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P87LPC778 Datasheet(PDF) 5 Page - NXP Semiconductors

Part No. P87LPC778
Description  CMOS single-chip 8-bit 80C51 microcontroller 128-byte data RAM, 8 kB OTP
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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P87LPC778 Datasheet(HTML) 5 Page - NXP Semiconductors

 
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Philips Semiconductors
P87LPC778
CMOS single-chip 8-bit microcontroller
Product data
Rev. 01 — 31 March 2004
5 of 79
9397 750 12378
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
5.
Pinning information
5.1 Pinning
5.2 Pin description
Fig 3.
20 pin DIP and SO configuration.
handbook, halfpage
002aaa612
1
2
3
4
5
6
7
8
9
10
PWM3/CMP2/P0.0
PWM2/P1.7
PWM1/P1.6
RST/P1.5
VSS
X1/P2.1
X2/CLKOUT/P2.0
INT1/P1.4
SDA/INT0/P1.3
SCL/T0/P1.2
P0.1/CIN2B/PWM0
P0.2/CIN2A
P0.3/CIN1B/AD0
P0.4/CIN1A/AD1
P0.5/CMPREF/AD2
VDD
P0.6/CMP1/AD3
P0.7/T1
P1.0/TxD
P1.1/RxD
20
19
18
17
16
15
14
13
12
11
Table 2:
Pin description
Symbol
Pin
Type
Description
P0.0 - P0.7
1, 20-16,
14, 13
I/O
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 67 “DC electrical characteristics” for details.
The Keypad Interrupt feature operates with Port 0 pins.
Port 0 also provides various special functions as described below:
P0.0
1
O
CMP2 — Comparator 2 output.
O
PWM3 — PWM output 3.
P0.1
20
I
CIN2B — Comparator 2 positive input B.
O
PWM0 — PWM output 0.
P0.2
19
I
CIN2A — Comparator 2 positive input A.
P0.3
18
I
CIN1B — Comparator 1 positive input B.
I
AD0 — A/D channel 0 input.
P0.4
17
I
CIN1A — Comparator 1 positive input A.
I
AD1 — A/D channel 1 input.
P0.5
16
I
CMPREF — Comparator reference (negative) input.
I
AD2 — A/D channel 2 input.
P0.6
14
O
CMP1 — Comparator 1 output.
I
AD3 — A/D channel 3 input.


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