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參數(shù)資料
| 型號： | LC897127K |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | SCSI CD-ROM Decoder with On-Chip DVD Interface |
| 中文描述： | 的SCSI CD - ROM解碼器帶有片影碟接口 |
| 文件頁數(shù)： | 7/14頁 |
| 文件大?。?/td> | 79K |
| 代理商： | LC897127K |
No. 6251-7/14
LC897127K
Continued from preceding page.
Pin No.
Pin
Type
Function
108
V
SS1
V
DD
V
SS0
RAS0
P
109
P
110
P
111
O
Buffer RAM RAS signal output 0
112
DVDSEL
P
V
SS0
selects the DVD interface and V
DD
selects the I/O port function.
Buffer RAM CAS signal output 0 (Normally fixed at 0 (low).)
113
CAS0
O
114
CAS1
O
Buffer RAM CAS signal output 1
115
OE
O
Buffer RAM output enable
116
UWE(RA9)
O
Buffer RAM upper write enable (RA9 when 8M or more DRAM is used.)
117
LWE
O
Buffer RAM lower write enable
118
V
SS0
RA0
P
119
O
120
RA1
O
121
RA2
O
122
RA3
O
Buffer RAM address signal outputs
123
RA4
O
124
RA5
O
125
RA6
O
126
V
DD
V
SS0
RA7
P
127
P
128
O
Buffer RAM address signal outputs
129
RA8
O
130
IO15
B
131
IO14
B
132
IO13
B
133
IO12
B
Buffer RAM data I/O.
134
IO11
B
These pins have built-in pull-up resistors.
135
IO10
B
136
IO9
B
137
IO8
B
138
V
SS0
IO7
P
139
B
140
IO6
B
Buffer RAM data I/O.
141
IO5
B
These pins have built-in pull-up resistors.
142
IO4
B
143
IO3
B
144
V
DD
P
Unused ("NC") pins must be left open.
Pins whose name is under a bar operate with inverted (negative) logic.
V
SS0
is the logic system ground and V
SS1
is the SCSI interface driver ground.
If DRAM is used, applications must adopt measures to prevent undershoot and other DRAM problems. Such measures include inserting resistors in the
RAS and CAS lines and inserting capacitors between V
SS
pins. See the article on Designing with the Latest Microcontrollers and Memory in special issue
number 25 of Transistor Technology for details on these measures.
Since this device includes buffers that sink a current of 48 mA, applications must take adequate noise prevention measures.
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相關(guān)代理商/技術(shù)參數(shù) |
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| LC897193 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Interface IC |
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| LC897390K | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:DVD【R/RW Drive Signal-Processing IC Developed |
| LC898023 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:LC898023 |
| LC898023K | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
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