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GMS81C2012 Datasheet(PDF) 1 Page - Hynix Semiconductor |
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GMS81C2012 Datasheet(HTML) 1 Page - Hynix Semiconductor |
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1 / 92 page  Hyundai Micro Electronics GMS81C2020/GMS81C2120 Nov. 1999 Ver 0.0 preliminary 1 GMS81C2020 / GMS81C2120 CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver 1. OVERVIEW 1.1 Description The GMS81C2020 and GMS81C2120 are an advanced CMOS 8-bit microcontroller with 20K/12K bytes of ROM. These are a powerful microcontroller which provides a highly flexible and cost effective solution to many VFD applications. These provide the following standard features: 20K/12K bytes of ROM, 448 bytes of RAM, 8-bit timer/counter, 8-bit A/D convert- er, 10-bit High Speed PWM Output, Programmable Buzzer Driving Port, 8-bit Basic Interval Timer, 7-bit Watch dog Timer, 8-bit, Serial Peripheral Interface, on-chip oscillator and clock circuitry. They also come with high voltage I/O pins that can directly drive a VFD(Vacuum Fluorescent Display). In addition, the GMS81C2020 and GMS81C2120 support power sav- ing modes to reduce power consumption. This document is only explained for the base of GMS81C2020(GMS81C2120), the eliminated functions are same as below. [The * Mark Devices are OTP Version] Device name ROM Size RAM Size Ports Package GMS81C2020 20Kbytes 448bytes R0,R1,R2,R3,R4,R5,R6,R7 64 SDIP, 64MQFP, 64LQFP, 64TQFP GMS81C2012 12Kbytes 448bytes R0,R2,R3,R5,R6 64SDIP, 64MQFP, 64LQFP, 64TQFP *GMS87C2020 20Kbytes (EPROM) 448bytes R0,R1,R2,R3,R4,R5,R6,R7 64SDIP, 64MQFP, 64LQFP, 64TQFP GMS81C2120 20Kbytes 448bytes R0,R1,R2,R3,R4,R5,R6,R7 42SDIP, 44MQFP, 40PDIP GMS81C2112 12Kbytes 448bytes R0,R2,R3,R5,R6 42SDIP, 44MQFP, 40PDIP *GMS87C2120 20Kbytes (EPROM) 448bytes R0,R1,R2,R3,R4,R5,R6,R7 42SDIP, 44MQFP, 40PDIP |
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