Amp’ed RF, Inc. (phone) 408 213-9530 (fax) 408 213-9533 ZB-21 ZigBee OEM Module Features • Full ZigBee standard support • Complete RF ready module • Integrated chip antenna • OKI ARM7 microprocessor up to 33MHz • 128K or 64K bytes of flash memory • 16K bytes of SRAM memory • 2K bytes of EEPROM memory • 250K bps RF data rate • 128-bit encryption security • Range up to 30m Indoor, 100m LOS • 16550 UART • SPI interface • I2C interface • 4 A/D inputs • 12 general purpose I/O, 3 are 20mA capable • AT command set • Low power modes, <25uA Additional Documentation • Quick Start Guide • zbSerial Reference Guide • HW Design Guide ©2008 Amp’ed RF Inc 15mm x 27mm Description One of the most capable ZigBee modules available, the ZB-21 ZibBee OEM Module is designed for maximum flexibility. The ZB-21 module includes an OKI ARM7TDMI processor and a full function ZigBee RF radio. The AR ZB-21 is a surface mount PCB module that provides fully embedded, ready to use ZigBee wireless technology. The ARM7 processor is available for flexible custom development, which makes this a true wireless microcontroller device. Power consumption has been carefully optimized for battery powered applications, <25uA in sleep state. Custom firmware may be easily pre-loaded into these highly tuned and tested modules so that they are ready to install without additional procedures. Typical Wireless Applications ¾ ¾ ¾ ¾ ¾ ¾ ¾ Cable replacement/Serial communications Industrial diagnostics and control Wireless POS transactions Telemetry/Remote sensing and data capture Medical device communications Commercial/Home building automation Energy metering and control 1722 Ringwood Ave, Suite 250, San Jose, CA 95131, USA www.ampedrf.com ZB21 Datasheet 07/21/2008 Page 1 of 5 Amp’ed RF, Inc. (phone) 408 213-9530 (fax) 408 213-9533 Hardware Specifications Recommended Operating Conditions Current Consumption General Conditions (VIN = 3.3V and 25°C) Modes Avg Unit Typical data transmit 45 mA Power down 25 uA Peak current 90 mA Typical Power Consumption Selected RF Characteristics Parameters Typical Unit Antenna load 50 ohm Sensitivity level -92 dBm Tx output power -1 dBm Absolute Minimum and Maximum Ratings Rating Min Typical Max Unit Operating Temperature Range -20 +25 +70 °C Supply Voltage VIN 2.85 3.0 5.0 Volts Signal Pin Voltage - 2.7 - Volts 2405 - 2480 MHz Storage temperature range -55 - +150 °C Supply voltage, VIN -0.3 - + 5.0 Volts Signal Pin Voltage -0.3 - 3.6 Volts RF Frequency ©2008 Amp’ed RF Inc 1722 Ringwood Ave, Suite 250, San Jose, CA 95131, USA www.ampedrf.com KC21 Datasheet 03/3/2008 Page 2 of 5 Amp’ed RF, Inc. (phone) 408 213-9530 (fax) 408 213-9533 Pin Assignment Name Type VIN GND Pin# Description 24 11, 23 VIN GND 8 6 9 10 Receive data Transmit data Clear to send (active low) Request to send (active low) Alt Function UART Interface RXD TXD CTS RTS I O I O Special Function for Flash ROM SYSCLK I 15 Input System Clock (4-33MHz) MODE2 I 16 System Clock Source: Internal (H),External (L) BOOT0 I 20 Input (active low) MODE3 RESET I I 22 3 (Default: Pull Down) Reset input (active low for 5 ms); External Clock Input (optional) Boot ROM, high Application ROM, low Reserved for testing GPIO – General Purpose Input/Output GPIO [0] I/O 1 General Purpose Input/Output SPI; MOSI GPIO [1] I/O 2 General Purpose Input/Output SPI; SCLK GPIO [2] I/O 4 General Purpose Input/Output SPI; SSN GPIO [3] I/O 5 General Purpose Input/Output A/D, AIN2 GPIO [4] I/O 7 General Purpose Input/Output A/D, AIN0 GPIO [5] I/O 12 General Purpose Input/Output 20mA current sink GPIO [6] I/O 13 General Purpose Input/Output 20mA current sink GPIO [7] I/O 14 General Purpose Input/Output 20mA current sink GPIO [8] I/O 17 General Purpose Input/Output GPIO [9] I/O 18 General Purpose Input/Output A/D, AIN3 GPIO [10] I/O 19 General Purpose Input/Output A/D, AIN1 GPIO [11] I/O 21 General Purpose Input/Output SPI; MISO ©2008 Amp’ed RF Inc 1722 Ringwood Ave, Suite 250, San Jose, CA 95131, USA www.ampedrf.com KC21 Datasheet 03/3/2008 Page 3 of 5 Amp’ed RF, Inc. (phone) 408 213-9530 (fax) 408 213-9533 Hardware Design UART Interface Amp’ed RF modules support UART, SPI, and GPIO hardware interfaces. This section details typical usage models for these features. Please note that the usage of these interfaces is dependant upon the firmware that is loaded into the module, and is beyond the scope of this document. The UART is compatible with the 16550 industry standard. Four signals are provided with the UART interface. The TXD and RXD pins are used for data while the CTS and RTS pins are used for flow control. Notes RESET pin is internally pulled high. BOOT0 in should be tied low to start from application code ROM, high will enable the boot ROM code for Oki ISFP chip programming. MODE2 is internally pulled high, to use the internal clock source by default. MODE3 is internally pulled low. This pin is reserved for testing. All GND pins must be well grounded. The area around the module should be free of any ground planes, power planes, trace routings, or metal for at least 8 mm from the antenna in all directions. Traces should not be routed underneath the module. PCB Layout Guidelines Module Reflow Installation The ZB-21 is a surface mount module supplied on a 24 pin, 4-layer PCB. The final assembly recommended reflow profile is: For RoHS/Pb-free applications, Sn96.5/Ag3.0/Cu0.5 solder is recommended. Maximum peak temperature of 230° - 240°C (below 250°C). Maximum rise and fall slope after liquidous of < 2°C/second. Maximum rise and fall slope after liquidous of < 3°C/second. Maximum time at liquidous of 40 – 80 seconds. GPIO Interface All GPIOs are capable of sinking and sourcing 3mA of I/O current, except GPIO5,6,and 7, which can sink 20mA of current. These pins are 5V tolerant. ©2008 Amp’ed RF Inc 1722 Ringwood Ave, Suite 250, San Jose, CA 95131, USA www.ampedrf.com KC21 Datasheet 03/3/2008 Page 4 of 5 Amp’ed RF, Inc. (phone) 408 213-9530 (fax) 408 213-9533 Ordering Information Part Name Description ZB-21 Integrated chip antenna ZB-21L No antenna, 50 ohm RF port ZB-21Ext Supports U.FL external antenna connector Picture Not Available ZB-21 ©2008 Amp’ed RF Inc ZB-21L 1722 Ringwood Ave, Suite 250, San Jose, CA 95131, USA www.ampedrf.com ZB-21Ext KC21 Datasheet 03/3/2008 Page 5 of 5