4250 查看數據表（PDF） - MITSUBISHI ELECTRIC
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4250 Datasheet PDF : 58 Pages
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MITSUBISHI MICROCOMPUTERS
4250 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
DESCRIPTION
The 4250 Group is a 4-bit single-chip microcomputer designed
with CMOS technology. Its CPU is that of the 720 series using a
simple instruction set. The computer is equipped with one 8-bit
timer which has a reload register and the interrupt function.
The various microcomputers in the 4250 Group include variations
of the built-in memory type as shown in the table below.
FEATURES
• Minimum instruction execution time ............................. 1.0 µs
(at 4.0 MHz system clock frequency, VDD=4.5 V to 5.5 V)
• Supply voltage
4.5 V to 5.5 V (at 4.0 MHz system clock frequency)
2.5 V to 5.5 V (at 1.0 MHz system clock frequency)
2.2 V to 5.5 V (at 1.0 MHz system clock frequency:
only for Mask ROM version)
• Timer
Timer 1 ................................ 8-bit timer with a reload register
• Interrupt ................................................................... 2 sources
• CR oscillation circuit (Capacitor and Resistor connected
externally)
• Logic operation instruction
• RAM back-up function
• Key-on wakeup function (ports G and S, INT pin)
APPLICATION
Electric household appliances, consumer electronics products
(mouse, etc.)
Product
ROM (PROM) size
(! 9 bits)
M34250M2-XXXFP
2048 words
M34250E2-XXXFP *
2048 words
*: Shipped after writing (shipped in blank: M34250E2FP)
RAM size
(! 4 bits)
64 words
64 words
Package
20P2N-A
20P2N-A
ROM type
Mask ROM
One Time PROM
PIN CONFIGURATION (TOP VIEW)
M34250M2-XXXFP
VD D
1
VSS
2
XIN
3
XOUT
4
CNVSS
5
RESET
6
F0
7
F1
8
G0/INT
9
G1/TOUT
10
20
D0
19
D1
18
D2/C
17
D3/K
16
S0
15
S1
14
S2
13
S3
12
G3
11
G2
Outline 20P2N-A
MITSUBISHI
ELECTRIC
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