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| 8MASKBL3502S 8 MASK BL3502S 1 BL3502S MASK 8 MCU VCD 2 BL2220 MULRORROLASR CPU8 ROM 2K byte RAM 48 byte 400K4MHz I/O 2 8 38KHz LVR 2.0V0.2V 8 LVR 2.05.5V 070 < 1uA @ VDD = 3V < 1mA @ VDD = 3V SOP-24SOP-20 3 OSC1 OSC2 GND PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7 OUT38K 1 2 3 4 24 23 22 21 PA7 PA6 VDD NC PA5 PA4 PA3 PA2 PA1 PA0 RSTB NC 6 7 8 9 10 11 12 SOP-24 5 20 19 18 17 16 15 14 13 http://www.belling.com.cn -1Total 5 Pages 8/24/2006 Wrote by dipeng 8MASKBL3502S 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 OSC1 OSC2 GND PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7 OUT38K NC RSTB PA0 PA1 PA2 PA3 PA4 PA5 NC VDD PA6 PA7 input output source i/o i/o i/o i/o i/o i/o i/o i/o output input i/o i/o i/o i/o i/o i/o source i/o i/o main oscillator input main oscillator output source ground io port B 0 io port B 1 io port B 2 io port B 3 io port B 4 io port B 5 io port B 6 io port B 7 coding signal output Not connected reset io port A 0 io port A 1 io port A 2 io port A 3 io port A 4 io port A 5 Not connected source input io port A 6 io port A 7 http://www.belling.com.cn -2Total 5 Pages 8/24/2006 Wrote by dipeng 8MASKBL3502S 5 BL3502S MCU BL2220 MULRORROLASR U SER M ASK RO M - 2K BYT ES SR AM - 48 BYTES 7 0 KEYBO ARD IN T E R R U P T D D R AC C U M ULATO R 7 0 A P O R T A 8 PA0~PA7 IN D E X R E G IS T E R 12 0 S T A C K P O IN T E R 15 0 D D R P O R T B 8 PB0~PB7 PRO GRAM COUNTER 7 R ST RESET B U S -C L O C K C O N D IT IO N C O D E R E G IS T E R 0 B OSC1 OSC2 O S C -I 7 -B IT P R E S C A LE R 8 -B IT C O U N T E R T IM E R C O N T R O L 3 8K m o d u la te O U T38K BL3502S 6 6.1 6.2 Vdd=3.0V10%Vss=0.0V Voh PA7~PA0 PB7~PB0 Iload=0.8mA Vdd-0.5 V Vdd VIN TA -0.35.5 Vss-0.3Vdd+0.3 070 V V http://www.belling.com.cn -3Total 5 Pages 8/24/2006 Wrote by dipeng 8MASKBL3502S OUT38K PA7~PA0 PB7~PB0 OUT38K PA7~PA0 PB7~PB0 OUT38K PA7~PA0 PB7~PB0 OUT38K PA7~PA0 PB7~PB0 RSTB PA7~PA0 PB7~PB0 RSTB VDD VDD PA7~PA0 455KHz 25 Vol Iload=0.8mA 0.1 0.5 V Ioh Voh2.3V 3 5 mA Iol Vol1.0V 3 5 mA Vih 0.7Vdd Vdd V Vil Iddd Idds Rp 0 0.5 0.2 50 0.2Vdd 1 1 70 V mA uA Kohm 6.3 Vdd=3.0V10%Vss=0.0V Fosc1 Toxov 400K 4M 100 Hz ms 7 http://www.belling.com.cn -4Total 5 Pages 8/24/2006 Wrote by dipeng 8MASKBL3502S 8 http://www.belling.com.cn -5Total 5 Pages 8/24/2006 Wrote by dipeng |
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