LC87FBG08A datasheet(18/30 Pages) ONSEMI

18 / 30 page

LC87FBG08A

No.A2046-18/30

SIO1 Serial I/O Characteristics

at Ta = -40

°C to +85°C, VSS1 = 0V (Note 4-2-1)

Parameter

Symbol

Pin/

Remarks

Conditions

Specification

VDD[V]

min

typ

max

unit

Frequency

tSCK(3)

SCK1(P15)

• See Fig. 5.

1.8 to 5.5

tCYC

Low level

pulse width

tSCKL(3)

High level

pulse width

tSCKH(3)

Frequency

tSCK(4)

SCK1(P15)

• CMOS output selected

• See Fig. 5.

1.8 to 5.5

Low level

pulse width

tSCKL(4)

1/2

tSCK

High level

pulse width

tSCKH(4)

1/2

Data setup time

tsDI(2)

SI1(P14),

SB1(P14)

• Must be specified with

respect to rising edge of

SIOCLK.

• See Fig. 5.

1.8 to 5.5

(1/3)tCYC

+0.01

μs

Data hold time

thDI(2)

0.01

Output delay time

tdD0(4)

SO1(P13),

SB1(P14)

• Must be specified with respect to

falling edge of SIOCLK.

• Must be specified as the time to

the beginning of output state

change in open drain output

mode.

• See Fig. 5.

1.8 to 5.5

(1/2)tCYC

+0.05

Note 4-2-1: These specifications are theoretical values. Add margin depending on its use.

Pulse Input Conditions

at Ta = -40

°C to +85°C, VSS1 = 0V

Parameter

Symbol

Pin/Remarks

Conditions

Specification

VDD[V]

min

typ

max

unit

High/low level

pulse width

tPIH(1)

tPIL(1)

INT0(P70),

INT1(P17),

INT2(P16),

INT4(P20 to P21)

• Interrupt source flag can be set.

• Event inputs for timer 0 or 1 are

enabled.

1.8 to 5.5

tCYC

tPIH(2)

tPIL(2)

INT3(P15) when noise

filter time constant is

1/1

• Interrupt source flag can be set.

• Event inputs for timer 0 are

enabled.

1.8 to 5.5

tPIH(3)

tPIL(3)

INT3(P15) when noise

filter time constant is

1/32

• Interrupt source flag can be set.

• Event inputs for timer 0 are

nabled.

1.8 to 5.5

tPIH(4)

tPIL(4)

INT3(P15) when noise

filter time constant is

1/128

• Interrupt source flag can be set.

• Event inputs for timer 0 are

enabled.

1.8 to 5.5

256

tPIL(5)

RES

• Resetting is enabled.

1.8 to 5.5

200

μs

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