Rainbow Electronics DS1305 - Manual (Page 18)

DS1305
18 of 20
Figure 11. TIMING DIAGRAM: 3-WIRE WRITE DATA TRANSFER
SPI AC ELECTRICAL CHARACTERISTICS
Over the operating range*
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
V
CC
= 2.0V 200
Data to CLK Setup t
DC
V
CC
= 5V 50
ns 5,6
V
CC
= 2.0V 280
CLK to Data Hold t
CDH
V
CC
= 5V 70
ns 5,6
V
CC
= 2.0V 800
CLK to Data Delay t
CDD V
CC
= 5V 200
ns 5,6,7
V
CC
= 2.0V 1000
CLK Low Time t
CL V
CC
= 5V 250
ns 6
V
CC
= 2.0V 1000
CLK High Time t
CH
V
CC
= 5V 250
ns 6
V
CC
= 2.0V 0.6
CLK Frequency t
CLK
V
CC
= 5V DC 2.0
MHz 6
V
CC
= 2.0V 2000
CLK Rise and Fall t
R,
t
F
V
CC
= 5V 500
ns
V
CC
= 2.0V 4
CE to CLK Setup t
CC V
CC
= 5V 1
µs 6
V
CC
= 2.0V 240
CLK to CE Hold t
CCH
V
CC
= 5V 60
ns 6
V
CC
= 2.0V 4
CE Inactive Time t
CWH
V
CC
= 5V 1
µs 6
V
CC
= 2.0V 280
CE to Output High-Z t
CDZ
V
CC
= 5V 70
ns 5,6
*Unless otherwise specified.