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PCF84C85AP Datasheet(PDF) 5 Page - NXP Semiconductors

Part # PCF84C85AP
Description  Microcontroller with extended I/O
PDF  20 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PCF84C85AP Datasheet(HTML) 5 Page - NXP Semiconductors

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1996 Nov 21
5
Philips Semiconductors
Product specification
Microcontroller with extended I/O
PCF84C85A
5
PINNING INFORMATION
5.1
Pinning
Fig.2 Pin configuration.
handbook, halfpage
1
2
3
4
5
6
7
8
9
10
11
12
13
40
39
38
37
36
35
34
33
32
31
30
29
28
27
14
15
16
17
18
19
20
21
22
23
24
25
26
PCF84C85A
P0.0
P0.1
P0.2
P0.3
P0.4
V DD
T1
SCLK
SDA / P2.3
DP1.6
DP1.5
DP1.4
DP1.3
DP1.2
DP1.1
DP1.0
DP0.7
DP0.6
P0.5
P0.6
P0.7
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
XTAL1
XTAL2
VSS
RESET
DP0.0
DP0.1
DP0.2
DP0.3
DP0.4
DP0.5
MLA597
INT / T0
5.2
Pin description
Table 1
DIP40 and VSO40 packages.
SYMBOL
PIN
TYPE
DESCRIPTION
INT/T0
1
I
Interrupt/Test 0
P0.0 to P0.7
2 to 9
I/O
8 bits of Port 0: 8-bit
quasi-bidirectional
I/O port
P1.0 to P1.7
10 to 17
I/O
8 bits of Port 1: 8-bit
quasi-bidirectional
I/O port
XTAL1
18
I
XTAL input: crystal
oscillator/external
clock input
XTAL2
19
O
XTAL output: crystal
oscillator output
VSS
20
P
ground
RESET
21
I
Reset input
DP0.0 to
DP0.7
22 to 29
I/O
Derivative Port 0:
quasi-bidirectional
I/O port (8-bit)
DP1.0 to
DP1.6
30 to 36
I/O
Derivative Port 1:
quasi-bidirectional
I/O lines (7-bit)
SDA/P2.3
37
I/O
bidirectional data line
of the I2C-bus
interface; or Port 2
quasi-bidirectional
I/O port (1 bit only)
SCLK
38
I/O
bidirectional clock
line of the I2C-bus
interface
T1
39
I
Test 1: count input of
8-bit timer/event
counter 1
VDD
40
P
positive supply
6
PARALLEL PORTS
Of the standard quasi-bidirectional I/O ports, Port 2 is
incomplete, providing only line SDA/P2.3 that is shared
with the I2C-bus interface. In addition to the standard ports,
two derivative I/O ports are available:
• Derivative Port of 8 lines (DP0.0 to DP0.7)
• Derivative Port of 7 lines (DP1.0 to DP1.6).
Missing bits of incomplete ports, i.e. P2.0 to P2.2 and
DP1.7, are fixed at zero in the corresponding registers.
7
INSTRUCTION SET
See
“PCF84CXXXA family” data sheet for a complete
description of the instruction set.



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