P89LPC9241FDH,112 NXP Semiconductors, P89LPC9241FDH,112 Datasheet - Page 26

• Manufacturer Part Number: P89LPC9241FDH,112
• Description: IC 80C51 MCU FLASH 4K 20-TSSOP
• Manufacturer: NXP Semiconductors
• Series: LPC900r

Specifications of P89LPC9241FDH,112

• Program Memory Type: FLASH
• Program Memory Size: 4KB (4K x 8)
• Package / Case: 20-TSSOP
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 18MHz
• Connectivity: I²C, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 18
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 3.6 V
• Data Converters: A/D 4x8b; D/A 1x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: P89LPC
• Core: 80C51
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: I2C, SPI, UART
• Maximum Clock Frequency: 18 MHz
• Number Of Programmable I/os: 15
• Number Of Timers: 2
• Operating Supply Voltage: 2.4 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 4 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 935288642112

NXP Semiconductors
P89LPC92X1
Product data sheet
7.3.1 Clock definitions
7.3.2 CPU clock (OSCCLK)
7.4.1 Low speed oscillator option
7.4.2 Medium speed oscillator option
7.4.3 High speed oscillator option
7.2 Enhanced CPU
7.3 Clocks
7.4 Crystal oscillator option
The P89LPC9201/9211/922A1/9241/9251 uses an enhanced 80C51 CPU which runs at
six times the speed of standard 80C51 devices. A machine cycle consists of two CPU
clock cycles, and most instructions execute in one or two machine cycles.
The P89LPC9201/9211/922A1/9241/9251 device has several internal clocks as defined
below:
OSCCLK — Input to the DIVM clock divider. OSCCLK is selected from one of four clock
sources (see
Section 7.11 “CCLK modification: DIVM
Remark: f
CCLK — CPU clock; output of the clock divider. There are two CCLK cycles per machine
cycle, and most instructions are executed in one to two machine cycles (two or four CCLK
cycles).
RCCLK — The internal 7.373 MHz RC oscillator output. The clock doubler option, when
enabled, provides an output frequency of 14.746 MHz.
PCLK — Clock for the various peripheral devices and is
The P89LPC9201/9211/922A1/9241/9251 provides several user-selectable oscillator
options in generating the CPU clock. This allows optimization for a range of needs from
high precision to lowest possible cost. These options are configured when the flash is
programmed and include an on-chip watchdog oscillator, an on-chip RC oscillator, an
oscillator using an external crystal, or an external clock source.
The crystal oscillator can be optimized for low, medium, or high frequency crystals
covering a range from 20 kHz to 18 MHz. It can be the clock source of OSCCLK and RTC.
Low speed oscillator option can be the clock source of WDT.
This option supports an external crystal in the range of 20 kHz to 100 kHz. Ceramic
resonators are also supported in this configuration.
This option supports an external crystal in the range of 100 kHz to 4 MHz. Ceramic
resonators are also supported in this configuration.
This option supports an external crystal in the range of 4 MHz to 18 MHz. Ceramic
resonators are also supported in this configuration.
osc
Figure
is defined as the OSCCLK frequency.
All information provided in this document is subject to legal disclaimers.
8) and can also be optionally divided to a slower frequency (see
Rev. 2 — 1 December 2010
P89LPC9201/9211/922A1/9241/
register”).
8-bit microcontroller with 8-bit ADC
CCLK
⁄
2
.
© NXP B.V. 2010. All rights reserved.
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