參數(shù)資料
型號： DS2251T-128-16
廠商： DALLAS SEMICONDUCTOR
元件分類： Microcontroller
英文描述： 8-BIT, MICROCONTROLLER, SMA72
封裝： SIMM-72
文件頁數(shù)： 15/20頁
文件大小： 654K
代理商： DS2251T-128-16
DS2251T
4 of 20
PIN ASSIGNMENT
1
P1.0
19
XTAL2
37
P0.2
55
INTB
2
P1.1
20
GND
38
P0.1
56
BD0
3
P1.2
21
P2.0
39
P0.0
57
BD1
4
P1.3
22
P2.1
40
VCC
58
BD2
5
P1.4
23
P2.2
41
BA0
59
BD3
6
P1.5
24
P2.3
42
BA1
60
BD4
7
P1.6
25
P2.4
43
BA2
61
BD5
8
P1.7
26
P2.5
44
BA3
62
BD6
9
RST
27
P2.6
45
BA4
63
BD7
10
P3.0 RXD
28
P2.7
46
BA5
64
R/ W
11
P3.1 TXD
29
PSEN
47
BA6
65
PF
12
P3.2 INT0
30
ALE
48
BA7
66
PE3
13
P3.3 INT1
31
PROG
49
BA8
67
PE4
14
P3.4 T0
32
P0.7
50
BA9
68
INTP
15
P3.5 T1
33
P0.6
51
BA10
69
INTA
16
P3.6 WR
34
P0.5
52
BA11
70
SQW
17
P3.7 RD
35
P0.4
53
BA12
71
VRST
18
XTAL1
36
P0.3
54
BA13
72
BA15
PIN DESCRIPTION
PIN
DESCRIPTION
39-32
P0.0 - P0.7. General purpose I/O Port 0. This port is open-drain and cannot drive a logic 1.
It requires external pullups. Port 0 is also the multiplexed Expanded Address/Data bus.
When used in this mode, it does not require pullups.
1-8
P1.0 - P1.7. General purpose I/O Port 1.
21-28
P2.0 - P2.7. General purpose I/O Port 2. Also serves as the MSB of the Expanded Address
bus.
10
P3.0 RXD. General purpose I/O port pin 3.0. Also serves as the receive signal for the on-
board UART. This pin should NOT be connected directly to a PC COM port.
11
P3.1 TXD. General purpose I/O port pin 3.1. Also serves as the transmit signal for the on-
board UART. This pin should NOT be connected directly to a PC COM port.
12
P3.2 INT0 . General purpose I/O port pin 3.2. Also serves as the active low External
Interrupt 0.
13
P3.3 INT1 . General purpose I/O port pin 3.3. Also serves as the active low External
Interrupt 1.
14
P3.4 T0. General purpose I/O port pin 3.4. Also serves as the Timer 0 input.
15
P3.5 T1. General purpose I/O port pin 3.5. Also serves as the Timer 1 input.
相關PDF資料
PDF描述
DS2251T-64-16 8-BIT, 16 MHz, MICROCONTROLLER, SMA72
DS2251T-32-16 8-BIT, 16 MHz, MICROCONTROLLER, SMA72
DS2252T-128-16 8-BIT, 16 MHz, MICROCONTROLLER, SMA40
DS2252T-64-16 8-BIT, MICROCONTROLLER, SMA40
DS2252T-32-16 8-BIT, MICROCONTROLLER, SMA40
相關代理商/技術參數(shù)
參數(shù)描述
DS2251T-128-16# 功能描述:模塊化系統(tǒng) - SOM 128K Soft MCU Module RoHS:否 制造商:Digi International 外觀尺寸:ConnectCore 9P 處理器類型:ARM926EJ-S 頻率:150 MHz 存儲容量:8 MB, 16 MB 存儲類型:NOR Flash, SDRAM 接口類型:I2C, SPI, UART 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 尺寸:1.97 in x 1.97 in x 6.1 in
DS2251T32-08 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller
DS2251T-32-12 功能描述:模塊化系統(tǒng) - SOM RoHS:否 制造商:Digi International 外觀尺寸:ConnectCore 9P 處理器類型:ARM926EJ-S 頻率:150 MHz 存儲容量:8 MB, 16 MB 存儲類型:NOR Flash, SDRAM 接口類型:I2C, SPI, UART 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 尺寸:1.97 in x 1.97 in x 6.1 in
DS2251T32-12 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller
DS2251T-32-16 功能描述:模塊化系統(tǒng) - SOM 32K Soft MCU Module RoHS:否 制造商:Digi International 外觀尺寸:ConnectCore 9P 處理器類型:ARM926EJ-S 頻率:150 MHz 存儲容量:8 MB, 16 MB 存儲類型:NOR Flash, SDRAM 接口類型:I2C, SPI, UART 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 尺寸:1.97 in x 1.97 in x 6.1 in
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