t81l0003a TM Technology Inc., t81l0003a Datasheet

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t81l0003a

Manufacturer Part Number
t81l0003a
Description
Reduced I/o 8-bit Mcu
Manufacturer
TM Technology Inc.
Datasheet
tm
MCU
FEATURES
! Compatible with MCS-51 Products
! 128 x8 bit RAM
! Embedded 8k X 8 bit data OTP ROM
! 13 bi-direction I/O Lines.
! System clock: Typ. 12MHz @ 2.5 ~ 5.5V.
! 2 External Interrupt Input
! Programmable Serial UART Channel.
! Watch Dog Timer
! One 16-bit Timer/Counter (T0) & Two 16-bit Timer (T1, T2)
! On-chip selectable crystal driving PAD or RC oscillator.
! Low Power and wake-able power down mode
! One Buzzer Driving Pad.P1.0 (driving capability up to 40mA).
! SOP18/DIP18 Package.
! Typical 3.3V Operating Voltage.
Description
The T81L0003A is a low voltage and low cost and reduced I/O 8-bit high performance 8051-like
MCU. The T81L0003A provides 13 bi-direction I/Os for end user programming with other device and
3 timers (but only one counter) for more applications and low cost.
Part Number Example
Part No.
T81L0003A-AK
T81L0003A-AD
T81L0003A-BK
T81L0003A-BD
TM Technology, Inc. reserves the right
to change products or specifications without notice.
CH
TE
Pkg.
DIP 18 pin
SOP 18 pin
DIP 18 pin
SOP 18 pin
RC oscillation
RC oscillation
Crystal oscillation
Crystal oscillation
Description
P. 1
Reduced I/O 8-bit MCU
Publication Date: SEP. 2004
T81L0003A
Revision: C

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t81l0003a Summary of contents

Page 1

... Typical 3.3V Operating Voltage. Description The T81L0003A is a low voltage and low cost and reduced I/O 8-bit high performance 8051-like MCU. The T81L0003A provides 13 bi-direction I/Os for end user programming with other device and 3 timers (but only one counter) for more applications and low cost. ...

Page 2

... P1.0 -P1.7 Port 1 Drivers Port 1 RAM Latch Stack Pointer TMP2 TMP1 WDT ALU Interrupt, Serial port, PSW and Timer Block Port 3 Latch Port 3 Drivers P3.0 -P3 T81L0003A OTP ROM Program Address Register Buffer PC Incrementer Program Counter DPTR Publication Date: SEP. 2004 Revision: C ...

Page 3

... TM Technology, Inc. reserves the right to change products or specifications without notice. P1.7 P1.6 VDD P1.5 RST P1.4 P3.1/TXD P1.3 OSCR P1.2 STOP P1.1 VSS P1.0/BUZ P3.0/RXD P3.2/INT0 P3.3/INT1 P3.4/T0 T81L0003A-AK, AD P1.7 P1.6 VDD P1.5 RST P1.4 P3.1/TXD P1.3 XOUT P1.2 XIN P1.1 VSS P1.0/BUZ P3.0/RXD P3.2/INT0 P3.3/INT1 P3.4/T0 T81L0003A-BK, T81L0003A ...

Page 4

... General Purpose I/O and serial receive I/O General Purpose I/O and interrupt1 input I/O General Purpose I/O and Timer0 I/O General Purpose I/O and interrupt0 input I/O General Purpose I/O and Buzzer driving pad I/O General Purpose I/O I/O General Purpose I/O I/O General Purpose I/O I/O General Purpose I/O I/O General Purpose I/O I/O General Purpose I T81L0003A Description Publication Date: SEP. 2004 Revision: C ...

Page 5

... Input to the inverting oscillator amplifier and input to the internal clock operating circuit in BK,BD parts. XOUT Output from the inverting oscillator amplifier in BK,BD part. TM Technology, Inc. reserves the right to change products or specifications without notice. ) because of the internal pull-ups. Port 1 also IL ) because of the pullups Publication Date: SEP. 2004 T81L0003A Revision: C ...

Page 6

... The B register is used during multiply and divide operations. For other instructions it can be treated as another scratch pad register. TM Technology, Inc. reserves the right to change products or specifications without notice. RCAP2L RCAP2H TL2 TLO TL1 TH0 DPL DPH P. 6 T81L0003A TH2 TH1 WDTREL PCON Publication Date: SEP. 2004 Revision: C ...

Page 7

... SFR (i.e., if the external state of a pin is low, the corresponding port SFR bit will contain a ‘0’ high, the bit will contain a ‘1’). TM Technology, Inc. reserves the right to change products or specifications without notice. F0 RS1 RS0 P. 7 T81L0003A LSB Publication Date: SEP. 2004 Revision: C ...

Page 8

... Or, for example, the parity bit (P, in the PSW) could be moved into TB8. On receive, the 9th data bit goes into RB8 in TM Technology, Inc. reserves the right to change products or specifications without notice GF1 P. 8 T81L0003A LSB GF0 PD - Publication Date: SEP. 2004 Revision: C ...

Page 9

... Frequency) In the 80C52, the baud rates in Modes 1 and 3 are determined by the Timer 1 overflow rate. SCON MSB SM0 SM1 TM Technology, Inc. reserves the right to change products or specifications without notice. SM2 REN TB8 P. 9 T81L0003A LSB RB8 TI RI Publication Date: SEP. 2004 Revision: C ...

Page 10

... TM Technology, Inc. reserves the right to change products or specifications without notice. Description Baud Rate shift register OSC 8-bit UART variable 9-bit UART UART f OSC / OSC /32 9-bit UART variable RCLK TCLK EXEN2 P. 10 T81L0003A LSB TR2 C/T2 CP/RL2 Publication Date: SEP. 2004 Revision: C ...

Page 11

... ecei ve Shi Technology, Inc. reserves the right to change products or specifications without notice Seri al Port M ode T81L0003A Publication Date: SEP. 2004 Revision: C ...

Page 12

... Seri al Port M ode Seri al Port M ode T81L0003A Publication Date: SEP. 2004 ...

Page 13

... Technology, Inc. reserves the right to change products or specifications without notice Seri al Port M ode T81L0003A Publication Date: SEP. 2004 ...

Page 14

... Procedure: load wdtrel value # # # # set “wdt” set “swdt” instruction cycles. TM Technology, Inc. reserves the right to change products or specifications without notice. Figure Watchdog block diagram P. 14 T81L0003A Publication Date: SEP. 2004 Revision: C ...

Page 15

... Set by hardware when the watchdog timer was started. TM Technology, Inc. reserves the right to change products or specifications without notice. et2 es0 et1 pt2 ps pt1 P. 15 T81L0003A LSB ex1 et0 ex0 LSB px1 pt0 px0 Publication Date: SEP. 2004 ...

Page 16

... A high on reset pin or watchdog reset request for two clock cycles while the oscillator is running resets the device. Diagram b) Watchdog timer reset TM Technology, Inc. reserves the right to change products or specifications without notice 7FFBH 7FFCH Figure Watchdog reset timing P. 16 T81L0003A LSB 0000H Publication Date: SEP. 2004 Revision: C ...

Page 17

... RESET pulse width Twdt Watchdog timer TM Technology, Inc. reserves the right to change products or specifications without notice. Condition Min 45 Crystal Type RC Type(R=47KOhm) 11.4 o Ta=25 C Clock frequency=12MHz 16128 P. 17 T81L0003A Typ Max Unit MHz 12 12.6 MHz 9*fclk 2*fclk 2096000 us Publication Date: SEP. 2004 ...

Page 18

... =3.3V =4mA =3.3V =12mA =3.3V =19mA =3. =VDD or GND I V =3.3V T81L0003A Min. Typ. Max. 2.5 3.3 5.5 2.0 V +0 -0.3 0.3*V 0.3 2.9 2.4 1.9 0.2 0.4 0.6 0.2 0.4 0.6 TBD. 0.1 1 Publication Date: SEP. 2004 Unit Revision: C ...

Page 19

... SYMBOLS Technology, Inc. reserves the right to change products or specifications without notice. 0.050typ 0.004max MIN. 0.093 0.004 0.447 0.291 0.394 0.016 T81L0003A X L MAX. 0.104 0.012 0.463 0.229 0.419 0.050 8 UNIT: INCH Publication Date: SEP. 2004 Revision: C ...

Page 20

... B +- 0.020 R40 0.100 Typ. A 0.900 TM Technology, Inc. reserves the right to change products or specifications without notice 0.018 +- 0.012 Typ. 0.060 +- 0.015 Typ 0.075 0.065 0.055 P. 20 T81L0003A 0.310 0.090 UNIT: INCH Publication Date: SEP. 2004 Revision: C ...

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