GMS90C51 datasheet(5/59 Pages) HYNIX

Part #	GMS90C51

Description	8-BIT SINGLE-CHIP MICROCONTROLLERS

PDF	59 Pages

Scroll/Zoom	100%

Manufacturer	HYNIX [Hynix Semiconductor]

Direct Link	http://www.skhynix.com/kor/main.do

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5 / 59 page

GMS90 Series

Dec. 1998 Ver 3.0

GMS90C31/51, 97C51

GMS90L31/51, 97L51 (Low voltage versions)

• Fully compatible to standard MCS-51 microcontroller

• Wide operating frequency up to 40MHz (for more detail, see “GMS90 Series Selection Guide”)

•4K

× 8 (EP)ROM

• 128

× 8 RAM

• 64K external program memory space

• 64K external data memory space

• Four 8-bit ports

• Two 16-bit Timers / Counters

• USART

• Five interrupt sources, two priority levels

• Power saving Idle and power down mode

• Quick pulse programming algorithm (in the OTP devices)

• 2-level program memory lock (in the OTP devices)

• 2.7Volt low voltage version available

• P-DIP-40, P-LCC-44, P-MQFP-44 package

Block Diagram

RAM

128

× 8

PORT 0

PORT 1

PORT 3

PORT 2

8-BIT

USART

ROM / EPROM

× 8

CPU

T 0

T 1

I/O

GMS90C51 Datasheet(PDF) 5 Page - Hynix Semiconductor