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부품번호 P89LPC9301 기능
기능 8-bit Microcontroller
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P89LPC9301 데이터시트, 핀배열, 회로
www.DataSheet4U.com
P89LPC9301/931A1
8-bit microcontroller with accelerated two-clock 80C51 core
4 kB/8 kB 3 V byte-erasable flash
Rev. 01 — 9 April 2009
Preliminary data sheet
1. General description
The P89LPC9301/931A1 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 P89LPC9301/931A1 in order to reduce component count,
board space, and system cost.
2. Features
2.1 Principal features
I 4 kB/8 kB byte-erasable flash code memory organized into 1 kB sectors and 64-byte
pages. Single-byte erasing allows any byte(s) to be used as non-volatile data storage.
I 256-byte RAM data memory.
I Two analog comparators with selectable inputs and reference source.
I Two 16-bit counter/timers (each may be configured to toggle a port output upon timer
overflow or to become a PWM output).
I A 23-bit system timer that can also be used as real-time clock consisting of a 7-bit
prescaler and a programmable and readable 16-bit timer.
I Enhanced UART with a fractional baud rate generator, break detect, framing error
detection, and automatic address detection; 400 kHz byte-wide I2C-bus
communication port and SPI communication port.
I 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).
I Enhanced low voltage (brownout) detect allows a graceful system shutdown when
power fails.
I 28-pin TSSOP and PLCC packages with 23 I/O pins minimum and up to 26 I/O pins
while using on-chip oscillator and reset options.
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
EMI.
I Serial flash In-Circuit Programming (ICP) allows simple production coding with
commercial EPROM programmers. Flash security bits prevent reading of sensitive
application programs.




P89LPC9301 pdf, 반도체, 판매, 대치품
www.DNatXaSPheSete4Um.coicmonductors
4. Block diagram
P89LPC9301/931A1
8-bit microcontroller with accelerated two-clock 80C51 core
P89LPC9301/931A1
HIGH PERFORMANCE
ACCELERATED 2-CLOCK 80C51 CPU
P3[1:0]
P2[7:0]
P1[7:0]
P0[7:0]
4 kB/8 kB
CODE FLASH
256-BYTE
DATA RAM
internal
bus
PORT 3
CONFIGURABLE I/Os
PORT 2
CONFIGURABLE I/Os
PORT 1
CONFIGURABLE I/Os
PORT 0
CONFIGURABLE I/Os
KEYPAD
INTERRUPT
XTAL1
CRYSTAL
OR
RESONATOR
XTAL2
PROGRAMMABLE
OSCILLATOR DIVIDER
CPU
clock
CONFIGURABLE
OSCILLATOR
ON-CHIP RC
OSCILLATOR WITH
CLOCK DOUBLER
Fig 1. Block diagram
UART
REAL-TIME CLOCK/
SYSTEM TIMER
I2C-BUS
WATCHDOG TIMER
AND OSCILLATOR
TIMER 0
TIMER 1
ANALOG
COMPARATORS
SPI
TXD
RXD
SCL
SDA
T0
T1
CMP2
CIN2A
CIN1A
CIN2B
CMP1
CIN1B
SPICLK
MOSI
MISO
SS
POWER MONITOR
(POWER-ON RESET,
BROWNOUT RESET)
002aae447
P89LPC9301_931A1_1
Preliminary data sheet
Rev. 01 — 9 April 2009
© NXP B.V. 2009. All rights reserved.
4 of 65

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P89LPC9301 전자부품, 판매, 대치품
www.DNatXaSPheSete4Um.coicmonductors
P89LPC9301/931A1
8-bit microcontroller with accelerated two-clock 80C51 core
6.2 Pin description
Table 3. Pin description
Symbol
Pin
P0.0 to P0.7
P0.0/CMP2/
KBI0
3
P0.1/CIN2B/
KBI1
26
P0.2/CIN2A/
KBI2
25
P0.3/CIN1B/
KBI3
24
P0.4/CIN1A/
KBI4
23
P0.5/CMPREF/
KBI5
22
Type Description
I/O Port 0: Port 0 is an 8-bit I/O port with a user-configurable output type. During reset
Port 0 latches are configured in the input only mode with the internal pull-up
disabled. The operation of Port 0 pins as inputs and outputs depends upon the
port configuration selected. Each port pin is configured independently. Refer to
Section 7.16.1 “Port configurations” and Table 10 “Static characteristics” for
details.
The Keypad Interrupt feature operates with Port 0 pins.
All pins have Schmitt trigger inputs.
Port 0 also provides various special functions as described below:
I/O P0.0 — Port 0 bit 0.
O CMP2 — Comparator 2 output
I KBI0 — Keyboard input 0.
I/O P0.1 — Port 0 bit 1.
I CIN2B — Comparator 2 positive input B.
I KBI1 — Keyboard input 1.
I/O P0.2 — Port 0 bit 2.
I CIN2A — Comparator 2 positive input A.
I KBI2 — Keyboard input 2.
I/O P0.3 — Port 0 bit 3. High current source.
I CIN1B — Comparator 1 positive input B.
I KBI3 — Keyboard input 3.
I/O P0.4 — Port 0 bit 4. High current source.
I CIN1A — Comparator 1 positive input A.
I KBI4 — Keyboard input 4.
I/O P0.5 — Port 0 bit 5. High current source.
I CMPREF — Comparator reference (negative) input.
I KBI5 — Keyboard input 5.
P89LPC9301_931A1_1
Preliminary data sheet
Rev. 01 — 9 April 2009
© NXP B.V. 2009. All rights reserved.
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