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參數資料
| 型號： | XR16C854CJ-F |
| 廠商： | Exar Corporation |
| 文件頁數： | 33/53頁 |
| 文件大小： | 0K |
| 描述： | IC UART FIFO 128B QUAD 68PLCC |
| 標準包裝： | 19 |
| 特點： | * |
| 通道數： | 4，QUART |
| FIFO's： | 128 字節(jié) |
| 規(guī)程： | RS232，RS485 |
| 電源電壓： | 2.97 V ~ 5.5 V |
| 帶自動流量控制功能： | 是 |
| 帶IrDA 編碼器/解碼器： | 是 |
| 帶故障啟動位檢測功能： | 是 |
| 帶調制解調器控制功能： | 是 |
| 帶CMOS： | 是 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 68-LCC（J 形引線） |
| 供應商設備封裝： | 68-PLCC |
| 包裝： | 管件 |
| 其它名稱： | 1016-1655 XR16C854CJ-F-ND |
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XR16C854/854D
39
REV. 3.1.0
2.97V TO 5.5V QUAD UART WITH 128-BYTE FIFO
EFR[5]: Special Character Detect Enable
Logic 0 = Special Character Detect Disabled (default).
Logic 1 = Special Character Detect Enabled. The UART compares each incoming receive character with
data in Xoff-2 register. If a match exists, the receive data will be transferred to FIFO and ISR bit-4 will be set
to indicate detection of the special character. Bit-0 corresponds with the LSB bit of the receive character. If
flow control is set for comparing Xon1, Xoff1 (EFR [1:0]= ‘10’) then flow control and special character work
normally. However, if flow control is set for comparing Xon2, Xoff2 (EFR[1:0]= ‘01’) then flow control works
normally, but Xoff2 will not go to the FIFO, and will generate an Xoff interrupt and a special character
interrupt, if enabled via IER bit-5.
EFR[6]: Auto RTS Flow Control Enable
RTS# output may be used for hardware flow control by setting EFR bit-6 to logic 1. When Auto RTS is
selected, an interrupt will be generated when the receive FIFO is filled to the programmed trigger level and
RTS de-asserts to a logic 1 at the next upper trigger level/hysteresis level. RTS# will return to a logic 0 when
FIFO data falls below the next lower trigger level/hysteresis level. The RTS# output must be asserted (logic 0)
before the auto RTS can take effect. RTS# pin will function as a general purpose output when hardware flow
control is disabled.
Logic 0 = Automatic RTS flow control is disabled (default).
Logic 1 = Enable Automatic RTS flow control.
EFR[7]: Auto CTS Flow Control Enable
Automatic CTS Flow Control.
Logic 0 = Automatic CTS flow control is disabled (default).
Logic 1 = Enable Automatic CTS flow control. Data transmission stops when CTS# input de-asserts to logic
1. Data transmission resumes when CTS# returns to a logic 0.
4.20
Software Flow Control Registers (XOFF1, XOFF2, XON1, XON2) - Read/Write
These registers are used as the programmable software flow control characters xoff1, xoff2, xon1, and xon2.
For more details, see Table 7.
4.21
FIFO Status Register (FSTAT) - Read/Write
This register is applicable only to the 100 pin QFP XR16C854. The FIFO Status Register provides a status
indication for each of the transmit and receive FIFO. These status bits contain the inverted logic states of the
TXRDY# A-D outputs and the (un-inverted) logic states of the RXRDY# A-D outputs. The contents of the
FSTAT register are placed on the data bus when the FSRS# pin (pin 76) is a logic 0. Also see FSRS# pin
description.
FSTAT[3:0]: TXRDY# A-D Status Bits
Please see Table 5 for the interpretation of the TXRDY# signals.
FSTAT[7:4]: RXRDY# A-D Status Bits
Please see Table 5 for the interpretation of the RXRDY# signals.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| XR16C854CJTR-F | 制造商:Exar Corporation 功能描述:XR16C854CJTR-F |
| XR16C854CQ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| XR16C854CQ-0A-EVB | 功能描述:UART 接口集成電路 Supports C854 100 ld QFP, ISA Interface RoHS:否 制造商:Texas Instruments 通道數量:2 數據速率: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 |
| XR16C854CQ-F | 功能描述:UART 接口集成電路 UART RoHS:否 制造商:Texas Instruments 通道數量:2 數據速率: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 |
| XR16C854CQTR-F | 功能描述:UART 接口集成電路 UART RoHS:否 制造商:Texas Instruments 通道數量:2 數據速率: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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