
LTC2755
4
2755f
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Power Supply
VDD
Supply Voltage
●
2.7
5.5
V
IDD
Supply Current, VDD
Digital Inputs = 0V or VDD
●
0.5
1
μA
Digital Inputs
VIH
Digital Input High Voltage
3.3V ≤ VDD ≤ 5.5V
2.7V ≤ VDD < 3.3V
●
2.4
2
V
VIL
Digital Input Low Voltage
4.5V < VDD ≤ 5.5V
2.7V ≤ VDD ≤ 4.5V
●
0.8
0.6
V
IIN
Digital Input Current
VIN = GND to VDD
●
±1
μA
CIN
Digital Input Capacitance
VIN = 0V (Note 11)
●
6pF
Digital Outputs
VOH
IOH = 200μA
2.7V ≤ VDD ≤ 5.5V
●
VDD – 0.4
V
VOL
IOL = 200μA
2.7V ≤ VDD ≤ 5.5V
●
0.4
V
TIMING CHARACTERISTICS The ● denotes specications that apply over the full operating temperature range,
otherwise specications are at TA = 25°C.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VDD = 4.5V to 5.5V
Write and Update Timing
t1
I/O Valid to WR Rising Edge Set-Up
●
7ns
t2
I/O Valid to WR Rising Edge Hold
●
7ns
t3
WR Pulse Width Low
●
15
ns
t4
UPD Pulse Width High
●
15
ns
t5
UPD Falling Edge to WR Falling Edge
No Data Shoot-Through
●
0ns
t6
WR Rising Edge to UPD Rising Edge
(Note 11)
●
0ns
t7
D/S Valid to WR Falling Edge Set-Up Time
●
7ns
t8
WR Rising Edge to D/S Valid Hold Time
●
7ns
t9
A2-A0 Valid to WR Falling Edge Setup Time
●
5ns
t10
WR Rising Edge to A2-A0 Valid Hold Time
●
0ns
t11
A2-A0 Valid to UPD Rising Edge Setup Time
●
9ns
t12
UPD Falling Edge to A2-A0 Valid Hold Time
●
7ns
Readback Timing
t13
WR Rising Edge to READ Rising Edge
●
7ns
t14
READ Falling Edge to WR Falling Edge
(Note 11)
●
20
ns
t15
READ Rising Edge to I/O Propagation Delay
CL = 10pF
●
40
ns
t26
A2-A0 Valid to READ Rising Edge Setup Time
●
20
ns
t27
READ Falling to A2-A0 Valid Hold Time
(Note 11)
●
0ns
ELECTRICAL CHARACTERISTICS V
DD = 5V, VREF = 5V unless otherwise specied. The ● denotes the
specications which apply over the full operating temperature range, otherwise specications are at TA = 25°C.