Cypress STK12C68 User Manual
STK12C68
Document Number: 001-51027 Rev. **
Page 7 of 20
Maximum Ratings
Exceeding maximum ratings may shorten the useful life of the
device. These user guidelines are not tested.
device. These user guidelines are not tested.
Storage Temperature ................................. –65
°C to +150°C
Temperature under Bias ............................. –55
°C to +125°C
Voltage on Input Relative to GND.....................–0.5V to 7.0V
Voltage on Input Relative to Vss............ –0.6V to V
CC
+ 0.5V
Voltage on DQ
0-7
or HSB .......................–0.5V to Vcc + 0.5V
Power Dissipation.......................................................... 1.0W
DC output Current (1 output at a time, 1s duration) .... 15 mA
Operating Range
Range
Ambient Temperature
V
CC
Commercial
0
°C to +70°C
4.5V to 5.5V
Industrial
-40
°C to +85°C
4.5V to 5.5V
DC Electrical Characteristics
Over the operating range (V
CC
= 4.5V to 5.5V)
Parameter
Description
Test Conditions
Min
Max
Unit
I
CC1
Average V
CC
Current
t
RC
= 25 ns
t
RC
= 35 ns
t
RC
= 45 ns
Dependent on output loading and cycle rate. Values obtained
without output loads.
I
without output loads.
I
OUT
= 0 mA.
85
75
65
75
65
mA
mA
mA
mA
mA
I
CC2
Average V
CC
Current
during STORE
All Inputs Do Not Care, V
CC
= Max
Average current for duration t
STORE
3
mA
I
CC3
Average V
CC
Current at
t
RC
= 200 ns, 5V, 25°C
Typical
WE > (V
CC
– 0.2V). All other inputs cycling.
Dependent on output loading and cycle rate. Values obtained
without output loads.
without output loads.
10
mA
I
CC4
Average V
CAP
Current
during AutoStore Cycle
All Inputs Do Not Care, V
CC
= Max
Average current for duration t
STORE
2
mA
I
SB1
V
CC
Standby Current
(Standby, Cycling TTL
Input Levels)
Input Levels)
t
RC
= 25 ns, CE > V
IH
t
RC
= 35 ns, CE > V
IH
t
RC
= 45 ns, CE > V
IH
27
24
20
24
20
mA
mA
mA
mA
mA
I
SB2
V
CC
Standby Current
CE > (V
CC
– 0.2V). All others V
IN
< 0.2V or >
(V
CC
– 0.2V). Standby current level after
nonvolatile cycle is complete.
Inputs are static. f = 0 MHz.
Inputs are static. f = 0 MHz.
Commercial
1.5
mA
Industrial
2.5
mA
I
IX
Input Leakage Current V
CC
= Max, V
SS
< V
IN
< V
CC
-1
+1
μA
I
IX
Input Leakage Current V
CC
= Max, V
SS
< V
IN
< V
CC
-1
+1
μA
I
OZ
Off State Output
Leakage Current
Leakage Current
V
CC
= Max, V
SS
< V
IN
< V
CC
, CE or OE > V
IH
or WE < V
IL
-5
+5
μA
V
IH
Input HIGH Voltage
2.2
V
CC
+
0.5
V
V
IL
Input LOW Voltage
V
SS
– 0.5
0.8
V
V
OH
Output HIGH Voltage
I
OUT
= –4 mA
2.4
V
V
OL
Output LOW Voltage
I
OUT
= 8 mA
0.4
V
V
BL
Logic ‘0’ Voltage on
HSB Output
HSB Output
I
OUT
= 3 mA
0.4
V
V
CAP
Storage Capacitor
Between Vcap pin and Vss, 6V rated. 68 µF +20% nom.
54
260
µF
Notes
4. V
CC
reference levels throughout this data sheet refer to VCC if that is where the power supply connection is made, or V
CAP
if VCC is connected to ground.
5. CE > V
IH
does not produce standby current levels until any nonvolatile cycle in progress has timed out.