MPC89L515A Megawin Technology, MPC89L515A Datasheet - Page 5
![no-image](/images/no-image-200.jpg)
MPC89L515A
Manufacturer Part Number
MPC89L515A
Description
8-bit micro-controller
Manufacturer
Megawin Technology
Datasheet
1.MPC89L515A.pdf
(38 pages)
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MEGAWIN
P4.0
P4.1
P4.2 (/INT3)
P4.3 (/INT2)
RESET
ALE
/PSEN
/EA
XTAL1
XTAL2
VDD
VSS
30
19
18
40
29
31
20
9
23
34
12
10
33
32
35
21
20
44
22
1
MPC89x515A Data Sheet
17
28
39
27
26
29
15
14
38
16
6
4
BU Port4 is extended I/O ports such like Port1. It can
IS
O
O
O
G
P
I
I
P3.2 and P3.3 also act as external interrupt
sources, alias INT0 and INT1.
P3.4 and P3.5 also act as event sources for
timer0 and timer1 individually, alias T0 and T1.
P3.6 also acts as write signal while access to
external memory, alias /WR.
P3.7 also acts as read signal while access to
external memory, alias /RD.
be available only on 44L-PLCC and 44L-PQFP
package.
A high on this pin for at least two machine cycles
will reset the device.
Output pulse for latching the low byte of address
during accesses to external memory.
The read strobe to external program memory, low
active.
EA must be kept at low to enable the device to
fetch program code from external flash memory.
An
embedded in this pin.
Input to the inverting oscillator amplifier.
Output from the inverting amplifier.
Power Supply
Ground
internal
pull-up
resistance
has
5
been
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