Rainbow Electronics DS1673 - Manual (Page 14)

DS1673
14 of 18
AC ELECTRICAL CHARACTERISTICS (0 °C to 70°C; V
CC
=5.0V ±=10%)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Data to Clock Setup t
DC
50 ns 8
CLK to Data Hold t
CDH
70 ns 8
CLK to Data Delay t
CDD
200 ns 8, 9, 10
CLK to Low Time t
CL
250 ns 8
CLK to High Time t
CH
250 ns 8
CLK Frequency t
CLK
2.0 MHz 8
CLK Rise and Fall t
R
, t
F
500 ns
CS to CLK Setup t
CC
1 µs 8
CLK to CS Hold t
CCH
60 ns 8
CS Inactive Time t
CWH
1 µs 8
CS to I/O High-Z t
CDZ
70 ns 8
V
CC
Slew Rate (4.5V to 2.3V) t
F
1 ms
V
CC
Slew Rate (2.3V to 4.5V) t
R
0 ns
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
8 15 ns
Nominal Voltage to V
CC
Switchover
Fall Time
t
FB
200 µs