BC847B/215
Nexperia USA Inc.
The Nexperia USA Inc. BC847B/215 is a bipolar transistor. It is RoHS3 Compliant and has an MSL Level 1 rating.
| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
10 pcs
|
10 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| SVHC Present |
The UM8272A is an 8-Bit ISA Floppy Disk Controller manufactured by UMC, designed for compatibility with IBM PC, XT, AT, and similar systems. This controller card features an integrated BIOS with a copyright string indicating 'HDFC card Ver 1.01 (c) HSIN-LIN COMPUTER CO. LTD., MAR-04-1986'.
With a length of 130 mm including the edge connector, it is suitable for compact systems like the IBM Portable 5155. The controller utilizes three jumpers for configuration and supports 360KB 5.25", 1.2MB 5.25", and 720KB 3.5" diskettes, allowing booting from these media. The BIOS maps itself into the memory range CA000 - CBFFF but does not display on-screen messages during initialization.
While the card is functional for common floppy disk types, it does not support 1.44MB 3.5" diskettes. Documentation for the specific jumper functions is scarce, making configuration potentially challenging for advanced setups. This controller is a valuable component for retrocomputing enthusiasts looking to expand or maintain vintage systems.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.32 | $1.32 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The UM8272A controller supports 360KB 5.25", 1.2MB 5.25", and 720KB 3.5" diskettes.
The BIOS copyright string is 'HDFC card Ver 1.01 (c) HSIN-LIN COMPUTER CO. LTD., MAR-04-1986'.
The UM8272A features an 8-Bit ISA bus interface.
The card length, including the edge connector, is 130 mm.
The BIOS maps itself into the memory range CA000 - CBFFF.
No, the UM8272A cannot address 1.44 MB 3-1/2" diskettes.