GMS87C1404 View Datasheet(PDF) - Hyundai Micro Electronics

Part Name

Description

View to exact match

GMS87C1404

CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER

Hyundai Micro Electronics 

HYUNDAI MicroElectronics

GMS87C1404/GMS87C1408

7.5 AC Characteristics

(TA=-20~+85°C, VDD=5V±10%, VSS=0V)

Parameter

Operating Frequency

External Clock Pulse Width

External Clock Transition Time

Oscillation Stabilizing Time

External Input Pulse Width

External Input Pulse Transi-

tion Time

RESET Input Width

Symbol

fCP

tCPW

tRCP,tFCP

tST

tEPW

tREP,tFEP

tRST

Pins

XIN

XIN

XIN

XIN, XOUT

INT0, INT1, INT2, INT3

EC0, EC1

INT0, INT1, INT2, INT3

EC0, EC1

RESET

Specifications

Min.

Typ.

Max.

1

-

8

80

-

-

-

-

20

-

-

20

2

-

-

-

-

20

8

-

-

Unit

MHz

nS

nS

mS

tSYS

nS

tSYS

XIN

RESET

INT0, INT1

INT2, INT3

EC0, EC1

1/fCP

tSYS

tCPW

tCPW

tRCP

tFCP

0.5V

VDD-0.5V

tRST

0.2VDD

tEPW

tEPW

tREP

tFEP

0.2VDD

0.8VDD

Figure 7-1 Timing Chart

Oct. 1999 Ver 1.0

13

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