参数资料
型号: XR16C864CQ-F
厂商: Exar Corporation
文件页数: 48/51页
文件大小: 0K
描述: IC UART FIFO 128B QUAD 100QFP
标准包装: 66
特点: *
通道数: 4,QUART
FIFO's: 128 字节
规程: RS232,RS485
电源电压: 2.97 V ~ 5.5 V
带自动流量控制功能:
带IrDA 编码器/解码器:
带故障启动位检测功能:
带调制解调器控制功能:
带CMOS:
安装类型: 表面贴装
封装/外壳: 100-BQFP
供应商设备封装: 100-QFP(14x20)
包装: 托盘
其它名称: 1016-1449
1016-1449-ND
1016-1651
XR16C864CQ-F-ND
XR16C864
6
2.97V TO 5.5V QUAD UART WITH 128-BYTE FIFO
REV. 2.2.0
CTSA#
CTSB#
CTSC#
CTSD#
8
22
59
73
I
UART channels A-D Clear-to-Send (active low) or general purpose input. It can be used
for auto CTS flow control, see EFR[7], and IER[7]. Also see
Figure 10. These inputs
should be connected to VCC when not used.
DTRA#
DTRB#
DTRC#
DTRD#
9
21
60
72
O
UART channels A-D Data-Terminal-Ready (active low) or general purpose output. If
these outputs are not used, leave them unconnected.
DSRA#
DSRB#
DSRC#
DSRD#
7
23
58
74
I
UART channels A-D Data-Set-Ready (active low) or general purpose input. This input
should be connected to VCC when not used.
CDA#
CDB#
CDC#
CDD#
99
32
49
83
I
UART channels A-D Carrier-Detect (active low) or general purpose input. This input
should be connected to VCC when not used.
RIA#
RIB#
RIC#
RID#
98
33
48
84
I
UART channels A-D Ring-Indicator (active low) or general purpose input. This input
should be connected to VCC when not used.
OP1A#
OP1B#
OP1C#
OP1D#
3
28
53
78
O
General purpose output or RS-485 direction control signal. RS-485 direction control can
be selected via FCTR bit-3. SEE”AUTO RS485 HALF-DUPLEX CONTROL” ON
PAGE 20. If these outputs are unused, leave them unconnected.
OP2A#
OP2B#
OP2C#
OP2D#
2
29
52
79
O
General purpose output. If these outputs are unused, leave them unconnected.
ANCILLARY SIGNALS
XTAL1
40
I
Crystal or external clock input. This input is not 5V tolerant.
XTAL2
41
O
Crystal or buffered clock output.
BCLKA
BCLKB
BCLKC
BCLKD
1
30
51
80
O
Baud Rate Generator Output. The baud rate generator clock output is internally con-
nected to the RCLK input. This pin provides the 16X clock of the selected data rate from
the baud rate generator.
16/68#
36
I
Intel or Motorola Bus Select (input with internal pull-up).
When 16/68# pin is at logic 1, 16 or Intel Mode, the device will operate in the Intel bus
type of interface.
When 16/68# pin is at logic 0, 68 or Motorola mode, the device will operate in the Motor-
ola bus type of interface.
Pin Description
NAME
100-QFP
PIN #
TYPE
DESCRIPTION
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