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參數(shù)資料
| 型號： | ST16C550CP40-F |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 30/35頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC INTERFACE UART |
| 標(biāo)準(zhǔn)包裝： | 9 |
| 系列： | * |
| 其它名稱： | 1016-1759 |
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ST16C550
4
Rev. 5.01
Symbol
Pin
Signal
Pin Description
40
44
48
type
SYMBOL DESCRIPTION
A0
28
31
28
I
Address-0 Select Bit Internal registers address selection.
A1
27
30
27
I
Address-1 Select Bit Internal registers address selection.
A2
26
29
26
I
Address-2 Select Bit Internal registers address selection.
IOR
22
25
20
I
Read data strobe. Its function is the same as -IOR (see -
IOR), except it is active high. Either an active -IOR or IOR
is required to transfer data from 16C550 to CPU during a
read operation. Connect to logic 0 when using -IOR.
CS0
12
14
9
I
Chip Select-0. Logical 1 on this pin provides the chip select-
0 function. Connect CS0 to logic 1 if using CS1 or -CS2.
CS1
13
15
10
I
Chip Select-1. Logical 1 on this pin provides the chip select-
1 function. Connect CS1 to logic 1 if using CS0 or -CS2.
-CS2
14
16
11
I
Chip Select -2. Logical 0 on this pin provides the chip select-
2 function. Connect to logic 0 if using CS0 or CS1.
IOW
19
21
17
I
Write data strobe. Its function is the same as -IOW (see -
IOW), but it acts as an active high input signal. Either -IOW
or IOW is required to transfer data from the CPU to
ST16C550 during a write operation. Connect to logic 0 when
using -IOW.
-AS
25
28
24
I
Address Strobe. A logic 1 transition on -AS latches the state
of the chip selects and the register select bits, A0-A2. This
input is used when address and chip selects are not stable
for the duration of a read or write operation, i.e., a micropro-
cessor that needs to de-multiplex the address and data bits.
If not required, the -AS input can be permanently tied to a
logic 0.
D0-D7
1-8
2-9
43-47
2-4
I/O
Data Bus (Bi-directional) - These pins are the eight bit, tri-
state data bus for transferring information to or from the
controlling CPU. D0 is the least significant bit and the first
data bit in a transmit or receive serial data stream.
GND
20
22
18
Pwr
Signal and Power Ground.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST16C550CP40-F | 制造商:Exar Corporation 功能描述:IC UART INTERFACE 1.5Mbps 5.5V DIP-40 |
| ST16C550CQ-0A-EVB | 功能描述:界面開發(fā)工具 Supports C550 48 ld TQFP, ISA Interface RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| ST16C550CQ48 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| ST16C550CQ48-F | 功能描述:UART 接口集成電路 2.97V-5.5V 16B FIFO temp 0C to 70C; UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| ST16C550CQ48TR-F | 功能描述:UART 接口集成電路 UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
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