U637256 Datasheet, PDF (3/14 Pages) List of Unclassifed Manufacturers – CapStore 32K x 8 nvSRAM

Recommended
Operating Conditions
Power Supply Voltage
Input Low Voltage
Input High Voltage
U637256
Symbol
Conditions
V_CC
V_IL
-2 V at Pulse Width
10 ns permitted
V_IH
Min.
4.5
-0.3
2.2
Max.
5.5
0.8
V_CC+0.3
Unit
V
V
V
DC Characteristics
Operating Supply Current^b
Average Supply Current during^c
STORE
Operating Supply Current^b
at t_cR = 200 ns
(Cycling CMOS Input Levels)
Standby Supply Current^d
(Cycling TTL Input Levels)
Standby Supply Curent^d
(Stable CMOS Input Levels)
Symbol
I_CC1
I_CC2
I_CC3
I_CC(SB)1
I_CC(SB)
Conditions
V_CC
= 5.5 V
V_IL
= 0.8 V
V_IH
= 2.2 V
t_c
= 70 ns
V_CC
= 5.5 V
E
≤ 0.2 V
W
≥ V_CC-0.2 V
V_IL
≤ 0.2 V
V_IH
≥ V_CC-0.2 V
V_CC
= 5.5 V
W
≥ V_CC-0.2 V
V_IL
≤ 0.2 V
V_IH
≥ V_CC-0.2 V
V_CC
= 5.5 V
E
= V_IH
t_c
= 70 ns
V_CC
= 5.5 V
E
≥ V_CC-0.2 V
V_IL
≤ 0.2 V
V_IH
≥ V_CC-0.2 V
C-Type
K-Type
Unit
Min. Max. Min. Max.
60
65 mA
6
7 mA
15
15 mA
20
22 mA
3
3 mA
b: I_CC1 and I_CC3 are depedent on output loading and cycle rate. The specified values are obtained with outputs unloaded.
The current I_CC1 is measured for WRITE/READ - ratio of 1/2.
c: I_CC2 is the average current required for the duration of the SoftStore STORE cycle.
d: Bringing E ≥ V_IH will not produce standby current levels until a software initiated nonvolatile cycle in progress has timed out.
See MODE SELECTION table. The current I_CC(SB)1 is measured for WRITE/READ - ratio of 1/2.
August 15, 2006
STK Control #ML0054
3
Rev 1.1