參數(shù)資料
型號(hào)： FT232BM
廠商： Electronic Theatre Controls, Inc.
英文描述： Generation of FTDI’s Popular USB UART I.C.
中文描述： 在FTDI的流行的USB UART的新一代集成電路
文件頁(yè)數(shù)： 9/24頁(yè)
文件大小： 812K
代理商： FT232BM
DS232B Version 1.1 Future Technology Devices Intl. Ltd. 2002
Page 9 of 24
FT232BM USB UART ( USB - Serial) I.C.
MISCELLANEOUS SIGNAL GROUP
Pin#
Signal
4
RESET#
Type
IN
Description
Can be used by an external device to reset the FT232BM. If not required, tie to
VCC.
Output of the internal Reset Generator. Stays high impedance for ~ 2ms after
VCC > 3.5v and the internal clock starts up, then clamps it’s output to the 3.3v
output of the internal regulator. Taking RESET# low will also force RSTOUT# to
go high impedance. RSTOUT# is NOT affected by a USB Bus Reset.
LED Drive - Pulses Low when Transmitting Data via USB
LED Drive - Pulses Low when Receiving Data via USB
Input to 6MHz Crystal Oscillator Cell. This pin can also be driven by an external
6MHz clock if required. Note : Switching threshold of this pin is VCC/2, so if
driving from an external source, the source must be driving at 5V CMOS level or
a.c. coupled to centre around VCC/2.
Output from 6MHz Crystal Oscillator Cell. XTOUT stops oscillating during USB
suspend, so take care if using this signal to clock external logic.
Puts device in i.c. test mode – must be tied to GND for normal operation.
5
RSTOUT#
OUT
12
11
27
TXLED#
RXLED#
XTIN
O.C.
O.C.
IN
28
XTOUT
OUT
31
TEST
IN
POWER AND GND GROUP
Pin#
Signal
6
3V3OUT
Type
OUT
Description
3.3 volt Output from the integrated L.D.O. regulator This pin should be decoupled
to GND using a 33nF ceramic capacitor in close proximity to the device pin. It’s
prime purpose is to provide the internal 3.3v supply to the USB transceiver cell
and the RSTOUT# pin. A small amount of current ( <= 5mA ) can be drawn from
this pin to power external 3.3v logic if required.
+4.4 volt to +5.25 volt VCC to the device core, LDO and and none-UART
interface pins.
+3.0 volt to +5.25 volt VCC to the UART interface pins 10..12, 14..16 and 18..25.
When interfacing with 3.3v external logic connect VCCIO to the 3.3v supply of
the external logic, otherwise connect to VCC to drive out at 5v CMOS level.
Device– Ground Supply Pins
Device - Analog Power Supply for the internal x8 clock multiplier
Device - Analog Ground Supply for the internal x8 clock multiplier
3,26
VCC
PWR
13
VCCIO
PWR
9,17
30
29
GND
AVCC
AGND
PWR
PWR
PWR
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
FT232BQ 制造商:FTDI 制造商全稱:FTDI 功能描述:USB UART ( USB - Serial) I.C.
FT232BQ-REEL 功能描述:USB 接口集成電路 USB to Serial UART IC QFN-32 RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
FT232HL 制造商:FTDI 制造商全稱:FTDI 功能描述:FT232H Single Channel Hi-Speed USB to Multipurpose UART/FIFO IC
FT232HL-REEL 功能描述:USB 接口集成電路 USB HS to UART/FIFO SPI/JTAG/I2C LQFP-48 RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
FT232HL-TRAY 功能描述:USB 接口集成電路 USB HS to UART/FIFO SPI/JTAG/I2C LQFP-48 RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
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