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3851 Schematic ( PDF Datasheet ) - Renesas

Teilenummer 3851
Beschreibung SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Hersteller Renesas
Logo Renesas Logo 




Gesamt 30 Seiten
3851 Datasheet, Funktion
3851 Group (Built-in 24 KB or more ROM)
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
REJ03B0066-0101Z
Rev.1.01
Oct 15, 2003
DESCRIPTION
The 3851 group (built-in 24 KB or more ROM) is the 8-bit micro-
computer based on the 740 family core technology.
The 3851 group (built-in 24 KB or more ROM) is designed for the
household products and office automation equipment and includes
serial I/O functions, 8-bit timer, I2C-BUS interface, and A-D con-
verter.
FEATURES
Basic machine-language instructions ..................................... 71
Minimum instruction execution time ................................. 0.5 µs
(at 8 MHz oscillation frequency)
Memory size
ROM ................................................................ 24K to 32K bytes
RAM .................................................................... 640 to 1K bytes
Programmable input/output ports ........................................... 34
Interrupts ................................................ 17 sources, 16 vectors
Timers ............................................................................ 8-bit X 4
Serial I/O1 .................... 8-bit X 1(UART or Clock-synchronized)
Serial I/O2 ................................... 8-bit X 1(Clock-synchronized)
Multi-master I2C-BUS interface .................................. 1 channel
PWM .............................................................................. 8-bit X 1
A-D converter ............................................... 10-bit X 5 channels
Watchdog timer ........................................................... 16-bit X 1
Clock generating circuit ................................... Built-in 2 circuits
(connect to external ceramic resonator or quartz-crystal oscillator)
Power source voltage
In high-speed mode ................................................. 4.0 to 5.5 V
(at 8 MHz oscillation frequency)
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)
Power dissipation
In high-speed mode ......................................................... 34 mW
(at 8 MHz oscillation frequency, at 5 V power source voltage)
In low-speed mode
Except M38517F8FP/SP ................................................. 60 µW
M38517F8FP/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)
VCC
VREF
AVSS
P44/INT3/PWM
P43/INT2/SCMP2
P42/INT1
P41/INT0
P40/CNTR1
P27/CNTR0/SRDY1
P26/SCLK1
P25/SCL2/TxD
P24/SDA2/RxD
P23/SCL1
P22/SDA1
CNVSS
P21/XCIN
P20/XCOUT
RESET
XIN
XOUT
VSS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
42 P30/AN0
41 P31/AN1
40 P32/AN2
39 P33/AN3
38 P34/AN4
37 P00/SIN2
36 P01/SOUT2
35 P02/SCLK2
34 P03/SRDY2
33 P04
32 P05
31 P06
30 P07
29 P10/(LED0)
28 P11/(LED1)
27 P12/(LED2)
26 P13/(LED3)
25 P14/(LED4)
24 P15/(LED5)
23 P16/(LED6)
22 P17/(LED7)
Package type : FP ........................... 42P2R-A/E (42-pin plastic-molded SSOP)
Package type : SP ........................... 42P4B (42-pin plastic-molded SDIP)
Fig. 1 M38517M8-XXXFP/SP pin configuration
Rev.1.01 Oct 15, 2003 page 1 of 89






3851 Datasheet, Funktion
3851 Group (Built-in 24 KB or more ROM)
Currently planning products are listed below.
Table 2 Support products
Product name
M38514M6-XXXSP
M38514E6-XXXSP
M38514E6SP
M38514E6SS
M38514M6-XXXFP
M38514E6-XXXFP
M38514E6FP
ROM size (bytes)
ROM size for User in ( )
24576
(24446)
RAM size (bytes) Package
Remarks
Mask ROM version
42P4B One Time PROM version
One Time PROM version (blank)
640 42S1B-A EPROM version
Mask ROM version
42P2R-A/E One Time PROM version
One Time PROM version (blank)
Table 3 3851 group (built-in 16 KB ROM) and 3851 group (built-in 24 KB or
more ROM) corresponding products
3851 group (built-in 16 KB ROM)
3851 group (built-in 24 KB or more ROM)
M38513M4-XXXFP/SP
M38514M6-XXXFP/SP
M38513E4-XXXFP/SP
M38514E6-XXXFP/SP
M38513E4FP/SP
M38514E6FP/SP
M38513E4SS
M38514E6SS
M38517M8-XXXFP/SP
M38517F8FP/SP
Table 4 Differences between 3851 group (built-in 16 KB ROM) and 3851 group (built-in 24 KB or more ROM)
3851 group (built-in 16 KB ROM)
3851 group (built-in 24 KB or more ROM)
Serial I/O
1: Serial I/O
2: Serial I/O1 (UART or Clock-synchronized)
(UART or Clock-synchronized)
Serial I/O2 (Clock-synchronized)
A-D converter
Unserviceable in low-speed mode
Serviceable in low-speed mode
Large current port
5: P13P17
8: P10P17
Notes on differences between 3851 group
(built-in 16 KB ROM), 3851 group (built-in 24
KB or more ROM)
(1) The absolute maximum ratings of 3851 group (built-in 24 KB or
more ROM) is smaller than that of 3851 group (built-in 16 KB
ROM).
Power source voltage Vcc = 0.3 to 6.5 V
CNVss input voltage
VI = 0.3 to Vcc +0.3 V (M38514M6, M38517M8)
VI = 0.3 to 6.5 V (M38517F8)
(2) The oscillation circuit constants of XIN-XOUT, XCIN-XCOUT may
be some differences between 3851 group (built-in 16 KB
ROM) and 3851 group (built-in 24 KB or more ROM).
(3) Do not write any data to the reserved area and the reserved
bit. (Do not change the contents after reset.)
(4) Fix bit 3 of the CPU mode register to 1.
(5) Be sure to perform the termination of unused pins.
Rev.1.01 Oct 15, 2003 page 6 of 89

6 Page









3851 pdf, datenblatt
3851 Group (Built-in 24 KB or more ROM)
000016 Port P0 (P0)
000116 Port P0 direction register (P0D)
000216 Port P1 (P1)
000316 Port P1 direction register (P1D)
000416 Port P2 (P2)
000516 Port P2 direction register (P2D)
000616 Port P3 (P3)
000716 Port P3 direction register (P3D)
000816 Port P4 (P4)
000916 Port P4 direction register (P4D)
000A16
000B16
000C16
000D16
000E16
000F16
001016
001116
001216 Reserved
001316 Reserved
001416 Reserved
001516 Serial I/O2 control register 1 (SIO2CON1)
001616 Serial I/O2 control register 2 (SIO2CON2)
001716 Serial I/O2 register (SIO2)
001816 Transmit/Receive buffer register (TB/RB)
001916 Serial I/O1 status register (SIOSTS)
001A16 Serial I/O1 control register (SIOCON)
001B16 UART control register (UARTCON)
001C16 Baud rate generator (BRG)
001D16 PWM control register (PWMCON)
001E16 PWM prescaler (PREPWM)
001F16 PWM register (PWM)
002016 Prescaler 12 (PRE12)
002116 Timer 1 (T1)
002216 Timer 2 (T2)
002316 Timer XY mode register (TM)
002416 Prescaler X (PREX)
002516 Timer X (TX)
002616 Prescaler Y (PREY)
002716 Timer Y (TY)
002816 Timer count source selection register (TCSS)
002916
002A16
002B16 I2C data shift register (S0)
002C16 I2C address register (S0D)
002D16 I2C status register (S1)
002E16 I2C control register (S1D)
002F16 I2C clock control register (S2)
003016 I2C start/stop condition control register (S2D)
003116 Reserved
003216
003316
003416
003516
003616
A-D control register (ADCON)
A-D conversion low-order register (ADL)
A-D conversion high-order register (ADH)
003716 Reserved
003816 MISRG
003916 Watchdog timer control register (WDTCON)
003A16 Interrupt edge selection register (INTEDGE)
003B16 CPU mode register (CPUM)
003C16 Interrupt request register 1 (IREQ1)
003D16 Interrupt request register 2 (IREQ2)
003E16 Interrupt control register 1 (ICON1)
003F16 Interrupt control register 2 (ICON2)
0FFD16 Reserved
0FFE16 Flash memory control register 1 (FMCR)
0FFF16 Reserved
Reserved : Do not write any data to this addresses, because these areas are reserved.
Fig. 9 Memory map of special function register (SFR)
Rev.1.01 Oct 15, 2003 page 12 of 89

12 Page





SeitenGesamt 30 Seiten
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