收藏本站
XR16M890
UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS
Pin Description
REV. 1.0.0
N AME
QFN-32
P IN #
QFN-40 TQFP-48
PIN# PIN#
T YPE
D ESCRIPTION
INT
10
12
15
O
When 16/68# pin is at logic 1 for Intel bus interface, this output
(IRQ#)
(OD) become the active high device interrupt output. The output state is
defined by the user through the software setting of MCR[3]. INT is
set to the active mode when MCR[3] is set to a logic 1. INT is set to
the three state mode when MCR[3] is set to a logic 0. See MCR[3].
When 16/68# pin is at logic 0 for Motorola bus interface, this output
becomes the active low device interrupt output (open drain). An
external pull-up resistor is required for proper operation.
RESET
9
10
13
I
When 16/68# pin is at logic 1 for Intel bus interface, this input
(RESET#)
becomes RESET (active high). When 16/68# pin is at logic 0 for
Motorola bus interface, this input becomes RESET# (active low).
A 40 ns minimum active pulse on this pin will reset the internal reg-
isters and all outputs of the UART. The UART transmitter output will
be held at logic 1, the receiver input will be ignored and outputs are
reset during reset period (see UART Reset Conditions).
DATA BUS INTERFACE - VLIO
VLIO_EN
28
37
45
I
VLIO Bus Enable. When VLIO_EN pin is at logic 0, the bus interface
is selected by the 16/68# pin. When VLIO_EN pin is at logic 1, the
VLIO bus interface is enabled and the 16/68# pin has no effect.
AD7
AD6
AD5
AD4
AD3
AD2
AD1
AD0
IOR#
8
7
6
5
4
3
2
1
13
9
8
7
6
5
4
3
2
16
9
8
7
6
5
4
3
2
10
I/O
I
Multiplexed Address/Data lines [7:0]. The register address is
latched on the rising edge of the LLA#. After the LLA# signal goes
high, the UART enters the data phase where the data is placed on
these lines.
Read strobe (active low). The falling edge instigates an internal
read cycle and retrieves the data byte from an internal register
pointed by the latched address. The UART places the data byte on
the data bus to allow the host processor to read it on the rising
edge.
IOW#
14
17
11
I
Write strobe (active low). The falling edge instigates the internal
write cycle and the rising edge transfers the data byte on the data
bus to an internal register pointed by the latched address.
CS#
15
18
12
I
Chip select (active low). The falling edge starts the access to the
UART. A read or write is determined by the IOR# and IOW# sig-
nals.
LLA#
31
40
48
I
Latch Lower Address (active low). The register address is latched
on the rising edge of the LLA# signal. After the LLA# goes high, the
device enters the data phase where the data is placed on the
AD[7:0] lines.
In the Intel/Motorola mode, this pin becomes A0.
6
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
XR18W750/753-0B-EB EVAL BOARD FOR XR18W750/753
XRP2526EVB BOARD EVAL POWER SWITCH XRP2526
XRP2528EVB BOARD EVAL POWER SWITCH XRP2528
XT800SM GAS TRIGGER TUBE 800V SMD
YMCRPR8C25 REF PLATFORM MOTOR CTRL R8C/25
ZB3251 INLINE FUSE HOLDER PLASTIC BODY
ZB3260 INLINE FUSE HOLDER BAKELITE BODY
ZB3270 PANEL MOUNT FUSE HOLDER
相关代理商/技术参数
XR16M890IL32-F 功能描述:UART 接口集成电路 1-Ch 8 Bit/VLIO UART w/Lvl Shftrs & 4GPIO 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
XR16M890IL32TR 制造商:EXAR 制造商全称:EXAR 功能描述:UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS
XR16M890IL32TR-F 功能描述:UART 接口集成电路 1-Ch 8 Bit/VLIO UART w/Lvl Shftrs & 4GPIO 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
XR16M890IL40 制造商:EXAR 制造商全称:EXAR 功能描述:UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS
XR16M890IL40-0C-EB 功能描述:UART 接口集成电路 EVAL F/M890 QFN40 MOT, INTEL, VLIO INT 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
XR16M890IL40-F 功能描述:UART 接口集成电路 1-Ch 8 Bit/VLIO UART w/Lvl Shftrs & 8GPIO 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
XR16M890IL40TR 制造商:EXAR 制造商全称:EXAR 功能描述:UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS
XR16M890IL40TR-F 功能描述:UART 接口集成电路 1-Ch 8 Bit/VLIO UART w/Lvl Shftrs & 8GPIO 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