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參數(shù)資料
| 型號(hào)： | LM8500IMT9 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類(lèi)： | 消費(fèi)家電 |
| 英文描述： | Four Wire Resistive Touchscreen Controller with Brownout |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO48 |
| 封裝： | TSSOP-48 |
| 文件頁(yè)數(shù)： | 5/20頁(yè) |
| 文件大小： | 319K |
| 代理商： | LM8500IMT9 |
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2.0 Pin Descriptions
Pinouts for 44- and 48-Pin Packages
Pin Name
RESET
DTR
Direction
I
Pin Description
44-Pin LLP
6
7
44-Pin PLCC
1
2
48-Pin TSSOP
1
2
Reset pin, pull low to reset
UART Data terminal ready signal, low
if not ready
Watchdog output, tie to RESET pin
for correct function
Used to set if crystal is 3.3 MHz (low)
or 10 MHz (floating or pulled high)
I
WD_OUT
O
8
3
3
CLK_SET
1
I
9
4
4
Unused
2
Unused
2
Unused
2
Unused
2
OSC_OUT
OSC_IN
Unused
2
Unused
2
UART_TX
10
11
12
13
14
15
16
17
18
5
6
7
8
9
10
11
12
13
5
6
7
8
9
10
11
12
13
O
I
Clock oscillator output
Clock oscillator input
O
UART transmit pin (inverted for use
with standard RS-232 drivers)
UART receive pin (inverted for use
with standard RS-232 drivers
Shutdown pin, puts the device in halt
mode if pulled low
UART_RX
I
19
14
14
SHUTDOWN
I
20
15
15
Unused
2
Unused
2
WAKE-UP
21
22
23
16
17
18
16
17
18
I
Used to wake up the processor from
halt mode with touch on touch screen
Drives the X+ wire, also analog input
when sampling
Drives the Y- wire, also analog input
when sampling
Drives the X- wire, also analog input
when sampling
Drives the Y+ wire, also analog input
when sampling
X+
I/O
24
19
19
Y-
I/O
25
20
20
X-
I/O
26
21
21
Y+
I/O
27
22
22
Unused
2
Unused
2
FILTER_OUT
FILTER_IN
GND
AGND
AV
CC
28
29
30
31
32
33
34
23
24
25
26
27
28
29
23
24
25
26
27
28
31
O
I
Analog output to the filter
Analog input from the filter
Digital ground
Analog ground
Analog power supply, connect to filter
for best performance
Digital power supply
V
CC
Unused
2
Unused
2
Unused
2
Unused
2
Unused
2
Unused
2
Unused
2
35
X
X
36
37
38
39
40
30
X
X
31
32
33
34
35
32
33
34
35
36
37
38
39
L
www.national.com
5
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| LM8500IMT9B | 功能描述:觸摸屏轉(zhuǎn)換器和控制器 RoHS:否 制造商:Microchip Technology 類(lèi)型:Resistive Touch Controllers 輸入類(lèi)型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類(lèi)型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20 |
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| LM8500IVA9 | 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Four Wire Resistive Touchscreen Controller with Brownout |
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