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4282 Datasheet(PDF) 1 Page - Renesas Technology Corp |
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4282 Datasheet(HTML) 1 Page - Renesas Technology Corp |
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1 / 69 page  ROM type Mask ROM Mask ROM One Time PROM Package 20P2E/F-A 20P2E/F-A 20P2E/F-A RAM size ( × 4 bits) 48 words 64 words 64 words PIN CONFIGURATION (TOP VIEW) ROM (PROM) size ( × 9 bits) 1024 words 2048 words 2048 words Part number M34282M1-XXXGP M34282M2-XXXGP M34282E2GP DESCRIPTION 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. FEATURES • Number of basic instructions ............................................. 68 • Minimum instruction execution time ............................ 8.0 µs (at f(XIN) = 4.0 MHz, system clock = f(XIN)/8) • Supply voltage ................................................. 1.8 V to 3.6 V • Subroutine nesting ..................................................... 4 levels • Timer 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 • 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 • Power-on reset circuit • Voltage drop detection circuit ......................... Typical:1.50 V (system reset) APPLICATION Various remote control transmitters 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 20P2E/F-A 4282 Group SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER REJ03B0084-0133Z Rev.1.33 2004.03.18 Rev.1.33 Mar 18, 2004 page 1 of 67 |
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