FD235HFA529 Specifications

 

The following table provides a description of the hardware specifications for the 3.5" 1.44MB floppy disk drive model FD235HFA529.

 

Model Name:

FD235HFA529

Status:

Discontinued

Front Bezel:

Black

Eject Button:

Black

LED Indicator:

Green

Interface

Connector:

34-pin connector right-angled header connector

Operation Mode

Write / Read:

2MB mode

1MB mode

Disk Used

(90mm / 3.5"):

High density (2HD)

Normal density (2DD)

Data Transfer

Rate:

500KBps

250KBps

Unformatted Data

Capacity:

2MB

1MB

Rotational Speed:

300rpm

Track Density:

5.3 track/mm (135tpi)

Track to Track Time:

3ms

Required Power:

+5V single (4.5V ~ 5.5V)

Signal Output Driver:

CMOS, 3-state

Input signal Pull-up:

1K Ohm ±30% unremovable

Customer Selectable

Strap:

14 selections (DC0 ~ 3, RY34, DC34, DC2, H02, HI2, HA, REN, ACD, IR, FG)

Function Setting at Delivery:

view jumper configuration (factory default)

Strap Setting:

  1. DS1: Drive Select 1 on pin 12

  2. DC34: Disk Change on pin 34

  3. HA: Automatic Density Setting for 2DD (1MB) disk or 2HD (2MB) disk    

  4. REN: Auto-recalibration at  Power-On  

  5. FG: Frame is electrically shorted to DC 0V
     

Other Interface Settings:

  1. Pin2: Open

  2. Pin4: Open

 

Other Function Settings:   

  1. LED Turn-on Condition: DRIVE SELECT

  2. Motor Rotating Condition: MOTOR ON

  3. Ready and seek-complete gate  (full-mask) for INDEX and READ DATA output pulses

  4. Auto-chucking at disk installation

Dimensions:

101.6 W X 25.4 H X 145 D mm excluding front bezel

Weight:

345g

Mounting:

Vertical/horizontal with spindle motor down

MTBF:

30,000 POH

Safety Standards:

UL, CSA, TUV