t81l0010a TM Technology Inc., t81l0010a Datasheet

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t81l0010a

Manufacturer Part Number
t81l0010a
Description
T81l0010a 8-bit Mcu
Manufacturer
TM Technology Inc.
Datasheet
1. Features
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TM Technology Inc. reserves the right
to change products or specifications without notice.
tm
Compatible with MCS-51
Embedded 8K Bytes OTP ROM
256 x 8-bit Internal RAM
15 Programmable I/O Lines for 20-pin
Package
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
SOP20/DIP20 Package
3.3V Operating Voltage
CH
TE
P. 1
2. General Description
The T81L0010A 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, 15 I/O lines, a watchdog
timer, two 16-bit counter/timers, a seven source,
two-priority level nested interrupt structure,
full duplex UART, and an on-chip oscillator and
clock circuits.
In addition, the T81L0010A 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
T81L0010A-AK
T81L0010A-BK
T81L0010A-AD
T81L0010A-BD
Part number
Oscillator type
Crystal
Crystal
RC
RC
Publication Date: JAN. 2006
8-bit MCU
T81L0010A
20-pin SOP
20-pin SOP
20-pin DIP
20-pin DIP
Package
Revision:B
a

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t81l0010a Summary of contents

Page 1

... UART, and an on-chip oscillator and clock circuits. In addition, the T81L0010A 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 ...

Page 2

... TM Technology Inc. reserves the right to change products or specifications without notice. RAM Stack Pointer TMP2 TMP1 ALU PSW Port 3 Latch Port 3 Port 1 Drivers Drivers P3.0 -P3.5, P3.7 P1.0 -P1 OTP ROM Program Address Register Buffer PC Incrementer Program Counter DPTR Port 1 Latch Publication Date: JAN. 2006 T81L0010A Revision:B ...

Page 3

... CH 5. Pin Configuration RST/VPP 1 (RXD) P3.0 2 (TXD) P3.1 3 XOUT 4 XIN 5 6 (INT0) P3.2 7 (INT1) P3.3 8 (T0) P3.4 9 (T1) P3.5 10 GND DIP-20/SOP-20 For Crystal Oscillator T81L0010A-BK/ T81L0010A-BD RST/VPP 1 (RXD) P3.0 2 (TXD) P3.1 3 OSCR 4 STOP 5 6 (INT0) P3.2 7 (INT1) P3.3 8 (T0) P3.4 9 (T1) P3.5 10 GND DIP-20/SOP-20 For RC Oscillator T81L0010A-AK/ T81L0010A-AD TM Technology Inc. reserves the right to change products or specifications without notice ...

Page 4

... General-purpose I/O pin (Default) or Timer 0 external input pin. I/O General-purpose I/O pin (Default) or Timer 1 external input pin. I/O Ground 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 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 I/O General-purpose I/O pin I/O 3.3V power supply T81L0010A Description Publication Date: JAN. 2006 Revision:B ...

Page 5

... =-45uA =-70uA =12mA V =MIN =25mA =40mA IL OL Conditions Min V =3. =3. T81L0010A Units °C °C Min Typ Max Units 3.0 3 0 0.6 2 2.4 1.9 0 0.4 0.6 Typ Max Units 12 24 MHz 12 - MHz 10 - system cycle ...

Page 6

... Bank 1 (08H–0fH) (1,0)— Bank 2 (10H–17H) (1,1)— Bank 3 (18H–17H) TM Technology Inc. reserves the right to change products or specifications without notice. TL2 TH2 TL0 TL1 TH0 TH1 DPL DPH F0 RS1 RS0 P. 6 T81L0010A PCON Publication Date: JAN. 2006 Revision:B ...

Page 7

... Reception is initiated in Mode 0 by the condition RI = ‘0’ and REN = ‘1’. Reception is initiated in the other modes by the incoming start bit if REN = ‘1’. TM Technology Inc. reserves the right to change products or specifications without notice Publication Date: JAN. 2006 T81L0010A Revision:B ...

Page 8

... Mode 2 Baud Rate =2 /64* (Oscillator Frequency) In the T81L0010A, the baud rates in Modes 1 and 3 are determined by the Timer 1 overflow rate. Using Timer 1 to Generate Baud Rates When Timer 1 is used as the baud rate generator, the baud rates in Modes 1 and 3 are determined by the Timer 1 overflow ...

Page 9

... Port1 HDS Port1 I/O high driving set** Bit 4 Bit 3 Bit 2 Reserved Bit 4 Bit 3 Bit 2 Port3.4 Port3.3 Port3.2 Bit 4 Bit 3 Bit 2 Port1.4 Port1.3 Port1 T81L0010A Comments LSB Bit1 Bit 0 LSB Bit1 Bit 0 Port3.1 Port3.0 LSB Bit1 Bit 0 Port1.1 Port1.0 Publication Date: JAN. 2006 Revision:B ...

Page 10

... TM Technology Inc. reserves the right to change products or specifications without notice trel P. 10 T81L0010A Publication Date: JAN. 2006 Revision:B ...

Page 11

... The wdtrel register can be loaded and read any time TM Technology Inc. reserves the right to change products or specifications without notice. es0 et1 ps pt1 T81L0010A LSB ex1 et0 ex0 LSB px1 pt0 px0 LSB Publication Date: JAN. 2006 ...

Page 12

... Tclk: clock period wdt: watchdog timer registers wdts: watchdog timer status flag reset: external reset input rst: internally generated reset signal TM Technology Inc. reserves the right to change products or specifications without notice. rst_ff rst P. 12 Publication Date: JAN. 2006 T81L0010A Revision:B ...

Page 13

... Ext ernal Program M em ory R ead C ycl LLD 0-A 7 from 8-A 15 from D PH Ext ernal ory R ead C ycl T81L0010A IN STR 8-A 15 Publication Date: JAN. 2006 Revision:B ...

Page 14

... 8 Ext er nal ory ycl e S1.........S6 S1.........S6 S1......... Serial Port Mode T81L0010A S1.........S6 S1.........S6 S1.........S6 S1......... Publication Date: JAN. 2006 ...

Page 15

... Serial Port Mode Serial Port Mode Publication Date: JAN. 2006 T81L0010A Stop Bit Stop Bit Stop Bit TB8 Stop Bit TB8 Revision:B ...

Page 16

... TM Technology Inc. reserves the right to change products or specifications without notice MIN. 0.093 0.004 0.496 0.291 0.394 0.016 T81L0010A X L MAX. 0.104 0.012 0.508 0.229 0.419 0.050 8 UNIT: INCH Publication Date: JAN. 2006 Revision:B ...

Page 17

... P. 17 T81L0010A C MAX. 0.175 - 0.135 0.020 0.064 0.011 1.040 0.310 0.225 0.110 0.140 0.375 0.075 UNIT: INCH Publication Date: JAN. 2006 Revision:B ...

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