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参数资料
| 型号： | ST16C2550CJ-0A-EB |
| 厂商： | Exar Corporation |
| 文件页数： | 32/37页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR ST16C2550 44PLCC |
| 标准包装： | 1 |
| 系列： | * |
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ST16C2550
4
2.97V TO 5.5V DUART WITH 16-BYTE FIFO
REV. 4.4.1
PIN DESCRIPTIONS
Pin Description
NAME
40-PDIP
PIN #
44-PLCC
PIN #
48-TQFP
PIN #
TYPE
DESCRIPTION
DATA BUS INTERFACE
A2
A1
A0
26
27
28
29
30
31
26
27
28
I
Address data lines [2:0]. These 3 address lines select one
of the internal registers in UART channel A/B during a
data bus transaction.
D7
D6
D5
D4
D3
D2
D1
D0
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
3
2
1
48
47
46
45
44
IO
Data bus lines [7:0] (bidirectional).
IOR#
21
24
19
I
Input/Output Read Strobe (active low). The falling edge
instigates an internal read cycle and retrieves the data
byte from an internal register pointed to by the address
lines [A2:A0]. The data byte is placed on the data bus to
allow the host processor to read it on the rising edge.
IOW#
18
20
15
I
Input/Output Write Strobe (active low). The falling edge
instigates an internal write cycle and the rising edge
transfers the data byte on the data bus to an internal reg-
ister pointed by the address lines.
CSA#
14
16
10
I
UART channel A select (active low) to enable UART
channel A in the device for data bus operation.
CSB#
15
17
11
I
UART channel B select (active low) to enable UART
channel B in the device for data bus operation.
INTA
30
33
30
O
UART channel A Interrupt output. The output state is
defined by the user and through the software setting of
MCR[3]. INTA is set to the active mode and OP2A# out-
put to a logic 0 when MCR[3] is set to a logic 1. INTA is
set to the three state mode and OP2A# to a logic 1 when
MCR[3] is set to a logic 0 (default). See MCR[3].
INTB
29
32
29
O
UART channel B Interrupt output. The output state is
defined by the user and through the software setting of
MCR[3]. INTB is set to the active mode and OP2B# out-
put to a logic 0 when MCR[3] is set to a logic 1. INTB is
set to the three state mode and OP2B# to a logic 1 when
MCR[3] is set to a logic 0 (default). See MCR[3].
TXRDYA#
-
1
43
O
UART channel A Transmitter Ready (active low). The out-
put provides the TX FIFO/THR status for transmit channel
A. See Table 2. If it is not used, leave it unconnected.
RXRDYA#
-
34
31
O
UART channel A Receiver Ready (active low). This out-
put provides the RX FIFO/RHR status for receive channel
A. See Table 2. If it is not used, leave it unconnected.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ST16C2550CJ44 | 制造商:EXAR 制造商全称:EXAR 功能描述:2.97V TO 5.5V DUART WITH 16-BYTE FIFO |
| ST16C2550CJ44-F | 功能描述:UART 接口集成电路 2.97V-5.5V 16B FIFO temp 0C to 70C; UART RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| ST16C2550CJ44TR-F | 功能描述:UART 接口集成电路 DUAL UART W/16BYTE FIFO RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| ST16C2550CP40 | 功能描述:UART 接口集成电路 DUAL UART W/16 BYTE FIFO RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| ST16C2550CP40-F | 功能描述:UART 接口集成电路 DUAL UART W/16 BYTE FIFO RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
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