SM8213 查看數據表（PDF） - Nippon Precision Circuits

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SM8213

POCSAG Decoder For Multiframe Pagers

Nippon Precision Circuits  

SM8213AM

AC Characteristics

Recommended operating conditions unless otherwise noted

Parameter

Symbol

Condition

XT clock frequency

XT clock duty cycle

SCK clock pulsewidth

SCK clock interval

(except WRITE mode)

SCK clock interval (WRITE mode)

SDI data setup time

SDI data hold time

SDO data setup time

SDO data hold time

ATTN data setup time

ATTN data hold time

CLKO clock rise time

CLKO clock fall time

CLKO clock delay time

RSTN pulsewidth

f CYXT

D XT

t PWSC

tCYSC

t CYSC

t SSDI

t HSDI

t SSDO

t HSDO

t SATT

t HATT

t RCLK

t FCLK

D CLKO

t PWRS

512 bps

1200 bps

2400 bps

No load

No load

Rating

Unit

min

typ

max

−250 ppm

76.8

+250 ppm

kHz

25

–

75

%

2

–

150

µs

5

–

1900

5

–

830

µs

5

–

415

5

–

830

µs

1

–

–

µs

1

–

–

µs

3

–

–

µs

–

–

0

µs

0

–

–

µs

1

–

–

µs

–

–

500

ns

–

–

500

ns

–

–

1

µs

1

–

–

ms

Parameter/address set timing

ATTN

SCK

SDI

tHATT

tPWSC

1

tSSDI

tHSDI

INPUT

DATA 1

tCYSC

2

INPUT

DATA 2

3

INPUT

DATA 3

32

INPUT

DATA 32

1/ 2*VDD

Auxiliary operating mode set timing

ATTN

SCK

SDI

Decoder Mode

tHATT

tPWSC

1

tSSDI

tHSDI

Decoder

Setting1

2

Decoder

Setting 2

tCYSC

Current Mode

START command : 66 bit time max

Others : 2 bit time max

8

1/ 2*VDD

Decoder

Setting 8

Next Mode

NIPPON PRECISION CIRCUITS—5

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