BL22P02 SPEC 8-bit OTP MCU V 1 . 0 ( 2010-4-23) Shanghai Belling Co., Ltd. 上海贝岭股份有限公司 Shanghai Belling Co., Ltd. BL22P02 SPEC 1．General Description BL22P02 is an 8-bit low power microcontroller with mass applications in small household appliances. 2．Features z z z z z z z z z z z z z z 8-bit CISC core（compatible with Motorola HC05） 17 CMOS Bi-directional I/O pins and 1 CMOS input pin 8-bit real time clock/counter with 8-bit programmable prescaler 7 keyboard interrupts 2 external interrupts Selectable oscillator options: ¾ Crystal/resonator: 432K-8MHz ¾ Crystal/resonator: 32K ¾ Internal RC oscillator: 2MHz@5V, 4MHz@5V, 6MHz@5V ¾ External RC oscillator Low power（Standby current less than 1uA@5V） Watchdog Timer (WDT) with its own on-chip RC oscillator 64*8 bits RAM（including stack） 2K*8 bits OTP ROM Serial program circuit OTP data encrypted Operation Voltage: ¾ 2.0-5.5V@（432K-4M） ¾ 2.7-5.5V@（432K-8M） Package：DIP20, SOP20, DIP18, SOP18, DIP16, SOP16, DIP14, SOP14, DIP8, SOP8 TEL：86-21-64850700 WEB: www.belling.com.cn Page 2 of 5 上海贝岭股份有限公司 BL22P02 SPEC Shanghai Belling Co., Ltd. 3．Pin Configuration Pin Name SOP20/ DIP20 SOP18/ DIP18 SOP16/ DIP16 SOP14/ DIP14 SOP8/ DIP8 Pin Type P13 1 2 2 - - I/O P14 2 - - 8 - I/O P15 3 - - - - I/O P16/ TCC 4 3 3 9 1 I/O Description Bi-directional I/O port; Programmable pull-up resistors; Bi-directional I/O port; Programmable pull-up resistors; Clock input to clock/counter; P17/ RST/ VPP 5 4 4 10 2 I Input port; External reset input; High voltage power supply as OTP programming ； VSS 6 5 5 11 3 P Ground P00/ INT0 7 6 6 12 4 I/O P01/ INT1 8 7 - 13 - I/O P02 9 8 7 - - I/O P03 10 9 8 14 - I/O P04 11 10 9 1 - I/O P05 12 11 10 - - I/O P06 13 12 - 2 - I/O P07 14 13 11 3 5 I/O VDD 15 14 12 4 6 P P21/ OSCO 16 15 13 5 7 Power supply I/O Bi-directional I/O port; Oscillator crystal input; External clock source input; 17 16 14 6 8 I/O P10 18 17 15 - - I/O P11 19 18 1 7 - I/O P12 20 1 - - - I/O WEB: www.belling.com.cn Bi-directional I/O port; Programmable pull-up resistors; Programmable pull-down resistors; Bi-directional I/O port; Oscillator crystal output; System clock output; P20/ OSCI TEL：86-21-64850700 Bi-directional I/O port; Programmable pull-up resistors; Programmable pull-down resistors; External interrupt input; Bi-directional I/O port; Programmable pull-up resistors; Page 3 of 5 上海贝岭股份有限公司 Shanghai Belling Co., Ltd. BL22P02 SPEC 4．Block Diagram TEL：86-21-64850700 WEB: www.belling.com.cn Page 4 of 5 上海贝岭股份有限公司 BL22P02 SPEC Shanghai Belling Co., Ltd. 5． Electrical Characteristics 5.1 Absolute Maximum Ratings Parameter Symbol Value Unit Operating Voltage VDD -0.3~6.0 V Input Voltage VIN Vss-0.3～Vdd+0.3 V Operating Ambient Temperature TA -40～85 ℃ Storage Temperature Tstg -65～150 ℃ 5.2 DC Electrical Characteristics（VDD=5.0V，GND=0V,T=25℃, unless otherwise specified） Parameter Symbol PIN Operating Voltage VDD Condition Min. 432K-4M 2.0 5.5 432K-8M 2.7 5.5 Vleak P0 P1 P2 VIN=VDD VIN=VSS Voh P0 P1 P2 Iload=-6mA Vol P0 P1 P2 Iload=10mA Input High Voltage Vih P0 P1 P2 Input Low Voltage Vil P0 P1 P2 LVR Voltage VLVR Dynamic Current IDD Input Leakage Current Output High Voltage Output Low Voltage Standby Current ISTB VDD VDD Typ. Max. ±1 VDD-0.7 Unit V uA V 0.6 V 0.7VDD VDD V 0 0.3VDD V VDD=5V 3.6 VDD=3V 2.1 V VDD=3V，FOSC=32K 100 uA VDD=5V，FOSC=4M 3 MA STOP Mode WDT off，LVR off 1 uA STOP Mode WDT on，LVR off 10 uA STOP Mode WDT off，LVR on 10 uA Pull-up resistor RP P0 P1 25 Kohm Pull-down resistor RD P0 25 Kohm TEL：86-21-64850700 WEB: www.belling.com.cn Page 5 of 5