ST6387 datasheet(80/84 Pages) STMICROELECTRONICS

80 / 84 page

80/84

ST63E85, T85 ST63E87, T87

2.4 AC ELECTRICAL CHARACTERISTICS

(TA = 0 to +70°C, fOSC=8MHz, VDD=4.5 to 6.0V unless otherwise specified)

Notes:

1. A clock other than 8MHz will affect the frequency response of those peripherals (D/A, and SPIs) whose clock is derived from the system

clock.

2. The rise and fall times of PORT A have been increased in order to avoid current spikes while maintaining a high drive capability

3. Not 100% Tested

4. Based on extrapolated data

Symbol

Parameter

Test Conditions

Value

Unit

Min.

Typ.

Max.

tWRES

Minimum Pulse Width

RESET Pin

125

tOHL

High to Low Transition Time

PA6, PA7

VDD = 5V, CL = 1000pF

(2)

100

tOHL

High to Low Transition Time

DA0-DA5, PB0-PB6, OSD

Outputs, PC0-PC7

VDD = 5V, CL = 100pF

(2)

tOLH

Low to High Transition Time

PB0-PB6, PA0-PA3, OSD

Outputs, PC0-PC3

VDD = 5V, CL = 100pF

tOH

Data HOLD Time SPI after

clock goes low I²CBUS/S-BUS

only

PB0-PB6, PA0-PA3, OSD

Outputs, PC0-PC3

VDD = 5V, CL = 100pF

175

fDA

D/A Converter Repetition Fre-

quency (1)

31.25

kHz

fSIO

SIO Baudrate (1)

62.50

kHz

tWEE

EEPROM Write Time

TA = 25°C One Byte

Endurance

EEPROM WRITE/ERASE Cy-

cles

QA LOT

Acceptance Criteria

300,000

> 1

million

cycles

Retention

EEPROM Data Retention (4)

TA = 25°C

years

CIN

Input Capacitance (3)

All Inputs Pins

COUT

Output Capacitance (3)

All Outputs Pins

COSCin,

COSCout

Oscillator Pins Internal

Capacitance (3)

5pF

COSDin,

COSDout

Oscillator Pins External

Capacitance

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