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PDF M3826 Data sheet ( Hoja de datos )
| Número de pieza | M3826 | |
| Descripción | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER | |
| Fabricantes | Renesas Technology | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de M3826 (archivo pdf) en la parte inferior de esta página. Total 70 Páginas | ||
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3826 Group (One Time PROM version)
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
REJ03B0181-0100
Rev.1.00
Sep 06, 2006
DESCRIPTION
The 3826 group is the 8-bit microcomputer based on the 740 fam-
ily core technology.
The 3826 group has the LCD drive control circuit, an 8-channel A/
D converter, D/A converter, serial interface and PWM as additional
functions.
The various microcomputers in the 3826 group (One Time PROM
version) include variations of internal memory size and packaging.
This datasheet describes only the One Time PROM version (ROM
60 K version) of 3826 Group.
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FEATURES
• Basic machine-language instructions ....................................... 71
• The minimum instruction execution time ............................ 0.5 µs
• Memory size
(at 8MHz oscillation frequency)
ROM ............................................................................. 60 K bytes
RAM ............................................................................ 2560 bytes
• Programmable input/output ports ............................................. 55
• Software pull-up resistors .................................................... Built-in
• Output ports ................................................................................. 8
• Input ports .................................................................................... 1
•Interrupts .................................................. 17 sources, 16 vectors
External ................ 7 sources (includes key input interrupt)
Internal ................................................................ 9 sources
Software ................................................................ 1 source
•Timers ............................................................ 8-bit ✕ 3, 16-bit ✕ 2
• Serial interface
Serial I/O1 ...................... 8-bit ✕ 1 (UART or Clock-synchronous)
Serial I/O2 .................................... 8-bit ✕ 1 (Clock-synchronous)
• PWM output .................................................................... 8-bit ✕ 1
• A/D converter ............. 10-bit ✕ 8 channels or 8-bit ✕ 8 channels
• D/A converter .................................................. 8-bit ✕ 2 channels
(used as DTMF and CTCSS function)
• LCD drive control circuit
Bias ......................................................................... 1/2, 1/3
Duty .................................................................. 1/2, 1/3, 1/4
Common output ................................................................ 4
Segment output .............................................................. 40
• 2 Clock generating circuits
(connect to external ceramic resonator or quartz-crystal oscillator)
• Watchdog timer ............................................................. 14-bit ✕ 1
• Power source voltage
In high-speed mode (f(XIN) = 8 MHz) ..................... 4.0 V to 5.5 V
In middle-speed mode (f(XIN) = 8 MHz) ................. 2.5 V to 5.5 V
In low-speed mode .................................................. 2.5 V to 5.5 V
• Power dissipation
In high-speed mode ................................................... Typ. 32 mW
(f(XIN) = 8 MHz, VCC = 5 V, Ta = 25 °C)
In low-speed mode ...................................................... Typ. 45 µW
(f(XIN) = stop, f(XCIN) = 32 kHz, VCC = 3 V, Ta = 25 °C)
• Operating temperature range ................................... – 20 to 85°C
APPLICATIONS
Camera, cordless phone, wireless application, household appli-
ances, etc.
Rev.1.00 Sep 06, 2006 page 1 of 88
REJ03B0181-0100
1 page  
3826 Group (One Time PROM version)
Table 2 Pin description (2)
Pin
P40
Name
I/O port P4
P41/INT1,
P42/INT2
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P44/RXD,
P45/TXD,
P46/SCLK1,
P47/SRDY1
P50/PWM0,
P51/PWM1
P52/RTP0,
P53/RTP1
P54/CNTR0,
P55/CNTR1
P56/DA1
P57/ADT/DA2
I/O port P5
P60/SIN2/AN0,
P61/SOUT2/AN1,
P62/SCLK21/AN2,
P63/SCLK22/AN3
P64/AN4–
P67/AN7
I/O port P6
P70/INT0
P71–P77
Input port P7
I/O port P7
XCOUT
XCIN
Sub-clock output
Sub-clock input
Function
Function except a port function
•1-bit I/O port.
•CMOS compatible input level.
•N-channel open-drain output structure.
•I/O direction register allows this pin to be individually programmed as either input or output.
•7-bit I/O port.
•CMOS compatible input level.
•CMOS 3-state output structure.
•I/O direction register allows each pin to be individually
programmed as either input or output.
•Pull-up control is enabled.
•INTi interrupt input pins
•System clock φ output pin
•Timer 2 output pin
•Serial I/O1 I/O pins
•8-bit I/O port.
•CMOS compatible input level.
•CMOS 3-state output structure.
•PWM output pins
•Real time port output pins
•I/O direction register allows each pin to be individually
programmed as either input or output.
•Timer X, Y I/O pins
•Pull-up control is enabled.
•D/A converter output pin
•D/A converter output pin
•8-bit I/O port.
•CMOS compatible input level.
•CMOS 3-state output structure.
•I/O direction register allows each pin to be individually
programmed as either input or output.
•A/D external trigger input pin
•A/D converter input pins
•Serial I/O2 I/O pins
•A/D converter input pins
•Pull-up control is enabled.
•1-bit input port.
•INT0 interrupt input pin
•7-bit I/O port.
•CMOS compatible input level.
•N-channel open-drain output structure.
•I/O direction register allows each pin to be individually programmed as either input or output.
•Sub-clock generating circuit I/O pins.
(Connect an oscillator. External clock cannot be used.)
Rev.1.00 Sep 06, 2006 page 5 of 88
REJ03B0181-0100
5 Page 
3826 Group (One Time PROM version)
[CPU Mode Register (CPUM)] 003B16
The CPU mode register contains the stack page selection bit and
the system clock control bits, etc.
The CPU mode register is allocated at address 003B16.
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b7
1
Fig. 8 Structure of CPU mode register
b0
CPU mode register
(CPUM (CM) : address 003B16)
Processor mode bits
b1 b0
0 0 : Single-chip mode
0 1:
1 0 : Do not select
1 1:
Stack page selection bit
0 : 0 page
1 : 1 page
Not used (“1” at reading)
(Write “1” to this bit at writing)
XC switch bit
0 : Oscillation stop
1 : XCIN–XCOUT oscillating function
Main clock (XIN–XOUT) stop bit
0 : Oscillating
1 : Stopped
Main clock division ratio selection bit
0 : f(XIN)/2 (high-speed mode)
1 : f(XIN)/8 (middle-speed mode)
System clock selection bit
0 : XIN–XOUT selected (middle-/high-speed mode)
1 : XCIN–XCOUT selected (low-speed mode)
Rev.1.00 Sep 06, 2006 page 11 of 88
REJ03B0181-0100
11 Page | ||
| Páginas | Total 70 Páginas | |
| PDF Descargar | [ Datasheet M3826.PDF ] | |
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