20-101-1202 Rabbit Semiconductor, 20-101-1202 Datasheet - Page 117
![RCM4400W (FCC CERTIFIED)](/photos/14/8/140870/20-101-1202_sml.jpg)
20-101-1202
Manufacturer Part Number
20-101-1202
Description
RCM4400W (FCC CERTIFIED)
Manufacturer
Rabbit Semiconductor
Type
Wi-Fi / 802.11.br
Datasheet
1.20-101-1202.pdf
(126 pages)
Specifications of 20-101-1202
Frequency
2.4GHz
Wireless Frequency
58.98 MHz
Supported Devices
RAM4400W
Tool / Board Applications
Wireless Connectivity-ZigBee, RF, Infrared, USB
Development Tool Type
Hardware / Software - Dev Kit (Dev Tool)
Rohs Compliant
Yes
For Use With/related Products
RCM4400W
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
316-1143
- Current page: 117 of 126
- Download datasheet (2Mb)
C.1 Power Supplies
The RCM4400W requires a regulated 3.3 V DC ±5% power source. The RabbitCore
design presumes that the voltage regulator is on the user board, and that the power is made
available to the RCM4400W board through header J1.
An RCM4400W with no loading at the outputs operating at 58.98 MHz typically draws
80 mA, and may draw up to 450 mA while the Wi-Fi circuit is transmitting or receiving.
C.1.1 Battery-Backup
The RCM4400W does not have a battery, but there is provision for a customer-supplied
battery to back up the data SRAM and keep the internal Rabbit 4000 real-time clock
running.
Header J1, shown in Figure C-1, allows access to the external battery. This header makes
it possible to connect an external 3 V power supply. This allows the SRAM and the inter-
nal Rabbit 4000 real-time clock to retain data with the RCM4400W powered down.
A battery with a nominal voltage of 3 V and a minimum capacity of 165 mA·h is recom-
mended. A lithium battery is strongly recommended because of its nearly constant
nominal voltage over most of its life.
OEM User’s Manual
Appendix C provides information on the current requirements of
the RCM4400W, and includes some background on the chip
select circuit used in power management.
Figure C-1. External Battery Connections
A
PPENDIX
at Header J1
C. P
OWER
S
UPPLY
111
Related parts for 20-101-1202
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![20-101-0575](/photos/6/75/67539/20-101-0575_tmb.jpg)
Part Number:
Description:
COMPUTER SGL-BRD BL2500 29.4MHZ
Manufacturer:
Rabbit Semiconductor
Datasheet:
![20-101-0576](/photos/37/60/376010/bl2500_600_tmb.jpg)
Part Number:
Description:
COMPUTER SGL-BRD BL2500 29.4MHZ
Manufacturer:
Rabbit Semiconductor
Datasheet:
![20-101-0412](/photos/37/60/376043/101-0412_tmb.jpg)
Part Number:
Description:
DISPLAY GRAPHIC 12KEY PROG OP670
Manufacturer:
Rabbit Semiconductor
Datasheet:
![20-101-0411](/photos/37/60/376043/101-0412_tmb.jpg)
Part Number:
Description:
DISPLAY GRAPHIC 12KEY ETH OP6700
Manufacturer:
Rabbit Semiconductor
Datasheet:
![20-101-0457](/photos/37/60/376012/bl20_600_tmb.jpg)
Part Number:
Description:
COMPUTER SINGLE-BOARD BL2030
Manufacturer:
Rabbit Semiconductor
![20-101-0455](/photos/37/60/376012/bl20_600_tmb.jpg)
Part Number:
Description:
COMPUTER SGL-BOARD ETH BL2010
Manufacturer:
Rabbit Semiconductor
![20-101-0497](/photos/37/60/376011/op6800_rgb_tmb.jpg)
Part Number:
Description:
MODULE OP6810 W/O ETH/MEM EXPANS
Manufacturer:
Rabbit Semiconductor
Datasheet:
![20-101-0456](/photos/37/60/376012/bl20_600_tmb.jpg)
Part Number:
Description:
COMPUTER SINGLE-BOARD BL2020
Manufacturer:
Rabbit Semiconductor
![20-101-0591](/photos/37/60/376012/bl20_600_tmb.jpg)
Part Number:
Description:
COMPUTER BL2010 W/FRICTION LOCK
Manufacturer:
Rabbit Semiconductor
![20-101-0594](/photos/37/60/376012/bl20_600_tmb.jpg)
Part Number:
Description:
COMPUTER BL2020 W/FRICTION LOCK
Manufacturer:
Rabbit Semiconductor
![20-101-0602](/photos/37/60/376010/bl2500_600_tmb.jpg)
Part Number:
Description:
COMPUTER SGL-BRD BL2500 44.2MHZ
Manufacturer:
Rabbit Semiconductor
Datasheet:
![20-101-0430](/photos/37/60/376012/bl20_600_tmb.jpg)
Part Number:
Description:
COMPUTER SGL-BOARD FULL BL2000
Manufacturer:
Rabbit Semiconductor
![20-101-0462](/photos/37/60/376013/bl2100_600_tmb.jpg)
Part Number:
Description:
COMPUTER SINGLE-BOARD BL2110
Manufacturer:
Rabbit Semiconductor
![20-101-0891](/photos/37/60/376014/bl2600_600_tmb.jpg)
Part Number:
Description:
COMPUTER SGL-BRD 29.4MHZ BL2610
Manufacturer:
Rabbit Semiconductor
Datasheet:
![20-101-0654](/photos/37/60/376011/op6800_rgb_tmb.jpg)
Part Number:
Description:
INTERFACE OP6800 512K FLASH&SRAM
Manufacturer:
Rabbit Semiconductor
Datasheet: