Hyundai GMS90X51C, GMS90X52C, GMS90X54C AC Characteristics for GMS90X5XC series 33MHz version

Page 39

GMS90X5XC Series

HYUNDAI MicroElectronics

AC Characteristics for GMS90X5XC series (33MHz version)

VCC= 5V + 10%, −15%; VSS= 0V; TA= 0°C to 70°C

(CL for port 0. ALE and PSEN outputs = 100pF; CL for all other outputs = 80pF)

External Program Memory Characteristics

33 MHz Oscillator

Variable Oscillator

Parameter

Symbol

1/tCLCL = 3.5 to 33MHz

Unit

Min.

Max.

Min.

Max.

ALE pulse width

tLHLL

40

-

2tCLCL-20

-

ns

Address setup to ALE

tAVLL

10

-

tCLCL-20

-

ns

Address hold after ALE

tLLAX

10

-

tCLCL-20

-

ns

ALE low to valid instruction in

tLLIV

-

56

-

4tCLCL-65

ns

ALE to

tLLPL

15

-

tCLCL-15

-

ns

PSEN

pulse width

tPLPH

80

-

3tCLCL-20

-

ns

PSEN

to valid instruction in

tPLIV

-

35

-

3tCLCL-55

ns

PSEN

Input instruction hold after

tPXIX

0

-

0

-

ns

PSEN

Input instruction float after

tPXIZ †

-

20

-

tCLCL-10

ns

PSEN

Address valid after

tPXAV †

25

-

tCLCL-5

-

ns

PSEN

Address to valid instruction in

tAVIV

-

91

-

5tCLCL-60

ns

Address float to

tAZPL

0

-

0

-

ns

PSEN

†Interfacing the GMS90X5XC series to devices with float times up to 35 ns is permissible. This limited bus contention will not cause

any damage to port 0 Drivers.

Jan. 2001 Ver 1.0

35

Image 39

Contents GMS90X51C GMS90X52C GMS90X54C Page Mask GMS90C51C Block DiagramGMS90C52C/54C GMS90L52C/54CLow voltage versions Plcc Pin Configuration top view PIN ConfigurationEA / VPP ALE / Prog Pdip Pin Configuration top viewMqfp Pin Configuration top view Logic Symbol XTAL2 PIN Definitions and FunctionsPin Number Symbol FunctionProgram Store Enable ResetAddress Latch Enable Circuit ground potentialNo connection Functional Description Block Diagram of the GMS90X5XC seriesSpecial Function Register PSW CPUSpecial Function Registers E0H C0HD0H FFH D8HD0H Contents of SFRs, SFRs in Numeric Order Address RegisterE0H F0HGF1 GF0 PDE Idle C8H T2CON TF2 EXF2 Rclk Tclk EXEN2 TR2 CP/RL2 Clock Generation Diagram X2 ModeMode Swithcing Waveforms Input Clock Timer / Counter 0Timer/Counter 0 and 1 Operating Modes Description TmodT2EX TimerTimer/Counter 2 Operating Modes P1.1 Remarks Input ClockSM0 SM1 Serial Interface UsartUsart Operating Modes Baudrate DescriptionInterrupt Request Sources Interrupt SystemInterrupt Priority-Within-Level Interrupt Source Power Saving Modes Absolute Maximum Ratings Electrical CharacteristicsDC Characteristics for GMS90C51C/52C/54C Parameter Symbol Limit Values Unit Test Conditions MinPower supply current Hyundai MicroElectronics VCC= 3.3V + 0.3V, -0.6V VSS=0V TA= 0C to 70C DC Characteristics for GMS90L51C/52C/54CExplanation of the AC Symbols AC Characteristics for GMS90X5XC series 12MHz versionExternal Program Memory Characteristics GMS90X5XC Series Advance Information 12MHz External Clock Drive AC Characteristics for GMS90X5XC series 16MHz version Advance Information 16MHz External Clock Drive AC Characteristics for GMS90X5XC series 24MHz version Advance Information 24MHz External Clock Drive AC Characteristics for GMS90X5XC series 33MHz version Advance Information 33MHz External Clock Drive AC Characteristics for GMS90X5XC series 40MHz version Advance Information 40MHz External Clock Drive External Program Memory Read Cycle External Data Memory Read Cycle AC Testing Input, Output Waveforms Oscillator Circuit 44PLCC Plastic Package P-LCC-44Plastic Package P-DIP-40 Plastic Package P-MPQF-44 GMS90X5XC Series ROM Protection GMS90X5XC-GC