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参数资料
| 型号： | PC16550D |
| 厂商： | National Semiconductor Corporation |
| 英文描述： | PC16550D Universal Asynchronous Receiver/Transmitter with FIFOs |
| 中文描述： | PC16550D通用异步接收器/发射器与FIFO的 |
| 文件页数： | 5/22页 |
| 文件大小： | 344K |
| 代理商： | PC16550D |
3.0
AC Electrical Characteristics
(Continued)
Symbol
Parameter
Conditions
Min
Max
Units
Transmitter
t
HR
Delay from WR, WR (WR THR)
to Reset Interrupt
100 pF Load
175
ns
t
IR
Delay from RD, RD (RD IIR) to Reset
Interrupt (THRE)
100 pF Load
250
ns
t
IRS
Delay from Initial INTR Reset to Transmit
Start
8
24
BAUDOUT
Cycles
t
SI
Delay from Initial Write to Interrupt
(Note 1)
16
24
BAUDOUT
Cycles
t
STI
Delay from Stop to Interrupt (THRE)
(Note 1)
8
8
BAUDOUT
Cycles
t
SXA
Delay from Start to TXRDY active
100 pF Load
8
BAUDOUT
Cycles
t
WXI
Delay from Write to TXRDY inactive
100 pF Load
195
ns
Modem Control
t
MDO
Delay from WR, WR (WR MCR) to
Output
100 pF Load
200
ns
t
RIM
Delay from RD, RD to Reset Interrupt
(RD MSR)
100 pF Load
250
ns
t
SIM
Delay from MODEM Input to Set Interrupt
100 pF Load
250
ns
Note 1:
This delay will be lengthened by 1 character time, minus the last stop bit time if the transmitter interrupt delay circuit is active. (See FIFO Interrupt Mode
Operation).
Note 2:
These specifications are preliminary.
4.0
Timing Waveforms
(All timings are referenced to valid 0 and valid 1)
External Clock Input (24.0 MHz Max.)
TL/C/8652–2
AC Test Points
TL/C/8652–3
Note 1:
The 2.4V and 0.4V levels are the voltages that the inputs are driven to during AC testing.
Note 2:
The 2.0V and 0.8V levels are the voltages at which the timing tests are made.
BAUDOUT Timing
TL/C/8652–4
5
相关PDF资料 |
PDF描述 |
|---|---|
| PC16550DN | PC16550D Universal Asynchronous Receiver/Transmitter with FIFOs |
| PC16550DV | PC16550D Universal Asynchronous Receiver/Transmitter with FIFOs |
| PC16552C | Dual Universal Asynchronous Receiver/Transmitter with FIFOs |
| PC16552CV | Dual Universal Asynchronous Receiver/Transmitter with FIFOs |
| PC16552D | Dual Universal Asynchronous Receiver/Transmitter with FIFOs |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PC16550DN | 功能描述:UART 接口集成电路 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 |
| PC16550DN | 制造商:Texas Instruments 功能描述:IC CMOS UART FIFO 6550 DIP40 |
| PC16550DN/NOPB | 功能描述:UART 接口集成电路 UNIV ASYNCHRONOUS RCVR/TRANS W/ 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 |
| PC16550DV | 功能描述:UART 接口集成电路 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 |
| PC16550DV/NOPB | 功能描述:UART 接口集成电路 UART W/ FIFO IN PCC 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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