Rainbow Electronics DS1747P - Manual (Page 8)

DS1747/DS1747P
8 of 18
DC ELECTRICAL CHARACTERISTICS
(Over the Operating Range; V
CC
= 3.3V ± 10%)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Active Supply Current Icc 30 mA 2,3
TTL Standby Current
( CE = V
IH
)
Icc
1
2 mA 2,3
CMOS Standby Current
( CE
³V
CC
-0.2V)
Icc
2
2 mA 2,3
Input Leakage Current (any
input)
I
IL
-1 +1 mA
Output Leakage Current
(any output)
I
OL
-1 +1 mA
Output Logic 1 Voltage
(I
OUT
= -1.0 mA)
V
OH
2.4 1
Output Logic 0 Voltage
(I
OUT
= +2.1 mA)
V
OL
0.4 1
Write Protection Voltage V
PF
2.80 2.97 V 1
Battery Switch Over Voltage
V
SO
V
BAT
or
V
PF
V 1,4
READ CYCLE, AC CHARACTERISTICS
(Over the Operating Range; V
CC
= 5.0V ± 10%)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Read Cycle Time
t
RC
70 ns
Address Access Time
t
AA
70 ns
CE to DQ Low-Z
t
CEL
5 ns
CE E Access Time
t
CEA
70 ns
CE Data Off Time
t
CEZ
25 ns
OE to DQ Low-Z
t
OEL
5 ns
OE Access Time
t
OEA
35 ns
OE Data Off Time
t
OEZ
25 ns
Output Hold from Address
t
OH
5 ns