Datasheet

M48T08, M48T08Y, M48T18 DC and AC parameters
Doc ID 2411 Rev 11 21/31
Table 9. DC characteristics
Figure 12. Power down/up mode AC waveforms
Note: Inputs may or may not be recognized at this time. Caution should be taken to keep E1
high
or E2 low as V
CC
rises past V
PFD
(min). Some systems may perform inadvertent WRITE
cycles after V
CC
rises above V
PFD
(min) but before normal system operations begin. Even
though a power on reset is being applied to the processor, a reset condition may not occur
until after the system clock is running.
Symbol Parameter Test condition
(1)
1. Valid for ambient operating temperature: T
A
= 0 to 70 °C; V
CC
= 4.75 to 5.5 V or 4.5 to 5.5 V (except where noted).
M48T08/M48T18/T08Y
Unit
Min Max
I
LI
Input leakage current 0V ≤ V
IN
≤ V
CC
±1 µA
I
LO
(2)
2. Outputs deselected.
Output leakage current 0V ≤ V
OUT
≤ V
CC
±1 µA
I
CC
Supply current Outputs open 80 mA
I
CC1
(3)
3. Measured with control bits set as follows: R = '1'; W, ST, FT = '0.'
Supply current (standby) TTL E1 = V
IH,
E2 = V
IL
3mA
I
CC2
(3)
Supply current (standby) CMOS
E1 = V
CC
– 0.2V,
E2 = V
SS
+ 0.2V
3mA
V
IL
Input low voltage –0.3 0.8 V
V
IH
Input high voltage 2.2 V
CC
+ 0.3 V
V
OL
Output low voltage I
OL
= 2.1 mA 0.4 V
Output low voltage (INT)
(4)
4. The INT pin is open drain.
I
OL
= 0.5 mA 0.4 V
V
OH
Output high voltage I
OH
= –1 mA 2.4 V
AI00566
V
CC
INPUTS
INT
(PER CONTROL INPUT)
OUTPUTS
DON'T CARE
HIGH-Z
tF
tFB
tPFX
tR
tPFH
trec
tPD tRB
tDR
VALID VALID
NOTE
(PER CONTROL INPUT)
RECOGNIZEDRECOGNIZED
V
PFD
(max)
V
PFD
(min)
V
SO