M68AW256M
10/23
DC AND AC PARAMETERS
This section summarizes the operating and mea-
surement conditions, as well as the DC and AC
characteristics of the device. The parameters in
the following DC and AC Characteristic tables are
derived from tests performed under the Measure-
ment Conditions listed in the relevant tables. De-
signers should check that the operating conditions
in their projects match the measurement condi-
tions when using the quoted parameters.
Table 4. Operating and AC Measurement Conditions
Figure 6. AC Measurement I/O Waveform Figure 7. AC Measurement Load Circuit
Parameter M68AW256M
V
CC
Supply Voltage
2.7 to 3.6V
Ambient Operating Temperature
Range 1 0 to 70°C
Range 6 –40 to 85°C
Load Capacitance (C
L
)
30pF
Output Circuit Protection Resistance (R
1
)
3.0k
Load Resistance (R
2
)
3.1k
Input Rise and Fall Times 1ns/V
Input Pulse Voltages
0 to V
CC
Input and Output Timing Ref. Voltages
V
CC
/2
Output Transition Timing Ref. Voltages
V
RL
= 0.3V
CC
; V
RH
= 0.7V
CC
AI05831
V
CC
I/O Timing Reference Voltage
0V
V
CC
/2
V
CC
Output Timing Reference Voltage
0V
0.7V
CC
0.3V
CC
AI05832
V
CC
OUT
C
L
includes probe and 1 TTLcapacitance
DEVICE
UNDER
TEST
C
L
R
1
R
2
11/23
M68AW256M
Table 5. Capacitance
Note: 1. Sampled only, not 100% tested.
2. At T
A
= 25°C, f = 1 MHz, V
CC
= 3.0V.
Table 6. DC Characteristics
Note: 1. Average AC current, cycling at t
AVAV
minimum.
2. E
= V
IL
, LB OR/AND UB = V
IL
, V
IN
= V
IL
OR V
IH
.
3. E
0.2V, LB OR/AND UB 0.2V, V
IN
0.2V OR V
IN
V
CC
–0.2V.
4. Output disabled.
Figure 8. Address Controlled, Read Mode AC Waveforms
Note: E = Low, G = Low, W = High, UB = Low and/or LB = Low.
Symbol
Parameter
(1,2)
Test
Condition
Min Max Unit
C
IN
Input Capacitance on all pins (except DQ)
V
IN
= 0V
8pF
C
OUT
Output Capacitance
V
OUT
= 0V
10 pF
Symbol Parameter Test Condition
-L -N
Unit
Min Max Min Max
I
CC1
(1,2)
Operating Supply Current
V
CC
= 3.6V, f = 1/t
AVAV
,
I
OUT
= 0mA
70ns 20 10 mA
55ns 26 15 mA
I
CC2
(3)
Operating Supply Current
V
CC
= 3.6V, f = 1MHz,
I
OUT
= 0mA
22mA
I
SB
Standby Supply Current
CMOS
V
CC
= 3.6V, f = 0,
E V
CC
–0.2V or
LB
=UB V
CC
–0.2V
20 20 µA
I
LI
Input Leakage Current
0V V
IN
V
CC
1 1–11µA
I
LO
Output Leakage Current
0V
V
OUT
V
CC
(4)
1 1–11µA
V
IH
Input High Voltage 2.2
V
CC
+ 0.3
2.2
V
CC
+ 0.3
V
V
IL
Input Low Voltage –0.3 0.6
0.3
0.6 V
V
OH
Output High Voltage
I
OH
= –1.0mA
2.4 2.4 V
V
OL
Output Low Voltage
I
OL
= 2.1mA
0.4 0.4 V
AI03956b
tAVAV
tAVQV tAXQX
A0-A17
DQ0-DQ7 and/or DQ8-DQ15
VALID
DATA VALID
M68AW256M
12/23
Figure 9. Chip Enable or Output Enable Controlled, Read Mode AC Waveforms.
Note: Write Enable (W) = High.
Figure 10. Chip Enable or UB/LB Controlled, Standby Mode AC Waveforms
AI03957c
tAVAV
tAVQV tAXQX
tELQV
tELQX
tEHQZ
tGLQV
tGLQX
tGHQZ
VALID
A0-A17
E
G
DQ0-DQ15
VALID
tBLQV
tBLQX
tBHQZ
UB, LB
AI03856
tPD
I
CC
tPU
I
SB
50%
E, UB, LB

M68AW256ML70ND6T

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
IC SRAM 4M PARALLEL 44TSOP II
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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