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參數(shù)資料
| 型號(hào)： | LC82161B-E |
| 元件分類(lèi)： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP208 |
| 封裝： | SQFP-208 |
| 文件頁(yè)數(shù)： | 14/19頁(yè) |
| 文件大小： | 225K |
| 代理商： | LC82161B-E |
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LC82161B-E
No.7775-4/19
Pin Functions
I/O
Pin type
I
Input pins
3IC
3.3 V CMOS inputs
3O8
3.3 V 8 mA output
O
Output pins
3IS
3.3 V Schmidt trigger inputs
3T4
3.3 V 4 mA tristate output
B
Bidirectional pins
3ICD
3.3 V CMOS inputs with pull-down resistor
3A
3.3 V analog
P
Power supply pins
3ICU
3.3 V CMOS inputs with pull-up resistor
2A
2.5 V analog
NC
Unused pins
3O4
3.3 V 4 mA outputs
X
Oscillator amplifier
Pin No.
Pin name
I/O
Pin type
Function
1
DGND
P
Digital system ground
2
A15
O
3O4
3
A14
O
3O4
4
A13
O
3O4
5
A12
O
3O4
6
A11
O
3O4
7
A10
O
3O4
8
A9
O
3O4
9
A8
O
3O4
10
A7
O
3O4
11
A6
O
3O4
12
A5
O
3O4
Address bus
13
TEST3
I
3ICD
Test
14
TEST2
I
3ICD
Test
15
TEST1
I
3ICD
Test
16
PVDD2
P
PLL power supply (+2.5 V)
17
PGND
P
PLL ground
18
RIN1
I
2A
PLL1 bias input
19
PLLI1
I
2A
PLL1 VCO input
20
PLLO1
O
2A
PLL1 charge pump output
21
TEST0
I
3ICD
Test
22
ROMBUSW
I
3ICD
Memory bus width selection
23
A4
O
3O4
24
A3
O
3O4
25
A2
O
3O4
26
A1
O
3O4
27
A0
O
3O4
Address bus
28
MWRLn
O
3O4
External memory write signal
29
MWRHn
O
3O4
External memory write signal
30
MRDn
O
3O4
External memory read signal
31
RESETn
I
3IS
Reset
32
XTAL1
I
X
Crystal oscillator connection (8.192 MHz)
33
XTAL2
O
X
34
DVDD3
P
Digital system power supply (+3.3 V)
35
DGND
P
Digital system ground
36
CS0n
O
3O4
External memory chip select 0
37
CS1n/PD4
B
3ICU/3T4
External memory chip select 1 or I/O port
38
CS2n/PD5
B
3ICU/3T4
External memory chip select 2 or I/O port
39
CS3n/PD6
B
3ICU/3T4
External memory chip select 3 or I/O port
40
DRCS1n
O
3O4
SDRAM chip select 1
41
DRCS0n
O
3O4
SDRAM chip select 0
42
RASn
O
3O4
Row address strobe
43
CASn
O
3O4
Column address strobe
44
DRCLK
O
3O8
SDRAM clock
45
DRWE
O
3O4
SDRAM write enable
46
DQM1
O
3O4
SDRAM byte mask 1
47
DQM0
O
3O4
SDRAM byte mask 0
48
M1_TXEN
O
3O4
MAC1 transmit enable
Continued on next page.
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