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參數(shù)資料
| 型號： | LC8213K |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP80 |
| 封裝： | QFP-80 |
| 文件頁數(shù)： | 3/5頁 |
| 文件大?。?/td> | 171K |
| 代理商： | LC8213K |
Switching Characteristics at VDD = 2.7 to 5.5 V, Ta = –20 to +75°C, VSS = 0 V
I: Input pin O: Output pin B: Bi-directional pin P: Power supply pin NC: No connection
No. 5753-3/5
LC8213K
Pin No.
Pin name
I/O
Function
1CSI
Chip select signal
2RDI
Read signal from the CPU
3WRI
Write signal from the CPU
4A2
I
5A1I
Address inputs
6A0
I
7VDD
P
Power supply
8NC
9D7
B
10
D6
B
Data bus
11
D5
B
12
D4
B
13
VSS
P
Ground
14
D3
B
15
D2
B
Data bus
16
D1
B
17
D0
B
18
NC
19
VDD
P
Power supply
20
IREQ
O
Interrupt request signal
21
DREQ
O
DMA request signal output to external DMA controller
22
DACK
I
DMA acknowledge signal input from external DMA controller
23
NC
24
NC
25
NC
26
NC
27
RESET
I
Reset signal input
28
CLK
I
Clock input
29
VSS
P
Ground
30
TEST4
I
Test pin
31
VDD
P
Power supply
32
TEST3
I
33
TEST2
I
Test pin
34
TEST1
I
35
TEST0
I
36
NC
37
BREQ
O
Bus request signal for the image bus
38
BACK
I
Acknowledge signal for the image bus
39
IDREQ
I
DMA request signal from I/O devices
40
IDACK
O
DMA acknowledge signal to I/O devices
41
AEN
O
Address enable
42
AST
O
Address strobe
43
MDEN
O
Memory data enable
44
MRD
O
Image memory read signal
45
MWR
O
Image memory write signal
46
IORD
O
I/O device read signal
47
IOWR
O
I/O device write signal
48
LDE
O
Image bus lower byte valid signal
49
UDE
O
Image bus upper byte valid signal
50
READY
I
Ready signal
Continued on next page.
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