參數(shù)資料
型號(hào): SAA7740H
廠(chǎng)商: NXP SEMICONDUCTORS
元件分類(lèi): 數(shù)字信號(hào)處理
英文描述: Digital Audio Processing IC DAPIC
中文描述: 4-BIT, 23 MHz, OTHER DSP, PQFP64
封裝: 14 X 20 MM, 2.80 MM HEIGHT, PLASTIC, QFP-64
文件頁(yè)數(shù): 19/28頁(yè)
文件大?。?/td> 142K
代理商: SAA7740H
1997 May 30
19
Philips Semiconductors
Product specification
Digital Audio Processing IC (DAPIC)
SAA7740H
handbook, full pagewidth
MLC158
RAS
A0 to A8
CAS
WE
OE
D0 to D3
WE
OE
D0 to D3
RAS
A0 to A8
CAS
ROW
REFRESH
WRITE
READ
tp;RAS
tpCAS;RAS
tp;RAS
tRAS;CA
tW;RAS
thDAT;RAS
DATA IN
t
th;DAT
DATA
IN
toff
twcy;def
twcy;def
twcy;def
twcy;def
DATA OUT
DATA OUT
thDAT;CAS
tacc;RAS
trcy;def
trcy;def
tacc;CA
tacc;CAS
trcy;def
trcy;def
tsu;RA
th;RA
t
tr
tsu;CA
th1CA;CAS
th2CA;CAS
ROW
ADD
COLUMN ADD
COLUMN ADD
COLUMN
thCA;RASp
tlCA;RAS
th;RAS
tcy;CAS
tp;CAS
tt
th;CAS
tW;CAS
tdRAS;CAS
tpCAS;RAS
tp;RAS
tf
thCA;RAS
tW;RAS
tr
V
V
RAS;CA
su;DAT
H
L
Fig.10 Timing diagram DRAM interface.
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