参数资料
型号: CS82C37A96
厂商: Intersil
文件页数: 13/24页
文件大小: 0K
描述: IC CMOS DMA CONTROLLER 44PLCC
标准包装: 500
应用: CMOS DMA 控制器
电源电压: 4.5 V ~ 5.5 V
电流 - 电源: 2mA
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 44-LCC(J 形引线)
供应商设备封装: 44-PLCC
包装: 带卷 (TR)
82C37A
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
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.
versa) with IOR and MEMW (or MEMR and IOW) being
V CC
MEMCS
HLDA
DECODER
IOR
IOW
82C84A
OR
82C85
CLK
HLDA
HRQ
M/ IO
AX
ALE
AD0
AD7
V CC
STB
OE
82C82
ADDRESS BUS
OE
STB
82C82
DATA BUS
82C37A
CLK EOP
CS HLDA
ADSTB
AEN
MEMR
MEMW
A0-7 HRQ
RD
DB0-7
DREQ0
WR
MEMR
MEMW
MN/ MX
80C88
V CC
47k Ω
ADDRESS BUS
DACK
CS
DREQ
MEMORY
IOR
IOW
MEMCS
MEMR
DATA BUS
I/O
DEVICE
IOR
MEMW
IOW
NOTE:
The address lines need pull-up resistors.
FIGURE 6. APPLICATION FOR DMA SYSTEM
13
FN2967.3
October 25, 2011
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