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PDF P89LPC932 Data sheet ( Hoja de datos )
| Número de pieza | P89LPC932 | |
| Descripción | 8-bit microcontroller with accelerated two-clock 80C51 core 8 kB Flash with 512-byte data EEPROM and 768-byte RAM | |
| Fabricantes | NXP Semiconductors | |
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P89LPC932
8-bit microcontroller with accelerated two-clock 80C51 core
8 kB Flash with 512-byte data EEPROM and 768-byte RAM
Rev. 04 — 06 January 2004
Product data
1. General description
The P89LPC932 is a single-chip microcontroller, available in low cost packages,
based on a high performance processor architecture that executes instructions in two
to four clocks, six times the rate of standard 80C51 devices. Many system-level
functions have been incorporated into the P89LPC932 in order to reduce component
count, board space, and system cost.
2. Features
s A high performance 80C51 CPU provides instruction cycle times of 167-333 ns for
all instructions except multiply and divide when executing at 12 MHz. This is
6 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 EMI.
s 2.4 V to 3.6 V VDD operating range. I/O pins are 5 V tolerant (may be pulled up or
driven to 5.5 V).
s 8 kB Flash code memory with 1 kB erasable sectors, 64-byte erasable page size.
s 256-byte RAM data memory. 512-byte auxiliary on-chip RAM.
s 512-byte customer Data EEPROM on chip allows serialization of devices, storage
of set-up parameters, etc.
s Two 16-bit counter/timers. Each timer may be configured to toggle a port output
upon timer overflow or to become a PWM output.
s Real-Time clock that can also be used as a system timer.
s Capture/Compare Unit (CCU) provides PWM, input capture, and output compare
functions.
s Two analog comparators with selectable inputs and reference source.
s Enhanced UART with fractional baud rate generator, break detect, framing error
detection, automatic address detection and versatile interrupt capabilities.
s 400 kHz byte-wide I2C-bus communication port.
s SPI communication port.
s Eight keypad interrupt inputs, plus two additional external interrupt inputs.
s Four interrupt priority levels.
s Watchdog timer with separate on-chip oscillator, requiring no external
components. The watchdog prescaler is selectable from 8 values.
s Active-LOW reset. On-chip power-on reset allows operation without external reset
components. A reset counter and reset glitch suppression circuitry prevent
spurious and incomplete resets. A software reset function is also available.
s Low voltage reset (Brownout detect) allows a graceful system shutdown when
power fails. May optionally be configured as an interrupt.
1 page  
Philips Semiconductors
P89LPC932
8-bit microcontroller with accelerated two-clock 80C51 core
5. Pinning information
5.1 Pinning
handbook, halfpage
ICB/P2.0 1
OCD/P2.1 2
KBI0/CMP2/P0.0 3
OCC/P1.7 4
OCB/P1.6 5
RST/P1.5 6
VSS 7
XTAL1/P3.1 8
CLKOUT/XTAL2/P3.0 9
INT1/P1.4 10
SDA/INT0/P1.3 11
SCL/T0/P1.2 12
MOSI/P2.2 13
MISO/P2.3 14
Fig 2. TSSOP28 pin configuration.
28 P2.7/ICA
27 P2.6/OCA
26 P0.1/CIN2B/KBI1
25 P0.2/CIN2A/KBI2
24 P0.3/CIN1B/KBI3
23 P0.4/CIN1A/KBI4
22 P0.5/CMPREF/KBI5
21 VDD
20 P0.6/CMP1/KBI6
19 P0.7/T1/KBI7
18 P1.0/TXD
17 P1.1/RXD
16 P2.5/SPICLK
15 P2.4/SS
002aaa512
9397 750 12379
Product data
Rev. 04 — 06 January 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
5 of 60
5 Page 
Philips Semiconductors
6. Logic symbol
P89LPC932
8-bit microcontroller with accelerated two-clock 80C51 core
VDD VSS
KBI0
KBI1
KBI2
KBI3
KBI4
KBI5
KBI6
KBI7
CLKOUT
CMP2
CIN2B
CIN2A
CIN1B
CIN1A
CMPREF
CMP1
T1
XTAL2
XTAL1
Fig 5. Logic symbol.
P89LPC932
002aaa511
TxD
RxD
T0
INT0
INT1
RST
OCB
OCC
ICB
OCD
MOSI
MISO
SS
SPICLK
OCA
ICA
SCL
SDA
7. Special function registers
Remark: Special Function Registers (SFRs) accesses are restricted in the following
ways:
• User must not attempt to access any SFR locations not defined.
• Accesses to any defined SFR locations must be strictly for the functions for the
SFRs.
• SFR bits labeled ‘-’, ‘0’ or ‘1’ can only be written and read as follows:
– ‘-’ Unless otherwise specified, must be written with ‘0’, but can return any value
when read (even if it was written with ‘0’). It is a reserved bit and may be used in
future derivatives.
– ‘0’ must be written with ‘0’, and will return a ‘0’ when read.
– ‘1’ must be written with ‘1’, and will return a ‘1’ when read.
9397 750 12379
Product data
Rev. 04 — 06 January 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
11 of 60
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| PDF Descargar | [ Datasheet P89LPC932.PDF ] | |
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