參數(shù)資料
型號(hào)： LM9617CCEA
廠商： National Semiconductor Corporation
英文描述： Monochrome CMOS Image Sensor VGA 30 FPS
中文描述： 單色CMOS圖像傳感器顯卡30醫(yī)科
文件頁數(shù)： 4/37頁
文件大?。?/td> 366K
代理商： LM9617CCEA
Confidential
4
www.national.com
Pin Descriptions
Pin
Name
I/O
Typ
Description
1
vsrvdd
I0
P
Analog bidirectional, it should be connect to ground via a 1.0
μ
f capacitor. This pin is the
internal charge pump voltage source.
2
vrl
I
A
Anti blooming pin. This pin is normally tied to ground.
3
vdd_pix
I
P
3.3 volt supply for the pixel array.
4
irq
O
D
Digital output, the interrupt request pin. This pin generates interrupts during snapshot
mode.
5
sadr
I
D
Digital input with pull down resistor. This pin is used to program different slave addresses
for the sensor in an I
2
C compatible system.
6
sda
IO
D
I
2
C compatible serial interface data bus. The output stage of this pin has an open drain
driver.
7
sclk
I
D
I
2
C compatible serial interface clock.
8
snapshot
I
D
Digital input with pull down resistor used to activate (trigger) a snapshot sequence.
9
resetb
I
D
Digital input with pull up resistor. When forced to a logic 0 the sensor is reset to its default
power up state. The
resetb
signal is internally synchronized to
mclk
which must be run-
ning for a reset to occur.
10
pdwn
I
D
Digital input with pull down resistor. When forced to a logic 1 the sensor is put into power
down mode.
11
vss_dig
I
P
0 volt power supply for the digital circuits.
12
vdd_dig
I
P
3.3 volt power supply for the digital circuits.
13
hsync
IO
D
Digital Bidirectional. This is a dual mode pin. When the sensor’s digital video port is con-
figured to be a master, (the default), this pin is an output and is the horizontal synchroni-
zation pulse. When the sensor’s digital video port is configured to be a slave, this pin is
an input and is the row trigger.
14
vsync
IO
D
Digital Bidirectional. This is a dual mode pin. When the sensor’s digital video port is con-
figured to be a master, (the default), this pin is an output and is the vertical synchroniza-
tion pulse. When the sensor’s digital video port is configured to be a slave, this pin is an
input and is the frame trigger.
15
pclk
O
D
Digital output. The pixel clock.
16
mclk
I
D
Digital input. The sensor’s master clock input.
17
d0
O
D
Digital output. Bit 0 of the digital video output bus. This output can be put into tri-state
mode.
18
NC
Pin not used, do not connect.
19
NC
Pin not used, do not connect.
20
d1
O
D
Digital output. Bit 1 of the digital video output bus. This output can be put into tri-state
mode.
21
d2
O
D
Digital output. Bit 2 of the digital video output bus. This output can be put into tri-state
mode.
22
d3
O
D
Digital output. Bit 3 of the digital video output bus. This output can be put into tri-state
mode.
23
d4
O
D
Digital output. Bit 4 of the digital video output bus. This output can be put into tri-state
mode.
24
d5
O
D
Digital output. Bit 5 of the digital video output bus. This output can be put into tri-state
mode.
25
d6
O
D
Digital output. Bit 6 of the digital video output bus. This output can be put into tri-state
mode.
L
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