SPC58ECX datasheet(85/153 Pages) STMICROELECTRONICS

85 / 153 page

DS11620 Rev 8

85/153

SPC584Cx, SPC58ECx

Electrical characteristics

105

Table 47. DSPI CMOS master classic timing (full duplex and output only)

MTFE = 0, CPHA = 0 or 1

Symbol

C Characteristic

Condition

Value(1)

Unit

Pad drive(2)

Load (CL)Min

Max

1tSCK

CC D SCK cycle time

SCK drive strength

Very strong

25 pF

59.0

—

Strong

50 pF

80.0

—

Medium

50 pF

200.0

—

2tCSC

CC D

PCS to SCK

delay

SCK and PCS drive strength

Very strong

25 pF

(N(3) × tSYS(4))–

—

Strong

50 pF

(N(3) × tSYS(4))–

—

Medium

50 pF

(N(3) × tSYS(4))–

—

PCS medium

and SCK

strong

PCS = 50 pF

SCK = 50 pF

(N(3) × tSYS(4))–

—

3tASC

CC D After SCK delay

SCK and PCS drive strength

Very strong

PCS = 0 pF

SCK = 50 pF

(M(5) × tSYS(4))–

—

Strong

PCS = 0 pF

SCK = 50 pF

(M(5) × tSYS(4))–

—

Medium

PCS = 0 pF

SCK = 50 pF

(M(5) × tSYS(4))–

—

PCS medium

and SCK

strong

PCS = 0 pF

SCK = 50 pF

(M(5) × tSYS(4))–

—

4tSDC

CC D

SCK duty

cycle(6)

SCK drive strength

Very strong

0 pF

1/2tSCK –2

1/2tSCK +2

Strong

0 pF

1/2tSCK –2

1/2tSCK +2

Medium

0 pF

1/2tSCK –5

1/2tSCK +5

PCS strobe timing

5tPCSC CC D

PCSx to PCSS

time(7)

PCS and PCSS drive strength

Strong

25 pF

16.0

—

6tPASC CC D

PCSS to PCSx

time(7)

PCS and PCSS drive strength

Strong

25 pF

16.0

—

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