38B5 Group Selling Leads, Price trend, 38B5 Group DataSheet download, circuit diagram from SeekIC.com

Features: • Basic machine-language instructions ....................................... 71• The minimum instruction execution time .......................... 0.48 s(at 4.19 MHz oscillation frequency)• Memory size ROM............................................. 24K to 60K bytes R...

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SeekIC No. : 004229427 Detail

38B5 Group: Features: • Basic machine-language instructions ....................................... 71• The minimum instruction execution time .......................... 0.48 s(at 4.19 MHz oscillati...

38B5 Group Data Sheet

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Part Number:: 38B5 Group
Supply Ability:: 5000

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Product Details

Description

Features:

• Basic machine-language instructions ....................................... 71
• The minimum instruction execution time .......................... 0.48 s
(at 4.19 MHz oscillation frequency)
• Memory size
                         ROM............................................. 24K to 60K bytes
                        RAM ............................................ 512 to 2048 bytes
• Programmable input/output ports ............................................. 55
• High-breakdown-voltage output ports ...................................... 36
• Software pull-up resistors(Ports P5, P61 to P65, P7, P84 to P87, P9)
• Interrupts .................................................. 21 sources, 16 vectors
• Timers ........................................................... 8-bit 5 6, 16-bit 5 1
• Serial I/O1 (Clock-synchronized) .................................... 8-bit 5 1
             ...................... (max. 256-byte automatic transfer function)
• Serial I/O2 (UART or Clock-synchronized) ..................... 8-bit 5 1
• PWM ............................................................................. 14-bit 5 1
8-bit 5 1 (also functions as timer 6)
• A-D converter .............................................. 10-bit 5 12 channels
• Fluorescent display function ........................ Total 40 control pins
• Interrupt interval determination function .....................................1
• Watchdog timer ............................................................. 20-bit 5 1
• Buzzer output ............................................................................. 1
• 2 Clock generating circuit
Main clock (XINXOUT) ......................... Internal feedback resistor
Sub-clock (XCINXCOUT) ......... Without internal feedback resistor
(connect to external ceramic resonator or quartz-crystal oscillator)
• Power source voltage
In high-speed mode ................................................... 4.0 to 5.5 V
(at 4.19 MHz oscillation frequency and high-speed selected)
In middle-speed mode ............................................... 2.7 to 5.5 V
(at 4.19 MHz oscillation frequency and middle-speed selected)
In low-speed mode .................................................... 2.7 to 5.5 V
(at 32 kHz oscillation frequency and low-speed selected)
• Power dissipation
In high-speed mode .......................................................... 35 mW
(at 4.19 MHz oscillation frequency)
In low-speed mode ............................................................ 60 W
(at 32 kHz oscillation frequency, at 3 V power source voltage)
• Operating temperature range ...............................20 to 85 °C

Application

Musical instruments, VCR, household appliances, etc.

Pinout

Connection Diagram

Specifications

Symbol	Parameter	Conditions	Ratings	Unit
V_CC	Power source voltage	All voltages are based on VSS. Output transistors are cut off.	0.3 to 7.0	V
V_EE	Pull-down power source voltage		VCC 45 to VCC +0.3	V
V_I	Input voltage P47, P50P57, P61P65, P70 P77, P84P87, P90, P91		0.3 to VCC +0.3	V
V_I	Input voltage P40P46, P60		0.3 to 13	V
V_I	Input voltage P00P07, P20P27, P80P83		VCC 45 to VCC +0.3	V
V_I	Input voltage RESET, XIN		0.3 to VCC +0.3	V
V_I	Input voltage XCIN		0.3 to VCC +0.3	V
V_O	Output voltage P00P07, P10P17, P20P27, P30P37, P80P83		VCC 45 to VCC +0.3	V
V_O	Output voltage P50P57, P61P65, P70P77, P84P87, P90, P91, XOUT, XCOUT		0.3 to VCC +0.3	V
V_O	Output voltage P40P46, P60		0.3 to 13	V
P_d	Power dissipation		600	mW
T_opr	Operating temperature		20 to 85
T_stg	Storage temperature		40 to 125

Description

The 38B5 Group is the 8-bit microcomputer based on the 740 family core technology.

The 38B5 Group has six 8-bit timers, a 16-bit timer, a fluorescent display automatic display circuit, 12-channel 10-bit A-D converter, a serial I/O with automatic transfer function, which are available for controlling musical instruments and household appliances.

The 38B5 Group has variations of internal memory size and packaging.For details, refer to the section on part numbering.

For details on availability of microcomputers in the 38B5 Group, refer to the section on group expansion.

38B5 Group

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