TE
CH
tm
Preliminary T81L0010B
TM Technology Inc. reserves the right
P. 1
Publication Date: JAN. 2006
to change products or specifications without notice. Revision:A
8-bit MCU with Embedded EEPROM
1. Features
!
Compatible with MCS-51
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Embedded 8K Bytes OTP ROM
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Embedded 1k bits EEPROM
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256 x 8-bit Internal RAM
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15 Programmable I/O Lines
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2 16-bit Timer/Counter & 1 16-bit Timer
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2 External Interrupt Input
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Programmable Serial UART Interface
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Low Power Idle & Power-down Modes
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Watch-dog Timer
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On-chip Crystal & RC Oscillator (Selected
by Bonding Option)
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Internal Power-on Reset and External Reset
Supported
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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
Oscillator type
T81L0010B-AL
RC
T81L0010B-BL
Crystal
Package
32-pin LQFP
32-pin LQFP