S-34C02A datasheet(6/34 Pages) SII

6 / 34 page

2-WIRE CMOS SERIAL E2PROM FOR DIMM SERIAL PRESENCE DETECT

S-34C02A

Rev.1.2_00

Seiko Instruments Inc.

AC Electrical Characteristics

Table 9 Measurement Conditions

Input pulse voltage

0.1

× VCC to 0.9 × VCC

Input pulse rising / falling time

20 ns

Output determination voltage

0.5

× VCC

Output load

100 pF

+Pull-up resistor 1.0 kΩ

SDA

C = 100 pF

VCC

R = 1.0 k

Ω

Figure 3 Output Load Circuit

Table 10

VCC = 2.5 to 5.5 V

VCC = 1.6 to 2.5 V

Item

Symbol

Min.

Max.

Min.

Max.

Unit

SCL clock frequency

fSCL

400

100

kHz

SCL clock time “L”

tLOW

1.3

−

4.7

−

µs

SCL clock time “H”

tHIGH

0.6

−

4.0

−

µs

SDA output delay time

tAA

0.1

0.9

0.1

3.5

µs

SDA output hold time

tDH

−

100

−

Start condition setup time

tSU.STA

0.6

−

4.7

−

µs

Start condition hold time

tHD.STA

0.6

−

4.0

−

µs

Data input setup time

tSU.DAT

100

−

200

−

Data input hold time

tHD.DAT

−

Stop condition setup time

tSU.STO

0.6

−

4.0

−

µs

SCL SDA rising time

−

0.3

−

1.0

µs

SCL SDA falling time

−

0.3

−

0.3

µs

WP setup time

tWS1

−

µs

WP hold time

tWH1

−

µs

WP release setup time

tWS2

−

µs

WP release hold time

tWH2

−

µs

Bus release time

tBUF

1.3

−

4.7

−

µs

Noise suppression time

−

100

SCL

SDA

(in)

SDA

(out)

tBUF

tSU.STO

tSU.DAT

tHD.DAT

tDH

tAA

tHIGH

tLOW

tHD.STA

tSU.STA

Figure 4 Bus Timing

S-34C02A Datasheet(PDF) 6 Page - Seiko Instruments Inc

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