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PDF M3806 Data sheet ( Hoja de datos )
| Número de pieza | M3806 | |
| Descripción | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER | |
| Fabricantes | Renesas Technology | |
| Logotipo |  |
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1. M3806  Hay una vista previa y un enlace de descarga de M3806 (archivo pdf) en la parte inferior de esta página. Total 58 Páginas | ||
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To all our customers
Regarding the change of names mentioned in the document, such as Mitsubishi
Electric and Mitsubishi XX, to Renesas Technology Corp.
The semiconductor operations of Hitachi and Mitsubishi Electric were transferred to Renesas
Technology Corporation on April 1st 2003. These operations include microcomputer, logic, analog
and discrete devices, and memory chips other than DRAMs (flash memory, SRAMs etc.)
Accordingly, although Mitsubishi Electric, Mitsubishi Electric Corporation, Mitsubishi
Semiconductors, and other Mitsubishi brand names are mentioned in the document, these names
have in fact all been changed to Renesas Technology Corp. Thank you for your understanding.
Except for our corporate trademark, logo and corporate statement, no changes whatsoever have been
made to the contents of the document, and these changes do not constitute any alteration to the
contents of the document itself.
Note : Mitsubishi Electric will continue the business operations of high frequency & optical devices
and power devices.
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Renesas Technology Corp.
Customer Support Dept.
April 1, 2003
1 page  
PIN DESCRIPTION
MITSUBISHI MICROCOMPUTERS
3806 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Pin
VCC
VSS
Name
Power source
Function
Function except a port function
• Apply voltage of 3.0 V to 5.5 V to VCC, and 0 V to VSS.
(Extended operating temperature version : 4.0 V to 5.5 V)
(High-speed version : 2.7 V to 5.5 V)
CNVSS
CNVSS
• This pin controls the operation mode of the chip.
• Normally connected to VSS.
• If this pin is connected to VCC, the internal ROM is inhibited and external memory is accessed.
VREF
Analog reference • Reference voltage input pin for A-D and D-A converters
voltage
AVSS
______
RESET
Analog power
source
Reset input
• GND input pin for A-D and D-A converters
• Connect to VSS.
• Reset input pin for active “L”
XIN
XOUT
Clock input
Clock output
• Input and output signals for the internal clock generating circuit.
• Connect a ceramic resonator or quartz-crystal oscillator between the XIN and XOUT pins to set the
oscillation frequency.
• If an external clock is used, connect the clock source to the XIN pin and leave the XOUT pin open.
• The clock is used as the oscillating source of system clock.
P00 – P07
P10 – P17
P20 – P27
P30 – P37
I/O port P0
I/O port P1
I/O port P2
I/O port P3
• 8 bit CMOS I/O port
• I/O direction register allows each pin to be individually programmed as either input or output.
• At reset this port is set to input mode.
• In modes other than single-chip, these pins are used as address, data, and control bus I/O pins.
• CMOS compatible input level
• CMOS 3-state output structure
P40, P41
P42/INT0,
P43/INT1
I/O port P4
• 8-bit CMOS I/O port with the same function as port P0
• CMOS compatible input level
• CMOS 3-state output structure
• External interrupt input pin
P44/RXD,
P45/TXD,
P46/S__C_L_K_1,
P47/SRDY1
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• Serial I/O1 I/O pins
P50
P51/INT2 –
P53/INT4
I/O port P5
• 8-bit CMOS I/O port with the same function as port P0
• CMOS compatible input level
• CMOS 3-state output structure
• External interrupt input pin
P54/CNTR0,
P55/CNTR1
• Timer X and Timer Y I/O pins
P56/DA1,
P57/DA2
• D-A conversion output pins
P60/AN0 –
P67/AN7
I/O port P6
• 8-bit CMOS I/O port with the same function as
port P0
• CMOS compatible input level
• CMOS 3-state output structure
• A-D conversion input pins
4
5 Page 
MITSUBISHI MICROCOMPUTERS
3806 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Memory
Special function register (SFR) area
The Special Function Register area in the zero page contains con-
trol registers such as I/O ports and timers.
RAM
RAM is used for data storage and for stack area of subroutine
calls and interrupts.
ROM
The first 128 bytes and the last 2 bytes of ROM are reserved for
device testing and the rest is user area for storing programs.
Interrupt vector area
The interrupt vector area contains reset and interrupt vectors.
Zero page
The 256 bytes from addresses 000016 to 00FF16 are called the
zero page area. The internal RAM and the special function regis-
ters (SFR) are allocated to this area.
The zero page addressing mode can be used to specify memory
and register addresses in the zero page area. Access to this area
with only 2 bytes is possible in the zero page addressing mode.
Special page
The 256 bytes from addresses FF0016 to FFFF16 are called the
special page area. The special page addressing mode can be
used to specify memory addresses in the special page area. Ac-
cess to this area with only 2 bytes is possible in the special page
addressing mode.
RAM area
RAM capacity
(bytes)
192
256
384
512
640
768
896
1024
Address
XXXX16
00FF16
013F16
01BF16
023F16
02BF16
033F16
03BF16
043F16
ROM area
ROM capacity
(bytes)
4096
8192
12288
16384
20480
24576
28672
32768
36864
40960
45056
49152
53248
57344
61440
Address
YYYY16
F00016
E00016
D00016
C00016
B00016
A00016
900016
800016
700016
600016
500016
400016
300016
200016
100016
000016
004016
010016
RAM
SFR area
XXXX16
Reserved area
Address
ZZZZ16
F08016
E08016
D08016
C08016
B08016
A08016
908016
808016
708016
608016
508016
408016
308016
208016
108016
044016
YYYY16
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ZZZZ16
ROM
FF0016
FFDC16
FFFE16
FFFF16
Not used
Reserved ROM area
(128 bytes)
Interrupt vector area
Reserved ROM area
Zero page
Special page
Fig. 2 Memory map diagram
10
11 Page | ||
| Páginas | Total 58 Páginas | |
| PDF Descargar | [ Datasheet M3806.PDF ] | |
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