CP82C37A-5 Intersil, CP82C37A-5 Datasheet - Page 13

• Manufacturer Part Number: CP82C37A-5
• Manufacturer: Intersil

Specifications of CP82C37A-5

• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Lead Free Status / RoHS Status: Not Compliant

received, addresses and control signals are generated by
the DMA controller to accomplish the DMA transfers. Data is
transferred directly from the I/O device to memory (or vice
versa) with IOR and MEMW (or MEMR and IOW) being
NOTE: The address lines need pull-up resistors.
82C84A
82C85
CLK
OR
13
MEMR
MEMW
IOR
IOW
HLDA
HLDA
HRQ
M/IO
RD
WR
MEMCS
MEMW
80C88
MEMR
MN/MX
ALE
AD0
AD7
AX
FIGURE 6. APPLICATION FOR DMA SYSTEM
V
CC
MEMORY
82C82
STB
MEMCS
47kΩ
OE
V
82C37A
CC
DECODER
DATA BUS
ADDRESS BUS
active. Note that data is not read into or driven out of the
DMA controller in I/O-to-memory or memory-to-I/O data
transfers.
DATA BUS
ADDRESS BUS
82C82
STB
OE
CLK
CS
ADSTB
AEN
A0-7
DB0-7
82C37A
DEVICE
I/O
DREQ0
MEMW
MEMR
DACK
DREQ
HLDA
HRQ
EOP
IOW
IOR
CS
V
CC
IOR
IOW
March 20, 2006
FN2967.2