T81L0010B

tm ! ! ! ! ! ! ! ! ! ! ! ! ! ! TE CH Preliminary T81L0010B 8-bit MCU with Embedded EEPROM 1. Features Compatible with MCS-51 Embedded 8K Bytes OTP ROM Embedded 1k bits EEPROM 256 x 8-bit Internal RAM 15 Programmable I/O Lines 2 16-bit Timer/Counter & 1 16-bit Timer 2 External Interrupt Input Programmable Serial UART Interface Low Power Idle & Power-down Modes Watch-dog Timer On-chip Crystal & RC Oscillator (Selected by Bonding Option) Internal Power-on Reset and External Reset Supported 32-pin LQFP Package 3.3V Operating Voltage 2. General Description The T81L0010B is 8-bit microcontroller designed and developed with low power and high speed CMOS technology. It contains a 8K bytes OTP ROM, a 256 × 8 RAM, 1k bits EEPROM, 15 I/O lines, a watchdog timer, two 16-bit counter/timers, a seven source, two-priority level nested interrupt structure, a full duplex UART, and an on-chip oscillator and clock circuits. In addition, the T81L0010B has two selectable modes of power reduction-idle mode and power-down mode. The idle mode freezes the CPU while allowing the RAM, timers, serial port, and interrupt system to continue functioning. The power-down mode saves the RAM contents but freezes the oscillator, causing all other chip functions to be inoperative. 3. Order Information Part number T81L0010B-AL T81L0010B-BL Oscillator type RC Crystal Package 32-pin LQFP 32-pin LQFP TM Technology Inc. reserves the right to change products or specifications without notice. P. 1 Publication Date: JAN. 2006 Revision:A tm TE CH Preliminary T81L0010B 4. Block Diagram RAM Addr. Register RAM OTP ROM EEPROM EEPROM interface B Register ACC Stack Pointer TMP2 W DT TMP1 Program Address Register Buffer ALU PC Incrementer Interrupt, Serial port, and Timer Block PSW Program Counter DPTR RST Timing & Control Instruction Register Port 3 Latch Port 1 Latch OSC Port 3 Drivers P ort 1 Drivers XOUT XIN P3.0 -P3.5, P3.7 P1.0 -P1.7 TM Technology Inc. reserves the right to change products or specifications without notice. P. 2 Publication Date: JAN. 2006 Revision:A tm TE CH Preliminary T81L0010B 5. Pin Configuration (R X D )P 3.0 (T X D )P 3.1 R ST /V PP O SC R VCC P1.7 P1.6 32 31 30 29 28 27 26 25 NC NC NC NC NC NC STO P (IN T 0 )P 3 .2 P1.5 24 23 22 21 20 19 18 1 2 3 4 5 6 7 8 9 P 1 .4 NC P 1 .3 NC P 1 .2 P 1 .1 P 1 .0 P 3 .7 17 10 11 12 13 14 15 16 (IN T 1)P3.3 (T 0)P3.4 (T 1)P3.5 LQFP-32 For RC Oscillator T81L0010B-AL (R X D )P 3.0 (T X D )P 3.1 R ST /V PP VCC P1.7 P1.6 32 31 30 29 28 27 26 25 NC NC NC NC NC XOUT X IN (IN T 0 )P 3 .2 P1.5 24 23 22 21 20 19 18 NC GND NC NC NC NC 1 2 3 4 5 6 7 8 9 P 1 .4 NC P 1 .3 NC P 1 .2 P 1 .1 P 1 .0 P 3 .7 17 10 11 12 13 14 15 16 (IN T 1)P3.3 (T 0)P3.4 (T 1)P3.5 LQFP-32 For Crystal Oscillator T81L0010B-BL TM Technology Inc. reserves the right to change products or specifications without notice. GND NC NC NC NC P. 3 Publication Date: JAN. 2006 Revision:A tm Number (32-Pin) 1 2 3 4 5 6(AL) 6(BL) 7(AL) 7(BL) 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32(AL) 32(BL) TE CH Preliminary T81L0010B 6. Pin Description Name NC NC NC NC NC NC XOUT STOP XIN P3.2/(INT0) NC P3.3/(INT1) NC P3.4/(T0) NC P3.5/(T1) NC GND P3.7 P1.0 P1.1 P1.2 NC P1.3 NC P1.4 P1.5 P1.6 P1.7 VCC RST/VPP P3.0/(RXD) P3.1/(TXD) OSCR NC Type No connect No connect No connect No connect No connect No connect I Crystal oscillator output terminal. O Stop RC oscillator network. O Crystal oscillator input terminal. I/O General-purpose I/O pin (Default) or External interrupt source 0. No connect I/O General-purpose I/O pin (Default) or External interrupt source 1. No connect I/O General-purpose I/O pin (Default) or Timer 0 external input pin. No connect I/O General-purpose I/O pin (Default) or Timer 1 external input pin. No connect Ground I/O General-purpose I/O pin I/O General-purpose I/O pin I/O General-purpose I/O pin I/O General-purpose I/O pin No connect I/O General-purpose I/O pin No connect I/O General-purpose I/O pin I/O General-purpose I/O pin I/O General-purpose I/O pin I/O General-purpose I/O pin 3.3V power supply. Reset signal input or programming supply voltage input. I I/O General-purpose I/O pin (Default) or Serial input port. I/O General-purpose I/O pin (Default) or Serial output port. I RC oscillator external resister connect pin. No connect Description TM Technology Inc. reserves the right to change products or specifications without notice. P. 4 Publication Date: JAN. 2006 Revision:A tm TE CH Preliminary T81L0010B 7. Temperature Limit Ratings Parameter Operating temperature Range Storage Temperature Range Rating -40 to +85 -55 to +125 Units °C °C 8. Electrical Characteristics D.C Characteristics Symbol VCC ICC IPD VIH VIL VOH Conditions 25°C No load, Vcc=2.5V, 4MHz Operating Current No load, Vcc=3.3V, 12MHz Power Down Current Vcc=3.3V Vout >=VVOH(MIN.) Hi-Level input voltage Vout =VVOH(MIN.) Low-Level input voltage Vout