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TE
CH
T81L0010A
8-bit MCU
1. Features
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
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, a
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
Part number
T81L0010A-AK
T81L0010A-BK
T81L0010A-AD
T81L0010A-BD
Oscillator type
RC
Crystal
RC
Crystal
Package
20-pin DIP
20-pin DIP
20-pin SOP
20-pin SOP
TM Technology Inc. reserves the right
to change products or specifications without notice.
P. 1
Publication Date: JAN. 2006
Revision:B