GMS97C1 View Datasheet(PDF) - Hynix Semiconductor

Part Name

Description

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GMS97C1

8-BIT SINGLE-CHIP MICROCONTROLLERS

Hynix Semiconductor 

GMS90 Series

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

I/O

T0

PORT 1

I/O

CPU

8-BIT

USART

T1

PORT 2

I/O

ROM / EPROM

4K × 8

PORT 3

I/O

Oct. 2000 Ver 3.1a

1

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