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參數(shù)資料
| 型號： | ST16C580IQ48-F |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 35/39頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC UART FIFO 16B 48TQFP |
| 標準包裝： | 250 |
| 特點： | * |
| 通道數(shù)： | 1，UART |
| FIFO's： | 16 字節(jié) |
| 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(diào)制解調(diào)器控制功能： | 是 |
| 帶CMOS： | 是 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 48-TQFP |
| 供應商設備封裝： | 48-TQFP（7x7） |
| 包裝： | 托盤 |
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ST16C580
5
Rev. 1.22
RESET
35
I
Reset. (active high) - A logic 1 on this pin will reset the internal
registers and all the outputs. The UART transmitter output
and the receiver input will be disabled during reset time. (See
ST16C580 External Reset Conditions for initialization de-
tails.)
VCC
42
Pwr
Power Supply Input.
XTAL1
14
I
Crystal or External Clock Input - Functions as a crystal input
or as an external clock input. A crystal can be connected
between this pin and XTAL2 to form an internal oscillator
circuit. An external 1 M resistor is required between the
XTAL1 and XTAL2 pins (see figure 9). Alternatively, an
external clock can be connected to this pin to provide
custom data rates (Programming Baud Rate Generator
section).
XTAL2
15
O
Output of the Crystal Oscillator or Buffered Clock - (See also
XTAL1). Crystal oscillator output or buffered clock output.
-CD
40
I
Carrier Detect (active low) - A logic 0 on this pin indicates that
a carrier has been detected by the modem.
-CTS
38
I
Clear to Send (active low) - A logic 0 on the -CTS pin indicates
the modem or data set is ready to accept transmit data from
the 580. Status can be tested by reading MSR bit-4. This pin
only affects the transmit and receive operations when Auto
CTS function is enabled via the Enhanced Feature Register
(EFR) bit-7, for hardware flow control operation.
-DSR
39
I
Data Set Ready (active low) - A logic 0 on this pin indicates
the modem or data set is powered-on and is ready for data
exchange with the UART. This pin has no effect on the
UART’s transmit or receive operation.
-DTR
33
O
Data Terminal Ready (active low) - A logic 0 on this pin
indicates that the 580 is powered-on and ready. This pin can
be controlled via the modem control register. Writing a logic
1 to MCR bit-0 will set the -DTR output to logic 0, enabling
the modem. This pin will be a logic 1 after writing a logic 0
to MCR bit-0, or after a reset. This pin has no effect on the
UART’s transmit or receive operation.
SYMBOL DESCRIPTION
Symbol
Pin
Signal
Pin Description
48
type
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