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ATAR090-D Datasheet

  • ATAR090-D

  • ATAR090-D Advance Information [Updated 4/03. 70 Pages] Low-c...

  • 70頁

  • ETC

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Features
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Extended Temperature Range for Very Hight Temperature up to 125擄C
2-Kbyte ROM, 256
麓
4-bit RAM
12 Bi-directional I/Os
Up to 6 External/Internal Interrupt Sources
Multifunction Timer/Counter with
鈥?IR Remote Control Carrier Generator
鈥?Bi-phase-, Manchester- and Pulse-width Modulator and Demodulator
Programmable System Clock with Prescaler and Five Different Clock Sources
Wide Supply-voltage Range (1.8 V to 6.5 V)
Very Low Sleep Current (< 1 碌A(chǔ))
Synchronous Serial Interface (2-wire, 3-wire)
Watchdog, POR and Brown-out Function
Voltage Monitoring Inclusive Lo_BAT Detection
Flash Controller T48C893 Available (SSO20)
Description
The ATAR090-D is a member of Atmel鈥檚 family of 4-bit single-chip microcontrollers. It
offers the highest integration for IR and RF data communication and remote-control.
The ATAR090-D is suitable for the transmitter side. They contain ROM, RAM, parallel
I/O ports, two 8-bit programmable multifunction timer/counters with modulator and
demodulator function, voltage supervisor, interval timer with watchdog function and a
sophisticated on-chip clock generation with external clock input, integrated RC-,
32-kHz crystal- and 4-MHz crystal-oscillators.
Figure 1.
Block Diagram
V
SS
V
DD
OSC1 OSC2
Low-current
Microcontroller
for Wireless
Communication
ATAR090-D
Brown-out protect
RESET
Voltage monitor
External input
VMI
Crystal
External
RC
oscillators oscillators clock input
Clock management
UTCM
Timer 1
interval- and
watchdog timer
ROM
2 K x 8 bit
RAM
256 x 4 bit
Timer 2
8/12-bit timer
with modulator
SSI
Serial interface
T2I
T2O
SD
SC
Data direction
BP20/NTE
Port 2
BP21
BP22
BP23
MARC4
4-bit CPU core
I/O bus
Data direction +
alternate function
Port 4
Data direction +
interrupt control
Port 5
BP40
BP42
INT3
T2O
SC BP41
BP43
INT3
VMI
SD
T2I
BP50
BP52
INT6
INT1
BP51
BP53
INT1
INT6
Rev. 4701A鈥?BMCU鈥?4/03
1

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