MITSUBISHI MICROCOMPUTERS
3850 Group (Spec. H)
ꢀThis data sheet describes Spec. H and Spec. A of 3850 Group. The header of each
page shows which specification is explained in the page. The page explaining about
both specifications shows the header of “Spec. H/A”.
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
ꢀClock generating circuit..................................... Built-in 2 circuits
(connect to external ceramic resonator or quartz-crystal oscillator)
ꢀPower source voltage
DESCRIPTION
The 3850 group (spec. H) is the 8-bit microcomputer based on the
740 family core technology.
In high-speed mode .................................................. 4.0 to 5.5 V
(at 8 MHz oscillation frequency)
The 3850 group (spec. H) is designed for the household products
and office automation equipment and includes serial I/O functions,
8-bit timer, and A-D converter.
In middle-speed mode............................................... 2.7 to 5.5 V
(at 8 MHz oscillation frequency)
In low-speed mode .................................................... 2.7 to 5.5 V
(at 32 kHz oscillation frequency)
FEATURES
ꢀBasic machine-language instructions ...................................... 71
ꢀMinimum instruction execution time .................................. 0.5 µs
(at 8 MHz oscillation frequency)
ꢀPower dissipation
In high-speed mode ..........................................................34 mW
(at 8 MHz oscillation frequency, at 5 V power source voltage)
In low-speed mode
ꢀMemory size
ROM ................................................................... 8K to 32K bytes
RAM ................................................................. 512 to 1024 bytes
ꢀProgrammable input/output ports ............................................ 34
ꢀInterrupts ................................................. 15 sources, 14 vectors
ꢀTimers ............................................................................. 8-bit ꢀ 4
ꢀSerial I/O1 .................... 8-bit ꢀ 1(UART or Clock-synchronized)
ꢀSerial I/O2 ................................... 8-bit ꢀ 1(Clock-synchronized)
ꢀPWM ............................................................................... 8-bit ꢀ 1
ꢀA-D converter ............................................... 10-bit ꢀ 5 channels
ꢀWatchdog timer ............................................................ 16-bit ꢀ 1
Except M38507F8FP/SP................................................... 60 µW
M38507F8FP/SP ............................................................. 450 µW
(at 32 kHz oscillation frequency, at 3 V power source voltage)
ꢀOperating temperature range....................................–20 to 85°C
APPLICATION
Office automation equipment, FA equipment, Household products,
Consumer electronics, etc.
PIN CONFIGURATION (TOP VIEW)
P3
P3
P3
P3
P3
P0
P0
P0
P0
P0
P0
P0
P0
P1
P1
P1
P1
P1
P1
P1
P1
0
1
2
3
4
/AN
/AN
/AN
/AN
/AN
0
1
2
3
4
V
CC
1
2
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
V
REF
AVSS
/PWM
2/SCMP2
/INT
/INT
3
P4
4
/INT
/INT
P4
P4
P4
/CNTR
P2
P2
P2
3
4
P4
3
5
2
1
0
1
0/SIN2
6
1
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
/SOUT2
/SCLK2
/SRDY2
7
0
/CNTR
/SRDY1
8
P2
7
0
9
6
/SCLK
/TxD
/RxD
P2
P2
10
11
12
13
14
15
16
17
18
19
20
21
5
4
3
2
/(LED
/(LED
/(LED
/(LED
/(LED
/(LED
/(LED
/(LED
0)
1)
2)
3)
4)
5)
6)
7)
CNVSS
P2 /XCIN
P2 /XCOUT
V
PP
1
0
RESET
X
IN
OUT
SS
X
V
: Flash memory version
Package type : FP ........................... 42P2R-A/E (42-pin plastic-molded SSOP)
Package type : SP ........................... 42P4B (42-pin plastic-molded SDIP)
Fig. 1 M38503MXH-XXXFP/SP pin configuration (spec. H)
1