Specifications
Page 23
... • Monitors the actuator position and determines the target track for a seek operation. • Controls the voice coil motor driver to align the actuator in a desired position. • Constantly monitors error conditions of the servo and takes corresponding action if an...moves the head to allow vertical or horizontal mounting without adjustment. Deskstar T7K250 Hard Disk Drive Specification 9 The actuator is a swing-arm assembly driven by a microprocessor, several logic modules, digital/analog modules, and various drivers and receivers. Dynamic braking is used to quickly stop the ...
... • Monitors the actuator position and determines the target track for a seek operation. • Controls the voice coil motor driver to align the actuator in a desired position. • Constantly monitors error conditions of the servo and takes corresponding action if an...moves the head to allow vertical or horizontal mounting without adjustment. Deskstar T7K250 Hard Disk Drive Specification 9 The actuator is a swing-arm assembly driven by a microprocessor, several logic modules, digital/analog modules, and various drivers and receivers. Dynamic braking is used to quickly stop the ...
Specifications
Page 41
... assert DASP-. shall be asserted by an Open-Drain driver and internally pulled up to 450 ms for device 1 to indicate that it completes diagnostics and clear the device 1 Status register to post status. during reset initialization, device 0 shall post its drive diagnostics. Deskstar T7K250 Hard Disk Drive Specification 27 Device 0 shall allow up to 5 volts...
... assert DASP-. shall be asserted by an Open-Drain driver and internally pulled up to 450 ms for device 1 to indicate that it completes diagnostics and clear the device 1 Status register to post status. during reset initialization, device 0 shall post its drive diagnostics. Deskstar T7K250 Hard Disk Drive Specification 27 Device 0 shall allow up to 5 volts...
Specifications
Page 43
...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 Signal S4 Gnd 2nd mate S5 B- Plug Connector pin definition S1 GND 2nd mate S2 A+ Differential signal A from Phy S6 B+ ...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 Tx+/- It is controlled by firmware. P12 Gnd 1st mate P13 V12 12V power,pre-chage,2nd mate P14 V12 12V power P15 V12...
...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 Signal S4 Gnd 2nd mate S5 B- Plug Connector pin definition S1 GND 2nd mate S2 A+ Differential signal A from Phy S6 B+ ...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 Tx+/- It is controlled by firmware. P12 Gnd 1st mate P13 V12 12V power,pre-chage,2nd mate P14 V12 12V power P15 V12...
Specifications
Page 49
... timings The Ultra DMA timings meet Mode 0, 1, 2, and 4 of critical timing MODE 1 MIN MAX 0 - 20 - 20 70 0 - 0 200 73 - 154 - - 10 0- 10 - 5- 48 - Deskstar T7K250 Hard Disk Drive Specification 35 MODE 4 MIN MAX 0 - 20 - 20 55 0 - 0 120 25 - 57 - - 10 0- 5- 5- 6.7 - tFS First DSTROBE time 0 230 tCYC Cycle time 112 - MODE 3 MIN ...55 0 - 0 130 39 - 86 - - 10 0- 7- 5- 20 - tDS Data setup time at host 5- tAZ Maximum time allowed for DMACK- 20 - tACK Setup time for output drivers to release - 10 tZAD Drivers to -driving until the 70 -
... timings The Ultra DMA timings meet Mode 0, 1, 2, and 4 of critical timing MODE 1 MIN MAX 0 - 20 - 20 70 0 - 0 200 73 - 154 - - 10 0- 10 - 5- 48 - Deskstar T7K250 Hard Disk Drive Specification 35 MODE 4 MIN MAX 0 - 20 - 20 55 0 - 0 120 25 - 57 - - 10 0- 5- 5- 6.7 - tFS First DSTROBE time 0 230 tCYC Cycle time 112 - MODE 3 MIN ...55 0 - 0 130 39 - 86 - - 10 0- 7- 5- 20 - tDS Data setup time at host 5- tAZ Maximum time allowed for DMACK- 20 - tACK Setup time for output drivers to release - 10 tZAD Drivers to -driving until the 70 -
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 ...- 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 ...- 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
...United Nations Environment Program Montreal Protocol, and as this product. 7.9.3 Flammability The printed circuit boards used to the Protocol Hitachi Global Storage Technologies requires the following: • that no manufacturing processes for parts or assemblies include printed circuit boards... the shipment of the product 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 and C-UL recognition mark or the CSA monogram for CSA certification appears...
...United Nations Environment Program Montreal Protocol, and as this product. 7.9.3 Flammability The printed circuit boards used to the Protocol Hitachi Global Storage Technologies requires the following: • that no manufacturing processes for parts or assemblies include printed circuit boards... the shipment of the product 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 and C-UL recognition mark or the CSA monogram for CSA certification appears...
Specifications
Page 107
... to 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 follows: i. Preparation of drives by the system manufacturer Special utility software is 12,692,735 (C1ACFFh) regardless of the current setting... area and to contain critical system data such as BIOS code within the protected area. iii. Deskstar T7K250 Hard Disk Drive Specification 93 Shipping of drives from the drive manufacturer When the drive is as if it . ii. 10.9 Host Protected Area Feature Host Protected Area Feature provides ...
... to 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 follows: i. Preparation of drives by the system manufacturer Special utility software is 12,692,735 (C1ACFFh) regardless of the current setting... area and to contain critical system data such as BIOS code within the protected area. iii. Deskstar T7K250 Hard Disk Drive Specification 93 Shipping of drives from the drive manufacturer When the drive is as if it . ii. 10.9 Host Protected Area Feature Host Protected Area Feature provides ...