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P89LPC9402 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - 8-bit Microcontroller - NXP

भाग संख्या P89LPC9402
समारोह 8-bit Microcontroller
मैन्युफैक्चरर्स NXP 
लोगो NXP लोगो 
पूर्व दर्शन
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<?=P89LPC9402?> डेटा पत्रक पीडीएफ

P89LPC9402 pdf
NXP Semiconductors
www.DataSheet4U.com
P89LPC9402
8-bit microcontroller with accelerated two-clock 80C51 core
„ Serial flash In-Circuit Programming (ICP) allows simple production coding with
commercial EPROM programmers. Flash security bits prevent reading of sensitive
application programs.
„ Serial flash In-System Programming (ISP) allows coding while the device is mounted
in the end application.
„ In-Application Programming (IAP) of the flash code memory. This allows changing the
code in a running application.
„ Watchdog timer with separate on-chip oscillator, nominal 400 kHz, calibrated to ±5 %,
requiring no external components. The watchdog prescaler is selectable from
eight values.
„ High-accuracy internal RC oscillator option, with clock doubler option, allows operation
without external oscillator components. The RC oscillator option is selectable and fine
tunable.
„ Switching on the fly among internal RC oscillator, watchdog oscillator, external clock
source provides optimal support of minimal power active mode with fast switching to
maximum performance.
„ Idle and two different power-down reduced power modes. Improved wake-up from
Power-down mode (a LOW interrupt input starts execution). Typical power-down
current is 1 µA (total power-down with voltage comparators disabled).
„ Active-LOW reset. On-chip power-on reset allows operation without external reset
components. A software reset function is also available.
„ Configurable on-chip oscillator with frequency range options selected by user
programmed flash configuration bits. Oscillator options support frequencies from
20 kHz to the maximum operating frequency of 18 MHz.
„ Oscillator fail detect. The watchdog timer has a separate fully on-chip oscillator
allowing it to perform an oscillator fail detect function.
„ Programmable port output configuration options: quasi-bidirectional, open drain,
push-pull, input-only.
„ High current sourcing/sinking (20 mA) on eight I/O pins (P0.3 to P0.7, P1.4, P1.6,
P1.7). All other port pins have high sinking capability (20 mA). A maximum limit is
specified for the entire chip.
„ Port ‘input pattern match’ detect. Port 0 may generate an interrupt when the value of
the pins match or do not match a programmable pattern.
„ Controlled slew rate port outputs to reduce EMI. Outputs have approximately 10 ns
minimum ramp times.
„ Only power and ground connections are required to operate the P89LPC9402 when
internal reset option is selected.
„ Four interrupt priority levels.
„ Eight keypad interrupt inputs, plus two additional external interrupt inputs.
„ Schmitt trigger port inputs.
„ Second data pointer.
„ Emulation support.
„ LED drive capability (20 mA) on all port pins. A maximum limit is specified for the
entire chip.
P89LPC9402_0.01
Preliminary data sheet
Rev. 00.01 — 8 April 2009
© NXP B.V. 2009. All rights reserved.
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