P89LPC9103FTK NXP Semiconductors, P89LPC9103FTK Datasheet - Page 11

• Manufacturer Part Number: P89LPC9103FTK
• Description: MCU 8BIT 80C51 1K FLASH, HVSON-10
• Manufacturer: NXP Semiconductors

Specifications of P89LPC9103FTK

• Controller Family/series: (8051) 8052
• Core Size: 8bit
• No. Of I/o's: 8
• Program Memory Size: 1KB
• Ram Memory Size: 128Byte
• Cpu Speed: 18MHz
• Oscillator Type: Internal Only
• No. Of Timers: 4
• No. Of Pwm: RoHS Compliant

NXP Semiconductors
Table 4.
P89LPC9102_9103_9107_3
Product data sheet
Symbol
P1.5/RST
V
V
SS
DD
P89LPC9102 pin description
Pin
2
3
7
Type
I
I
I
I
Description
P1.5 — Port 1 bit 5 (input-only).
RST — External Reset input during power-on or if selected via User Configuration
Register 1 (UCFG1). When functioning as a reset input a LOW on this pin resets the
microcontroller, causing I/O ports and peripherals to take on their default states, and
the processor begins execution at address 0. When using an oscillator frequency
above 12 MHz, the reset input function of P1.5 must be enabled. An external
circuit is required to hold the device in reset at power-up until V
its specified level. When system power is removed V
minimum specified operating voltage. When using an oscillator frequency
above 12 MHz, in some applications, an external brownout detect circuit may
be required to hold the device in reset when V
specified operating voltage.
Ground: 0 V reference.
Power supply: This is the power supply voltage for normal operation as well as Idle
mode and Power-down mode.
…continued
Rev. 03 — 10 July 2007
8-bit microcontrollers with two-clock accelerated 80C51 core
P89LPC9102/9103/9107
DD
falls below the minimum
DD
will fall below the
© NXP B.V. 2007. All rights reserved.
DD
has reached
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