REV. 1.0.3 2.25V TO 3.6V QUAD UART WITH 16-BYTE FIFO CDA# CDB# CDC# CDD# - 64 18 31 49 9 27 43 61 19 42 59 2 I UART channels A-" />
參數(shù)資料
型號： XR16V554IV-0A-EVB
廠商： Exar Corporation
文件頁數(shù)： 41/43頁
文件大?。?/td> 0K
描述： EVAL BOARD FOR XR16V554 64LQFP
標(biāo)準(zhǔn)包裝： 1
系列： *
XR16V554/554D
7
REV. 1.0.3
2.25V TO 3.6V QUAD UART WITH 16-BYTE FIFO
CDA#
CDB#
CDC#
CDD#
-
64
18
31
49
9
27
43
61
19
42
59
2
I
UART channels A-D Carrier-Detect (active low) or gen-
eral purpose input. This input should be connected to
VCC when not used. This input has no effect on the
UART.
RIA#
RIB#
RIC#
RID#
-
63
19
30
50
8
28
42
62
18
43
58
3
I
UART channels A-D Ring-Indicator (active low) or gen-
eral purpose input. This input should be connected to
VCC when not used. This input has no effect on the
UART.
ANCILLARY SIGNALS
XTAL1
18
25
35
50
I
Crystal or external clock input. Caution: this input is not
5V tolerant.
XTAL2
19
26
36
51
O
Crystal or buffered clock output.
16/68#
14
-
31
-
I
Intel or Motorola Bus Select (input with internal pull-up).
When 16/68# pin is HIGH, 16 or Intel Mode, the device
will operate in the Intel bus type of interface.
When 16/68# pin is LOW, 68 or Motorola mode, the
device will operate in the Motorola bus type of interface.
Motorola bus interface is not available on the 64 pin
package.
RESET
(RESET#)
20
27
37
53
I
When 16/68# pin is HIGH for Intel bus interface, this
input becomes the Reset pin (active high). In this case,
a 40 ns minimum HIGH pulse on this pin will reset the
internal registers and all outputs. The UART transmitter
output will be held HIGH, the receiver input will be
ignored and outputs are reset during reset period
(Table 13). When 16/68# pin is at LOW for Motorola
bus interface, this input becomes Reset# pin (active
low). This pin functions similarly, but instead of a HIGH
pulse, a 40 ns minimum LOW pulse will reset the inter-
nal registers and outputs.
Motorola bus interface is not available on the 64 pin
package.
VCC
2, 24, 37 4, 21, 35,
52
13, 30,
47, 64
5, 25, 45,
65
Pwr 2.25V to 3.6V power supply. All inputs, except XTAL1,
are 5V tolerant.
GND
21, 47
14, 28,
45, 61
6, 23, 40,
57
16, 36,
56, 76
Pwr Power supply common, ground.
GND
Center
Pad
N/A
Pwr The center pad on the backside of the QFN package is
metallic and should be connected to GND on the PCB.
The thermal pad size on the PCB should be the approx-
imate size of this center pad and should be solder mask
defined. The solder mask opening should be at least
0.0025" inwards from the edge of the PCB thermal pad.
Pin Description
NAME
48-QFN
PIN #
64-LQFP
PIN #
68-PLCC
PIN#
80-LQFP
PIN #
TYPE
DESCRIPTION
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參數(shù)描述
XR16V554IV80 制造商:EXAR 制造商全稱:EXAR 功能描述:2.25V TO 3.6V QUAD UART WITH 16-BYTE FIFO
XR16V554IV80-0A-EB 功能描述:界面開發(fā)工具 Supports V554 80 ld LQFP,ISA Interface RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
XR16V554IV80-F 功能描述:UART 接口集成電路 2.25V-3.6V 16B FIFO temp -45 to 85C;UART 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
XR16V554IV80TR-F 功能描述:UART 接口集成電路 XR16V554IV80TR-F 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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