PRELIMINARY
CM2400-05
PACKAGE / PINOUT DIAGRAM
5
6
7
8
5
6
7
8
9
SPND
D-
D-
9
V /V
4
3
2
1
M
MO
4
3
2
10
11
12
VM/VMO
VP/VPO
RCV
D+
TQFN-16
HBCC-16
GND
17
D+
10
V /V
P
PO
N.C.
N.C.
GND
17
N.C.
11
RCV
OE
N.C.
12
1
16 15 14
13
VREG
OE
16 15 14 13
TQFN16 Package
Bottom View
HBCC16 Package
Bottom View
Note: This drawing is not to scale.
PIN DESCRIPTIONS
PINS
NAME
DESCRIPTION
1
OE
Input for Output Enable (Active low). Enables transceiver driver to transmit data on the USB bus. When
OE pin = LOW, driver circuitry is enabled.
2
RCV
Differential receiver output of D+ and D- input data lines. The output state of RCV is preserved and sta-
ble during an SE0 condition.
3
4
VP/VPO
VM/VMO
Bi-directional input output of D+. Configured by OE.
Bi-directional input output of D-. Configured by OE.
5
6
7
SPND
N.C.
Suspend input. Allows the device to enter a low power state while the USB is inactive.
No internal connection to circuitry.
VCC
Supply voltage for digital I/O pins. Voltages supported: 1.65 to 3.3V.
8
9
USB_DET I/O level USB detect output. Logic High indicates that a USB cable is present.
D-
Negative USB data connection.
10
D+
Positive USB data connection. In full-speed connect mode, connect to VPU via a 1.5kΩ resistor. Toler-
ance of this resistor is defined in the USB specification REV 1.1 & 2.0
11
12
13
N.C.
N.C.
No internal connection to circuitry.
No internal connection to circuitry.
VREG
Regulated supply voltage output during USB operation of VBUS. 1µF decoupling capacitor is required.
14
15
16
VBUS
VPU
Supply voltage input. Can be directly connected to USB VBUS.
Pull-up supply voltage. Pin function is controlled by input ENUM.
ENUM
Enumerate, allows software to control connection of the external pull-up via the level translator. If
ENUM = LOW then VPU is floating. If ENUM = HIGH then VPU is internally connected to VREG
.
17
GND
The ground terminal is connected to the exposed diepad (heatsink)
© 2004 California Micro Devices Corp. All rights reserved.
2
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
●
Tel: 408.263.3214
●
Fax: 408.263.7846
●
www.calmicro.com
06/30/04
CALMIRCO [ CALIFORNIA MICRO DEVICES CORP ]
