p89lpc9401 NXP Semiconductors, p89lpc9401 Datasheet - Page 10

• Manufacturer Part Number: p89lpc9401
• Description: 8-bit Microcontroller With Accelerated Two-clock 80c51 Core 8 Kb 3 V Byte-erasable Flash With 32 Segment X 4 Lcd Driver
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 3:
[1]
P89LPC9401_1
Preliminary data sheet
Symbol
P3.1/XTAL1
SDA_LCD
SCL_LCD
BP0 to BP3
S0 to S31
V
V
V
SS
DD
LCD
Input/output for P1.0 to P1.4, P1.6, P1.7. Input for P1.5.
Pin description
Pin
13
63
64
27 to 30
31 to 62
12
25
26
…continued
Type Description
I/O
I
I/O
I/O
O
O
I
I
I
P3.1 — Port 3 bit 1.
XTAL1 — Input to the oscillator circuit and internal clock generator circuits (when
selected via the flash configuration). It can be a port pin if internal RC oscillator or
watchdog oscillator is used as the CPU clock source, and if XTAL1/XTAL2 are not used
to generate the clock for the RTC/system timer.
SDA LCD — I
SCL LCD — I
BP0 to BP3: LCD backplane outputs.
S0 to S31: LCD segment outputs.
Ground: 0 V reference.
Power supply: This is the power supply voltage for normal operation as well as Idle
and Power-down modes.
LCD power supply: LCD supply voltage.
8-bit two-clock 80C51 microcontroller with 32 segment
Rev. 01 — 5 September 2005
2
2
C-bus clock signal for the LCD controller.
C-bus data signal for the LCD controller.
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
P89LPC9401
4 LCD driver
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