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參數(shù)資料
| 型號： | XR16C850CJ |
| 廠商： | EXAR CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | UART with 128-byte FIFO’s FIFO Counters and Half-duplex Control |
| 中文描述： | 1 CHANNEL(S), 2.25M bps, SERIAL COMM CONTROLLER, PQCC44 |
| 封裝： | PLASTIC, LCC-44 |
| 文件頁數(shù)： | 7/55頁 |
| 文件大小： | 331K |
| 代理商： | XR16C850CJ |
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XR16C850
7
Rev. 1.20
is framing error bit and D12 is the break bit.
BUS8/16
-
-
25
28
I
8 or 16 Bit Bus select (internal pull-up). For normal
8 bit data bus operation this pin should be connected
to VCC. Connect this pin to GND for 16 bit data bus
operation where RX data errors (parity, framing and
break) are presented on the data bus as D10, D11
and D12 along with the data byte.
CLK8/16
-
-
-
27
I
Transmit / Receive data sampling clock rate (inter-
nal pull-up). For normal operation this pin should be
connected to VCC for 16X sampling clock (stan-
dard). Connect to GND for 8X sampling to double the
data rates.
DRQ
-
-
-
32
O
Receive DMA Request. A Receive ready request is
generated by bringing a RxDRQ line to a high level.
DRQ line is held high until the corresponding DMA
acknowledge (-DACK) line goes low.
-DACK
-
-
-
46
I
DMA Acknowledge Bit (internal pull-up). DMA cycle
will start processing when CPU/Host sets this input
to low. Connect this pin to VCC when not used.
-DDIS
(See LPT-2)
GND
20
22
18
19
Pwr
Signal and Power Ground.
INT
(See IRQA)
-IOR
21
24
19
21
I
Input/Output Read (active low strobe). A logic 0 on
this pin transfers the contents of the 850 data bus to
the CPU. Connect this pin to VCC when IOR is used.
-IOW
18
20
16
17
I
Input/Output Write (active low strobe) - A logic 0 on
this pin transfers the contents of the CPU data bus
to the addressed internal register. Connect this pin
to VCC when IOW is used.
IRQA / INT
30
33
30
33
O
Interrupt Request “A” or Interrupt (three state, open
source, active high) - During PC mode of operation,
this pin functions as IRQA. IRQA is enabled when
Symbol
Pin
Signal
type
Pin Description
40
44
48
52
SYMBOL DESCRIPTION
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| XR16C850CM | UART with 128-byte FIFO’s FIFO Counters and Half-duplex Control |
| XR16C850CP | UART with 128-byte FIFO’s FIFO Counters and Half-duplex Control |
| XR16C850CQ | UART with 128-byte FIFO’s FIFO Counters and Half-duplex Control |
| XR16C850 | UART with 128-byte FIFO’s FIFO Counters and Half-duplex Control |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR16C850CJ-F | 功能描述:UART 接口集成電路 UARTW/128BYTE FIFO 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 |
| XR16C850CJTR-F | 制造商:Exar Corporation 功能描述:UART 1-CH 128Byte FIFO 3.3V/5V 44-Pin PLCC T/R 制造商:Exar Corporation 功能描述:XR16C850CJTR-F |
| XR16C850CM | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| XR16C850CM-0A-EVB | 功能描述:UART 接口集成電路 Supports C850 48 ld TQFP, ISA Interface 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 |
| XR16C850CM-F | 功能描述:UART 接口集成電路 UARTW/128BYTE FIFO 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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