Worth Data 520-RF Specifications download pdf (Page 10)

Si4730/31/34/35-D60

10 Rev. 1.2

Figure 4. 3-Wire Control Interface Write Timing Parameters

Figure 5. 3-Wire Control Interface Read Timing Parameters

Table 5. 3-Wire Control Interface Characteristics

= 2.7 to 5.5 V, V

= 1.62 to 3.6 V, T

= –20 to 85 °C)

Parameter Symbol Test Condition Min Typ Max Unit

SCLK Frequency f

CLK

0—2.5MHz

SCLK High Time t

HIGH

25 — — ns

SCLK Low Time t

LOW

25 — — ns

SDIO Input, SEN

to SCLKSetup t

20 — — ns

SDIO Input to SCLKHold t

HSDIO

10 — — ns

SEN

Input to SCLKHold t

HSEN

10 — — ns

SCLKto SDIO Output Valid t

CDV

Read 2 — 25 ns

SCLKto SDIO Output High Z t

CDZ

Read 2 — 25 ns

SCLK, SEN

, SDIO, Rise/Fall time t

, t

— — 10 ns

Note: When selecting 3-wire mode, the user must ensure that a rising edge of SCLK does not occur within 300 ns before the

rising edge of RST

SCLK

70%

30%

SEN

70%

30%

SDIO

A7 A0

70%

30%

HSDIO

HSEN

A6-A5,

R/W,

A4-A1

Address In Data In

D15 D14-D1 D0

HIGH

LOW

½ Cycle Bus

Turnaround

SCLK

70%

30%

SEN

70%

30%

SDIO

70%

30%

HSDIO

CDV

CDZ

Address In Data Out

A7 A0

A6-A5,

R/W,

A4-A1

D15 D14-D1 D0

HSEN

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 41 42

Comments to this Manuals

No comments

Worth Data 520-RF Specifications Page 10

Comments to this Manuals

Related products and manuals for Bar code readers Worth Data 520-RF