Datasheet > 4282

4282

更新时间： 2024-01-24 04:37:47

品牌	Logo	应用领域
瑞萨 - RENESAS		计算机
页数	文件大小	规格书
69页	607K
描述
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

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数据手册

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4282 数据手册

4282 Group

REJ03B0084-0133Z

Rev.1.33

SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

2004.03.18

• Timer

DESCRIPTION

Timer 1 ................................................................... 8-bit timer

(This has a reload register and carrier wave output auto-control

function)

Timer 2 ................................................................... 8-bit timer

(This has two reload registers and carrier wave output function)

• Logic operation function (XOR, OR, AND)

• RAM back-up function

The 4282 Group enables fabrication of 8 × 7 key matrix and has

the followin timers;

• an 8-bit timer which can be used to set each carrier wave and

has two reload register

• an 8-bit timer which can be used to auto-control and has a

reload register.

• Key-on wakeup function (ports D4–D7, E0–E2, G0–G3) .... 11

• I/O port (ports D, E, G, CARR) .......................................... 16

• Oscillation circuit ..................................... Ceramic resonance

• Watchdog timer

FEATURES

• Number of basic instructions ............................................. 68

• Minimum instruction execution time ............................ 8.0 µs

(at f(X^IN) = 4.0 MHz, system clock = f(XIN)/8)

• Power-on reset circuit

• Voltage drop detection circuit ......................... Typical:1.50 V

(system reset)

• Supply voltage ................................................. 1.8 V to 3.6 V

• Subroutine nesting ..................................................... 4 levels

APPLICATION

Various remote control transmitters

ROM (PROM) size

RAM size

Part number

Package

ROM type

(× 9 bits)

(× 4 bits)

48 words

64 words

M34282M1-XXXGP

M34282M2-XXXGP

M34282E2GP

1024 words

2048 words

20P2E/F-A

Mask ROM

One Time PROM

PIN CONFIGURATION (TOP VIEW)

VDD

CARR

OUT

Outline 20P2E/F-A

Rev.1.33 Mar 18, 2004 page 1 of 67

12 3 4 5 6 7...69

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