Datasheet Details
- Part number
- INS8257
- Manufacturer
- National Semiconductor
- File Size
- 943.71 KB
- Datasheet
- INS8257-NationalSemiconductor.pdf
- Description
- Programmable DMA Controller
INS8257 Description
~National ~ Semiconductor Preliminary JULY 1978.-Z ~ INS8257 Programmable DMA Controller "tJ c8 General .
;;
The INS8257 is a Direct Memory Access (DMA) con.
troller contained in a standard 40.
pin dual.
in.
line
The channel control registe.
INS8257 Features
* Four
* Channel DMA Controller
* Priority DMA Request Logic
. . -a. g::. :s. CD
registers (one pair per channel). A status register is also Included, which provides terminal count status
* Channel Inhibit Logic
for each channel. The status register also contains a
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