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PDF M3822x Data sheet ( Hoja de datos )
| Número de pieza | M3822x | |
| Descripción | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER | |
| Fabricantes | Renesas | |
| Logotipo |  |
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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.
Renesas Technology Corp.
Customer Support Dept.
April 1, 2003
1 page  
MITSUBISHI MICROCOMPUTERS
3822 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
PIN DESCRIPTION
Table 1 Pin description (1)
Pin
VCC, VSS
VREF
AVSS
RESET
XIN
Name
Power source
Analog refer-
ence voltage
Analog power
source
Reset input
Clock input
XOUT
Clock output
VL1–VL3
LCD power
source
COM0–COM3 Common output
SEG0–SEG11 Segment output
P00/SEG16– I/O port P0
P07/SEG23
P10/SEG24– I/O port P1
P17/SEG31
P20 – P27 I/O port P2
P34/SEG12 – Input port P3
P37/SEG15
Function
Function except a port function
•Apply voltage of power source to VCC, and 0 V to VSS. (For the limits of VCC, refer to “Recom-
mended operating conditions”).
•Reference voltage input pin for A-D converter.
•GND input pin for A-D converter.
•Connect to VSS.
•Reset input pin for active “L”.
•Input and output pins for the main clock generating circuit.
•Feedback resistor is built in between XIN pin and XOUT pin.
•Connect a ceramic resonator or a 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.
•This clock is used as the oscillating source of system clock.
•Input 0 ≤ VL1 ≤ VL2 ≤ VL3 ≤ VCC voltage.
•Input 0 – VL3 voltage to LCD.
•LCD common output pins.
•COM2 and COM3 are not used at 1/2 duty ratio.
•COM3 is not used at 1/3 duty ratio.
•LCD segment output pins.
•8-bit output port.
•CMOS compatible input level.
•CMOS 3-state output structure.
•I/O direction register allows each port to be individually
programmed as either input or output.
•LCD segment output pins
•Pull-down control is enabled.
•8-bit I/O port.
•CMOS compatible input level.
•Key input (key-on wake-up) interrupt
input pins
•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.
•4-bit input port.
•LCD segment output pins
•CMOS compatible input level.
•Pull-down control is enabled.
4
5 Page 
MITSUBISHI MICROCOMPUTERS
3822 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
GROUP EXPANSION (H VERSION)
Mitsubishi plans to expand the 3822 group (H version) as follows:
Memory Type
Support for Mask ROM version.
Memory Size
ROM size ........................................................... 16 K to 48 K bytes
RAM size ............................................................ 512 to 1024 bytes
Package
80P6N-A .................................... 0.8 mm-pitch plastic molded QFP
80P6Q-A .................................... 0.5 mm-pitch plastic molded QFP
Memory Expansion Plan
ROM size (bytes)
48K
32K
28K
24K
20K
16K
12K
8K
4K
Mass product
M38227MCH
Mass product
M38227M8H
Mass product
M38224M6H
Mass product
M38223M4H
192 256 384 512 640 768 896 1024
RAM size (bytes)
Fig. 8 Memory expansion plan for H version
Currently products are listed below.
Table 6 List of products for H version
Product
ROM size (bytes) ROM
size for User in ( )
M38223M4HXXXFP
M38223M4HXXXHP
M38224M6HXXXFP
M38224M6HXXXHP
M38227M8HXXXFP
M38227M8HXXXHP
M38227MCHXXXFP
M38227MCHXXXHP
16384
(16254)
24576
(24446)
32768
(32638)
49152
(49022)
RAM size (bytes)
512
640
1024
Package
Remarks
80P6N-A
80P6Q-A
80P6N-A
80P6Q-A
80P6N-A
80P6Q-A
80P6N-A
80P6Q-A
Mask ROM version
Mask ROM version
Mask ROM version
Mask ROM version
Mask ROM version
Mask ROM version
Mask ROM version
Mask ROM version
As of Feb. 2002
10
11 Page | ||
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| PDF Descargar | [ Datasheet M3822x.PDF ] | |
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