BR93LC46-W / BR93LC46F-W / BR93LC46RF-W /

Memory ICs

BR93LC46FJ-W / BR93LC46RFJ-W / BR93LC46FV-W

(2) Operation timing characteristics

For 5V operation (unless otherwise noted, Ta =

Parameter

Symbol

Min.

Typ.

Max.

Unit

−−

1

MHz

450

−−

ns

450

−−

ns

450

−−

ns

50

−−

ns

100

−−

ns

0

−−

ns

100

−−

ns

−−

500

ns

−−

500

ns

−−

500

ns

−−

100

ns

−−

10

ms

SK clock frequency

SK "HIGH" time

SK "LOW" time

CS "LOW" time

CS setup time

DI setup time

CS hold time

DI hold time

Data "1" output delay time

Data "0" output delay time

Time from CS to output confirmation

Time from CS to output High impedance

Write cycle time

For low voltage operation (unless otherwise noted, Ta =

Parameter

Symbol

Min.

Typ.

Max.

Unit

−−

250

kHz

1

−−

µs

1

−−

µs

1

−−

µs

200

−−

ns

400

−−

ns

0

−−

ns

400

−−

ns

−−

2

µs

−−

2

µs

−−

2

µs

−−

400

ns

−−

25

ms

SK clock frequency

SK "HIGH" time

SK "LOW" time

CS "LOW" time

CS setup time

DI setup time

CS hold time

DI hold time

Data "1" output delay time

Data "0" output delay time

Time from CS to output confirmation

Time from CS to output High impedance

Write cycle time

When reading at low voltage (unless otherwise noted, Ta =

Parameter

Symbol

Min.

Typ.

Max.

Unit

−−

200

kHz

2

−−

µs

2

−−

µs

2

−−

µs

400

−−

ns

800

−−

ns

0

−−

ns

800

−−

ns

−−

4

µs

−−

4

µs

−−

800

ns

SK clock frequency

SK "HIGH" time

SK "LOW" time

CS "LOW" time

CS setup time

DI setup time

CS hold time

DI hold time

Data "1" output delay time

Data "0" output delay time

Time from CS to output High impedance

Not designed for radiative rays.