- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄16527 > XR20V2172L64-0B-EB (Exar Corporation)EVAL BOARD FOR XR20V2170 64QFN PDF資料下載
參數(shù)資料
| 型號： | XR20V2172L64-0B-EB |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 34/51頁 |
| 文件大?。?/td> | 0K |
| 描述： | EVAL BOARD FOR XR20V2170 64QFN |
| 標準包裝： | 1 |
| 系列： | * |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁當前第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁
XR20V2172
4
TWO CHANNEL I2C/SPI UART WITH 64-BYTE FIFO AND RS232 TRANSCEIVER
REV. 1.0.2
DTRA
DTRB
41
12
O
UART Data-Terminal-Ready. See MCR[0].
DSRA
DSRB
40
14
I
UART Data-Set-Ready. This input has an internal pull-down resistor and
can be left unconnected when not used. See MSR[5].
CDA
CDB
60
62
I
UART Carrier-Detect. This input has an internal pull-down resistor and
can be left unconnected when not used. See MSR[7].
RIA
RIB
58
13
I
UART Ring-Indicator. This input has an internal pull-down resistor and
can be left unconnected when not used. See MSR[6].
Ancillary signals (CMOS/TTL Voltage Levels)
XTAL1
15
I
Crystal or external clock input. This pin is not 5V tolerant.
XTAL2
17
O
Crystal or buffered clock output.
ACP
24
I
Autosleep for Charge Pump (active HIGH). When this pin is HIGH, the
charge pump is shut off if the V2172 is already in partial sleep mode, i.e.
the crystal oscillator is stopped. This pin is 5V tolerant.
FAST
19
I
When FAST is HIGH, the maximum serial data rate is 1 Mbps.
When FAST is LOW, the maximum serial data rate is 250 Kbps. This pin
is 5V tolerant.
R_EN
20
I
When the supply voltage is < 3.6V, connect R_EN to VCC.
When the supply voltage is > 3.6V, connect R_EN to GND. This pin is 5V
tolerant.
RXB_SEL
6
I
When RXB_SEL is HIGH, RXB is the receive data input.
When RXB_SEL is LOW, RXDB is the receive data input. This pin is 5V
tolerant.
C2+
C2-
44
43
-
Charge pump capacitors. As shown in Figure 1, a 0.1 uF capacitor
should be placed between these 2 pins.
C1+
C1-
51
50
-
Charge pump capacitors. As shown in Figure 1, a 0.1 uF capacitor
should be placed between these 2 pins.
C3
56
-
When the supply voltage is 3.3 V, C3 should be connected to VCC.
When the supply voltage is 5 V, C3 should be connected to a 1 uF capac-
itor to GND.
VREF-
25
Pwr
-5.0V generated by the charge pump.
VREF+
53
Pwr
+5.0V generated by the charge pump.
GND
1, 16, 21, 35
Pwr
Power supply common, ground.
VCC
45, 54
Pwr
3.3 to 5.5V power supply.
Pin Description
NAME
64-QFN
PIN #
TYPE
DESCRIPTION
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UPM1E181MPD6TD | CAP ALUM 180UF 25V 20% RADIAL |
| AQ1051N8S-T | INDUCTOR 1.8NH 760MA 0402 SMD |
| UPS2G3R3MPD1TD | CAP ALUM 3.3UF 400V 20% RADIAL |
| XR20V2172L64-0A-EB | EVAL BOARD FOR XR20V2170 64QFN |
| UPJ1C331MPD6TD | CAP ALUM 330UF 16V 20% RADIAL |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR-210 | 制造商:EXAR 制造商全稱:EXAR 功能描述:FSK MODULATOR / DEMODULATOR |
| XR-2100CJ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MODEM |
| XR-2100CP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MODEM |
| XR-2103 | 制造商:EXAR 制造商全稱:EXAR 功能描述:FSK Modem Filter |
| XR-2103A | 制造商:EXAR 制造商全稱:EXAR 功能描述:FSK Modem Filter |
發(fā)布緊急采購，3分鐘左右您將得到回復。