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L8708H Datasheet(PDF) 7 Page - Zilog, Inc.

Part # L8708H
Description  IR/Low-Voltage Microcontroller
PDF  66 Pages
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Manufacturer  ZILOG [Zilog, Inc.]
Direct Link  http://www.zilog.com
Logo ZILOG - Zilog, Inc.

L8708H Datasheet(HTML) 7 Page - Zilog, Inc.

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Z86L88/81/86/87/89/73
IR/Low-Voltage Microcontroller
DS96LV00800
P R E L I M I N A R Y
7
1
Table 1. Pin Identification
40-Pin
DIP #
44-Pin
PLCC #
44-Pin
QFP #
Symbol
Direction
Description
26
40
23
P00
Input/Output
Port 0 is Nibble Programmable.
27
41
24
P01
Input/Output
Port 0 can be configured as
30
44
27
P02
Input/Output
A15-A8 external program
34
5
32
P03
Input/Output
ROM Address Bus.
5
17
44
P04
Input/Output
Port 0 can be configured as a
6
18
1
P05
Input/Output
mouse/trackball input.
7
19
2
P06
Input/Output
10
22
5
P07
Input/Output
28
42
25
P10
Input/Output
Port 1 is byte programmable.
29
43
26
P11
Input/Output
Port 1 can be configured as
32
3
30
P12
Input/Output
multiplexed A7-A0/D7-D0
33
4
31
P13
Input/Output
external program ROM
8
20
3
P14
Input/Output
Address/Data Bus.
9
21
4
P15
Input/Output
12
25
8
P16
Input/Output
13
26
9
P17
Input/Output
35
6
33
P20
Input/Output
Port 2 pins are individually
36
7
34
P21
Input/Output
configurable as input or output.
37
8
35
P22
Input/Output
38
9
36
P23
Input/Output
39
10
37
P24
Input/Output
2
14
41
P25
Input/Output
3
15
42
P26
Input/Output
4
16
43
P27
Input/Output
16
29
12
P31
Input
IRQ2/Modulator input
17
30
13
P32
Input
IRQ0
18
31
14
P33
Input
IRQ1
19
32
15
P34
Output
T8 output
22
36
19
P35
Output
T16 output
24
38
21
P36
Output
T8/T16 output
23
37
20
P37
Output
20
33
16
/AS
Output
Address Strobe
40
11
38
/DS
Output
Data Strobe
1
13
40
R//W
Output
Read/Write
21
35
18
/RESET
Input
Reset
15
28
11
XTAL1
Input
Crystal, Oscillator Clock
14
27
10
XTAL2
Output
Crystal, Oscillator Clock
11
23,24
6,7
VDD
Power Supply
31
1,2, 34
17,28,29
VSS
Ground
25
39
22
Pref1
Input
Comparator 1 Reference
12
39
R//RL
Input
ROM/ROMless



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