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参数资料
| 型号： | LC82151 |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP144 |
| 封装： | SQFP-144 |
| 文件页数： | 3/8页 |
| 文件大小： | 64K |
| 代理商： | LC82151 |
Pin No.
Pin
I/O
Pin function
1VSS
P
Ground
2
VP
I
ICE vector address signal
3
RDY
O
ICE ready signal
4
VPA
I
ICE valid program address signal
5
VDA
I
ICE valid data address signal
6
A19
O
7
A18
O
Address bus
8
A17
O
9
A16
O
10
D7
B
11
D6
B
12
D5
B
13
D4
B
Data bus
14
D3
B
15
D2
B
16
D1
B
17
D0
B
18
VDD
P
Power supply
19
VSS
P
Ground
20
RD
O
Read signal from the CPU
21
WR
O
Write signal from the CPU
22
ROMCS
O
Program ROM chip select signal
23
RAMCS
O
Working RAM chip select signal
24
IOCS
O
External I/O chip select signal
25
MCS
O
External I/O chip select signal
26
RAS/PG1
B
DRAM row address strobe/general-purpose port G
27
CAS/PG2
B
DRAM column address strobe/general-purpose port G
28
PA7
B
29
PA6
B
30
PA5
B
31
PA4
B
General-purpose port A
32
PA3
B
33
PA2
B
34
PA1
B
35
PA0
B
36
VSS
P
Ground
37
VDD
P
Power supply
38
RIN
I
PLL bias input
39
PHASEO
O
PLL phase detector output
40
VCOI
I
PLL voltage-controlled oscillator input
41
INT8/PB7
B
External interrupt request signal/general-purpose port B
42
INT2/PB6
B
43
BACK/PB5
B
CPU bus acknowledge signal/general-purpose port B
44
BREQ/PB4
B
CPU bus request signal/general-purpose port B
45
EXRDY/PB3
B
External ready input/general-purpose port B
46
PB2
B
47
PB1
B
General-purpose port B
48
PB0
B
49
NMI
I
Non-maskable interrupt request signal
50
TEST2
I
Test pin
No. 5601-3/8
LC82151
Type
I
Input pins
B
Bidirectional pins
NC
No connection
O
Output pins
P
Power pins
Continued on next page.
Pin Assignment
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