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8251A MBRP300 AOB414 C85FCCBA BB1F3P 74F323PC EG2325A AQV251
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  ?2008 a m p ? ed r f inc 1722 ring w o o d ave, suite 250, san jose, ca 95 131, usa ZB21 datashee t 0 7 / 2 1 / 2 0 0 8 www.ampe drf.co m page 1 of 5 amp?e d rf, inc. (phone ) 408 21 3- 9530 ( fax ) 408 213- 9533 zb-21 zigbee oem m odule features ? full zigbee st anda rd supp o r t ? compl e te rf ready mod u l e ? integrated chi p antenn a ? oki arm7 micropro cesso r up to 33mhz ? 128k or 6 4 k bytes of flash memory ? 16k bytes of sram memo ry ? 2k bytes of eeprom memor y ? 250k bp s rf data rate ? 128-bit encry ption se cu rity ? ran ge up to 30m indoo r, 100m los ? 1655 0 uart ? spi inter f ac e ? i2c interface ? 4 a/d inputs ? 12 gen eral p u r po se i/o, 3 are 20ma cap able ? a t comma nd set ? low p o wer m ode s, <25 u a additional documentation ? quick start g u ide ? zbse rial refe ren c e gui de ? hw de sign g u ide 1 5 m m x 2 7 m m description one of the m o st ca pabl e zigbee mod u le s availabl e, the zb-21 zibb ee oem module i s de sign ed for ma ximum flexibility. the zb-21 module in cl ude s an oki arm7tdmi processo r and a full fun c tion zigbe e rf ra dio. the ar zb-2 1 is a su rfa c e mount pcb module that p r ovide s fully embedd ed, ready to use zigbee wi rele ss te chn o logy . the arm7 pro c e s sor i s available for flexible cu stom develo p m ent, which make s this a true wi rele ss micro- controlle r dev ice. powe r co nsu m ption ha s b een carefu lly optimize d for battery powered appli c ation s , <25 u a in slee p state. cu stom firmware may be e a sily pre - lo ad ed into these highly tuned and teste d module s so that they are ready to install without additi onal procedu res. t y pical w i reless applications ? cabl e rep l ac e m ent / s eria l co mmunicat i ons ? i ndust ria l dia g n o st ics and co nt rol ? wireless pos t r ansact i ons ? t e lemet r y / re mot e sensi ng a nd dat a c a pt ur e ? medic a l dev ice communic a t i o n s ? commerci a l/h o me bu ild in g a u tomatio n ? energ y met e r i n g and co nt rol
amp?e d rf, inc. (phone ) 408 21 3- 9530 ( fax ) 408 213- 9533 hardware specifications recommended operating conditi ons current consumption gene ral conditio n s (vin = 3.3v a nd 25c ) modes avg unit ty pic a l po w e r cons um ptio n t y pical data tra n s mit 45 ma power do wn 25 ua peak current 90 ma selected rf characteristics parameters t y pical unit antenna load 50 ohm sensitiv ity level -92 dbm tx out put po wer -1 dbm absolute m i nimum and m axi mum ratings ratin g min ty pi c a l max unit oper ating temp erature range -20 +25 +70 c suppl y voltage v i n 2.85 3.0 5.0 volts signal pin voltag e - 2.7 - volts rf f r equenc y 2405 - 2480 mhz storage temp era t ure ran ge -55 - +150 c suppl y voltage, vin -0.3 - + 5.0 volts signal pin voltag e -0.3 - 3.6 volts ?2008 a m p ? ed r f inc 1722 ring w o o d ave, suite 250, san jose, ca 95 131, usa kc21 d a t a s h e e t 0 3 / 3 / 2 0 0 8 www.ampe drf.co m page 2 of 5
amp?e d rf, inc. (phone ) 408 21 3- 9530 ( fax ) 408 213- 9533 pin assignment nam e ty p e pin# des c ription alt func tion vin 24 vin gnd 11, 23 gnd u a r t i n terfac e rxd i 8 receive data txd o 6 transmit data cts i 9 clear to send ( a ctive low ) rts o 10 request to send (active low ) spe c i a l func ti on f o r fla s h r o m sy s c l k i 15 input s y stem clo ck (4-33mhz) external clock in put (optional) mode2 i 16 s y stem clock sour ce: internal (h ),e x te rnal (l) boot0 i 20 input (active low) boot rom, high application rom, low mode3 i 22 (default: pull do w n ) reserved for test ing reset i 3 reset input (active low fo r 5 ms); gpio ? ge ne ra l purpos e in put/o utp u t gpio [ 0 ] i/o 1 gene ral pur pose input/ou t put spi; mosi gpio [ 1 ] i/o 2 gene ral purpose input/ou t put spi; sclk gpio [ 2 ] i/o 4 gene ral purpose input/ou t put spi; ssn gpio [ 3 ] i/o 5 gene ral purpose input/ou t put a/d, ain2 gpio [ 4 ] i/o 7 gene ral purpose input/ou t put a/d, ain0 gpio [ 5 ] i/o 12 gene ral purpose input/ou t put 20ma current sin k gpio [ 6 ] i/o 13 gene ral purpose input/ou t put 20ma current sin k gpio [ 7 ] i/o 14 gene ral purpose input/ou t put 20ma current sin k gpio [ 8 ] i/o 17 gene ral purpose input/ou t put gpio [ 9 ] i/o 18 gene ral purpose input/ou t put a/d, ain3 gpio [ 10] i/o 19 gene ral purpose input/ou t put a/d, ain1 gpio [ 11] i/o 21 gene ral pu rpose input/ou t put spi; miso ?2008 a m p ? ed r f inc 1722 ring w o o d ave, suite 250, san jose, ca 95 131, usa kc21 d a t a s h e e t 0 3 / 3 / 2 0 0 8 www.ampe drf.co m page 3 of 5
amp?e d rf, inc. (phone ) 408 21 3- 9530 ( fax ) 408 213- 9533 hardwar e design amp?e d rf modul es sup port uart , spi , and gpi o hard w are int e rf ac es. t h is sect ion de t a ils t y pic a l us ag e mode ls f o r t hese f eat ures. pl ease n o t e t hat t he usag e of t h ese int e rf ac es i s dep en dant u p o n t he f i rm w a re t hat is load ed i n t o t he mod u le , and is be yo nd t he scope of t h is docum ent . notes ? reset pin is internally pulled high. ? boot0 in should be tied low to start from appl ication code rom, high will en able th e boo t rom c ode for oki isfp c h i p progra mmi ng. ? mode2 is inter n ally pulled h i gh , to use the inter n al clock source b y defau l t. ? m o d e 3 is inter n all y pull e d low . th is pin is r e se rved for test ing. ? al l gnd pi ns must be wel l grounde d. ? the area around the module should be free of an y ground plan es, p o wer plan es, trace routings, or m e tal for at l e as t 8 m m from t h e an tenn a in a l l dire ctions . ? traces should n o t be rout ed und erneath th e mod u le. m o dule reflow installation t he z b -21 is a surf ace mount modul e sup p li ed on a 24 pi n, 4-la yer pcb. t he f i nal asse mbl y recomme nde d ref l o w pr of ile is : f o r rohs/ p b-f r ee ap plic at io n s , sn96. 5/ ag3. 0/ cu0. 5 so ld er is recomme nd ed. ? m a xim u m peak tem p er atur e of 230 - 240c ( b elow 250c) . ? m a xim u m r i se and fall slope af ter liquidous o f < 2c/second. ? m a xim u m r i se and fall slope af ter liquidous o f < 3c/second. ? m a xim u m ti m e at liquido us of 4 0 ? 8 0 seconds. gpio interface all gpi o s are capa ble of sink ing a nd so urcin g 3ma of i / o current , e x cept gpi o 5, 6, and 7 , w h ich c an sink 20ma of curre nt . t hese pins are 5v t o ler a nt . uart inte rface t he uar t is compat i b le w i t h t he 165 50 i n d u s t r y st and a rd. f o ur sign a l s a r e p r o v ide d w i t h t he uart int e rf ace. t he t x d and rxd pins ar e use d f o r dat a w h ile t h e ct s and rt s pins are us e d f o r o w co n t rol. f l pcb layo ut guidelines ?2008 a m p ? ed r f inc 1722 ring w o o d ave, suite 250, san jose, ca 95 131, usa kc21 d a t a s h e e t 0 3 / 3 / 2 0 0 8 www.ampe drf.co m page 4 of 5
amp?e d rf, inc. (phone ) 408 21 3- 9530 ( fax ) 408 213- 9533 ordering information part nam e des c ription zb-21 integra t ed c h ip anten n a zb-21l no an tenn a, 50 ohm rf p o rt zb-21ex t supports u. fl external ante nna con n ector picture not available zb-21ext zb-21 zb-21l ?2008 a m p ? ed r f inc 1722 ring w o o d ave, suite 250, san jose, ca 95 131, usa kc21 d a t a s h e e t 0 3 / 3 / 2 0 0 8 www.ampe drf.co m page 5 of 5


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