參數(shù)資料
型號(hào): CM2400-01HB
廠商: California Micro Devices Corporation
英文描述: Universal Serial Bus Transceiver with Level Translator
中文描述: 通用串行總線收發(fā)器電平轉(zhuǎn)換
文件頁數(shù): 11/14頁
文件大小: 271K
代理商: CM2400-01HB
2003 California Micro Devices Corp. All rights reserved.
10/01/03
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
L
Tel: 408.263.3214
L
Fax: 408.263.7846
L
www.calmicro.com
11
CM2400-01
Functional Description (cont’d)
Detailed in
Table 4
and
Table 5
are the operating
modes selected when MODE is set to LOW and HIGH.
When MODE = HIGH, the differential input data inter-
face mode is selected. The two driver inputs function
as V
MO
and V
PO
. When MODE = LOW, the single-
ended input data interface mode is selected. The two
driver inputs function as FSE0 and V
O
.
Table 4: Operating Mode (OE = L)
Table 5: Operating Mode (OE = L)
Table 6
details the receiving function when OE is HIGH
(driver disabled). RCV denotes the signal level on the
output RCV just before an SE0 state occurs. This level
is stable during the SE0 period.
Table 6: Receiving Function (SPND = L)
Note 1: Denotes RCV is stable in last state before
SE0 condition.
Detection of a V
BUS
voltage is accomplished via an
internal Comparator with hysteresis. The output from
this Comparator is fed via the level translator to ensure
compatibility with processor core voltages and output
to pin USB_DET. When V
BUS
is over 4.1V, USB_DET
is HIGH. When V
BUS
is under 3.6V, USB_DET is LOW.
The CM2400-01HB USB transceiver includes an enu-
meration pin (ENUM) which internally connects V
PU
to
V
REG
when enabled. This allows a processor running
at a core voltage different than 3.3V to switch the pull-
up resistor in and out without the need for external cir-
cuitry.
MODE
V
O
FSE0
Result
L
(single-ended)
L
L
Logic ‘0’
L
H
SE0
H
L
Logic ‘1’
H
H
SE0
MODE
V
O
FSE0
Result
H
(differential)
L
L
SE0
L
H
Logic ‘0’
H
L
Logic ‘1’
H
H
Undefined
D+/D-
RCV
V
P
V
M
Differential Logic ’0’
L
L
H
Differential Logic ’1’
H
H
L
SE0
RCV*
L
L
相關(guān)PDF資料
PDF描述
CM2400-02 Universal Serial Bus Transceiver with Level Translator
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CM2400-02HA Universal Serial Bus Transceiver with Level Translator
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CM2400-02TR Universal Serial Bus Transceiver with Level Translator
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CM2400-02 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:Universal Serial Bus Transceiver with Level Translator
CM2400-02HA 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:Universal Serial Bus Transceiver with Level Translator
CM2400-02HB 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:Universal Serial Bus Transceiver with Level Translator
CM2400-02TR 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:Universal Serial Bus Transceiver with Level Translator
CM2400-02TS 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:Universal Serial Bus Transceiver with Level Translator