Rainbow-electronics DS1670 Manual de usuario descargar pdf (Pagina 14)

DS1670

14 of 17

AC ELECTRICAL CHARACTERISTICS (0°C to 70°C; V

CC

= 3.3V ± 10%)

PARAMETER SYMBOL MIN TYP MAX UNITS NOTES

Data to Clock Setup t

DC

100 ns 8

CLK to Data Hold t

CDH

140 ns 8

CLK to Data Delay t

CDD

400 ns 8, 9, 10

CLK to Low Time t

CL

500 ns 8

CLK to High Time t

CH

500 ns 8

CLK Frequency t

CLK

1.0 MHz 8

CLK Rise and Fall t

R,

t

F

1000 ns

CS to CLK Setup t

CC

2

µs

8

CLK to CS Hold t

CCH

120 ns 8

CS Inactive Time t

CWH

2

µs

8

CS to I/O High Z t

CDZ

140 ns 8

SCLK to I/O High Z t

CCZ

140 ns 8

V

CC

Slew Rate (2.85V to

2.3V)

t

F

300

µs

V

CC

Slew Rate (2.3V to

2.85V)

t

R

0ns

V

CC

Detect to RST

(V

CC

Falling)

t

RPD

100 ns

Reset Active Time t

RST

250 ms 15

Pushbutton Debounce PB

DB

250 ms 15

V

CC

Detect to RST

(V

CC

Rising)

t

RPU

250 ms 15, 16

ST Pulse Width

t

ST

20 ns

Chip Enable Propagation

Delay to External SRAM

t

CED

815ns

Nominal Voltage to V

CC

Switchover Fall Time

t

FB

200

µs

1 2 ... 9 10 11 12 13 14 15 16 17

Comentarios a estos manuales

Sin comentarios