Drive Specification 35 tDS Data setup time at host 5- 6.10 Ultra DMA timings The Ultra DMA timings meet Mode 0, 1, 2, and 4 of critical timing MODE 1...0 - MODE 4 MIN MAX 0 - 20 - 20 55 0 - 0 120 25 - 57 - - 10 0- 5- 5- 6.7 - tACK Setup time for output drivers to release - 10 tZAD Drivers to -driving until the 70 - tFS First DSTROBE time 0 230 tCYC Cycle time 112 - Time from data ouput tDZFS released-to assert 0- MODE 3 MIN MAX...
Specifications
Page 51
to final DSTROBE time Ready to pause time Limited interlock time Maximum time allowed for output drivers to release Minimum delay time required for output Interlock time with minimum CRC word setup time at device CRC word hold time at device Hold...- 20 - 20 - 20 - 20 - 20 - 20 - 20 - 20 - 20 - 20 - 15 - 10 - 7 - 7 - 5 - 5 - 5-5-5-5-5-5- 20 - 20 - 20 - 20 - 20 - 20 - - 20 - 20 - 20 - 20 - 20 - 20 Deskstar T7K250 Hard Disk Drive Specification 37 6.10.3 Host Terminating Read DMA Table 22: Ultra DMA cycle timing chart (Host terminating Read) DMARQ DMACKSTOP tLI tRP tMLI tACK tACK HDMARDYDSTROBE...
to final DSTROBE time Ready to pause time Limited interlock time Maximum time allowed for output drivers to release Minimum delay time required for output Interlock time with minimum CRC word setup time at device CRC word hold time at device Hold...- 20 - 20 - 20 - 20 - 20 - 20 - 20 - 20 - 20 - 20 - 15 - 10 - 7 - 7 - 5 - 5 - 5-5-5-5-5-5- 20 - 20 - 20 - 20 - 20 - 20 - - 20 - 20 - 20 - 20 - 20 - 20 Deskstar T7K250 Hard Disk Drive Specification 37 6.10.3 Host Terminating Read DMA Table 22: Ultra DMA cycle timing chart (Host terminating Read) DMARQ DMACKSTOP tLI tRP tMLI tACK tACK HDMARDYDSTROBE...
Specifications
Page 52
... DD(15:0) tLI tIORDYZ tAZ xxxxxx tZAH tCH tCS xxxxxxxxxxxxxxxxxx CRC xxxxxxxxxx Device drives DD Host drives DD Table 25: Ultra DMA cycle timings (Device Terminating Read) tSS tLI ...tAZ tZAH tMLI tCS tCH tACK tIORDYZ PARAMETER DESCRIPTION (all values in ns) Time from DSTROBE edge to negation of DMARQ Limited interlock time Maximum time allowed for output drivers... 15 - 10 - 7 - 7 - 5 - 5 - 5-5-5-5-5-5- 20 - 20 - 20 - 20 - 20 - 20 - - 20 - 20 - 20 - 20 - 20 - 20 Deskstar T7K250 Hard Disk Drive Specification 38
... DD(15:0) tLI tIORDYZ tAZ xxxxxx tZAH tCH tCS xxxxxxxxxxxxxxxxxx CRC xxxxxxxxxx Device drives DD Host drives DD Table 25: Ultra DMA cycle timings (Device Terminating Read) tSS tLI ...tAZ tZAH tMLI tCS tCH tACK tIORDYZ PARAMETER DESCRIPTION (all values in ns) Time from DSTROBE edge to negation of DMARQ Limited interlock time Maximum time allowed for output drivers... 15 - 10 - 7 - 7 - 5 - 5 - 5-5-5-5-5-5- 20 - 20 - 20 - 20 - 20 - 20 - - 20 - 20 - 20 - 20 - 20 - 20 Deskstar T7K250 Hard Disk Drive Specification 38
Specifications
Page 80
... No.950-M95 Third Edition, for use controlled CFC materials. 7.9.6 Secondary circuit protection Spindle/VCM driver module includes 12 V over current protection circuit Deskstar T7K250 Hard Disk Drive Specification 66 The UL Recognition or the CSA certification is also controlled. The UL and C-UL ...recognition mark or the CSA monogram for CSA certification appears on the drive. 7.9.2 German safety mark All models are used to the Protocol Hitachi ...
... No.950-M95 Third Edition, for use controlled CFC materials. 7.9.6 Secondary circuit protection Spindle/VCM driver module includes 12 V over current protection circuit Deskstar T7K250 Hard Disk Drive Specification 66 The UL Recognition or the CSA certification is also controlled. The UL and C-UL ...recognition mark or the CSA monogram for CSA certification appears on the drive. 7.9.2 German safety mark All models are used to the Protocol Hitachi ...
Specifications
Page 107
...store the data in the same manner as a 6.2 GB device, any BIOS, device driver, or application software will access the drive as BIOS or system management information. Shipping of drives from the manufacturer, the device has been tested to 12,692,735 (C1ACFFh) via ...(BB85FFh) with nonvolatile option. iii. The sequence is used to C1ACFFh 1. ii. Write information data such as follows: i. Deskstar T7K250 Hard Disk Drive Specification 93 The following example uses hypothetical values. Change maximum LBA using Set Max ADDRESS command to get the real device maximum LBA...
...store the data in the same manner as a 6.2 GB device, any BIOS, device driver, or application software will access the drive as BIOS or system management information. Shipping of drives from the manufacturer, the device has been tested to 12,692,735 (C1ACFFh) via ...(BB85FFh) with nonvolatile option. iii. The sequence is used to C1ACFFh 1. ii. Write information data such as follows: i. Deskstar T7K250 Hard Disk Drive Specification 93 The following example uses hypothetical values. Change maximum LBA using Set Max ADDRESS command to get the real device maximum LBA...