GMS90C320 Datasheet, PDF (5/46 Pages) Hynix Semiconductor – HYNIX SEMICONDUCTOR INC. 8-BIT SINGLE-CHIP MICROCONTROLLERS

GMS90C320
GMS90C320/L320
CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
ROM-less Version for 90C52
Operating Voltage (V) Device Name
4.25~5.5
2.7~5.5
GMS90C320
GMS90L320
ROM
ROM-less
ROM-less
RAM
256 × 8bit
256 × 8bit
Features
• Fully compatible to standard MCS-51 microcontroller
• Versions for 40/50 MHz operating frequency
• Low voltage version for 24MHz operating frequency
• 256 bytes of on-chip data RAM
• 64K external program memory space
• 64K external data memory space
• Four 8-bit ports
• Three 16-bit Timers/Counters (Timer 2 with up/down counter feature)
• USART
• Six interrupt sources, two priority levels
• Power saving Idle and power down mode
• 2.7Volt low voltage version available
• P-DIP-40, P-LCC-44, P-MQFP-44 package
Operating
Frequency (MHz)
40/50
24
RAM
256 x 8
PORT0
I/O
T0
T2
CPU
PORT1
8-BIT
I/O
USART
T1
PORT2
I/O
ROM-less
PORT3
I/O
The GMS90C320 described in this document is compatible with the standard 80C32 can be used for all present standard
80C32 applications.
OCT. 2000 Ver 1.2
1