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38B4

Features: • Basic machine-language instructions ....................................... 71• Minimum instruction execution time ................................. 0.48 µs (at 4.2 MHz oscillation frequency)• Memory sizeROM ............................................. 48K to 6...

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SeekIC No. : 004229425 Detail

38B4: Features: • Basic machine-language instructions ....................................... 71• Minimum instruction execution time ................................. 0.48 µs (at 4.2 MHz...

38B4 Data Sheet

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Part Number:
38B4
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• Basic machine-language instructions ....................................... 71
• Minimum instruction execution time ................................. 0.48 µs
                                                    (at 4.2 MHz oscillation frequency)
• Memory size
                       ROM ............................................. 48K to 60K bytes
                       RAM ..........................................1024 to 2048 bytes
• Programmable input/output ports .......................................... 51
• 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

 


Application

Musical instruments, VCR, household appliances, etc


Pinout

Connection Diagram


Specifications

Symbol Parameter Conditions Ratings Unit
VCC Power source voltage All voltages are
based on VSS.
Output transistors
are cut off.		 0.3 to 6.5 V
VEE Pull-down power source voltage VCC 45 to VCC +0.3 (Note1) V
VCC 42 to VCC +0.3 (Note2)
V Input voltage P47, P50P57, P61P65, P70P77, P84P87, P90,P91 0.3 to VCC +0.3 V
VI Input voltage P40P46, P60 0.3 to 13 V
VI Input voltage P00P07, P20P27, P80P83 VCC 45 to VCC +0.3 (Note1) V
VCC 42 to VCC +0.3 (Note2)
VI nput voltage RESET, XIN 0.3 to VCC +0.3 V
VI nput voltage XCIN 0.3 to VCC +0.3 V
VI Output voltage P00P07, P10P17, P20P27,P30P37, P80P83 VCC 45 to VCC +0.3 (Note1) V
VCC 42 to VCC +0.3 (Note2)
VO Output voltage P50P57, P61P65, P70P77,P84P87, P90, P91, XOUT,
XCOUT		 0.3 to VCC +0.3 V
VO Output voltage P40P46, P60 0.3 to 13 V
VO Power dissipation Ta = 20 to 65 °C 800 mW
Pd Operating temperature Ta = 65 to 85 °C 800 12.5 5 (Ta 65) mW
Topr     20 to 85 °C
Tstg Storage temperature   40 to 125 °C



Description

The 38B4 group is the 8-bit microcomputer based on the 740 family core technology.

The 38B4 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.




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