t81l0003b TM Technology Inc., t81l0003b Datasheet

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t81l0003b

Manufacturer Part Number
t81l0003b
Description
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
13 Programmable I/O Lines for 18-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
SOP18/DIP18 Package
3.3V Operating Voltage
CH
TE
P. 1
2. General Description
designed and developed with low power and high
speed CMOS technology. It contains a 8K bytes
OTP ROM, a 256 × 8 RAM, 13 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.
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.
The T81L0003B is 8-bit microcontroller
In addition, the T81L0003B has two selectable
Publication Date: NOV. 2005
8-bit MCU
T81L0003B
Revision:A

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t81l0003b Summary of contents

Page 1

... UART, and an on-chip oscillator and clock circuits. In addition, the T81L0003B 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. OTP RAM ROM Stack Pointer TMP2 TMP1 ALU PSW Port 3 Latch Port 3 Drivers Port 1 Drivers P3.0 -P3 T81L0003B Program Address Register Buffer PC Incrementer Program Counter DPTR Port 1 Latch P1.0 -P1.7 Publication Date: NOV. 2005 Revision:A ...

Page 3

... CH 4. 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 GND 9 DIP-18/SOP-18 For Crystal Oscillator T81L0003B-BK/ T81L0003B-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 GND 9 DIP-18/SOP-18 For RC Oscillator T81L0003B-AK/ T81L0003B-AD TM Technology Inc. reserves the right to change products or specifications without notice ...

Page 4

... General-purpose I/O pin (Default) or External interrupt source 0. I/O General-purpose I/O pin (Default) or External interrupt source 1. I/O General-purpose I/O pin (Default) or Timer 0 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 3.3V power supply T81L0003B Description Publication Date: NOV. 2005 Revision:A ...

Page 5

... =25mA =40mA =4mA V =MIN =12mA =20mA IL OL Conditions Min V =3. =3. T81L0003B Units °C °C Min Typ Max Units 3.0 3 0.6 2 2.4 1.9 0 0.4 0.6 0.2 0.4 0.6 Typ Max Units 12 24 MHz 12 - MHz 10 - system cycle ...

Page 6

... Bank 0 (00H–07H) (0,1)— 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 F0 RS1 RS0 P. 6 T81L0003B Publication Date: NOV. 2005 Revision:A ...

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: NOV. 2005 T81L0003B Revision:A ...

Page 8

... Enable or disable External Interrupt 0. TM Technology Inc. reserves the right to change products or specifications without notice. REN TB8 RB8 Baud Rate OSC Variable UART F / /32 OSC OSC Variable ES ET1 EX1 P. 8 T81L0003B Mode 1 reception, if LSB TI RI LSB ET0 EX0 Publication Date: NOV. 2005 Revision:A ...

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 T81L0003B Comments LSB Bit1 Bit 0 LSB Bit1 Bit 0 Port3.1 Port3.0 LSB Bit1 Bit 0 Port1.1 Port1.0 Publication Date: NOV. 2005 Revision:A ...

Page 10

... TM Technology Inc. reserves the right to change products or specifications without notice Publication Date: NOV. 2005 T81L0003B Revision:A ...

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 T81L0003B LSB ex1 et0 ex0 LSB px1 pt0 px0 LSB Publication Date: NOV ...

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 Publication Date: NOV. 2005 T81L0003B Revision:A ...

Page 13

... Shift D0 D1 RXD TXD TM Technology Inc. reserves the right to change products or specifications without notice. S1.........S S1.........S S1......... Serial Port Mode T81L0003B S1.........S S1.........S S1.........S S1......... Publication Date: NOV. 2005 Revision:A ...

Page 14

... RI TM Technology Inc. reserves the right to change products or specifications without notice Serial Port Mode Serial Port Mode 2 & T81L0003B Publication Date: NOV. 2005 Stop Bit ...

Page 15

... 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 T81L0003B X L MAX. 0.104 0.012 0.463 0.229 0.419 0.050 8 UNIT: INCH Publication Date: NOV. 2005 Revision:A ...

Page 16

... 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. 16 T81L0003B 0.310 0.090 UNIT: INCH Publication Date: NOV. 2005 Revision:A ...

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