3850 Group (Spec.A)
REJ03B0093-0210
Rev.2.10
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Nov 14, 2005
ꢀClock generating circuit..................................... Built-in 2 circuits
(connect to external ceramic resonator or quartz-crystal oscillator)
ꢀPower source voltage
DESCRIPTION
The 3850 group (spec. A) is the 8-bit microcomputer based on the
740 family core technology.
In high-speed mode .................................................. 4.0 to 5.5 V
(at 12.5 MHz oscillation frequency)
The 3850 group (spec. A) is designed for the household products
and office automation equipment and includes serial interface
functions, 8-bit timer, and A/D converter.
In high-speed mode .................................................. 2.7 to 5.5 V
(at 6 MHz oscillation frequency)
In middle-speed mode............................................... 2.7 to 5.5 V
(at 12.5 MHz oscillation frequency)
FEATURES
ꢀBasic machine-language instructions ...................................... 71
ꢀMinimum instruction execution time ................................ 0.32 µs
(at 12.5 MHz oscillation frequency)
In low-speed mode .................................................... 2.7 to 5.5 V
(at 32 kHz oscillation frequency)
ꢀPower dissipation
ꢀMemory size
In high-speed mode
ROM ................................................................... 8K to 32K bytes
RAM .....................................................................512 to 1K bytes
ꢀProgrammable input/output ports ............................................ 34
ꢀOn-chip software pull-up resistor
Except M38507F8AFP/SP ............................................. 32.5mW
M38507F8AFP/SP ......................................................... 37.5mW
(at 12.5 MHz oscillation frequency, at 5 V power source voltage)
In low-speed mode
ꢀInterrupts ................................................. 15 sources, 14 vectors
ꢀTimers ............................................................................. 8-bit ꢀ 4
ꢀSerial interface
Except M38507F8AFP/SP ................................................ 60 µW
M38507F8AFP/SP .......................................................... 450 µW
(at 32 kHz oscillation frequency, at 3 V power source voltage)
ꢀOperating temperature range....................................–20 to 85°C
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 ꢀ 9 channels
ꢀWatchdog timer ............................................................ 16-bit ꢀ 1
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
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
/CNTR
/SRDY1
/SCLK1
/TxD
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
/SOUT2
/SCLK2
/SRDY2
/AN
/AN
7
0
8
P2
7
0
9
6
5
10
11
12
13
14
15
16
17
18
19
20
21
5
6
4
/RxD
P2
P2
P0
6
/AN
7
3
2
P0
P1
P1
P1
P1
P1
P1
P1
P1
7
0
1
2
3
4
5
6
7
/AN
8
(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 ........................... PRSP0042GA-B (42P2R-A/E) (42-pin plastic-molded SSOP)
Package type : SP ........................... PRDP0042BA-A (42P4B) (42-pin plastic-molded SDIP)
Fig. 1 M3850XMXA-XXXFP/SP pin configuration
Rev.2.10 2005.11.14 page 1 of 86
REJ03B0093-0210