3822 Datasheet, PDF (1/59 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

3822 Group (A ver.)
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
REJ03B0076-0120Z
Rev.1.20
2003.12.24
DESCRIPTION
The 3822 group (A version) is the 8-bit microcomputer based on
the 740 family core technology.
The 3822 group (A version) has the LCD drive control circuit, an 8-
channel A-D converter, and a serial I/O as additional functions.
The various microcomputers in the 3822 group (A version) include
variations of internal memory size and packaging. For details, re-
fer to the section on part numbering.
FEATURES
●Basic machine-language instructions ...................................... 71
●The minimum instruction execution time ........................... 0.4 µs
(at f(XIN) = 10 MHz, High-speed mode)
●Memory size
ROM ............................................................... 16 K to 48 K bytes
RAM ................................................................. 512 to 1024 bytes
●Programmable input/output ports ............................................ 49
●Software pull-up/pull-down resistors (Ports P0-P7 except port P40)
●Interrupts ................................................. 17 sources, 16 vectors
(includes key input interrupt)
●Timers ........................................................... 8-bit ✕ 3, 16-bit ✕ 2
●Serial I/O ...................... 8-bit ✕ 1 (UART or Clock-synchronized)
●A-D converter ................................................. 8-bit ✕ 8 channels
●LCD drive control circuit
Bias ................................................................................... 1/2, 1/3
Duty ........................................................................... 1/2, 1/3, 1/4
Common output .......................................................................... 4
Segment output ........................................................................ 32
●2 clock generating circuits
(connect to external ceramic resonator or quartz-crystal oscillator)
●Power source voltage
In high-speed mode
(at f(XIN) ≤ 10 MHz) ................................................... 4.5 to 5.5 V
(at f(XIN) ≤ 8 MHz) ..................................................... 4.0 to 5.5 V
In middle-speed mode (at f(XIN) ≤ 6 MHz) ............... 1.8 to 5.5 V
In low-speed mode .................................................... 1.8 to 5.5 V
●Power dissipation
In high-speed mode ................................................ 15 mW (std.)
(at f(XIN) = 8 MHz, Vcc = 5 V, Ta = 25 °C)
In low-speed mode ................................................... 24 µW (std.)
(at f(XIN) stopped, f(XCIN) = 32 kHz, Vcc = 3 V, Ta = 25 °C)
●Operating temperature range .................................. – 20 to 85 °C
APPLICATIONS
Camera, household appliances, consumer electronics, etc.
PIN CONFIGURATION (TOP VIEW)
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
VCC
VREF
AVSS
COM3
COM2
COM1
COM0
VL3
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41
65
40
66
39
67
38
68
37
69
36
70
35
71
34
72
73
M3822XMXA-XXXFP
33
32
74
31
75
30
76
29
77
28
78
27
79
26
80
25
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
P20
P21
P22
P23
P24
P25
P26
P27
VSS
XOUT
XIN
P70/XCOUT
P71/XCIN
RESET
P40
P41/φ
Package type : 80P6N-A (80-pin plastic-molded QFP)
Fig. 1 M3822XMXA-XXXFP pin configuration
Rev.1.20 Dec 24, 2003 page 1 of 57