ST14C02 データシートの表示（PDF） - STMicroelectronics

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ST14C02

Memory Card IC 2 Kbit (256 x 8) Serial I2C Bus EEPROM

STMicroelectronics 

Figure 7. Write Cycle Polling Flowchart using ACK

WRITE Cycle

in Progress

START Condition

DEVICE SELECT

with RW = 0

First byte of instruction

with RW = 0 already

decoded by ST14C02C

NO ACK

Returned

YES

Next

NO

Operation is

Addressing the

Memory

ReSTART

YES

Send

Byte Address

STOP

ST14C02C

Proceed

WRITE Operation

Proceed

Random Address

READ Operation

AI02454

Table 6. AC Measurement Conditions

Input Rise and Fall Times

≤ 20 ns

Input Pulse Voltages

0.2VCC to 0.8VCC

Input and Output Timing

Reference Voltages

0.3VCC to 0.7VCC

Figure 8. AC Testing Input/Output Waveform

0.8VCC

0.7VCC

0.2VCC

0.3VCC

AI00825

Table 7. Capacitance 1 (TA = 25 °C, f = 100 kHz)

Symbol

Parameter

Test Condition

Min.

Max.

Unit

CIN

Input Capacitance (SDA)

8

pF

CIN

Input Capacitance (other pins)

6

pF

tNS

Noise suppression Time Con-

stant (SCL & SDA Inputs)

Note: 1. Sampled only, not 100% tested.

100

400

ns

7/12

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