DS1305
3-WIRE AC ELECTRICAL CHARACTERISTICS
(Over the operating range, unless otherwise specified.) (Figure 10 and Figure 11)
PARAMETER
SYMBOL
VCC = 2.0V
CC = 5V
VCC = 2.0V
CC = 5V
VCC = 2.0V
CC = 5V
VCC = 2.0V
CC = 5V
VCC = 2.0V
CC = 5V
VCC = 2.0V
CC = 5V
VCC = 2.0V
CC = 5V
VCC = 2.0V
CC = 5V
VCC = 2.0V
CC = 5V
VCC = 2.0V
CC = 5V
MIN
200
50
280
70
TYP
MAX
UNITS NOTES
Data to CLK Setup
tDC
tCDH
tCDD
tCL
ns
ns
3,4
3,4
3,4,5
4
V
CLK to Data Hold
CLK to Data Delay
CLK Low Time
V
800
200
ns
V
1000
250
1000
250
ns
V
CLK High Time
tCH
ns
4
V
0.6
2.0
2000
500
CLK Frequency
tCLK
tR, tF
tCC
MHz
ns
4
V
DC
CLK Rise and Fall
CE to CLK Setup
CLK to CE Hold
CE Inactive Time
CE to Output High-Z
SCLK to Output High-Z
V
4
1
240
60
4
µs
4
4
V
tCCH
tCWH
tCDZ
tCCZ
ns
V
µs
4
V
1
VCC = 2.0V
VCC = 5V
VCC = 2.0V
280
70
280
70
ns
3,4
3,4
ns
V
CC = 5V
17 of 21
DALLAS [ DALLAS SEMICONDUCTOR ]
