3822 datasheet(20/328 Pages) RENESAS

20 / 328 page

1-5

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS

3822 Group

Function

• Apply voltage of 2.5 V to 5.5 V to VCC, and 0 V to VSS.

• 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 I/O 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.

• Pull-down control is enabled.

• 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.

• Pull-up control is enabled.

• 4-bit Input port

• CMOS compatible input level

• Pull-down control is enabled.

• 1-bit input pin

• CMOS compatible input level

• 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.

• LCD segment pins

• Key input (key-on wake up) interrupt

input pins

• LCD segment pins

•

φ clock output pin

• Interrupt input pins

• Serial I/O1 function pins

VCC, VSS

VREF

AVSS

RESET

XIN

XOUT

VL1 – VL3

COM0 – COM3

SEG0 – SEG11

P00/SEG16 –

P07/SEG23

P10/SEG24 –

P17/SEG31

P20 – P27

P30/SEG12 –

P37/SEG15

P40

P41/

P42/INT0,

P43/INT1

P44/RXD,

P45/TXD,

P46/SCLK,

P47/SRDY

Name

Power source

Analog reference

voltage

Analog power

source

Reset input

Clock input

Clock output

LCD power source

Common output

Segment output

I/O port P0

I/O port P1

I/O port P2

Input port P3

Input port P4

I/O port P4

Function except a port function

PIN DESCRIPTION

3822 Datasheet(PDF) 20 Page - Renesas Technology Corp

3822 Datasheet(HTML) 20 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL