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M34280M1 Datasheet(PDF) 1 Page - Mitsubishi Electric Semiconductor

Part No. M34280M1
Description  SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS
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Manufacturer  MITSUBISHI [Mitsubishi Electric Semiconductor]
Direct Link  http://www.mitsubishichips.com
Logo MITSUBISHI - Mitsubishi Electric Semiconductor

M34280M1 Datasheet(HTML) 1 Page - Mitsubishi Electric Semiconductor

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background image
ROM type
Mask ROM
Mask ROM
One Time PROM
One Time PROM
Package
20P2N-A
20P2E/F-A
20P2N-A
20P2E/F-A
RAM size
(
× 4 bits)
32 words
32 words
32 words
32 words
PIN CONFIGURATION (TOP VIEW)
M34280M1-XXXFP/GP
ROM (PROM) size
(
× 9 bits)
1024 words
1024 words
1024 words
1024 words
Product
M34280M1-XXXFP
M34280M1-XXXGP
M34280E1FP
M34280E1GP
DESCRIPTION
The 4280 Group is a 4-bit single-chip microcomputer designed
with CMOS technology for remote control transmitters. The 4280
Group has 7 carrier waves and enables fabrication of 8
× 7 key
matrix.
FEATURES
• Number of basic instructions ............................................. 62
• Minimum instruction execution time ............................ 8.0
µs
(at f(XIN) = 4.0 MHz, system clock = f(XIN)/8, VDD=3.0 V)
• Supply voltage ................................................. 1.8 V to 3.6 V
• Subroutine nesting ..................................................... 4 levels
• Timer
Timer 1 ................................................................... 8-bit timer
with a reload register and carrier wave output auto-control
function
• Carrier wave output function (port CARR)
f(XIN), f(XIN)/4, f(XIN)/8, f(XIN)/12
f(XIN)/64, f(XIN)/96, “H” output fixed
• Logic operation function (XOR, OR, AND)
• RAM back-up function
• Key-on wakeup function (ports D7, E0–E2, G0–G3) ............. 8
• I/O port (ports D, E, G, CARR) .......................................... 16
• Oscillation circuit ..................................... Ceramic resonance
• Watchdog timer
• Power-on reset circuit
• Voltage drop detection circuit ......................... Typical:1.50 V
APPLICATION
Various remote control transmitters
4280 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS
MITSUBISHI MICROCOMPUTERS
VSS
2
3
4
5
6
7
8
9
10
1
19
18
17
16
15
14
13
12
11
20
D7
D2
D3
D4
D5
D1
D0
CARR
VDD
D6
E2
G3
G2
E0
E1
XIN
XOUT
G0
G1
Outline 20P2N-A
20P2E/F-A


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