2.7.2Conducted noise

Input noise ripple is measured at the host system power supply across an equivalent 15-ohm resistive load on the +3.3 volt line.

Using 3.3-volt power, the drive is expected to operate with a maximum of 70 mV peak-to-peak square-wave injected noise at up to 20 MHz.

Note. Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write current.

2.7.3Voltage tolerance Voltage tolerance (including noise):

3.3V ± 5%

2.7.4Power-management modes

The drive provides programmable power management to provide greater energy efficiency. The drive features the following power-management modes:

Table 3:

Power-management modes

 

 

 

 

 

 

 

Power modes

Heads

 

Spindle

Buffer

 

 

 

 

 

Active (read/write/seek)

Tracking

 

Rotating

Enabled

 

 

 

 

 

Idle, performance

Tracking

 

Rotating

Enabled

 

 

 

 

 

Idle, low power

Parked

 

Rotating

Disabled

 

 

 

 

 

Standby/Sleep

Parked

 

Stopped

Disabled

 

 

 

 

 

 

•Active mode

The drive is in Active mode during the read/write and seek operations.

•Performance idle mode

The drive enters this mode once the read/write/seek activity is completed. The buffer remains enabled, and the drive accepts all commands and returns to Active mode any time disc access is necessary.

•Low power idle mode

Drive enters Low Power Idle mode from Performance Idle mode when the Advanced Power Management Level is set between 80h and FDh, and the Idle timer reaches 2 seconds (default setting). Disc is spinning and heads are parked and drive accepts all commands and returns to Active mode any time disc access is necessary.

•Standby/Sleep mode

The drive enters Standby mode when the host sends a Standby Immediate command. When the Advanced Power Management Level is set lower than 80h (default setting), the drive enters the Standby state after 2 seconds of interface inactivity. If the host has set the standby timer, the drive may also enter the Standby mode after the expiry of the standby timer. The standby timer can be set using the Standby or Idle command. In Standby mode, the drive buffer is disabled, the heads are parked and the spindle is at rest. The drive accepts all commands and returns to Active mode any time disc access is necessary.

8

Lyrion Series IDE Product Manual, Rev. F

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Seagate ST730212DE-30GB manual Conducted noise, Voltage tolerance Voltage tolerance including noise, Power-management modes
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ST740211DE-40GB, ST760211DE-60GB, ST730212DE-30GB specifications

Seagate, a renowned name in the storage solutions industry, has made significant contributions with its range of hard disk drives (HDDs) designed for various applications. Among these are the Seagate ST730212DE-30GB, ST760211DE-60GB, and ST740211DE-40GB models. Each of these drives brings unique features and technologies tailored to meet the demands of users seeking reliable data storage.

Starting with the Seagate ST730212DE-30GB, this drive offers a compact storage solution with a capacity of 30GB, making it suitable for handheld devices or applications where space is a premium. The ST730212DE utilizes a 2.5-inch form factor, which allows for easy integration into various devices while ensuring portability. This HDD is built with an average latency of 12 ms and a spindle speed of 4,200 RPM, which provides a decent performance for applications that require quick access to stored data. Its ATA interface ensures compatibility with a wide range of systems, providing flexibility for users.

Next in line is the Seagate ST760211DE-60GB, which doubles the storage capacity of the previous model to 60GB. The ST760211DE is designed for slightly more demanding applications, making it ideal for users who require additional storage without compromising on size. Similar to the ST730212DE, this drive features a 2.5-inch form factor and operates at a spindle speed of 4,200 RPM. Its enhanced capacity allows for more extensive media libraries, applications, and files, while the ATA interface maintains broad compatibility.

Finally, the Seagate ST740211DE-40GB strikes a balance between the two preceding models, offering 40GB of storage. This drive caters to those who need more than what the ST730212DE offers but do not require the full 60GB of the ST760211DE. With the same dimensions and spindle speed, the ST740211DE is versatile and can fit various applications, from laptops to gaming consoles, all while ensuring optimal performance.

All three models embody Seagate's commitment to reliability and performance. They incorporate advanced technologies for data integrity and longevity, along with robust error correction features that minimize the risk of data loss. With their varying capacities and consistent form factors, users can choose the drive that best suits their needs, making these models a great choice for both casual and professional use. Overall, the Seagate ST730212DE-30GB, ST760211DE-60GB, and ST740211DE-40GB represent excellent options for those seeking dependable storage solutions.
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