收藏本站
XR16M890
REV. 1.0.0
PIN DESCRIPTIONS
Pin Description
UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS
N AME
QFN-32
P IN #
QFN-40 TQFP-48
PIN# PIN#
T YPE
D ESCRIPTION
DATA BUS INTERFACE - Intel/Motorola
16/68#
32
1
1
I
Intel or Motorola Bus Select. This pin selects the 16 or 68 mode
when VLIO_EN is a logic 0. In the VLIO mode (VLIO_EN is a logic
1), this pin becomes the SLEEP/PWRDN# pin in the QFN-32 pack-
age.
When 16/68# pin is at logic 1, 16 or Intel Mode, the device will oper-
ate 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 Motorola bus type of interface. This pin does not have
an internal pull-up or pull-down resistor.
A2
A1
A0
29
30
31
38
39
40
46
47
48
I
Address lines [2:0]. These 3 address lines select the internal regis-
ters in UART channel during a data bus transaction.
In the VLIO bus mode (details on next page):
■
■
■
■
A2 becomes ENIR#
A1 becomes ENRS485# in the QFN-32 package
A1 is an unused input on the TQFP-48 and QFN-40
packages and should be connected to GND
A0 becomes LLA#
D7
D6
D5
D4
D3
D2
D1
D0
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
Data bus lines [7:0] (bidirectional).
In the VLIO bus mode, D7:D0 becomes AD7:AD0.
When 16/68# pin is at logic 1, the Intel bus interface is selected and
this input becomes read strobe (active low). The falling edge insti-
gates an internal read cycle and retrieves the data byte from an
internal register pointed by the address lines [A2:A0], puts the data
byte on the data bus to allow the host processor to read it on the ris-
ing edge.
When 16/68# pin is at logic 0, the Motorola bus interface is selected
and this input should be connected to VCC.
IOW#
14
17
11
I
When 16/68# pin is at logic 1, it selects Intel bus interface and this
(R/W#)
input becomes 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 address lines.
When 16/68# pin is at logic 0, the Motorola bus interface is selected
and this input becomes read (logic 1) and write (logic 0) signal.
CS#
15
18
12
I
This input is chip select (active low) to enable the device.
5
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