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參數(shù)資料
| 型號： | MAX3302EETI+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 7/38頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC USB TXRX OTG 28-TQFN-EP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 收發(fā)器 |
| 規(guī)程： | USB 2.0 |
| 電源電壓： | 3 V ~ 4.5 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-WFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 28-TQFN-EP（5x5） |
| 包裝： | 帶卷 (TR) |
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MAX3301E/MAX3302E
USB On-the-Go Transceivers and Charge Pumps
______________________________________________________________________________________
15
supply 5V power and at least 8mA on VBUS. Setting bit
5 of control register 2 turns on the VBUS charge pump.
Operating Modes
The MAX3301E/MAX3302E have four operating modes to
optimize power consumption. Only the I2C interface
remains active in shutdown mode, reducing supply cur-
rent to 1A. The I2C interface, the ID_IN port, and the
session-valid comparator all remain active in interrupt
shutdown mode. RCV asserts low in suspend mode; how-
ever, all other circuitry remains active. Table 1 lists the
active blocks’ power in each of the operating modes.
Applications Information
Data Transfer
Transmitting Data to the USB
The MAX3301E/MAX3302E transceiver features two
modes of transmission: DAT_SE0 or VP_VM (see Table 3).
Set the transmitting mode with dat_se0 (bit 2 in control
register 1, see Table 7). In DAT_SE0 mode with
OE/INT
low, DAT_VP specifies data for the differential transceiv-
er, and SE0_VM forces D+/D- to the single-ended zero
(SE0) state. In VP_VM mode with
OE/INT low, DAT_VP
drives D+, and SE0_VM drives D-. The differential
receiver determines the state of RCV.
Receiving Data from the USB
The MAX3301E/MAX3302E transceiver features two
modes of receiving data: DAT_SE0 or VP_VM (see
Table 4). Set the receiving mode with dat_se0 (bit 2 in
control register 1, see Table 7). In DAT_SE0 mode with
OE/INT high, DAT_VP is the output of the differential
receiver and SE0_VM indicates that D+ and D- are both
logic-low. In VP_VM mode with
OE/INT high, DAT_VP
provides the input logic level of D+ and SE0_VM pro-
vides the input logic level of D-. The differential receiver
determines the state of RCV. VP and VM echo D+ and
D-, respectively.
OE/INT
OE/INT controls the direction of communication. OE/INT
can also be programmed to act as an interrupt output
when in suspend mode. The output-enable portion con-
trols the input or output status of DAT_VP/SE0_VM and
D+/D-. When
OE/INT is a logic 0, DAT_VP and SE0_VM
function as inputs to the D+ and D- outputs in a method
depending on the status of dat_se0 (bit 2 in control reg-
ister 1). When
OE/INT is a logic 1, DAT_VP and SE0_VM
indicate the activity of D+ and D-.
OE/INT functions as an interrupt output when the
MAX3301E/MAX3302E is in suspend mode and
oe_int_en = 1 (bit 5 in control register 1, see Table 7). In
this mode,
OE/INT detects the same interrupts as INT.
Set irq_mode (bit 1 in special-function register 2, see
Tables 15 and 16) to 0 to program
OE/INT as an open-
drain interrupt output. Set irq_mode to 1 to configure
OE/INT as a push-pull interrupt output.
RCV
RCV monitors D+ and D- when receiving data. RCV is a
logic 1 for D+ high and D- low. RCV is a logic 0 for D+
low and D- high. RCV retains its last valid state when D+
and D- are both low (single-ended zero, or SE0). RCV
asserts low in suspend mode. Table 4 shows the state
of RCV.
SPD
Use hardware or software to control the slew rate of the
D+ and D- terminals. The SPD input sets the slew rate of
the MAX3301E/MAX3302E when spd_susp_ctl (bit 1 in
special-function register 1, see Table 14) is 0. Drive SPD
low to select low-speed mode (1.5Mbps). Drive SPD
high to select full-speed mode (12Mbps). Alternatively,
when spd_susp_ctl (bit 1 of special-function register 1)
is 1, software controls the slew rate. The SPD input is
ignored when using software to control the data rate.
The speed bit (bit 0 of control register 1, see Table 7)
sets the slew rate when spd_susp_ctl = 1.
SUS
Use hardware or software to control the suspend mode
of the MAX3301E/MAX3302E. Set spd_susp_ctl (bit 1 of
special-function register 1, see Table 14) to 0 to allow
the SUS input to enable and disable the suspend mode
of the MAX3301E/MAX3302E. Drive SUS low for normal
operation. Drive SUS high to enable suspend mode.
RCV asserts low in suspend mode while all other circuit-
ry remains active.
Alternatively, when the spd_susp_ctl bit (bit 1 of special-
function register 1) is set to 1, software controls the sus-
pend mode. Set the suspend bit (bit 1 of control register
1, see Table 7) to 1 to enable suspend mode. Set the
suspend bit to 0 to resume normal operation. The SUS
input is ignored when using software to control suspend
mode. The MAX3301E/MAX3302E must be in full-speed
mode (SPD = high or speed = 1) to issue a remote
wake-up from the device when in suspend mode.
RESET
The active-low
RESET input allows the MAX3301E/
MAX3302E to be asynchronously reset without cycling
the power supply. Drive
RESET low to reset the internal
registers (see Tables 7–16 for the default power-up
states). Drive
RESET high for normal operation.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX3302EETJ+ | 制造商:Maxim Integrated Products 功能描述:USB ON-THE-GO TRANSCEIVERS AND CHARGE PUMPS - Rail/Tube |
| MAX3302EEWA+ | 制造商:Maxim Integrated Products 功能描述:USB ON-THE-GO TRANSCEIVERS AND CHARGE PUMPS - Rail/Tube |
| MAX3302EEWA+T | 功能描述:USB 接口集成電路 USB On-the-Go Tcvr & Charge Pump 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 |
| MAX3311CUB | 功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3311CUB+ | 功能描述:RS-232接口集成電路 460kbps 1uA Transceiver RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
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