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TMS28F004Axy, TMS28F400Axy
524288 BY 8-BIT/
262
144 BY 16-BIT
AUTO-SELECT BOOT-BLOCK FLASH MEMORIES
SMJS829A – JANUARY 1996 – REVISED AUGUST 1997
21
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
CC
(see Note 4)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply voltage range, V
PP
(see Note 4)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range: All inputs except A9, RP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RP, A9 (see Note 5)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage range (see Note 6)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, T
A
, during read/erase/program: L suffix
– 0.6 V to 7 V
– 0.6 V to 14 V
– 0.6 V to V
CC
+ 1 V
– 0.6 V to 13.5 V
– 0.6 V to V
CC
+ 1 V
0
°
C to 70
°
C
. . . . . . . . . . . . . .
– 40
°
C to 85
°
C
. . . . . . . . . . . .
– 40
°
C to 125
°
C
. . . . . . . . . .
– 65
°
C to 150
°
C
E suffix
Q suffix
Storage temperature range, T
stg
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES:
4. All voltage values are with respect to VSS.
5. The voltage on any input or output can undershoot to – 2 V for periods less than 20 ns. See Figure 8.
6. The voltage on any input or output can overshoot to 7 V for periods less than 20 ns. See Figure 9.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IOL
IOH
Output
Under
Test
CL
(see Note A)
VZ
VIH
VOLTAGE WAVEFORMS
VIL
VOH
VOL
NOTES: A. CL includes probe and fixture capacitance.
B. AC test conditions are driven at VIH and VIL, Timing measurements are made at VOH and VOL levels on both inputs and outputs.
See Table 9 for values based on VCC operating range..
C. Each device must have a 0.1 F ceramic capacitor connected to VCC and VSS as close as possible to the device pins.
Figure 7. Load Circuit and Voltage Waveforms
Table 9. AC Test Conditions
VCC RANGE
5 V
±
10%
3.3
±
0.3 V
2.7 to 3.6 V
IOL
2.1
IOH
–0.4
VZ
1.5
VOL
0.8
VOH
2.0
VIL
0.45
VIH
2.4
CL
100
tf
tr
< 10
< 10
0.5
–0.5
1.5
1.5
1.5
0.0
3.0
50
< 10
< 10
0.1
–0.1
1.35
1.35
1.35
0.0
2.7
50
< 10
< 10
VZ is the measured value used to detect high impedance.
– 2.0 V
–0.6 V
+0.8 V
5 ns
5 ns
20 ns
Figure 8. Maximum Negative Overshoot Waveform