Objective Data Sheet
CALIFORNIA MICRO DEVICES
CM2400-04HB
Universal Serial Bus Transceiver with Level Translator
Features
•
Complies with USB Specification Rev 1.1 & 2.0.
•
Supports Full (12Mbit/s) speed and Low speed
(1.5Mbits/s).
•
Integrated 5V to 3.3V regulator.
•
Used as a USB device or host transceiver.
•
VBUS disconnection indication through VP, VM.
•
Two single-ended receivers with hysteresis.
•
Stable RCV output during SE0 condition.
•
Low power operation.
•
Supports 1.65 to 3.3V I/O voltage levels.
•
Full industrial operating range –40 to 85
°C.
•
Available in small HBCC16 Package.
Pin Diagram
Applications
•
•
•
•
Mobile Phones.
Digital still cameras.
PDA (Personal Digital Assistant).
IA (Information Appliance).
Product Description
The CM2400-04HB Universal Serial Bus (USB)
transceiver is fully compliant with the USB
specification Rev 1.1 and 2.0. It supports a speed of
12Mbits/s (Full Speed) and 1.5Mbits/s (Low Speed).
An internal level shifter allows interface to
Application specific IC’s (ASIC’s) and Programmable
logic devices (PLD’s) running at core voltages of
1.65 to 3.3V.
An internal 5-3.3V regulator is used to power the
CM2400-04HB USB transceiver via the USB supply
V
BUS
.
Single and differential input modes are selectable by
a mode input pin.
This device is ideal for portable electronic devices
such as mobile phones, digital still cameras, PDA
(Personal Digital Assistants) and IR (Information
Appliances).
Functional Diagram
STANDARD PART ORDERING INFORMATION
Package
Pads
16
Style
HBCC16
Tape & Reel
Ordering Information
Part Marking
03/01/04
215 Topaz Street, Milpitas, California 95035
Tel: (408) 263-3214
Fax: (408) 263-7846
www.calmicro.com
1
Objective Data Sheet
CALIFORNIA MICRO DEVICES
Pin Functions
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Symbol
OE#
RCV
VP
VM
SPND
MODE
V
CC
SPEED
D-
D+
VPO/VO
VMO/FSEO
V
REG
V
BUS
V
PU
ENUM
GND
Description
Input for Output enable (Active low) Enables transceiver driver to transmit data on the USB bus.
When OE# pin = LOW driver circuitry is enabled.
Differential receiver output of D+ and D- input data lines. The output state of RCV is preserved
and stable during an SE0 condition.
Single-ended D+ receiver output for detection of a single ended zero, error conditions, or speed of
connected device.
Single-ended D- receiver output for detection of a single ended zero, error conditions, or speed of
connected device.
Suspend input. Allows the device to enter a low power state while the USB is inactive.
Mode input. Selects between differential (VPO, VMO) and single-ended mode (VO, FSEO).
Supply voltage for digital I/O pins. Voltages supported: 1.65 to 3.3V.
Speed Input. If SPEED is logic ‘1’, selects full speed. If SPEED is logic ‘0’, selects low speed.
Negative USB data connection. Low speed connect mode, connect V
PU
via a 1.5kΩ resistor.
Tolerance of this resistor is defined in the USB specification REV 1.1 & 2.0
Positive USB data connection. Full speed connect mode, connect V
PU
via a 1.5kΩ resistor.
Tolerance of this resistor is defined in the USB specification REV 1.1 & 2.0
Driver data input.
Driver data input.
Regulated supply voltage output during USB operation of VBUS. 1uF decoupling capacitor is
required. Regulator bypass option connected to VBUS
Supply voltage input. Can be directly connected to USB VBUS.
Pull-up supply voltage. Pin function is controlled by input ENUM.
Enumerate, allows software to control connection of the external pull-up via the level translator. If
ENUM = LOW then V
PU
is floating. If ENUM = HIGH then V
PU
is internally connected to V
REG
.
The ground terminal is connected to the exposed diepad.
CM2400-04HB
Functional Description:
The CM2400-04HB USB Transceiver supports 3
different power supply configurations, which can be
configured dynamically.
Table 1
details the various
configurations. In
Normal Mode
the internal regulator
produces 3.3V from V
BUS
to power the internal drivers
and receivers associated with the USB protocol.
In
Disable
and
Sharing Mode,
all input/output pins
follow the states defined in
Table 2.
Detailed in Table 4.1 and 4.2 are the operating modes
selected when MODE is set to HIGH and LOW. When
MODE = HIGH, the differential input data interface mode
is selected. The 2 driver inputs function as VMO and
VPO. When MODE = LOW, the single-ended input data
interface mode is selected. The 2 driver inputs function
as FSE0 and VO.
Table 5 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.
The CM2400-04HB USB transceiver includes an
enumeration pin (ENUM) which internally connects V
PU
to V
REG
Table 3
lists the functions of the modes associated with
suspend and OE# pins. When Suspend is low and OE#
is high, signal levels on D+ and D- are determined by
other USB devices and pull-up/down resistors. In
Suspend Mode
(SPND = HIGH) the differential receiver
is inactive and output RCV is always LOW. Out of
suspend signaling is detected via the single-ended
receivers VP and VM. During suspend and while the
output is still enabled (OE# = LOW), D+ and D- lines are
driven to their intended states. This is permitted because
driving during suspend is used to signal remote wake-up
by driving a ‘K’ signal for a period of 1 to 15ms.
© 2000 California Micro Devices Corp. All rights reserved
03/01/04
215 Topaz Street, Milpitas, California 95035
Tel: (408) 263-3214
Fax: (408) 263-7846
www.calmicro.com
2
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
