1. TABLE 1 : GMS77C1000/77C1001 8-bit RISC MCU Feature List
Hyundai Electronics Industries Co., Ltd.
NEW PRODUCT ANNOUNCEMENT
GMS77C1000 / 77C1001
8-BIT CMOS SINGLE CHIP MICROCONTROLLER
INTRODUCTION :
HEI is proud to extend its Microcontroller Product line offerings by introducing
the GMS77C1000/77C bit CMOS RISC Microcontrollers(MCUs).
These 8-bit Microcontrollers are available in 18PDIP/SOP and 20SSOP. Also
these are the small Mask Product which have 0.5K / 1K ROM on chip.
WHAT IS IT?
These 8-bit Microcontrollers are function entirely compatible with Microchip`s
PIC16C54/16C56 and can be adopted for Low-End / Low-Price / Small Quantity
/ Many kinds of Model / Quick T.A.T application.
The following chart outlines the rich features offered by HEI`s 8-bit MCUs.
TABLE 1 : GMS77C1000/77C bit RISC MCU Feature List
Items
GMS77C1000 / 77C1001
EPROM
RAM
Instruction Execution Time
I/O Ports
Instructions Number
Timer/Counter
Watch Dog Timer
Operating Freq.
Operating Voltage
PKG
Others
512 x 12bit / 1,024 x 12bit
25 Bytes
200ns
12 I/O 33
8bit×1ch
16bit×1ch
1 ~ 20MHz
2.5~5.5V
18PDIP/SOP, 20SSOP
Power Fail Detector (2Level: 3.0V, 2.3V)
High Speed Operation
Internal Reset Timer : 18ms

2. TABLE 2 : GMS77C1000/77C1001 Competition Information
WHAT IS THE COMPETITION?
The attached comparison table(TABLE 2) highlights 8-bit MCUs that are
same as GMS77C1000/77C1001. Function and instruction of GMS77C1000/
77C1001 are entirely compatible to MICROCHIP PIC16C54/16C56.
So many MCUs are designed for specific application, you can run into design
with GMS77C1000/77C1001. And GMS77C1000/77C1001 have more strong
point in solution against noise comparing with MICROCHIP PIC series.
TABLE 2 : GMS77C1000/77C1001 Competition Information
Items
HEI
GMS77C1000/77C1001
MICROCHIP
PIC16C54/16C56
EPROM
RAM
I/O Ports
Instructions Number
Timer/Counter
Watch Dog Timer
Operating Freq.
Operating Voltage
PKG
512 x 12bit / 1,024 x 12bit
25 Bytes
12 I/O 33
8bit×1ch
16bit×1ch
1 ~ 20MHz
2.5~5.5V
18PDIP/SOP, 20SSOP
512 x 12bit / 1,024 x 12bit
25 Bytes
12 I/O 33
8bit×1ch
16bit×1ch
1 ~ 20MHz
2.5~5.5V
18PDIP/SOP, 20SSOP

3. WHO USES IT? AVAILABILITY : SALES STRATEGY :
HEI`s 8-bit Microcontrollers(GMS77C1000/1001) can be used in a
wide range of small general purpose and consumer application.
Key applications include the following areas.
◎ Low-End / Low-Price / Small Quantity / Many kinds of Model
◎ Small general purpose & Consumer application
Hands free kit / Alarm / Security system / Fan Controller / Toy /
Rice Cooker / Booster / Temperature Controller / Motor Controller /
Clean water equipment / Power meter, etc.
AVAILABILITY :
GMS77C1000 / 77C1001
Data Sheets Under Preparation(End of May. ,2000)
Customer Samples Now
Mass Production Now
Orders Taken Now
Lead Time WEEKS (Quick TAT) : Stock Sale
8 WEEKS : After Other Taken
SALES STRATEGY :
Sales strategy for HEI`s 8-bit MCUs can be summarised as follows :
Target all manufacturers currently producing small general purpose and
consumer applications especially using MICROCHIP PIC series
HEI will have great low-end OTP product lines along with our own
800 series
Meet customer`s requirement ( Price, Quick TAT, etc. )