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M34250M2 Datasheet(Fiches technique) 3 Page - Mitsubishi Electric Semiconductor

Numéro de pièce M34250M2
Description  SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER    
Télécharger  58 Pages
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Fabricant  MITSUBISHI [Mitsubishi Electric Semiconductor]
Site Internet  http://www.mitsubishichips.com
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MITSUBISHI
ELECTRIC
3
MITSUBISHI MICROCOMPUTERS
4250 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
PERFORMANCE OVERVIEW
Function
70
1.0
µs (at 4.0 MHz system clock frequency) (Refer to the electrical characteristics because
the minimum instruction execution time depends on the supply voltage.)
2048 words ! 9 bits
64 words ! 4 bits
Four independent I/O ports; ports D2 and D3 are also used as ports C and K, respectively.
4-bit I/O port
1-bit I/O port; port C is also used as port D2.
1-bit I/O port; port K is also used as port D3.
2-bit I/O port
4-bit I/O port; ports G0 and G1 are also used as pins INT and TOUT.
Interrupt input; INT pin is also used as port G0.
Timer output; TOUT pin is also used as port G1.
8-bit timer with a reload register
2 (one for external and one for timer)
1 level
CR oscillation circuit (a capacitor and a resistor connected externally)
Frequency error:
±17 %
(VDD = 5 V
± 10 %, VDD = 3 V ± 10 %, the error of the external capacitor and resistor excluded)
4 levels
CMOS silicon gate
20-pin plastic molded SOP (20P2N-A)
–20
°C to 85 °C
2.2 V to 5.5 V (Refer to the electrical characteristics because the supply voltage depends on
the system clock frequency.)
1.5 mA
(at 4.0 MHz system clock frequency, VDD = 5 V, output transistors in the cut-off state)
0.1
µA (at room temperature, VDD = 5 V, output transistors in the cut-off state)
Parameter
Number of basic instructions
Minimum instruction execution time
Memory sizes
Input/Output
ports
Timer
Interrupt
Oscillation circuit
Subroutine nesting
Device structure
Package
Operating temperature range
Supply voltage
Power
dissipation
(typical value)
ROM
RAM
D0–D3
S0–S3
C
K
F0, F1
G0–G3
INT
TOUT
Timer 1
Sources
Nesting
Active mode
RAM back-up mode
M34250M2/
E2
I/O
I/O
I/O
I/O
I/O
I/O
Input
Output




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