S T 3 6 5 5 A M E D A L I S T SEAGATE NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 3.5"/SLIMLINE Cylinders | 1024| | Capacity form/unform 528/ MB Heads 5| 16| | Seek time / track 12.0/ 3.5 ms Sector/track | 63| | Controller IDE / ATA2 FAST/ENHA Precompensation Cache/Buffer 256 KB SEGMENTED Landing Zone Data transfer rate 3.000 MB/S int Bytes/Sector 512 11.100 MB/S ext Recording method RLL 1/7 operating | non-operating -------------+-------------- Supply voltage 5/12 V Temperature *C 5 55 | -40 70 Power: sleep W Humidity % 8 80 | 5 95 standby 0.9 W Altitude km -0.305 3.048| -0.305 12.192 idle 3.2 W Shock g 2 | 75 seek 5.6 W Rotation RPM 4500 read/write 5.4 W Acoustic dBA 36 spin-up 7.0 W ECC Bit MTBF h 250000 Warranty Month 24 Lift/Lock/Park YES Certificates CSA,FCC,IEC950,UL1950,UL47... ********************************************************************** L A Y O U T ********************************************************************** SEAGATE ST3390A/3655A PRODUCT MANUAL 36212-001, REV. A +---------------------------------------------------------++-1 J5 | |+-+ | |XX J7 | |xx | |XX | |XX | |XX | |XX | |XX | |XX J1 | |XX I/O | |XX |+-+J8 |XX ||x| |1X ||x| | ||x| +--+J6 |XX Power |+-1 +--+ |XX J3 +---------------------------------------------------------+ 1 ********************************************************************** J U M P E R S ********************************************************************** SEAGATE ST3390A/3655A PRODUCT MANUAL 36212-001, REV. A Jumper setting ============== J5 Master/Slave and Slave Present Jumper Block ------------------------------------------------ +3--1+ One Drive Only +3--1+ Drive is +3--1+ Drive is |o o| (Default) |o X| is Slave |X o| Master with |o o| |o X| |X o| Slave Present +4--2+ +4--2+ +4--2+ If only one drive is installed, do not install any jumpers on the master/slave and slave present jumper block. If there are two drives installed on the bus, one must be configured as a master and the other as a slave. No more than two drives can be connected on the AT bus. To configure the drive with a slave present, install a jumper on pins 3 and 4 only of the master/slave and slave present jumper block. If both the master and the slave are ST3390A or ST3655A drives, you do not need to install a jumper on pins 3 and 4. This is because the master can detect the presence of the slave using the DASP- signal. If the drives in your application do not implement the DASP- signal, install the jumper on the master drive only. To configure the drive as a slave, install a jumper on pins 1 and 2 only of the master/slave and slave present jumper block. J8 Options Jumper Block ------------------------- 13 11 9 7 5 3 1 ---+---------------------+---Circuit-board | o o o o o o | | o o o o o o o | +---------------------+ 14 12 10 8 6 4 2 Pin Function ------------------------------------- 3 Removed for Key 8 Spindle clock to I/O pin 28 9 Clock Ground 10 External Spindle Clock Sync. 13 Remote LED- 14 Remote LED+ Note: All other pins are RESERVED! Do NOT use them. Spindle synchronization ----------------------- The spindle clock signal (SPSYNC-) synchronizes the rotation of up to 12 drives in a system. When two or more drives are connected to the host, the drives automatically configure themselves in either of two ways: - The spindle synchronization clock signal is generated by the host. The drives configure themselves as slaves and synchronize their spindles according to the host signal. - The spindle synchronization clock signal is generated by one of the drives. The master configures itself as the originator of the SPSYNC- signal; the other drives become slaves, or receivers of the SPSYNC- signal. The slave receives the signal to synchronize its spindle with the host or master and synchronizes its index with the SPSYNC- signal. Synchronization is achieved, and is indicated by the drive setting the DRDY bit in the Status register. (If a drive that was already synchronized loses synchronization, but continues to function, it does not clear DRDY.) There are three ways to enable spindle synchronization: - Enable pin 28 (SPSYNC-) of the AT interface connector by install- ing a jumper on pins 8 and 10 of the options jumper block (J8). - Connect a twisted pair to pins 9 and 10 of the options jumper block to transmit and receive SPSYNC-. Use one strand of the twisted pair to connect pin 9 of the options jumper block of each drive. Use the other strand to connect pin 10 of the options jumper block of each drive. The cable should not be longer than six feet (1.8 meters). The spindle clock uses a single-ended TTL, active low, 75 Hz signal with a clock period of 13.34 msec. 0.5% and a duty cycle of 0.5 sec minimum, 500 sec maximum. The spindle clock is leading edge to index leading edge 0 250 sec. +-------------------+ |J8+-10+ Drive | +--+-9++------------+ || +--------------------+ || |J8+10-+ Drive | || +--++9-+-------------+ || |+-------------------+| +---------------------+ J8 Remote LED connection ------------------------ If you want to add a remote LED, attach a two-pin, 0.1-inch connector to Pins 13 and 14 of the options jumper block. J3 DC Power and Pin Connector Assignment ----------------------------------------- --+------------+-- | 1 2 3 4 | +-+--+--+--+-+ | | | +----- + 5 VDC | | +-------- + 5 Volts Return | +----------- +12 Volts Return +-------------- +12 VDC J7 Mini Power Connector ------------------------ --+-------+-- | o o o | +-+-+-+-+ | | +---- + 5 VDC | +------ +12 VDC +-------- +GND J6 Factory Test --------------- J6 for factory test! The pins on this jumper block are used for testing during the manu- facturing process; they are not for field use. CAUTION When installing jumpers on the options jumper block, be carefuk to install jumpers on the correct pins. If you install jumpers on the wrong pins, you could damage the drive. ********************************************************************** I N S T A L L ********************************************************************** SEAGATE ST3390A/3655A PRODUCT MANUAL 36212-001, REV. A Drive Orientation ================= You can mount the drive in any orientation. Follow the guidelines below appropriate to the set of mounting holes you select to use: either bottom mounting holes or side mounting holes. Regardless of which set of holes you use, use only three mounting screws. NOTE For optimum performance, format the drive in the same orientation as you mount it in the host system. Bottom mounting holes --------------------- Use 6-32 UNS screws in three of the four available bottom mounting holes. Do not insert the bottom mounting screws more than 0.20 inches (6 turns) into the drive frame. If you use a screw that is too long, you could damage the drive. Side mounting holes ------------------- Use three 6-32 UNS screws in three of the six available side mounting holes according to the following guidelines: - Do not use all three mounting holes on the same side of the drive. - Use one or both of the following: the side mounting hole near the power connector or the side mounting hole (on the other side of the drive) near the I/O connector. - Use at least one, but no more than two, of the other four side mounting holes. CAUTION Do not insert side mounting screws more than 0.13 inches (4 turns) into the drive frame. If you use a screw that is too long, you cold damage the drive. I/O cable and connector ----------------------- The I/O connector is a 40-pin connector. The even pins are next to the edge of the printed circuit board; the odd pins are away from the printed circuit board. Pin 1 is near the 4-pin power connector. There is no pin 20 because that location is used as a key. The corre- sponding pin hole on the cable connector should be plugged to prevent the connector from being installed upside down. The I/O cable cannot be any longer than 18 inches (0.46 meters). The table below lists recommended parts for the mating connector. You can use equivalent parts. Part Description 3M part number Connector 40-pin 3M-3417-7000 Connector 40-pin 3M-3448-2040 Flat cable AWG28 (stranded) 3M-3365-40 AT interface ------------ These drives are compatible with the requirements of the IBM AT bus. The AT interface consists of single-ended, TTL-compatible receivers and drivers communinating through a 40-conductor flat-ribbon, non- shielded cable with a maximum length of 18 inches (0.45 meters) using an asynchronous interface protocol. The drivers can sink up to 24 mA and drive a load uo to 300 pF. Jumpers ------- The drive can be daisy-chained with a second drive if the second drive meets the same interface specifications. In this configuration, one drive is designated as the master and the other as the slave. Jumper sizes ------------ The drive uses 0.1-inch configuration jumpers. Using connectors and jumpers other than those specifically made for 0.1-inch applications damages the connectors and jumpers. Use Seagate part number 10562-001, or an equivalent. Power connector --------------- The drive has two power connectors: a standard 4-pin power connector and 3-pin mini power connector. You can connect the 3-pin power connector to a Molex mating connector. The part number for the Molex housing is 39-01-0033 and the part number for the Molex contact is 30-00-0023. Multisegment read look-ahead buffer ----------------------------------- The drive uses the read look-ahead buffer to improve performance by eliminating access times under certain conditions. The read look- ahead buufer contains four 64K-segments of RAM (one for writing and three for reading) for a total capacity of 256 Kbytes. The read segments are used to store the next logical sectors after the previously read sector into a buffer before those sectors are actually requested by the host. The read look-ahead buffer stores data from the start of a read until the buffer segment is full, or until another command is received from the host. The write segment is used for write immediate and write merging. Auto-park --------- Upon power-down, the read/write heads automatically move to the shipping zone. The heads park inside the maximum data cylinder. When power is applied, the heads recalibrate to track 0. CAUTION Do not move the drive until the motor has come to a complete stop. Power management ---------------- The drive implements intelligent power managment by automatically changing power modes based on interface activity. Power management reduces the average power consumption considerably compared to a drive without this feature. Interface commands and interface-selectable parameters allow you to customize the power management configuration. Transitions between the Standby mode and the Idle mode (through the Spinup mode) are controlled by both the power management configuration and the inter- face demands. Transitions between the Idle mode, the Read/Write mode and the Seeking mode are controlled solely by interface requests (seeks, reads and writes). NOTE If you install the ST3390A or the ST3655A as a slave with a master drive that does not support power management (for example, a Seagate ST1239A drive), do not use power management commands on the ST3390A or the ST3655A. To enable power management, use the system setup utility. ********************************************************************** F E A T U R E S ********************************************************************** SEAGATE ST3390A/3655A PRODUCT MANUAL 36212-001, REV. A Low-level formatting ------------------- ST3390A and ST3655A family drives are low-level formatted at the factory to 512 bytes per sector. You cannot low level format them. Seek Time --------- +-------------------------------------------+ |Seagate ST3390A and ST3655A | +----------------------------------+--------+ |Track-to-Track msec. typ. | 3.5 | |Track-to-Track msec. max. | 4 | +----------------------------------+--------+ |Average msec. typ. | 12 | |Average msec. max. | 14 | +----------------------------------+--------+ |Full-stroke seek msec. typ. | 30 | |Full-stroke seek msec. max. | 32 | +----------------------------------+--------+ |Latency msec. avg. | 6.67 | +----------------------------------+--------+ Reliability ----------- Read error rates are measured with automatic retries and data correction with ECC enabled and all flaws re-allocated. MTBF is measured at nominal power at sea level and an ambient temperature of 40*C. Nonrecoverable read errors 1 per 10(13) bits transferred Seek errors 1 per 10(7) physical seeks MTBF 250,000 power on hours Service life 5 years