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P89LPC985 데이터시트 PDF




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부품번호 P89LPC985 기능
기능 8-bit microcontroller
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P89LPC985 데이터시트, 핀배열, 회로
www.DataSheet4U.com
P89LPC980/982/983/985
8-bit microcontroller with accelerated two-clock 80C51 core,
4 kB/8 kB wide-voltage byte-erasable flash with 10-bit ADC
Rev. 02 — 8 February 2010
Preliminary data sheet
1. General description
The P89LPC980/982/983/985 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 P89LPC980/982/983/985 in order to reduce
component count, board space, and system cost.
2. Features
2.1 Principal features
„ 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.
„ 256-byte RAM data memory. Both the P89LPC982 and the P89LPC985 also include a
256-byte auxiliary on-chip RAM.
„ 8-input multiplexed 10-bit ADC (P89LPC985, 4-input multiplexed 10-bit ADC on
P89LPC983) with window comparator that can generate an interrupt for in or out of
range results. Two analog comparators with selectable inputs and reference source.
„ Five 16-bit counter/timers (each may be configured to toggle a port output upon timer
overflow or to become a PWM output).
„ 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.
„ 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.
„ High-accuracy internal RC oscillator option 7.373 MHz calibrated to ±1 %, with clock
doubler option, allows operation without external oscillator components. The RC
oscillator option is selectable and fine tunable.
„ Watchdog timer with separate on-chip oscillator, nominal 400 kHz/25 kHz, calibrated to
±10 % at 400 kHz, requiring no external components. The watchdog prescaler is
selectable from eight values.
„ Pin remap for UART, I2C and SPI.
„ 2.4 V to 5.5 V VDD operating range.
„ Enhanced low voltage (brownout) detect allows a graceful system shutdown when
power fails.
„ 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.




P89LPC985 pdf, 반도체, 판매, 대치품
NXP Semiconductors
4. Block diagram
www.DataSheet4U.com
P89LPC980/982/983/985
8-bit microcontroller with accelerated two-clock 80C51 core
P89LPC980/982
ACCELERATED 2-CLOCK 80C51 CPU
P3[1:0]
P2[7:0]
P1[7:0]
P0[7:0]
8 kB/4 kB
CODE FLASH
256-BYTE
DATA RAM
internal bus
256-BYTE
AUXILIARY RAM
(P89LPC982)
PORT 3
CONFIGURABLE I/Os
PORT 2
CONFIGURABLE I/Os
PORT 1
CONFIGURABLE I/Os
PORT 0
CONFIGURABLE I/Os
KEYPAD
INTERRUPT
WATCHDOG TIMER
AND OSCILLATOR
UART
I2C-BUS
SPI
REAL-TIME CLOCK/
SYSTEM TIMER
TIMER 0
TIMER 1
TIMER 2
TIMER 3
TIMER 4
ANALOG
COMPARATORS
TXD
RXD
SCL
SDA
SPICLK
MOSI
MISO
SS
T0
T1
T2
T2EX
T3
T3EX
T4
T4EX
CMP2
CIN2B
CIN2A
CMP1
CIN1A
CIN1B
CRYSTAL
OR
RESONATOR
XTAL1
XTAL2
PROGRAMMABLE
OSCILLATOR DIVIDER
CPU
clock
CONFIGURABLE
OSCILLATOR
ON-CHIP RC
OSCILLATOR
WITH CLOCK
DOUBLER
Fig 1. P89LPC980/982 block diagram
POWER MANAGEMENT
(POWER-ON RESET,
BROWNOUT RESET,
REGULATORS)
002aae532
P89LPC980_982_983_985_2
Preliminary data sheet
Rev. 02 — 8 February 2010
© NXP B.V. 2010. All rights reserved.
4 of 85

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P89LPC985 전자부품, 판매, 대치품
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6. Pinning information
6.1 Pinning
www.DataSheet4U.com
P89LPC980/982/983/985
8-bit microcontroller with accelerated two-clock 80C51 core
P2.0/TXD 1
P2.1/RXD 2
P0.0/CMP2/KBI0/SPICLK 3
P1.7/T3EX/MOSI 4
P1.6/MISO 5
P1.5/RST 6
VSS 7
P3.1/XTAL1 8
P3.0/XTAL2/CLKOUT 9
P1.4/INT1/T4EX/SS 10
P1.3/INT0/SDA/T4 11
P1.2/T0/SCL 12
P2.2/MOSI 13
P2.3/MISO 14
P89LPC980
P89LPC982
28 P2.7/SDA
27 P2.6/SCL
26 P0.1/CIN2B/KBI1
25 P0.2/CIN2A/KBI2
24 P0.3/CIN1B/KBI3/T2
23 P0.4/CIN1A/KBI4
22 P0.5/CMPREF/KBI5/T3
21 VDD
20 P0.6/CMP1/KBI6
19 P0.7/T1/KBI7
18 P1.0/TXD
17 P1.1/RXD/T2EX
16 P2.5/SPICLK
15 P2.4/SS
002aae536
Fig 5. P89LPC980/982 TSSOP28 pin configuration
P2.0/AD07/TXD 1
P2.1/AD06/RXD 2
P0.0/CMP2/KBI0/AD05/SPICLK 3
P1.7/AD04/T3EX/MOSI 4
P1.6/MISO 5
P1.5/RST 6
VSS 7
P3.1/XTAL1 8
P3.0/XTAL2/CLKOUT 9
P1.4/INT1/T4EX/SS 10
P1.3/INT0/SDA/T4 11
P1.2/T0/SCL 12
P2.2/MOSI 13
P2.3/MISO 14
P89LPC983
P89LPC985
28 P2.7/SDA
27 P2.6/SCL
26 P0.1/CIN2B/KBI1/AD00
25 P0.2/CIN2A/KBI2/AD01
24 P0.3/CIN1B/KBI3/AD02/T2
23 P0.4/CIN1A/KBI4/AD03
22 P0.5/CMPREF/KBI5/T3
21 VDD
20 P0.6/CMP1/KBI6
19 P0.7/T1/KBI7
18 P1.0/TXD
17 P1.1/RXD/T2EX
16 P2.5/SPICLK
15 P2.4/SS
002aae537
Fig 6. P89LPC983/985 TSSOP28 pin configuration
P89LPC980_982_983_985_2
Preliminary data sheet
Rev. 02 — 8 February 2010
© NXP B.V. 2010. All rights reserved.
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