P87LPC779 View Datasheet(PDF) - Philips Electronics
Part Name
Description
Manufacturer
P87LPC779
Philips Electronics
P87LPC779 Datasheet PDF : 74 Pages
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Philips Semiconductors
P87LPC779
CMOS single-chip 8-bit microcontroller
5. Pinning information
5.1 Pinning
handbook, halfpage
CMP2/P0.0 1
DAC0/P1.7 2
DAC1/P1.6 3
RST/P1.5 4
VSS 5
X1/P2.1 6
X2/CLKOUT/P2.0 7
INT1/P1.4 8
SDA/INT0/P1.3 9
SCL/T0/P1.2 10
20 P0.1/CIN2B
19 P0.2/CIN2A
18 P0.3/CIN1B/AD0
17 P0.4/CIN1A/AD1
16 P0.5/CMPREF/AD2
15 VDD
14 P0.6/CMP1/AD3
13 P0.7/T1
12 P1.0/TxD
11 P1.1/RxD
002aaa814
Fig 3. 20 pin DIP and SO configuration.
5.2 Pin description
Table 2: Pin description
Symbol
Pin
Type
P0.0 - P0.7 1, 20-16, I/O
14, 13
P0.0
1
O
P0.1
20
I
P0.2
19
I
P0.3
18
I
I
P0.4
17
I
I
P0.5
16
I
I
P0.6
14
O
I
P0.7
13
I/O
Description
Port 0: Port 0 is an 8-bit I/O port with a user-configurable output type. Port 0 latches are
configured in the quasi-bidirectional mode and have either ones or zeros written to them
during reset, as determined by the PRHI bit in the UCFG1 configuration byte. 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 8.9 “I/O ports” and
Table 55 “DC electrical characteristics” for details.
The Keypad Interrupt feature operates with Port 0 pins.
Port 0 also provides various special functions as described below:
CMP2 — Comparator 2 output.
CIN2B — Comparator 2 positive input B.
CIN2A — Comparator 2 positive input A.
CIN1B — Comparator 1 positive input B.
AD0 — A/D channel 0 input.
CIN1A — Comparator 1 positive input A.
AD1 — A/D channel 1 input.
CMPREF — Comparator reference (negative) input.
AD2 — A/D channel 2 input.
CMP1 — Comparator 1 output.
AD3 — A/D channel 3 input.
T1 — Timer/counter 1 external count input or overflow output.
9397 750 13213
Product data
Rev. 02 — 03 May 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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