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PDF P89C738 Data sheet ( Hoja de datos )

Número de pieza P89C738
Descripción 8-bit Flash microcontrollers
Fabricantes NXP Semiconductors 
Logotipo NXP Semiconductors Logotipo



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No Preview Available ! P89C738 Hoja de datos, Descripción, Manual

INTEGRATED CIRCUITS
DATA SHEET
P89C738; P89C739
8-bit Flash microcontrollers
Product specification
Supersedes data of 1997 Dec 15
File under Integrated Circuits, IC20
1998 Apr 07

1 page




P89C738 pdf
Philips Semiconductors
8-bit Flash microcontrollers
5 FUNCTIONAL DIAGRAM
Product specification
P89C738; P89C739
handbook, full pagewidth
XTAL1
XTAL2
RST
EA
PSEN
ALE
PORT 5
P89C738
P89C739
PORT 0
ADDRESS
AND
DATA BUS
PORT 1
T2
T2EX
PORT 2
ADDRESS
BUS
PORT 4
PORT 3
MGK191
VSS
VDD
RXD
TXD
INT0
INT1
T0
T1
WR
RD
secondary
functions
1998 Apr 07
Fig.2 Functional diagram.
5

5 Page





P89C738 arduino
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Table 1 Pin description for DIP40; QFP44; PLC44; QFP64 and PLCC68.
SYMBOL
P1.0/T2
P1.1/T2EX
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
RST
PLCC68 QFP64
19 11
21 13
22 14
23 15
25 17
27 19
28 20
29 21
30 22
PIN(1)
PLCC44 QFP44
16 2
15 3
14 4
13 5
12 6
17
28
39
4 10
DIP40
1
2
3
4
5
6
7
8
9
P3.0/RXD/data 34 26 5
11 10
P3.1/TXD/clock 39 29 7
13 11
P3.2/INT0
40
30
8
14 12
P3.3/INT1
41
31
9
15 13
P3.4/T0
42 32 10 16 14
P3.5/T1
43 33 11
17 15
P3.6WR 45 35 44 18 16
P3.7/RD 47 37 43 19 17
XTAL2
XTAL1
48 38 42 20 18
49 39 41 21 19
VSS 51 41 40 22 20
DESCRIPTION
Port 1: P1.0 to P1.7; 8-bit quasi-bidirectional I/O port. Port 1 can
sink/source one TTL (= 4 LSTTL) input. It can drive CMOS inputs
without external pull-ups.
Port 1 alternative functions are: T2; Timer/event counter 2 external
event counter input (falling edge triggered). T2EX; Timer/event
counter 2 capture/reload trigger or external interrupt 2 input (falling
edge triggered).
Reset; a HIGH level on this pin for two machine cycles while the
oscillator is running, resets the device. An internal pull-down resistor
permits power-on reset using only a capacitor connected to VDD.
After a Watchdog Timer overflow this pin is pulled HIGH while the
internal reset signal is active.
Port 3: P3.0 to P3.7; 8-bit quasi-bidirectional I/O Port with internal
pull-ups. Port 3 can sink/source one TTL (= 4 LSTTL) input. It can
drive CMOS inputs without external pull-ups.
Port 3 alternative functions are: RXD/data; Serial Port data input
(asynchronous) or data input/output (synchronous).
TXD/clock; Serial Port data output (asynchronous) or clock output
(synchronous). INT0; External interrupt 0 or gate control input for
Timer/event counter 0. INT1; External interrupt 1 or gate control
input for Timer/event counter 1. T0; external input for Timer/event
counter 0. T1; external input for Timer/event counter 1.
WR; external data memory write strobe. RD; external data memory
read strobe.
Crystal input 2: output of the inverting amplifier that forms the
oscillator. This pin left open-circuit when an external oscillator clock
is used (see Figs 18 and 20).
Crystal input 1: input to the inverting amplifier that forms the
oscillator, and input to the internal clock generator. Receives the
external oscillator clock signal when an external oscillator is used
(see Figs 18 and 20).
Ground: circuit ground potential.

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