P89LPC954 डेटा पत्रक PDF( Datasheet डाउनलोड )

डेटा पत्रक - (P89LPC952 / P89LPC954) 8-bit microcontroller - NXP Semiconductors

भाग संख्या P89LPC954
समारोह (P89LPC952 / P89LPC954) 8-bit microcontroller
मैन्युफैक्चरर्स NXP Semiconductors 
लोगो NXP Semiconductors लोगो 
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P89LPC954 pdf
NXP Semiconductors
8-bit microcontroller with 10-bit ADC
2.2 Additional features
I A high performance 80C51 CPU provides instruction cycle times of 111 ns to 222 ns
for all instructions except multiply and divide when executing at 18 MHz. This is six
times the performance of the standard 80C51 running at the same clock frequency. A
lower clock frequency for the same performance results in power savings and reduced
I Serial flash In-Circuit Programming (ICP) allows simple production coding with
commercial EPROM programmers. Flash security bits prevent reading of sensitive
application programs.
I Serial flash In-System Programming (ISP) allows coding while the device is mounted
in the end application.
I In-Application Programming (IAP) of the flash code memory. This allows changing the
code in a running application.
I Low voltage (brownout) detect allows a graceful system shutdown when power fails.
May optionally be configured as an interrupt.
I 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).
I On-chip power-on reset allows operation without external reset components. A
software reset function is also available.
I Programmable external reset pin (P1.5) configuration options: open drain bidirectional
reset input/output, reset input with pull-up, push-pull reset output, input-only port. A
reset counter and reset glitch suppression circuitry prevent spurious and incomplete
I Only power and ground connections are required to operate the P89LPC952/954
when internal reset option is selected.
I 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.
I Oscillator fail detect. The watchdog timer has a separate fully on-chip oscillator
allowing it to perform an oscillator fail detect function.
I Programmable port output configuration options: quasi-bidirectional, open drain,
push-pull, input-only.
I 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.
I Controlled slew rate port outputs to reduce EMI. Outputs have approximately 10 ns
minimum ramp times.
I Four interrupt priority levels.
I Eight keypad interrupt inputs, plus two additional external interrupt inputs.
I Schmitt trigger port inputs.
I Second data pointer.
I Extended temperature range.
I Emulation support.
Product data sheet
Rev. 04 — 24 July 2008
© NXP B.V. 2008. All rights reserved.
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भाग संख्याविवरणविनिर्माण
P89LPC952(P89LPC952 / P89LPC954) 8-bit microcontrollerNXP Semiconductors
NXP Semiconductors
P89LPC954(P89LPC952 / P89LPC954) 8-bit microcontrollerNXP Semiconductors
NXP Semiconductors

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