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| 型號(hào)： | LC897194 |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP144 |
| 封裝： | SQFP-144 |
| 文件頁(yè)數(shù)： | 7/11頁(yè) |
| 文件大?。?/td> | 243K |
| 代理商： | LC897194 |
No. 5572-5/11
LC897194
Pin Functions
typ
I
Input
B
Bidirection
NC
Not connected
O
Output
P
Power
Pin No.
Symbol
Type
Function
1VSS0
P
2
ZRAS0
O
RAS signal output 0 to the buffer DRAM (Output 0 is normally used.)
3
ZRAS1
O
RAS signal output 1 to the buffer DRAM
4VSS0
P
5
ZCAS0
O
CAS signal output 0 to the buffer DRAM (Output 0 is normally used.)
6
ZCAS1
O
CAS signal output 1 to the buffer DRAM
7VSS0
P
8
ZOE
O
Buffer RAM output enable
9
ZUWE
O
Buffer RAM upper write enable
10
ZLWE
O
Buffer RAM lower write enable
11
RA0
O
RA0 to RA9 are used for the data buffer DRAM address.
12
RA1
O
13
RA2
O
14
RA3
O
15
RA4
O
16
RA5
O
17
RA6
O
18
VDD
P
19
VSS0
P
20
RA7
O
RA0 to RA9 are used for the data buffer DRAM address.
21
RA8
O
22
RA9
O
23
TEST0
NC
Used for testing. There should be no connections to these pins.
24
TEST1
NC
These pins must be left open.
25
TEST2
NC
26
TEST3
NC
27
TEST4
NC
28
IO0
B
Data I/O to/from data buffer DRAM
29
IO1
B
Pull-up resistors are built in.
30
IO2
B
31
IO3
B
32
IO4
B
33
IO5
B
34
IO6
B
35
IO7
B
36
VSS0
P
37
VDD
P
Continued on next page.
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