網頁

2020年5月9日 星期六

Seagate(希捷)ST-225 硬碟機(Hard Disk Drive)控制板 - 拆解(一)

Seagate(希捷)ST-225 硬碟機(Hard Disk Drive)控制板 - 拆解(一):

Seagate(希捷)ST-225 硬碟(HDD / Hard Disk Drive)控制板(Control Board)尺寸為 140 / 200mm × 83 / 138mm ×1.5mm,重量有 151g,雙面 AV-0板(Double Side PCB),PCB編號是 20302-001 REV P1380 CONTROL S-225 ASSY 20301 REV 014,生產時間 E88 14(估計在 1988年 第14周),生產廠商是 Seagate TECHNOLOGY,新加坡組裝(Assembled in Singapore)。

Seagate(希捷)ST-225 硬碟(HDD / Hard Disk Drive)
Seagate(希捷)ST-225 硬碟(HDD / Hard Disk Drive)控制板(Control Board)的正面
Seagate(希捷)ST-225 硬碟(HDD / Hard Disk Drive)控制板(Control Board)的背面
Seagate(希捷)ST-225 HardDisk 控制板(Control Board)共有 17枚 IC(集成電路),ST(意法半導體)11642-001 DIP-20 封裝的 IC,Motorola(摩托羅拉)11665-001 DIP-16 封裝的 IC,SSI 280P S8814 DIP-28 封裝的 IC,Fairchild(仙童)MPQ2907 DIP-14 封裝的 PNP Silicon Quad Transistor,Rockwell(洛克威爾)80007-001 R10l7-11 DIP-40 封裝的 IC,編號 11695-002 DIP-8 封裝的 IC,TI(德州儀器)SN75453BP DIP-8 封裝的 Dual-Peripheral Drivers for High-Current High-Speed Switching,Fairchild(仙童)7409 DIP-14 封裝的 Quadruple 2-Input Positive-AND Gates With Open-Collector,編號 7445 DIP-16 封裝的 BCD-to-Decimal Decoders/Drivers,NS(美國國家半導體)DM74LS14N DIP-14 封裝的 Hex Inverter with Schmitt Trigger Inputs,Philips(飛利浦)74HC74 DIP-14 封裝的 Dual D Flip−Flop with Set and Reset,編號 7438N DIP-14 封裝的 Quadruple 2-Input Positive-NAND Buffers with Open-Collector Outputs,編號 DM7406N DIP-14 封裝的 Hex Inverter Buffers / Drivers with Hgh-Voltage Outputs,TI(德州儀器)SN74123N DIP-16 封裝的 Dual Retriggerable Monostable Multivibrators。

SSI 280P S8814 DIP-28 封裝的 IC
Rockwell(洛克威爾)80007-001 R10l7-11 DIP-40 封裝的 IC
ST(意法半導體) 2N6039 和 Philips(飛利浦)BD436 三極管
產品主控制板 PCB 板主要零件(BOM):
Type
Brand
P/N
Packaging
?
ST
11642-001
DIP-20
?
Motorola
11665-001
DIP-16
?
SSI
280P S8814
DIP-28
PNP Silicon Quad Transistor
Fairchild
MPQ2907
DIP-14
?
Rockwell
80007-001 R10l7-11
DIP-40
?
?
11695-002
DIP-8
Dual-Peripheral Drivers for High-Current High-Speed Switching
TI
SN75453BP
DIP-8
Quadruple 2-Input Positive-AND Gates With Open-Collector
Fairchild
7409
DIP-14
BCD-to-Decimal Decoders/Drivers
?
7445
DIP-16
Hex Inverter with Schmitt Trigger Inputs
NS
DM74LS14N
DIP-14
Dual D FlipFlop with Set and Reset
Philips
74HC74
DIP-14
Dual D FlipFlop with Set and Reset
NS
DM74LS74AN
DIP-14
Quadruple 2-Input Positive-NAND Buffers with Open-Collector Outputs
?
7438N
DIP-14
Hex Inverter Buffers / Drivers with Hgh-Voltage Outputs
?
DM7406N
DIP-14
Quadruple 2-Input Positive-NAND Buffers with Open-Collector Outputs
?
7438N
DIP-14
Hex Inverter Buffers / Drivers with Hgh-Voltage Outputs
NS
DM7406N
DIP-14
Dual Retriggerable Monostable Multivibrators
TI
SN74123N
DIP-16

品牌型號:Seagate(希捷)硬碟(HDD / Hard Disk Drive)
型號:ST-225
Form Factor:5.25" × 1/2H / HH (Half Height)
Unformatted Capacity (MB):25.6
Formatted Capacity (17
Sectors) (MB):21.4
Actuator Type:Stepper
Tracks:2,460
Cylinders:615
Heads:4
Discs:2
Media Type:Oxide
Recording Method:MFM
Transfer Rate (mbits/sec):5.0
Spindle Speed:3,600rpm
Average Latency :8.3ms
Interface:ST412
Sectors Per Drive:41,820
TPI (Tracks Per Inch):588TPI
BPI (Bits Per Inch):9,827BPT
Average Access(Rd/Wt):65ms
Single Track Seek(Rd/Wt):20ms
Max Full Seek(Rd/Wt):150ms
MTBF (power-on hours):100,000
Power Requirements:+12V Start Up (Amps):2.4,+12V Typical (Amps):0.9,+5V Typical (Amps):0.8,Typical (watts):14.8,Maximum (watts) :33
Buffered Step Pulse Rate (micro sec):5-200
Write Precomp (cyl):300
Reduced Write Current (cyl):N/A (616)
Landing Zone (cyl):670
IBM AT Drive Type:2

2020年 5月 9日 天氣報告
氣溫:27.4@ 20:10
相對濕度:百分之 91%
天氣:大致多雲

1 則留言:

  1. I am reverse-engineering a very similar model, and found your page/blogpost here, thank you for this! Are you trying to recover data from one of these drives? Or do you have another motivation for documenting the circuit board this way?

    回覆刪除