Rainbow Electronics DS1673 - Manual (Page 15)

DS1673
15 of 18
AC ELECTRICAL CHARACTERISTICS (0 °C to 70°C; V
CC
=3.0V ±=10%)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Data to Clock Setup t
DC
150 ns 8
CLK to Data Hold t
CDH
210 ns 8
CLK to Data Delay t
CDD
600 ns 8, 9, 10
CLK to Low Time t
CL
750 ns 8
CLK to High Time t
CH
750 ns 8
CLK Frequency t
CLK
0.667 MHz 8
CLK Rise and Fall t
R
, t
F
1500 ns
CS to CLK Setup t
CC
3 µs 8
CLK to CS Hold t
CCH
180 ns 8
CS Inactive Time t
CWH
3 µs 8
CS to I/O High-Z t
CDZ
210 ns 8
V
CC
Slew Rate (2.7V to 2.3V) t
F
300 µs
V
CC
Slew Rate (2.3V to 2.7V) t
R
0 ns
V
CC
Detect to RST (V
CC
Falling)
t
RPD
200 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
40 ns
Chip Enable Propagation Delay to
External SRAM t
CED
8 25 ns
Nominal Voltage to V
CC
Switchover
Fall Time
t
FB
300 µs