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YMF721 데이터시트(PDF) 24 Page - LSI Computer Systems

부품명 YMF721
상세설명  FM Wavetable Synthesizer LSI
PDF  41 Pages
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제조업체  LSI [LSI Computer Systems]
홈페이지  http://www.lsicsi.com
Logo LSI - LSI Computer Systems

YMF721 데이터시트(HTML) 24 Page - LSI Computer Systems

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YMF721
July 10, 1997
- 24 -
AC Characteristics
1. CPU interface (Refer to Fig. 1, 2, 3)
Notes : VSS=0[V], TOP=0~70
°C, V
DD=5.0
±0.25[V]
2. Serial audio interface (Refer to Fig. 4.)
Notes : VSS=0[V], TOP=0~70
°C, V
DD=5.0
±0.25[V]
Sampling frequency (fs) is 44.1 kHz. Duty factor is measured at 1/2 VDD
3. Others
Notes : VSS=0[V], TOP=0~70
°C
/RESETSEL = "H". Duty factor is measured at 1/2 VDD
Item
Symbol
Min.
Typ.
Max.
Unit
Address set up to /IOW, /IOR active
tAS
30
ns
Address hold
to /IOW, /IOR inactive
tAH
10
ns
/IOW Write Pulse Width
tWW
50
ns
Write Data set up to /IOW active
tWDS
10
ns
Write Data hold to /IOW inactive
tWDH
10
ns
/IOR Read Pulse Width
tRW
80
ns
Read Data access time
tACC
60
ns
Read Data hold from /IOR inactive
tRDH
10
ns
Chip select setup time
tCS
5ns
Chip select hold time
tCH
10
ns
RESET Pulse Width
tRST
100
ms
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
CLKO frequency
fCLKO16
-
16.9344
-
MHz
CLKO duty
DCLKO16
40
50
60
%
BCO frequency
fBCK
-
2.1168
-
MHz
BCO duty
DBCLK
40
50
60
%
Serial data setup time
tDS
BCO
- /DO3-0
-
118
-
ns
Serial data hold tim
tDH
BCO
¯ /DO3-0
-
118
-
ns
LRO setup time
tLRS
BCO
- /LRO
-
118
-
ns
LRO hold time
tLRH
BCO
¯ /LRO
-
118
-
ns
WCO setup time
tWCS
BCO
- /WCO
-
118
-
ns
WCO hold time
tWCH
BCO
¯ /WCO
-
118
-
ns
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Master Clock Frequency
f33
VDD=5.0
±0.25[V]
33.8688
MHz
(X’tal 33)
Duty
Df33
VDD=3.3
±0.3[V]
40
50
60
%
Power Consumption
IOP1
VDD=5.25[V]
40
50
mA
(during normal operation)
IOP2
VDD=3.60[V]
25
30
mA
Power Consumption
IOP3
VDD=5.25[V]
25
50
mA
(during power down mode)
IOP4
VDD=3.60[V]
15
30
mA



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